26 results on '"Zarychta K"'
Search Results
2. Physical activity planning interventions, body fat and energy-dense food intake in dyads: ripple, spillover, or compensatory effects?
- Author
-
Kulis E, Szczuka Z, Banik A, Siwa M, Boberska M, Zarychta K, Zaleskiewicz H, Knoll N, Radtke T, Scholz U, Schenkel K, and Luszczynska A
- Abstract
Objectives: It is unclear if planning to change one behavior may prompt changes in other health behaviors or health outcomes. This study tested if physical activity (PA) planning interventions may result in (i) a body fat reduction in target persons and their dyadic partners (a ripple effect), (ii) a decrease in energy-dense food intake (a spillover effect), or an increase in energy-dense food intake (a compensatory effect)., Method: N = 320 adult-adult dyads were assigned to an individual ('I-for-me'), dyadic ('we-for-me'), or collaborative ('we-for-us') PA planning intervention or a control condition. Body fat and energy-dense food intake were measured at baseline and at the 36-week follow-up., Results: No Time x Condition effects were found for target persons' body fat. There was a reduction in body fat among partners participating in any PA planning intervention, compared to the control condition. Across conditions, target persons and partners reduced energy-dense food intake over time. The reduction was smaller among target persons assigned to the individual PA planning condition compared to the control condition., Conclusions: PA planning interventions delivered to dyads may result in a ripple effect involving body fat reduction among partners. Among target persons, the individual PA planning may activate compensatory changes in energy-dense food intake.
- Published
- 2023
- Full Text
- View/download PDF
3. Cultivation and Enabling Effects of Social Support and Self-Efficacy in Parent-Child Dyads.
- Author
-
Banik A, Zarychta K, Knoll N, and Luszczynska A
- Subjects
- Child, Child, Preschool, Female, Humans, Male, Parent-Child Relations, Self Report, Social Support, Parents, Self Efficacy
- Abstract
Background: There are two alternative mechanisms, elucidating the reciprocal relationship between self-efficacy and social support when explaining health outcomes: self-efficacy beliefs may operate as the establisher of social support (the cultivation model) or social support may enable the formation of self-efficacy beliefs (the enabling model)., Purpose: In line with the cultivation hypothesis, it was tested if self-efficacy (measured in parents and children) would indirectly predict parental and child moderate-to-vigorous physical activity (MVPA), via the mediator, social support (parent-provided, child-received). In line with the enabling hypothesis, it was tested if social support would predict MVPA indirectly, via the mediator, self-efficacy., Methods: A total of 879 parent-child dyads (1758 individuals; 52.4% girls, aged 5-11 years old, 83.2% mothers) provided self-reports at the baseline (T1) and the 7- to 8-month follow-up (T2). Body weight and height were measured objectively. Manifest path analyses were performed, controlling for the baseline levels of the mediator and dependent variables., Results: A similar number of significant simple indirect effects was found for the cultivation and the enabling model. Across the models, the indirect effects followed similar patterns: (a) within-individual indirect effects in children; (b) across-individual indirect effects, with the independent variable measured in children and the mediator/dependent variables measured in parents (e.g., child self-efficacy predicted parental support provision and, indirectly, parental MVPA); (c) across-individual indirect effects, accounting for self-efficacy and MVPA measured in children, combined with parental reports of social support., Conclusions: The findings provide support for both cultivation and enabling models in the context of MVPA among parent-child dyads., (© The Author(s) 2021. Published by Oxford University Press on behalf of the Society of Behavioral Medicine.)
- Published
- 2021
- Full Text
- View/download PDF
4. Parental and Child Self-Efficacy Explaining Food Intake through Self-Regulation: A Dyadic Prospective Study.
- Author
-
Zarychta K, Banik A, Kulis E, and Lobczowska K
- Subjects
- Child, Child, Preschool, Diet, Eating, Feeding Behavior, Fruit, Humans, Parents, Prospective Studies, Vegetables, Self Efficacy, Self-Control
- Abstract
Background: According to social cognitive theory and socio-ecological models, self-efficacy and temptation-related self-regulation (the use of distraction or suppression) are modifiable predictors of health behaviors, such as food intake. Yet, there is limited evidence explaining how these factors are interlinked among parent-child dyads. This study investigated indirect effects of parental and child self-efficacy on food intake, via parental and child self-regulation., Methods: The prospective study (the baseline [T1] and the 10-month follow-up [T2]) enrolled 924 parent-child dyads (1,848 individuals; 54.3% girls, aged 5-11 years, 88.9% mothers). Dyads were interviewed or completed self-report measures. Path analyses with maximum likelihood estimation were conducted., Results: Child self-efficacy and distraction (T1) mediated between parental self-efficacy (T1) and higher levels of child fruit and vegetable intake (T2). No significant mediating effects of suppression were found, nor indirect effects of parental self-efficacy (T1) on energy-dense food intake (T2)., Conclusion: Health promotion interventions aiming at changing fruit and vegetable intake among 5-11-year-old children should target enhancing parental and child self-efficacy that may facilitate the use of self-regulation and, in turn, healthy diet., (© 2020 The Authors. Applied Psychology: Health and Well-Being published by John Wiley & Sons Ltd on behalf of International Association of Applied Psychology.)
- Published
- 2021
- Full Text
- View/download PDF
5. Maternal practices and perceptions of child body mass status explain child energy expenditure behaviors and body mass.
