American Journal of Clinical Nutrition, Vol 59, 1088-1092, Copyright © 1994 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Does the amount of endurance exercise in combination with weight training and a very-low-energy diet affect resting metabolic rate and body composition?

JE Whatley, WJ Gillespie, J Honig, MJ Walsh, AL Blackburn and GL Blackburn
Center for the Study of Nutrition and Metabolism, New England Deaconess Hospital, Boston.

Effects of large (LA; 400 min/wk) and moderate (MA; 200 min/wk) amounts of endurance exercise in combination with weight training (3 d/wk) were compared with the effects of no exercise (C) in 23 obese females after a 12-wk, 3360-kJ/d very-low-energy diet (VLED). The LA group lost 6.5 kg more weight, mainly as fat (6.4 kg), than the C group (P < 0.05). No measurable differences were found among groups for decreases in resting metabolic rate (-729 to -1233 kJ/d; NS) or fat-free mass (-2.9 to -3.9 kg; NS). No improvements in aerobic capacity were achieved with the addition of exercise to a VLED (-0.079 to -0.037 L/min; NS). Strength indexes were improved (+16 to +5 kg; P < 0.05) or maintained with exercise (-3 kg; NS) whereas a loss (-9.3 kg; P < 0.05) or maintenance (+4.5 kg; NS) was found for VLED alone. Large amounts of endurance exercise in combination with weight training added to a VLED appear to improve weight and fat loss compared with a VLED alone.

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				B. A. Dolezal and J. A. Potteiger Concurrent resistance and endurance training influence basal metabolic rate in nondieting individuals J Appl Physiol, August 1, 1998; 85(2): 695 - 700. [Abstract] [Full Text] [PDF]