Biology of Sport
pISSN 0860-021X    eISSN 2083-1862
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Journal Abstract
 
The effect of weight loss on serum concentrations of nitric oxide induced by short - term exercise in obese women
M Olszanecka-Glinianowicz, B Zahorska-Markiewicz, P Kocełak, M Plewa, J Janowska
Biol Sport 2009; 26(2):173-182
ICID: 890163
Article type: Original article
IC™ Value: 9.80
Abstract provided by Publisher
 
Objective: The aim of present study was to examine the effect of weight loss comprising regular moderate physical activity on resting serum concentrations of nitric oxide metabolites and exercise induced NO release. Materials and Methods: The study was carried out in 43 obese women without additional diseases (age 41.811.9y, body weight 94.515.1kg, BMI 36.54.6kg/m2). All obese patients participated in a 3-month weight reduction programme that consisted of 1) a group instruction in behavioural and dietary methods of weight control every two weeks; 2) 1000-1400kcal/day balanced diet, and 3) moderate physical exercises (30 minutes, 3 times a week). Before and after treatment body mass and height were measured, body mass index (BMI) was calculated. Body composition was determined by impedance analysis using a Bodystat analyser. The serum concentration of nitric oxide metabolites before and after exercise was measured using spectrophotometry method by Griess. The serum concentrations of lactate before and after exercise were measured with the use of strip test (ACCUSPORT analyzer). Serum concentration of insulin was measured with the use of RIA. Plasma glucose, cholesterol, HDL cholesterol and triglicerydes were determined by enzymatic procedure. Results: The mean weight loss during treatment was 8.34.3 kg. We did not observe differences between resting serum concentrations of NO and lactate before and after weight loss. During exercise serum NO concentrations increased significantly both before and after weight loss treatment. After the weight reduction treatment, the time of exercise test increased significantly P<0.005, but there were no significant differences between the value of NO before and after weight loss. Conclusion: 3 – month regular physical activity and weight loss did not influence exercise-induced nitric oxide production.

ICID 890163

DOI 10.5604/20831862.890163
 
FULL TEXT 185 KB


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