- Author
-
Boberska M, Zarychta K, Knoll N, Keller J, Hohl DH, Horodyska K, Kruk M, and Luszczynska A
- Subjects
- Body Mass Index, Body Weight, Child, Female, Humans, Perception, Child Behavior, Energy Metabolism
- Abstract
This study investigated whether maternal perceptions of child body mass status would predict child body mass index (BMI) z-score via two sets of sequential mediators: (1) four maternal practices promoting child energy expenditure and (2) children's energy expenditure behaviors. The data of N = 729 mother-child dyads were collected at baseline [T1; n = 495 at 7- to 8-month follow-up (T2)]. Mothers reported perceptions of child body mass status and maternal practices (T1); children reported sedentary screen use and physical activity (T1, T2). Child body mass was assessed objectively (T1, T2). Higher stimulation to be active (T1) was related to a lower child BMI z-score (T2) via higher levels of child physical activity (T2). Higher levels of monitoring of screen use (T1) were associated with higher child BMI z-score (T2) via lower levels of child physical activity (T2). Encouraging parents to stimulate their children to be active may be beneficial for children's weight maintenance.
- Published
- 2020
- Full Text
- View/download PDF
6. A phase II study of pomalidomide, daily oral cyclophosphamide, and dexamethasone in relapsed/refractory multiple myeloma.
- Author
-
Van Oekelen O, Parekh S, Cho HJ, Vishnuvardhan N, Madduri D, Richter J, Ip C, Lau K, Florendo E, Mancia IS, Thomas J, Verina D, Chan E, Zarychta K, La L, Strumolo G, Melnekoff DT, Leshchenko VV, Kim-Schulze S, Couto S, Wang M, Pierceall WE, Thakurta A, Laganà A, Jagannath S, and Chari A
- Subjects
- Antineoplastic Combined Chemotherapy Protocols adverse effects, Cyclophosphamide adverse effects, Dexamethasone therapeutic use, Humans, Thalidomide analogs & derivatives, Tumor Microenvironment, Multiple Myeloma drug therapy
- Abstract
Relapsed/refractory multiple myeloma patients treated with pomalidomide and dexamethasone have an overall response rate (ORR) of ∼30% and median progression-free survival (PFS) of 4-5 months. Previous studies explored addition of weekly cyclophosphamide, but we hypothesized that daily dosing allows for better synergy. We report the open-label, single-center phase II study of pomalidomide, daily cyclophosphamide and weekly dexamethasone (PCD). Thirty-three patients were evaluable for efficacy and underwent 28-day cycles of pomalidomide (4 mg/day, D1-21), cyclophosphamide (50 mg b.i.d., D1-21) and weekly dexamethasone. All were lenalidomide-refractory and 55% were refractory to lenalidomide and proteasome inhibitor. ORR was 73%; median PFS and overall survival were 13.3 months and 57.2 months respectively. Grade 3/4 toxicities were primarily hematologic but manageable with dose reductions. Early disease progression correlated with MYC expression and flow cytometry demonstrates an activated microenvironment post-PCD. Addition of metronomic cyclophosphamide to pomalidomide and dexamethasone is a cost-effective, oral regimen with encouraging PFS.
- Published
- 2020
- Full Text
- View/download PDF
7. Body areas satisfaction and body mass in adolescents: mediating effects of actual-ideal body weight discrepancies.
- Author
-
Zarychta K, Horodyska K, and Chan CKY
- Subjects
- Adolescent, Body Image, Body Mass Index, Body Weight, Female, Humans, Longitudinal Studies, Male, Prospective Studies, Self Concept, Ideal Body Weight, Personal Satisfaction
- Abstract
Purpose: This study aims at investigating prospective associations between body areas satisfaction (BAS), actual (objectively measured)-ideal body weight discrepancy, actual (self-reported)-ideal body weight discrepancy and BMI among adolescents from the general population., Methods: Data were collected at three measurement points: baseline (T1), 2-month follow-up (T2), 13-month follow-up (T3) among 1011 adolescents (59.3% girls) aged 13-19 years (M = 16.30, SD = 0.82) with BMIs ranging from 15.20 to 38.78 (M = 20.01, SD = 3.33). Adolescents completed questionnaires regarding BAS (T1), actual and ideal body weight (T2). Body weight and height were measured objectively (T1 and T3)., Results: Adolescents satisfied with most areas of their bodies had lower levels of actual (objectively measured)-ideal body weight discrepancy, which in turn predicted higher BMI, while lower levels of actual (self-reported)-ideal body weight discrepancy predicted lower BMI. No moderating effect of gender was found., Conclusions: Actual-ideal weight discrepancies may operate in complex manner prompting opposite effects on BMI., Level of Evidence: Level III, longitudinal study without control group.
- Published
- 2020
- Full Text
- View/download PDF
8. Do Parent-Child Dyads with Excessive Body Mass Differ from Dyads with Normal Body Mass in Perceptions of Obesogenic Environment?
