Evaluation of Muscle Performance in Patients with Vitamin D Deficiency: Preliminary Study

Aim: Vitamin D de ciency is very common in general population and has potentially harmful effect on musculoskeletal system. We aimed\udto show the effect of vitamin D de ciency on the muscle performance by using isokinetic test.\udMeterial and Methods: This study includes 12 women with vitamin D de ciency for patient group and 12 healthy women for control group. We\udcompared knee muscles performance of these two groups by using isokinetic test.\udResults: The mean age was 40.71 (26-57) years in patients and 41.43 (28-58) years in healthy group. There was no statistical difference\udbetween two groups at knee exion and extension pick-torque values in 60°/s velocity and fatigue index in 180°/s velocity (respectively,\udp1=0.86, p2=0.12, p3=0.42).\udConclusion: Vitamin D de ciency has no effect on muscle performance. Further invastigations that evaluating larger populations are needed.\ud(Turkish Journal of Osteoporosis 2013;19: 17-9