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8. Dynamic MR imaging of the skeletal muscle in young and senior volunteers during minimal synchronized neuromuscular electrical stimulation

Author

Deligianni, Xeni, Klenk, Christopher, Place, Nicolas, Garcia, Meritxell, Pansini, Michele, Hirschmann, Anna, Schmidt-Trucksäss, Arno, Bieri, Oliver, and Santini, Francesco

Subjects
Physics - Medical Physics, Quantitative Biology - Tissues and Organs
Abstract

$\textbf{Object}$ Neuromuscular electrical stimulation (NMES)-induced isometric contraction is feasible during MRI and can be combined with acquisition of volumetric dynamic MR data, in a synchronous and controlled way. Since NMES is a potent resource for rehabilitation, MRI synchronized with NMES presents a valuable validation tool. Our aim was to show how minimal NMES-induced muscle contraction characterization, as evaluated through phase contrast MRI, differs between senior and young volunteers. $\textbf{Materials and Methods}$ Simultaneous NMES of the quadriceps muscle and phase contrast imaging were applied at 3T to 11 senior (75 $\pm$ 3 years) and 6 young volunteers (29 $\pm$ 7 years). A current sufficient to induce muscle twitch without knee extension was applied to both groups. $\textbf{Results}$ Strain vectors were extracted from the velocity fields and strain datasets were compared with non-parametric tests and descriptive statistics. Strain values were noticeably different between both groups at both current intensities and significant differences were observed in the regions of interest between the two electrodes. $\textbf{Discussion}$ In conclusion, NMES-synchronized MRI could be successfully applied in senior volunteers with strain results clearly different from the younger volunteers. Also, differences within the senior group were detected both in the magnitude of strain and in the position of maximum strain pixels., Comment: 17 pages, 1 Table, 5 Figures

Published
2020
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9. Sequentially based analysis versus image based analysis of Intima Media Thickness in common carotid arteries studies - Do major IMT studies underestimate the true relations for cardio- and cerebrovascular risk?

Author

Niess A, Schmitz D, Schulze J, Hansel J, Sandrock M, Burkhardt H, and Schmidt-Trucksaess A

Subjects
Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract

Abstract Background Image-based B-mode ultrasound has gained popularity in major studies as a non-invasive method of measuring cardio- and cerebrovascular risk factors. However, none of the major studies appears to have paid sufficient attention to the variation in end diastolic wall process. By using sequentially based analyses (SBA) of Intima-Media Thickness (IMT), the general purpose of this study was to show that the current image based (ECG tracked) analysis (IBA) has some major variations and might underestimate the true relations for cardiovascular events and stroke for IMT measurement. Method The study group consisted of 2500 healthy male subjects aged between 35 to 55 years. 4 sequences (300 images) were analyzed per subject. 750,000 images were analysed throughout the course of this study. Results IBA showed significantly lower mean, maximal, and minimal values for IMT in CCA than for SBA. The correlation analysis between IBA and SBA with the cardio- and cerebrovascular risk factors showed a higher correlation of SBA for all risk factors. The Pearson coefficient was 0.81, p < 0.01, for SBA versus Framingham CHD risk level (FCRL) and 0.49, p = 0.01, for IBA versus FCRL. Conclusion IBA did not measure the true maximal values of the IMT in this study. Together with the correlation analysis, this indicates that IBA might underestimate the true relations for IMT and risk factors.

Published
2008
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24. Alpha-1 antitrypsin deficiency: From the lung to the heart?

Author

Curjuric, Ivan, Imboden, Medea, Bettschart, Robert, Caviezel, Seraina, Dratva, Julia, Pons, Marco, Rothe, Thomas, Schmidt-Trucksäss, Arno, Stolz, Daiana, Thun, Gian Andri, von Eckardstein, Arnold, Kronenberg, Florian, Ferrarotti, Ilaria, and Probst-Hensch, Nicole M.

Published
2018
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28. Motor imagery ability assessments in four disciplines: protocol for a systematic review

Author

Suica, Zorica, Platteau-Waldmeier, Petra, Koppel, Szabina, Schmidt-Trucksaess, Arno, Ettlin, Thierry, Schuster-Amft, Corina, Suica, Zorica, Platteau-Waldmeier, Petra, Koppel, Szabina, Schmidt-Trucksaess, Arno, Ettlin, Thierry, and Schuster-Amft, Corina