- Author
-
Zarychta K, Banik A, Kulis E, Boberska M, Radtke T, Chan CKY, Lobczowska K, and Luszczynska A
- Subjects
- Adult, Body Constitution, Child, Child, Preschool, Female, Health Promotion, Humans, Male, Marketing, Middle Aged, Young Adult, Diet, Healthy psychology, Food, Ideal Body Weight, Obesity psychology, Overweight psychology, Parent-Child Relations, Perception
- Abstract
Background: This study addressed differences between parent-child dyads with excessive body mass (overweight or obesity) and dyads with normal body mass in obesity determinants, derived from social-ecological models. It was hypothesized that parents and their 5-11 years-old children with excessive body mass would (1) report lower availability of healthy food at home, (2) perceive fewer school/local community healthy eating promotion programs, (3) report lower persuasive value of food advertising., Methods: Data were collected twice (T1, baseline; T2, 10-month follow-up), including n = 129 parent-child dyads with excessive body mass and n = 377 parent-child dyads with normal body mass. Self-reported data were collected from parents and children; with body weight and height assessed objectively. General linear models (including analysis of variance with repeated measures) were performed to test the hypotheses., Results: Compared to dyads with normal body mass, dyads of parents and children with excessive body mass perceived lower availability of healthy food at home and fewer healthy eating promotion programs at school/local community (T1 and T2). These effects remained significant after controlling for sociodemographic variables. No significant differences in persuasive value of food advertising were found., Conclusions: Perceptions of availability of healthy food at home and healthy nutrition promotion may be relatively low in parent-child dyads with excessive weight which, in turn, may constitute a risk factor for maintenance of obesity.
- Published
- 2020
- Full Text
- View/download PDF
9. Parental Depression Predicts Child Body Mass via Parental Support Provision, Child Support Receipt, and Child Physical Activity: Findings From Parent/Caregiver-Child Dyads.
- Author
-
Zarychta K, Banik A, Kulis E, Boberska M, Radtke T, Chan CKY, and Luszczynska A
- Abstract
Objective: Although there is substantial evidence corroborating the within-individual associations between depression, social support, moderate-to-vigorous physical activity (MVPA), and body mass, much less is known about across-individual associations. This study investigated the indirect associations between parental depression and objectively measured body mass in children. In particular, it was hypothesized that higher levels of parental depression (measured at Time 1, T1) would explain higher levels of child body mass in children (assessed at Time 2, T2), via three mediators, namely parental reports of provision of MVPA support (T1), child reports of receipt of MVPA support (T1), and child MVPA (T2)., Design: Parent-child dyads provided self-reports twice, at baseline (T1) and 7- to 8-month follow-up (T2). A total of 879 dyads were enrolled (1,758 individuals; 5- to 11-year-old children, 52.4% girls, 83.2% mothers). Body weight and height were measured objectively. Manifest path analyses were performed to test the indirect effects., Results: Analyses corroborated the assumed indirect effects: high levels of depression in parents (T1) were indirectly associated with high levels of body mass in children (T2), via three mediators: low levels of parental support provision (T1), low levels of child support receipt (T1), and low levels of child MVPA (T2). The alternative models assuming that either parental support provision or child support receipt can be excluded as the mediators yelded a poor model-data fit. The hypothesized mediation effects were corroborated when controlling for the baseline levels of parental and child MVPA and body mass., Conclusion: The findings confirm complex across-individual effects of parental depression on high levels of body mass in children. Parental mental health may contribute to the childhood obesity epidemic., (Copyright © 2020 Zarychta, Banik, Kulis, Boberska, Radtke, Chan and Luszczynska.)
- Published
- 2020
- Full Text
- View/download PDF
10. Recapturing disease response: A phase 2 study of carfilzomib 56 mg/m 2 in patients with relapsed or refractory multiple myeloma who have progressed on carfilzomib 27 mg/m 2 .
- Author
-
Barley K, Sanchez L, Cho HJ, Parekh S, Madduri D, Richter J, Isola L, Goldstein T, Dhadwal A, Zarychta K, Sanchez GM, Catamero D, Verina D, Florendo E, Yum MH, La L, Gullie J, Chan E, Jagannath S, and Chari A
- Subjects
- Disease-Free Survival, Female, Humans, Male, Middle Aged, Oligopeptides adverse effects, Survival Rate, Multiple Myeloma drug therapy, Multiple Myeloma mortality, Oligopeptides administration & dosage
- Published
- 2020
- Full Text
- View/download PDF
11. Body satisfaction and body weight in under- and healthy-weight adolescents: mediating effects of restrictive dieting, healthy and unhealthy food intake.
- Author
-
Zarychta K, Chan CKY, Kruk M, and Luszczynska A
- Subjects
- Adolescent, Diet, Healthy psychology, Female, Health Behavior, Humans, Male, Body Image psychology, Body Weight physiology, Diet, Eating psychology, Feeding Behavior psychology, Personal Satisfaction, Self Concept, Thinness psychology
- Abstract
Purpose: Theoretical models, such as the transdiagnostic model of eating disorders highlight the role of cognitive factors (e.g., the way people perceive their bodies) and their associations with maladaptive weight management behaviors resulting in underweight. This paper aims at testing the indirect association of adolescent's body satisfaction and body mass index (BMI) through restrictive dieting, healthy eating or unhealthy eating as well as moderating role of adolescent's weight status., Methods: The study was conducted in 16 public middle and high schools in Central and Eastern Poland. A sample of 1042 under- and healthy-weight white adolescents aged 13-20 (BMI: 12.63-24.89) completed two self-reported questionnaires (fruit, vegetable, and energy-dense food intake) with a 11-month interval. Weight and height were measured objectively. Multiple mediation analysis and moderated multiple mediation analysis were conducted to test the study hypotheses., Results: Adolescents less satisfied with their bodies were more likely to diet restrictively and at the same time ate more unhealthy energy-dense food rather than healthy food, which in turn predicted lower BMI. No moderating effects of weight status were found., Conclusions: Low body satisfaction is a risk for restrictive diet and unhealthy food intake. Prevention programs may target under- and healthy-weight adolescents who are highly dissatisfied with their bodies, have a high intake of energy-dense food and apply a restrictive diet at the same time., Level of Evidence: Level III: longitudinal cohort study.
