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Gazzetta Medica Italiana Archivio per le Scienze Mediche 2014 January-February;173(1-2):47-56

language: English

Effects of a whole-body strength training program on metabolic responses and body composition

Fabre J. B., Martin V., Borelli G., Fritsch N., Theurel J.

ESP-Consulting, Research Department Mimet, France;
Laboratory of Exercise Biology (EA 3533), Blaise Pascal University Clermont Université, Aubière, France


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Aim: This study aimed to evaluate the metabolic responses during a whole-body strength training (WBST) session and the effectiveness of a 8-weeks WBST program on metabolic adaptations and body composition.
Methods: Three experimental groups followed either a WBST program (N.=15), a walking program (WALK, N.=11), or control period (CONT, N.=12). The oxygen consumption (˙VO2), and the rate of lipid oxidation (LipOx) were evaluated during both incremental exercises (WBST and WALK) before and after both 8-weeks training programs (i.e., WBST and WALK). Additionally, body composition and anthropometric characteristics were evaluated before and after the experimental period, for each group.
Results: VO2 was similar during WBST performed at 80% of MVC (15.4±3.9 mL/min/kg), and during walking at 4.5 km/h (16.8±2.0 mL/min/kg). After WBST program, ˙VO2 during walking exercise at 4.5 km/h was significantly reduced (-7.2±10.4%; P<0.01). The reduction of body fat percentage was significantly (P<0.05) greater after WBST program (-4.94±4.65%) than after WALK program (-3.17±1.95%). In contrast body composition did not significantly change after CONT period.
Conclusion: This study demonstrated that a WBST session, performed at 80% of MVC, induced a significant aerobic solicitation and that a 8-week WBST program efficaciously influenced body composition, anthropometric characteristics, and reduced the energetic cost of walking. These findings suggest that WBST may be an interesting alternative to combined aerobic and strength training strategies in overweight management.

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