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Efficacy of a randomized trial examining commercial weight loss programs and exercise on metabolic syndrome in overweight and obese women.
- Source :
-
Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme [Appl Physiol Nutr Metab] 2017 Feb; Vol. 42 (2), pp. 216-227. Date of Electronic Publication: 2017 Jan 03. - Publication Year :
- 2017
-
Abstract
- While commercial dietary weight-loss programs typically advise exercise, few provide actual programing. The goal of this study was to compare the Curves Complete 90-day Challenge (CC, n = 29), which incorporates exercising and diet, to programs advocating exercise (Weight Watchers Points Plus (WW, n = 29), Jenny Craig At Home (JC, n = 27), and Nutrisystem Advance Select (NS, n = 28)) or control (n = 20) on metabolic syndrome (MetS) and weight loss. We randomized 133 sedentary, overweight women (age, 47 ± 11 years; body mass, 86 ± 14 kg; body mass index, 35 ± 6 kg/m <superscript>2</superscript> ) into respective treatment groups for 12 weeks. Data were analyzed using chi square and general linear models adjusted for age and respective baseline measures. Data are means ± SD or mean change ± 95% confidence intervals (CIs). We observed a significant trend for a reduction in energy intake for all treatment groups and significant weight loss for all groups except control: CC (-4.32 kg; 95% CI, -5.75, -2.88), WW (-4.31 kg; 95% CI, -5.82, -2.96), JC (-5.34 kg; 95% CI, -6.86, -3.90), NS (-5.03 kg; 95% CI, -6.49, -3.56), and control (0.16 kg, 95% CI, -1.56, 1.89). Reduced MetS prevalence was observed at follow-up for CC (35% vs. 14%, adjusted standardized residuals (adjres.) = 3.1), but not WW (31% vs. 28% adjres. = 0.5), JC (37% vs. 42%, adjres. = -0.7), NS (39% vs. 50% adjres. = -1.5), or control (45% vs. 55% adjres. = -1.7). While all groups improved relative fitness (mL·kg <superscript>-1</superscript> ·min <superscript>-1</superscript> ) because of weight loss, only the CC group improved absolute fitness (L/min). In conclusion, commercial programs offering concurrent diet and exercise programming appear to offer greater improvements in MetS prevalence and cardiovascular function after 12 weeks of intervention.
- Subjects :
- Body Mass Index
Cardiorespiratory Fitness
Combined Modality Therapy economics
Double-Blind Method
Energy Intake
Female
Follow-Up Studies
Humans
Insulin Resistance
Metabolic Syndrome epidemiology
Metabolic Syndrome etiology
Middle Aged
Obesity metabolism
Obesity physiopathology
Obesity therapy
Overweight metabolism
Overweight physiopathology
Overweight therapy
Patient Compliance
Prevalence
Resistance Training
Risk Factors
Sedentary Behavior
Texas epidemiology
Weight Loss
Diet, Reducing economics
Exercise
Metabolic Syndrome prevention & control
Obesity diet therapy
Overweight diet therapy
Subjects
Details
- Language :
- English
- ISSN :
- 1715-5320
- Volume :
- 42
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme
- Publication Type :
- Academic Journal
- Accession number :
- 28044449
- Full Text :
- https://doi.org/10.1139/apnm-2016-0456