- Published
- 2020
- Full Text
- View/download PDF
12. Associations of parental and child food and exercise aversion with child food intake and physical activity.
- Author
-
Zarychta K, Horodyska K, Gan Y, Chan CKY, Wiggers J, Wolfenden L, Boberska M, and Luszczynska A
- Subjects
- Child, Child, Preschool, Female, Humans, Male, Eating psychology, Exercise psychology, Parents psychology
- Abstract
Objective: The interplay between parental and child food and physical activity aversion, briefly defined as fear or avoidance of novelty or breaking from routine, may explain such child behaviors as inadequate food consumption and physical activity. Two studies were conducted to investigate the associations between child and parental food and physical activity aversion (child self-reported aversion, parental-reported aversion, and parental perceptions of child aversion) and child food intake and physical activity., Method: Parent-child dyads participated in 2 longitudinal studies. Study 1 (food aversion; the baseline [T1] and the 10-month follow-up [T2]) enrolled 924 dyads (1,848 individuals; 54.3% girls, aged 5-11 years old, 88.9% mothers). Study 2 (physical activity aversion; the baseline [T1] and the 7- to 8-month follow-up [T2]) enrolled 879 dyads (1,758 individuals; 52.4% girls, aged 5-11 years old, 83.2% mothers). There was no overlap between the samples enrolled in the two studies. Dyads completed self-report measures; child and parental body weight and height (for calculation of body mass index [BMI] as covariates/potential moderators) were measured objectively. Mediation analyses with 2 sequential mediators were performed., Results: The association between self-reported parental food aversion (T1) and child fruit and vegetable intake (T2) was mediated sequentially by parental perception of child food aversion (T1) and self-reported child food aversion (T2). The same pattern of associations was found for physical activity aversion. Child BMI did not moderate the hypothesized associations., Conclusions: High levels of parental and child aversion operated sequentially in explaining lower levels of child fruit and vegetable intake and physical activity. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
- Published
- 2019
- Full Text
- View/download PDF
13. Links between meaning in life and physical quality of life after rehabilitation: Mediating effects of positive experiences with physical exercises and mobility.
- Author
-
Czekierda K, Zarychta K, Knoll N, Keller J, and Luszczynska A
- Subjects
- Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Musculoskeletal Diseases physiopathology, Musculoskeletal Diseases rehabilitation, Prospective Studies, Stroke physiopathology, Stroke Rehabilitation methods, Exercise psychology, Quality of Life psychology
- Abstract
Background: Indicators of emotional processes (positive experiences with physical exercises) and functional processes (mobility) were previously found to be associated with positive cognitive resources (meaning in life), and the key outcome in the rehabilitation, namely physical quality of life (QOL). Yet, the mediating roles of such processes were not tested. Therefore, this prospective study investigated whether the relationship between meaning in life and physical QOL was mediated by positive experiences with physical exercises and mobility., Methods: Prospective data were collected at two measurement points, 1 month apart. A total of N = 339 participants (aged 19-84 years old, 57.9% women) provided data at Time 1 (T1) at the beginning of inpatient rehabilitation from central nervous system diseases (CNSD, e.g., stroke; n = 89) or musculoskeletal system diseases (MSD, e.g., dorsopathies; n = 250), and n = 234 at Time 2 (T2, the end of rehabilitation; 4 weeks after T1). Mediation analysis with meaning in life as predictor (T1), positive experiences with physical exercises and mobility as sequential mediators (T2), and physical QOL (T2) as the outcome was conducted., Results: Higher meaning in life (T1) predicted more positive experiences with physical exercises (T2), which were associated with a higher level of mobility (T2), which in turn was associated with better physical quality of life (T2)., Conclusions: Meaning in life at the beginning of inpatient rehabilitation may trigger positive experiences with physical exercises and functional changes in mobility levels, leading to better physical quality of life. Screening for low meaning in life may allow to identify patients who are at risk for a lack of improvement of mobility and physical quality of life during rehabilitation., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2019
