TURKISH JOURNAL OF PHYSIOTHERAPY REHABILITATION-FIZYOTERAPI REHABILITASYON, vol.22, no.3, pp.249-254, 2011 (ESCI)
Purpose: The aim of this study was to determine differences in lower extremity coordination and motor control between overweight and normal individuals and to reveal the reasons in deficiency of balance and stability which was observed in obesity when the negative effect of gravity on balance was eliminated. Methods: Twenty subjects were divided into two groups according to their body mass index (BMI) (overweight: BMI 29.73 +/- 3.07 kg/m(2) and normal: 21.38 +/- 1.10 kg/m(2)) which was determined using bioelectrical impedance analysis. Multi-joint lower-limb tracking-trajectory test was performed to determine the motor control and coordination deficits. Ankle joint bimalleolar diamater and circumference were measured to determine whether presence of any morphological differences which could affect motor coordination outcomes in lower extremity. Results: There were no significant differences between two groups in concentric and eccentric motor coordination, ankle joint bimalleolar diamater and bimalleolar circumference (p> 0.05). Conclusion: The results of our study demonstrated that there was no difference in lower extremity motor coordination between overweight and normal individuals when the effect of body mass and gravity was eliminated. Outcomes of this study reinforce the theory that any sensory related problem is not the reason of postural instability in obese individuals. The deficiency may result from biomechanic influence of excess body mass.