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z_bumbi
2010-01-11, 14:34
J Clin Hypertens (Greenwich). 2010 Jan;12(1):64-72.
The effects of resistance training on metabolic health with weight regain.

Warner SO, Linden MA, Liu Y, Harvey BR, Thyfault JP, Whaley-Connell AT, Chockalingam A, Hinton PS, Dellsperger KC, Thomas TR.

Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO 65211, USA.

To determine whether resistance training effectively maintains improvements in cardiometabolic syndrome risk factors during weight regain, 9 individuals lost 4% to 6% of their body weight during an 8- to 12-week diet- and aerobic exercise-induced weight loss phase followed by a controlled weight regain phase (8-12 weeks), during which they regained approximately 50% of the lost weight while participating in a supervised resistance training program. Following weight loss (6.0%+/-0.3%), body mass index, body fat percentage, waist circumference, all abdominal adipose tissue depots, total cholesterol, low-density lipoprotein cholesterol, insulin, and homeostasis model assessment (HOMA) were significantly reduced, while quantitative insulin-sensitivity check index (QUICKI) and cardiorespiratory fitness (maximal oxygen consumption) significantly increased. During weight regain (48.3%+/-3.3% of lost weight), body fat percentage, waist circumference, and maximal oxygen consumption were maintained and muscular strength and lean body mass significantly increased. Abdominal adipose tissue depots, insulin, HOMA, and QUICKI did not significantly change after weight regain. Resistance training was effective in maintaining improvements in metabolic health during weight regain.

emi23j
2010-01-11, 14:43
Hmm. Har lite svårt att förstå innebörden av det där..

De gick ned i vikt först och då reducerades bl a HOMA och insulin medan QUICKI och uthålligheten ökade, när de sedan gick upp i vikt igen (+50%) så håll sig uthålligheten på samma nivå och styrkan blev bättre och Insulin, HOMA och QUICKI värdena förändrades inte (alltså samma som efter viktnedgången).

Vad betyder detta för fortsatt träning och prestationsförmåga?