- Full Text
- View/download PDF
14. Why are you eating, mom? Maternal emotional, restrained, and external eating explaining children's eating styles.
- Author
-
Zarychta K, Kulis E, Gan Y, Chan CKY, Horodyska K, and Luszczynska A
- Subjects
- Adult, Child, Child, Preschool, Emotions, Female, Humans, Male, Middle Aged, Young Adult, Child Behavior psychology, Eating psychology, Feeding Behavior psychology, Mother-Child Relations psychology, Mothers psychology
- Abstract
This study investigated if three maternal eating styles (emotional eating style, external eating style, and restrained eating style) predict respective eating styles in children. In particular, we tested if these associations are different in mother-daughter dyads, compared to mother-son dyads. Data were collected twice, at the baseline (Time 1; T1) and at the 10-month follow-up (Time 2; T2), with N = 822 mother-child dyads participating at T1. Children (55% girls, 5-12 years old, M = 8.21, SD = 1.40) were interviewed; mothers (aged 23-59 years old, M = 35.93, SD = 5.24) completed the questionnaire assessing their eating styles. Participants' weight and height were measured objectively. Path analysis, accounting for dyadic interdependency and autocorrelations, was applied. In mother-daughter dyads, maternal emotional eating (T1) predicted daughters' emotional eating (T2) whereas maternal restrained eating (T1) predicted daughters' restrained eating (T2). There were no effects of external eating in mother-daughter dyads. A different pattern of associations was found for mother-son dyads, with maternal emotional eating (T1) and external eating (T1) predicting sons' emotional eating (T2) and external eating (T2), respectively. There was no effect of maternal restrained eating in mother-son dyads. Maternal eating styles explain child's eating styles with distinct effects depending on child's sex. Educating mothers about the effects of their own eating styles on daughters' and sons' eating styles might be useful to promote adequate responses to hunger and satiety signals., (Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
15. Autologous Lymphocyte Infusion Supports Tumor Antigen Vaccine-Induced Immunity in Autologous Stem Cell Transplant for Multiple Myeloma.
- Author
-
Cohen AD, Lendvai N, Nataraj S, Imai N, Jungbluth AA, Tsakos I, Rahman A, Mei AH, Singh H, Zarychta K, Kim-Schulze S, Park A, Venhaus R, Alpaugh K, Gnjatic S, and Cho HJ
- Subjects
- Adult, Aged, Female, Humans, Lymphocytes immunology, Male, Middle Aged, Multiple Myeloma immunology, Transplantation, Autologous, Antigens, Neoplasm immunology, Cancer Vaccines therapeutic use, Lymphocyte Transfusion, Multiple Myeloma therapy, Neoplasm Proteins immunology, Stem Cell Transplantation
- Abstract
Autologous stem cell transplant (autoSCT), the standard consolidation therapy for multiple myeloma, improves disease-free survival, but is not curative. This could be an ideal setting for immunologic therapy. However, the immune milieu is impaired after autoSCT. We hypothesized that autologous lymphocyte infusion would restore immune competence, allowing immunotherapies such as cancer vaccines to elicit tumor antigen-specific immunity in the setting of autoSCT. In this pilot study (NCT01380145), we investigated safety, immunologic, and clinical outcomes of autologous lymphocyte infusion combined with peri-autoSCT immunotherapy with recombinant MAGE-A3 (a multiple myeloma-associated antigen) and adjuvant. Thirteen patients with multiple myeloma undergoing autoSCT were enrolled. Autologous lymphocyte infusion and MAGE vaccination were well tolerated. Combination immunotherapy resulted in high-titer humoral immunity and robust, antigen-specific CD4
+ T-cell responses in all subjects, and the responses persisted at least one year post-autoSCT. CD4+ T cells were polyfunctional and Th1-biased. CD8+ T-cell responses were elicited in 3 of 13 subjects. These cells recognized naturally processed MAGE-A3 antigen. Median progression-free survival was 27 months, and median overall survival was not reached, suggesting no differences from standard-of-care. In 4 of 8 subjects tested, MAGE-A protein expression was not detected by IHC in multiple myeloma cells at relapse, suggesting therapy-induced immunologic selection against antigen-expressing clones. These results demonstrated that autologous lymphocyte infusion augmentation of autoSCT confers a favorable milieu for immunotherapies such as tumor vaccines. This strategy does not require ex vivo manipulation of autologous lymphocyte products and is an applicable platform for further investigation into combination immunotherapies to treat multiple myeloma., (©2019 American Association for Cancer Research.)- Published
- 2019
- Full Text
- View/download PDF
16. Gender-Specific Body Areas Satisfaction and Body Weight Status in Adolescents: Mediating Effects of Physical Activity, Fruit and Vegetable Intake, and Energy-Dense Food Intake.
- Author
-
Zarychta K, Chan CKY, Kruk M, and Luszczynska A
- Subjects
- Adolescent, Female, Humans, Male, Adolescent Behavior psychology, Body Image psychology, Body Mass Index, Body Weight, Diet, Exercise psychology, Feeding Behavior psychology, Personal Satisfaction
- Abstract
Background: Body satisfaction is one of the key modifiable cognitive determinants of eating behaviours, physical activity, and body mass index (BMI). As the sociocultural models suggest, low body satisfaction may explain unhealthy eating and exercise behaviours. Importantly, body satisfaction levels and body areas that individuals focus on vary across genders. This study aims at investigating links between the global index of body areas satisfaction (BAS), gender-specific BAS, fruit and vegetable (F&V) intake, energy-dense foods intake, moderate-to-vigorous physical activity (MVPA), and BMI., Methods: In all, 1,254 adolescents completed questionnaires and had their weight and height objectively measured with 2- and 13-month follow-ups. Indirect effects of three indices of BAS were tested in three models (male-specific BAS amongst boys; female-specific BAS amongst girls; the global BAS index in the total sample)., Results: Higher levels of all three BAS indices indirectly predicted lower BMI, with higher MVPA mediating this effect. In addition, higher energy-dense foods intake mediated higher global BAS-higher BMI relationship in the total sample. Thus, the global index of BAS acts as double-edged sword, predicting both higher MVPA and energy-dense foods intake., Conclusion: BAS may operate in a complex manner, predicting behaviours which may have opposite effects on BMI., (© 2018 The Authors. Applied Psychology: Health and Well-Being published by John Wiley & Sons Ltd on behalf of International Association of Applied Psychology.)
