Manthou, E., Gill, J.M.R., Wright, A., and Malkova, D. (2010) Behavioural compensatory adjustments to exercise training in overweight women. Medicine and Science in Sports and Exercise, 42 (6). pp. 1121-1128. ISSN 0195-9131 (doi:10.1249/MSS.0b013e3181c524b7)
Purpose: To examine extent to which changes in non-exercise physical activity contribute to individual differences in body fat loss induced by exercise programs. Methods: Thirty four overweight/obese sedentary women (age: 31.7 +/- 8.1 years, BMI: 29.3 +/- 4.3 kg m-2) exercised for 8 weeks. Body composition, total energy expenditure (TEE), exercise EE (ExEE), activity EE (AEE) calculated as energy expenditure of all active activities minus ExEE, sedentary EE (SEDEE), sleeping EE (SEE), and energy intake were determined before and during the last week of the exercise intervention. Results: Over the 8-week exercise program net ExEE was 30.2 +/- 12.6 MJ and based on this, body fat loss was predicted to be 0.8 +/- 0.2 kg. For the group as a whole, change in body fat (-0.0 +/- 0.2 kg) was not significant but individual body fat changes ranged from -3.2 kg to +2.6 kg. Eleven participants achieved equal or more than the predicted body fat loss and were classified as 'Responders' and 23 subjects achieved less than the predicted fat loss and were classified as 'Non-responders'. In the group as a whole, daily TEE was increased by 0.62 +/- 0.30 MJ (p<0.05) and the change tended to be different between groups (Responders, +1.44 +/- 0.49 MJ; Non-responders, +0.29 +/- 0.36 MJ, p=0.08). Changes in daily AEE of Responders and Non-responders differed significantly between groups (Responders, +0.79 +/- 0.50 MJ; Non-responders, -0.62 +/- 0.39 MJ, p<0.05). There were no differences between Responders and Non-responders for changes in SEDEE and SEE or energy intake. Conclusion: Overweight and obese women who during exercise intervention achieve lower than predicted fat loss are compensating by being less active outside exercise sessions.
|Glasgow Author(s):||Malkova, Dr Dalia and Gill, Dr Jason and Manthou, Ms Eirini|
|Authors:||Manthou, E., Gill, J.M.R., Wright, A., and Malkova, D.|
|Subjects:||R Medicine > R Medicine (General)|
|College/School:||College of Medical Veterinary and Life Sciences > Institute of Cardiovascular and Medical Sciences|
College of Medical Veterinary and Life Sciences > School of Medicine > Clinical Specialities
|Journal Name:||Medicine and Science in Sports and Exercise|