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Effects of participation in popular weight loss and fitness programs on markers of health and fitness in women
Author(s) -
Simbo S.,
Lockard B,
Baetge C,
Levers K,
Galvan E,
Jagim A,
Byrd M,
Jung YP,
Oliver JM,
Koozehchian M,
Dalton R,
Khanna D,
Sanchez B,
Kresta JY,
Horrell K,
Leopold T,
Cho M,
Springer S,
Rivera A,
Cerda C,
Rasmussen C,
Kreider R
Publication year - 2013
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.27.1_supplement.lb306
Subject(s) - waist , medicine , weight loss , bench press , multivariate analysis of variance , analysis of variance , zoology , endocrinology , demography , obesity , biology , resistance training , mathematics , statistics , sociology
125 sedentary women (46±12 yr, 45.5±5% body fat, 35.0±5 kg/m2) were randomized to participate in a control group (C) or Curves Complete® (CC), Weight Watchers® (WW), Jenny Craig® (JC), or Nutrisystem® (NS) weight loss programs for 12‐ wks. Participants in the diet groups were encouraged to exercise (WW, JC, NS) while those in the CC group participated in a structured exercise program. Data were analyzed by MANOVA or ANOVA and are presented as changes from baseline after 12‐wks. Participants in the diet groups had greater changes in waist (C 2.1±6.9; CC −4.7±3.2; WW −4.1±5.7; JC −3.7±3.6; NS −3.3±6.4 %, p=0.001) and hip circumference (C 0.7±2.5; CC −4.0±2.6; WW − 2.5±2.4; JC −4.2±3.5; NS −3.6±3.5 %, p=0.001). Resting HR (− 2.5±9 %, p=0.005) and SBP (−4.0±12 %, p=0.005) decreased over time with no change in DBP. SBP decreased more in some diet and exercise groups compared C (p<0.05). Changes in PAC (C − 2.2±10; CC 14.4±10; WW 7.9±19; JC 8.1±11; NS 3.8±7 %, p=0.001) and 1 RM bench press (C −1.2±14; CC 6.0±12; WW 4.9±15; JC 5.4±14; NS −3.7±15 %, p=0.06). Results indicate diet and exercise programs promote improvements in fitness and the CC program promotes greater changes in aerobic capacity.