- Published
- 2019
- Full Text
- View/download PDF
17. From enjoyment to physical activity or from physical activity to enjoyment? Longitudinal associations in parent-child dyads.
- Author
-
Kruk M, Zarychta K, Horodyska K, Boberska M, Scholz U, Radtke T, and Luszczynska A
- Subjects
- Adult, Aged, Child, Child, Preschool, Exercise physiology, Female, Humans, Longitudinal Studies, Male, Middle Aged, Young Adult, Exercise psychology, Parent-Child Relations, Pleasure
- Abstract
Background: This longitudinal dyadic study used cross-lagged analyses to examine reciprocal patterns of associations between physical activity (PA) enjoyment and moderate-to-vigorous PA (MVPA) among children and their parents., Methods: At Time 1 (T1) 879 parent-child dyads provided their data. The follow-up (Time 2, T2) took place 7-8-months later. MVPA and PA enjoyment scales were filled out separately by parents and children at T1 and T2., Findings: Child PA enjoyment (T1) predicted a higher level of child MVPA (T2), parental PA enjoyment (T1) explained a higher level of parental MVPA (T2), and parental MVPA (T1) predicted a higher level of parental PA enjoyment (T2). Furthermore, child PA enjoyment (T1) predicted a higher level of parental PA enjoyment (T2)., Conclusions: Child PA enjoyment was the key variable predicting child and parental outcomes. In particular, it explained child MVPA, but also PA enjoyment among parents.
- Published
- 2018
- Full Text
- View/download PDF
18. Mental Strategies Predict Performance and Satisfaction with Performance among Soccer Players.
- Author
-
Kruk M, Blecharz J, Boberska M, Zarychta K, and Luszczynska A
- Abstract
This study investigated the changes in mental strategies across the season and their effects on performance and satisfaction with individual performance. Data were collected three times: at the pre-season at Time 1 (T1; baseline), in the mid-season at Time 2 (T2; two-month follow-up), and at the end-of-season at Time 3 (T3; nine-month follow-up) among male soccer players (N = 97) aged 16-27. Athletes completed the questionnaires assessing the use of nine psychological strategies in competition and the level of satisfaction with individual performance. Endurance performance was measured objectively with a 300 m run. A high level of relaxation (T1) explained better 300 m run performance (T3) and a high level of self-talk explained a higher satisfaction with individual performance (T3). A rare use of distractibility and emotional control (T1) predicted a higher level of satisfaction with individual performance (T3). No predictive role of other psychological strategies was found. The use of emotional control, relaxation, and distractibility increased over the season, whereas the use of imagery and negative thinking declined. Besides the roles of self-talk, imagery, relaxation and goal-setting, the effects of distractibility and emotional control should be taken into account when considering athletes' mental training programs.
- Published
- 2017
- Full Text
- View/download PDF
19. A phase 2 study of panobinostat with lenalidomide and weekly dexamethasone in myeloma.
- Author
-
Chari A, Cho HJ, Dhadwal A, Morgan G, La L, Zarychta K, Catamero D, Florendo E, Stevens N, Verina D, Chan E, Leshchenko V, Laganà A, Perumal D, Mei AH, Tung K, Fukui J, Jagannath S, and Parekh S
- Abstract
Phase 3 studies combining histone deacetylase inhibitors with bortezomib were hampered by gastrointestinal (GI) intolerance, which was not observed when combined with immunomodulatory drugs. This study is a single-center phase 2 study of panobinostat with lenalidomide and dexamethasone (FRD). Twenty-seven relapsed multiple myeloma patients were enrolled. Twenty-two patients (81%) were lenalidomide refractory and 9 (33%), 14 (52%), and 7 (26%) were refractory to pomalidomide, bortezomib, and carfilzomib, respectively. High-risk molecular findings were present in 17 (63%) patients. Responses included 2 complete responses (CRs), 4 very good partial responses (VGPRs), 5 partial responses (PRs), and 9 minimal responses (MRs) for an overall response rate of 41%, clinical benefit rate of 74%, and a disease control rate of 96%. The median progression-free survival (PFS) was 7.1 months. In the 22 lenalidomide-refractory patients, there were 1 CR, 4 VGPRs, 3 PRs, and 7 MRs, with a median PFS of 6.5 months. Median overall survival was not reached. Grade 3/4 toxicities were primarily hematologic. Gene expression profiling of enrollment tumor samples revealed a set of 1989 genes associated with short (<90 days) PFS to therapy. MAGEA1 RNA and protein expression were correlated with short PFS, and laboratory studies demonstrated a role for MAGE-A in resistance to panobinostat-induced cell death. FRD demonstrates durable responses, even in high-risk, lenalidomide-refractory patients, indicating the essential role of panobinostat in attaining responses. MAGEA1 expression may represent a functional biomarker for resistance to panobinostat. In contrast to PANORAMA 1, there were no significant GI toxicities and primarily expected hematologic toxicities. This trial was registered at www.clinicaltrials.gov as #NCT00742027., Competing Interests: Conflict-of-interest disclosure: The following authors have served as paid consultants for the identified companies: A.C. for Novartis and Celgene; S.J. for Novartis and Celgene; and D.C. and D.V. for Celgene speakers bureau. The remaining authors declare no competing financial interests.
