Muscle strength and body composition in severe obesity

作者：Gadducci Alexandre Vieira^*; de Cleva Roberto; de Faria Santarem Gabriela Correia; Santos Silva Paulo Roberto; D'Andrea Greve Julia Maria; Santo Marco Aurelio

来源：Clinics, 2017, 72(5): 272-275.

DOI：10.6061/clinics/2017(05)03

• Obesity
• Body Composition
• Muscle Strength

OBJECTIVE: The aim of our study was to evaluate associations between maximum voluntary contraction torques of the lower limbs and body composition for subjects with severe obesity.
METHODS: Body composition was evaluated by bioelectrical impedance analysis, and maximum voluntary contraction torques of the lower limbs were measured using an isokinetic dynamometer. One hundred thirty-two patients were enrolled (100 females and 32 males). Eighty-seven patients had a body mass index between 40 and 49.9 kg/m(2) (the A group), and 45 patients had a body mass index between 50 and 59.9 kg/m(2) (the B group).
RESULTS: Absolute extension and flexion torques had weak associations with fat-free mass but a moderate association with absolute extension torque and fat-free mass of the lower limbs. There were no significant differences between the A and B groups with respect to absolute extension and flexion torques. For the A group, absolute extension and flexion torques were moderately associated with fat-free mass and with fat-free mass of the lower limbs. For the B group, there were only moderate associations between absolute extension and flexion torques with fat-free mass of the lower limbs.
CONCLUSIONS: Our findings demonstrate that both groups exhibited similar absolute torque values. There were weak to moderate associations between absolute extension and flexion torques and fat-free mass but a moderate association with fat-free mass of the lower limbs. Individuals with severe obesity should strive for greater absolute torques, fat-free mass and especially fat-free mass of the lower limbs to prevent functional limitations and physical incapacity.

• 出版日期2017-5