Abstract

Introduction: Motor imagery (MI) is a very popular and well-accepted technique in different disciplines. Originating from sport and psychology, MI is now also used in the field of medicine and education. Several studies confirmed the benefits of MI to facilitate motor learning and skill acquisition. The findings indicated that individual’s MI ability might influence the effectiveness of MI interventions. Over the last two centuries, researchers have developed several assessments to evaluate MI’s abstract construct. However, no systematic reviews (SR) exist for MI ability evaluation methods and their measurement properties. Methods and analysis: The SR will evaluate available MI ability assessments and their psychometric properties in four relevant disciplines: sports, psychology, medicine and education. This involves performing searches in SPORTDiscus, PsycINFO, Cochrane Library, Scopus, Web of Science and ERIC. Working independently, two reviewers will screen articles for selection. Then all raw information will be compiled in an overview table—including the articles’ characteristics (eg, a study’s setting or the population demographics) and the MI ability assessment (psychometric properties). To evaluate the articles’ methodological quality, we will use the COSMIN checklist. Then we will evaluate all the included assessments’ quality and perform a best-evidence synthesis. Results of this review will be reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Ethics and dissemination: The SR is based on published data, and ethical approval is not required. This review will provide information on assessment performance and equipment, as well as its main focus and usefulness. Furthermore, we will present the methodological quality of all the included articles and assess the included instruments’ quality. Ultimately, this will act as a valuable resource, providing an overview of MI ability assessments for individua

Published
2023

29. Should sports and exercise medicine be taught in the Swiss undergraduate medical curricula? A survey among 1764 Swiss medical students

Author

Arno Schmidt-Trucksaess, Justin Carrard, Tej Pandya, Laurène Niederhauser, Denis Infanger, and Susi Kriemler

Subjects
Medicine (General), R5-920
Abstract

Objectives The global lack of sports and exercise medicine (SEM) teaching at medical schools contrasts with evidence that physical activity (PA) plays a major role in preventing and treating non-communicable diseases (NCDs). The aims of this study were to (a) examine whether Swiss medical students are expected to acquire SEM-related skills and knowledge, (b) systematically reviewed SEM teaching in the Swiss undergraduate medical curricula, (c) assess if Swiss medical students are aware of SEM and (d) whether they would like SEM to be included in their curricula.Methods Two authors independently screened the ‘Principal Relevant Objectives and Framework for Integrative Learning and Education in Switzerland’ (PROFILES) for SEM-related learning objectives and reviewed the curricula. 7708 Swiss medical students were invited to participate in an online survey.Results 32 SEM-related learning objectives were identified in PROFILES with 20 of them linked to PA. Four of eight Swiss medical schools display limited mandatory SEM teachings. 1764 students participated in the survey (482.0% of the necessary sample size, 22.9% of all Swiss medical students). One in two students knew that SEM includes preventing and treating NCDs. Almost 95% of the participants would like SEM to be included in the curricula.Conclusion Despite its inclusion in PROFILES and comprehensive evidence that SEM should be taught at medical schools, this is scarcely the case in Switzerland. Swiss medical students have limited understanding of SEM, but are keen to have it included in the curricula. This study highlights the need for more comprehensive SEM teaching at Swiss medical schools.

Published
2019
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35. The role of vascular biomarkers for primary and secondary prevention. A position paper from the European Society of Cardiology Working Group on peripheral circulation: Endorsed by the Association for Research into Arterial Structure and Physiology (ARTERY) Society

Author

Vlachopoulos, Charalambos, Xaplanteris, Panagiotis, Aboyans, Victor, Brodmann, Marianne, Cífková, Renata, Cosentino, Francesco, De Carlo, Marco, Gallino, Augusto, Landmesser, Ulf, Laurent, Stéphane, Lekakis, John, Mikhailidis, Dimitri P., Naka, Katerina K., Protogerou, Athanasios D., Rizzoni, Damiano, Schmidt-Trucksäss, Arno, Van Bortel, Luc, Weber, Thomas, Yamashina, Akira, Zimlichman, Reuven, Boutouyrie, Pierre, Cockcroft, John, O'Rourke, Michael, Park, Jeong Bae, Schillaci, Giuseppe, Sillesen, Henrik, and Townsend, Raymond R.

Published
2015
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38. Improved Arterial Inner Wall Detection Using Generalized Median Computation

Author

Cheng, Da-Chuan, Schmidt-Trucksäss, Arno, Liu, Shing-Hong, Jiang, Xiaoyi, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Jiang, Xiaoyi, editor, and Petkov, Nicolai, editor

Published
2009
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41. Norm Values of Muscular Strength Across the Life Span in a Healthy Swiss Population: The COmPLETE Study.

Author

Lichtenstein, Eric, Wagner, Jonathan, Knaier, Raphael, Infanger, Denis, Roth, Ralf, Hinrichs, Timo, Schmidt-Trucksaess, Arno, and Faude, Oliver

Subjects
MUSCLE strength, LIFE spans, LEAN body mass, PHYSICAL activity, GRIP strength
Abstract