- Published
- 2017
- Full Text
- View/download PDF
20. A vicious cycle among cognitions and behaviors enhancing risk for eating disorders.
- Author
-
Zarychta K, Mullan B, Kruk M, and Luszczynska A
- Subjects
- Adolescent, Adolescent Behavior psychology, Female, Humans, Male, Models, Psychological, Risk Factors, Surveys and Questionnaires, Body Image psychology, Cognition, Feeding Behavior psychology, Feeding and Eating Disorders psychology
- Abstract
Background: Establishing the sequence in which risk factors for eating disorders (ED) emerge would enable more effective ED prevention. Thus, in our study we investigated reciprocal and indirect associations between three cognitive and behavioral ED determinants (appearance orientation, appearance worries, and dieting) emphasized in the transdiagnostic model of ED., Methods: Data were collected in a non-clinical group of adolescents at Time 1 (T1), and then 2-months (Time 2, T2) and 13-months later (Time 3, T3). Participants (N = 1260) aged 13-19 completed a questionnaire encompassing their nutrition behaviors, beliefs about appearance, health and well-being. Weight and height were measured objectively., Results: Higher levels of appearance orientation (T1) were associated with higher levels of appearance worries (T2) which in turn predicted dieting (T3). Dieting (T1) predicted higher levels of appearance orientation (T2) which in turn predicted higher levels of appearance worries (T3). Higher levels of appearance worries (T1) were associated with higher levels of appearance orientation (T2) which in turn predicted dieting (T3). Also, higher levels of appearance worries (T1) were associated with dieting (T2), and higher levels of appearance orientation (T3)., Conclusions: The three transdiagnostic model variables formed a vicious cycle. Therefore, higher levels of one of ED determinants (appearance orientation, appearance worries or dieting) increase the likelihood of the elevated levels of two other ED determinants at follow-ups and thus enhances the risk for ED.
- Published
- 2017
- Full Text
- View/download PDF
21. Am I Overweight? A Longitudinal Study on Parental and Peers Weight-Related Perceptions on Dietary Behaviors and Weight Status Among Adolescents.
- Author
-
Zarychta K, Mullan B, and Luszczynska A
- Abstract
Objective: An investigation of the interplay between various types of adolescents' perceptions of weight status in predicting adolescents' nutrition behavior and their body mass was conducted. In particular, it was hypothesized that the relationship between parental and peers' perceptions of their own weight status (reported by adolescents) and objectively measured weight status of adolescents would be mediated by three types of adolescents' weight status perceptions (adolescents' own weight perceptions, parental perceptions of adolescents' weight status perceived by participants, and peers' perceptions of adolescents' weight status perceived by participants) and by adolescents' nutrition behaviors., Design: Data were collected twice, with a 13-month follow-up. Participants (N = 1096) were aged 14-20, with BMI ranging from 16.20 to 41.21. Multiple mediation analysis with two sequential mediators was applied., Main Outcome Measures: At the baseline adolescents completed the questionnaire assessing their nutrition behaviors and weight status perceptions. Weight and height were measured objectively at baseline and follow-up., Results: Two types of weight perceptions (adolescents' own weight status perceptions, peers' perceptions of adolescents' weight status reported by participants), and adolescents' nutrition behaviors mediated the relationship between the others' own weight perceptions and adolescents' weight status. No indirect effects of others' own weight perceptions on adolescents' weight status through parental perceptions were found., Conclusion: Adolescents' nutrition behaviors and body weight status depend on what they think about their own weight status and what they think of their peers' perceptions, but do not depend on what adolescents think of their parents' perceptions.
- Published
- 2016
- Full Text
- View/download PDF
22. It doesn't matter what they say, it matters how they behave: Parental influences and changes in body mass among overweight and obese adolescents.
- Author
-
Zarychta K, Mullan B, and Luszczynska A
- Subjects
- Adolescent, Body Mass Index, Diet, Feeding Behavior, Female, Humans, Life Style, Longitudinal Studies, Male, Motor Activity, Parent-Child Relations, Surveys and Questionnaires, Young Adult, Adolescent Behavior psychology, Health Behavior, Overweight psychology, Parents, Pediatric Obesity psychology
- Abstract
Objective: This study investigated whether the relationships between perceived parental behaviors (dietary behaviors, physical activity, and verbal pressure) and changes in adolescents' body mass index (BMI) were mediated by adolescents' physical activity and dietary behaviors. The associations were tested among overweight and obese adolescents., Design: Longitudinal data were collected three times, with a 2-month interval between Time 1 (T1) and Time 2 (T2), and a 13-month interval between T2 and Time 3 (T3) in the group of adolescents (N = 100) aged 13-19. There was no experimental manipulation. Mediation analyses with two sequential mediators were conducted., Main Measures: Participants completed the questionnaires assessing their dietary behaviors, physical activity (mediators), perceived parental behaviors, and verbal pressure (independent variables). Adolescents' weight and height were measured objectively (with BMI constituting the outcome variable)., Results: Adolescents who perceived that their parents engaged in a healthy diet and frequent physical activity (T1) self-reported a healthier diet (T2 and T3), higher levels of physical activity (T2 and T3), and their combined index of healthy lifestyle was higher (T2 and T3). In turn, adolescents' behaviors (T2 and T3) were related to lower BMI (T3). Perceived behaviors of parents had a significant, indirect effect on a BMI reduction. There were no effects of the perceived parental verbal pressure (T1) through adolescents' behaviors (T2) on adolescents' BMI (T3)., Conclusion: Perceived parental modeling of healthy diet and frequent physical activity, but not verbal pressure, predicted adolescents' behaviors (diet, physical activity, and a combined lifestyle index) and, in turn, a reduction in their BMI. The role of parents' health behaviors (diet and physical activity) should be taken into account when considering adolescents' overweight and obesity prevention and treatment programs., (Copyright © 2015 Elsevier Ltd. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
23. Planning and self-efficacy interventions encouraging replacing energy-dense foods intake with fruit and vegetable: A longitudinal experimental study.
