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Title: THE EFFECTS OF CROSS-TRAINING ON ENERGY EXPENDITURE AND UTILIZATION OF OVERWEIGHT WOMEN

Author
item Keim, Nancy
item Horn, William
item Barbieri, Teresa
item VAN LOAN, MARTA

Submitted to: American College of Sports Medicine
Publication Type: Abstract Only
Publication Acceptance Date: 5/30/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The purpose of this study was to determine if energy expenditure (EE) or energy utilization (EU) changed in response to cross-training. Twelve overweight women participated in a diet and exercise study while living in a metabolic research unit. The controlled diet was mildly restricted in energy (8.03+/-1.05 MJ/d). Exercise included a daily 3 mile walk, aerobic workout 5 d/wk, and weight training 3 d/wk. At the beginning (T0) and after 8 wk of training (T8), EE and EU were studied by indirect calorimetry at rest, following ingestion of a 1 MJ "sports bar", during 30 min of cycling at 50%peak VO2, and for 1 hr post-exercise. Serial blood samples were obtained coincidentally and analyzed for glucose and insulin. As a result of intervention, body mass decreased by 5%, but fat-free mass decreased by only 1%. At T8, exercise EE increased 7% (p