Background: Grip strength is used to estimate whole-body strength for health surveillance purposes. Explosive strength is considered important, yet economic measures able to detect early deterioration of neuromuscular capabilities are lacking. Whether handgrip maximum rate of force development (GRFD) or whole-body strength tests are better predictors of lower body power than handgrip maximum strength (GFmax) and their trajectories throughout the life span are unknown. Hypothesis: GRFD should be more closely related to lower body power than GFmax, and its trajectories over the life span should more closely follow that of lower body power. Study Design: Cross-sectional. Level of Evidence: Level 2b. Methods: A total of 613 healthy participants aged 20 to 91 years were tested for countermovement jump peak power, GFmax, handgrip rate of force development, and midthigh pull peak force (MTP). Cubic splines and linear models were built for age trajectories, generalized additive models for quintile curves, and linear regression was used to assess predictive quality. Results: Peak power (Pmax) declined linearly to 60% of young adult level, with GRFD, GFmax, and MTP remaining stable up to age 50 years and then declining more sharply to 52% to 71% of young adult levels. Trajectories were similar for male and female participants. GRFD (β = 0.17) and MTP (β = 0.08) were worse predictors of Pmax than GFmax (β = 0.24) in models adjusted for age, sex, lean body mass, and vigorous physical activity levels. Conclusion: GRFD was not superior to maximum strength in predicting lower body power. For health surveillance purposes, it therefore appears that GFmax tests are more economical and equally good predictors of lower body explosive strength at older age. The data provided can be used as norm values for healthy subjects. Clinical Relevance: Incorporating countermovement jump testing for early detection of declines in explosive capabilities might be advised. [ABSTRACT FROM AUTHOR]

Published
2023
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42. Norm Values of Muscular Strength Across the Life Span in a Healthy Swiss Population: The COmPLETE Study

Author

Eric Lichtenstein, Jonathan Wagner, Raphael Knaier, Denis Infanger, Ralf Roth, Timo Hinrichs, Arno Schmidt-Trucksaess, and Oliver Faude

Subjects
Physical Therapy, Sports Therapy and Rehabilitation, Orthopedics and Sports Medicine
Abstract

Background: Grip strength is used to estimate whole-body strength for health surveillance purposes. Explosive strength is considered important, yet economic measures able to detect early deterioration of neuromuscular capabilities are lacking. Whether handgrip maximum rate of force development (GRFD) or whole-body strength tests are better predictors of lower body power than handgrip maximum strength (GFmax) and their trajectories throughout the life span are unknown. Hypothesis: GRFD should be more closely related to lower body power than GFmax, and its trajectories over the life span should more closely follow that of lower body power. Study Design: Cross-sectional. Level of Evidence: Level 2b. Methods: A total of 613 healthy participants aged 20 to 91 years were tested for countermovement jump peak power, GFmax, handgrip rate of force development, and midthigh pull peak force (MTP). Cubic splines and linear models were built for age trajectories, generalized additive models for quintile curves, and linear regression was used to assess predictive quality. Results: Peak power (Pmax) declined linearly to 60% of young adult level, with GRFD, GFmax, and MTP remaining stable up to age 50 years and then declining more sharply to 52% to 71% of young adult levels. Trajectories were similar for male and female participants. GRFD (β = 0.17) and MTP (β = 0.08) were worse predictors of Pmax than GFmax (β = 0.24) in models adjusted for age, sex, lean body mass, and vigorous physical activity levels. Conclusion: GRFD was not superior to maximum strength in predicting lower body power. For health surveillance purposes, it therefore appears that GFmax tests are more economical and equally good predictors of lower body explosive strength at older age. The data provided can be used as norm values for healthy subjects. Clinical Relevance: Incorporating countermovement jump testing for early detection of declines in explosive capabilities might be advised.

Published
2022

48. sj-docx-1-sph-10.1177_19417381221116345 – Supplemental material for Norm Values of Muscular Strength Across the Life Span in a Healthy Swiss Population: The COmPLETE Study

Author

Lichtenstein, Eric, Wagner, Jonathan, Knaier, Raphael, Infanger, Denis, Roth, Ralf, Hinrichs, Timo, Schmidt-Trucksaess, Arno, and Faude, Oliver

Subjects
111708 Health and Community Services, FOS: Clinical medicine, 110604 Sports Medicine, FOS: Health sciences, 110314 Orthopaedics
Abstract

Supplemental material, sj-docx-1-sph-10.1177_19417381221116345 for Norm Values of Muscular Strength Across the Life Span in a Healthy Swiss Population: The COmPLETE Study by Eric Lichtenstein, Jonathan Wagner, Raphael Knaier, Denis Infanger, Ralf Roth, Timo Hinrichs, Arno Schmidt-Trucksaess and Oliver Faude in Sports Health: A Multidisciplinary Approach

Published
2022
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49. Exercise Therapy for Chronic Symptomatic Peripheral Artery Disease: A Clinical Consensus Document of the European Society of Cardiology Working Group on Aorta and Peripheral Vascular Diseases in Collaboration With the European Society of Vascular Medicine and the European Society for Vascular Surgery

Author

Mazzolai, L., Belch, J., Venermo, M., Aboyans, V., Brodmann, M., Bura-Rivière, A., Debus, S., Espinola-Klein, C., Harwood, A.E., Hawley, J.A., Lanzi, S., Madarič, J., Mahé, G., Malatesta, D., Schlager, O., Schmidt-Trucksäss, A., Seenan, C., Sillesen, H., Tew, G.A., and Visonà, A.

Published
2024
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