- Author
-
Luszczynska A, Horodyska K, Zarychta K, Liszewska N, Knoll N, and Scholz U
- Subjects
- Adolescent, Female, Follow-Up Studies, Fruit, Humans, Longitudinal Studies, Male, Obesity prevention & control, Self Report, Vegetables, Eating psychology, Energy Intake, Health Promotion methods, Overweight prevention & control, Self Efficacy
- Abstract
Objective: This longitudinal experimental study compared effects of self-efficacy, planning and education-based conditions, encouraging adolescents to eat fruit and vegetable in place of energy-dense foods., Design: Data were collected among 506 adolescents (13-18 years old) who were randomly assigned to control (n = 181), planning (n = 153) or self-efficacy (n = 172) conditions. Measurements were taken at baseline (T1), at a 2-month follow-up (T2), and at a 14-month follow-up (T3). Interventions/control group procedures were delivered at T1 and T2., Outcome Measures: Self-reports of fruit and vegetable intake (FVI) and energy-dense foods intake were collected at three times. Cognitive mediators (self-efficacy and planning) were assessed at T1 and T2. Body weight and height were objectively measured at T1 and T3., Results and Conclusions: Similar significant increases of FVI were found for planning and self-efficacy interventions (T3). The planning intervention did not influence energy-dense food intake (T3), but the self-efficacy intervention tended to result in stabilising intake (compared to an increase found in the control group). There were no effects on body weight. Similar patterns were found for the total sample and for a subsample of adolescents with overweight/obesity. The effects of interventions on FVI were mediated by respective cognitions.
- Published
- 2016
- Full Text
- View/download PDF
24. The association between automatic thoughts about eating, the actual-ideal weight discrepancies, and eating disorders symptoms: a longitudinal study in late adolescence.
- Author
-
Zarychta K, Luszczynska A, and Scholz U
- Subjects
- Adolescent, Feeding and Eating Disorders psychology, Female, Humans, Longitudinal Studies, Male, Surveys and Questionnaires, Body Weight, Eating psychology, Feeding and Eating Disorders diagnosis, Thinking
- Abstract
Objective: This study tested the reciprocal relationships between automatic thoughts about eating and the actual-ideal weight discrepancies, and their role in the formation and maintenance of eating disorders (ED) symptoms in a non-clinical sample of adolescents. In particular, we investigated whether thoughts about eating mediated the effects of weight discrepancies on ED formation and whether weight discrepancies mediated the effects of thoughts about eating on ED formation were investigated., Method: Data were collected three times, with a 2-month interval between Time 1 (T1) and Time 2 (T2), and a 9-month interval between T2 and Time 3 (T3). Adolescents (N = 55) aged 15-18 filled out the SCOFF Questionnaire, assessing eating disorders symptoms, and the Eating Disorder Thoughts Questionnaire, evaluating automatic thoughts. To assess weight discrepancies questions about actual (subjectively reported) and ideal body weight were asked followed by objective measurement of height and weight., Results: Negative thoughts about eating (T2) mediated the relation between weight discrepancies (T1) and symptoms of anorexia and bulimia (T3). In addition, the association between negative thoughts (T1) and eating disorders symptoms (T3) was mediated by weight discrepancies (T2)., Conclusion: The negative thoughts and the actual (both subjectively reported and objectively measured)-ideal weight discrepancies constitute a vicious cycle, related to higher ED symptoms. Prevention of eating disorders should be directed to adolescents who manifest large weight discrepancies or high levels of negative thoughts about eating, as they are at risk for developing eating disorder symptoms.
- Published
- 2014
- Full Text
- View/download PDF
25. Time-resolved diffusing wave spectroscopy with a CCD camera.
- Author
-
Zarychta K, Tinet E, Azizi L, Avrillier S, Ettori D, and Tualle JM
- Subjects
- Interferometry instrumentation, Light, Sensitivity and Specificity, Image Processing, Computer-Assisted instrumentation, Spectrum Analysis methods
- Abstract
We show how time-resolved measurements of the diffuse light transmitted through a thick scattering slab can be performed with a standard CCD camera, thanks to an interferometric protocol. Time-resolved correlations measured at a fixed photon transit time are also presented. The high number of pixels of the camera allows us to attain a quite good sensitivity for a reasonably low acquisition time.
- Published
- 2010
- Full Text
- View/download PDF
26. Ultimate spatial resolution with Diffuse Optical Tomography.
- Author
-
Azizi L, Zarychta K, Ettori D, Tinet E, and Tualle JM
- Subjects
- Algorithms, Diagnostic Imaging methods, Diffusion, Equipment Design, Imaging, Three-Dimensional, Models, Statistical, Nephelometry and Turbidimetry, Time Factors, Optics and Photonics, Tomography, Optical methods
- Abstract
We evaluate the ultimate transverse spatial resolution that can be expected in Diffuse Optical Tomography, in the configuration of projection imaging. We show how such a performance can be approached using time-resolved measurements and reasonable assumptions, in the context of a linearized diffusion model.
- Published
- 2009
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.