Does the amount of endurance exercise in combination with weight training and a very-low-energy diet affect resting metabolic rate and body composition?
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.
Whatley
J E
JE
Center for the Study of Nutrition and Metabolism, New England Deaconess Hospital, Boston.
Gillespie
W J
WJ
Honig
J
J
Walsh
M J
MJ
Blackburn
A L
AL
Blackburn
G L
GL
D000273:Adipose Tissue; D000293:Adolescent; D000328:Adult; D001481:Basal Metabolism; D001823:Body Composition; D002149:Energy Intake; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010807:Physical Endurance; D012044:Regression Analysis; D014891:Weight Lifting; D015431:Weight Loss