Abstract
Aim: Os Good Schlatter Disease (OGS) is a common condition for sportspeople during the growth period. The etiology is still unclear. Its definition is traction apophysis. The OGS knees are thought to have stronger muscle power. The aim of this study is to evaluate muscle strength in OGS knees.Materials and methods: We examined 96 athletes who applied to our clinic. We evaluated the muscular strength by separating the knees in two groups as the knees with OGS and without OGS. Knee muscle strength was measured in 60 and 180 degrees/second with isokinetic dynamometer CYBEX NORM (CSMI Humac Norm, ABD). Peak torque (PT), peak torque/body weight (PT/BW) and agonist/antagonist (flexor/extensor, AG/AN) values were collected. Independent samples t-test was used for statistical evaluation. Results: At 60 degrees, we found a significant difference between PTE, PTF, PT / BW E and PT / BW F (p= 0.02, p= 0.002). PTE, PDF, PT/ BWF were statistically significant also at 180 degrees (p=0,00 ). Conclusion: Muscle strengths of the non-OGS group were statistically stronger than those of OGS group. In order to demonstrate better performance of the athletes with OGS, training plans should be conducted to increase their muscle strength.
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