Hong Kong Journal of Orthopaedic Surgery

Volume 5 Number 1, April 2001
Abstract

Effect of elastic bandages and ankle weights on knee proprioception in uninjured female dancers: a prospective study

Wong MWN,1 To WWK,2 Lam IYL3
1Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital;
2Department of Obstetrics and Gynecology, United Christian Hospital; and 3Pysiotherapy Unit, Academy of Performing Arts, Hong Kong.

We tested the hypothesis that the use of elastic knee bandages and ankle weights improve proprioception of the knee joint in uninjured female dancers. Twenty-six full-time college dance students without a history of knee injury were tested using a modified Thomas splint and pulley system. The pulley system enabled a fixed angle of knee flexion to be set. The participants were then asked to reproduce the set angle with and without being blindfolded. Each knee was assessed without modification, followed by the use of an elastic knee bandage, a standard 2-kg ankle weight, and bandage and weight together. The tests were repeated, using the absolute error in angle reproduction as a measure of proprioceptive ability. Compared with the free knee, elastic bandages, ankle weights, and elastic bandage together with weights improved knee proprioception. We found that proprioception by reproduction of a set angle using physical recall (ie blindfolded) is different from visual recall. In all test settings, the absolute error in angle reproduction was smaller by physical recall compared with visual recall, and the difference was statistically significant (p < 0.01). There was, however, no difference in the performance of dancers from different disciplines. (Hong Kong j. orthop. surg. 2001;5(1):52-57)

Key Words: Ankle joint; Bandages; Biomechanics; Female; Knee Joint; Proprioception

繃帶及加重狀態對女舞者膝本體感覺的影響

王韻娜,杜榮基,林玉玲

我們假設繃帶及加重狀態可改善無創傷女舞者的膝本體感覺,而蒙眼測試定角重現跟視覺類似量表測試不同。我們對26位女舞者以改良Thomas膝夾進行蒙眼及不蒙眼測試。這測試以定角重現的絕對誤差量度膝本體感覺的能力。結果顯示,繃帶、加重狀態、及繃帶跟加重狀態一起,均可改善膝本體感覺(p<0.01)。視覺類似量表測試定角重現的絕對誤差比蒙眼測試的大(p<0.01)。不同舞蹈訓練者的表現無明顯分別。


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