The effect of ankle and knee immobilization on postural control during standing

作者：Jeon Hye Seon; Hwang Sujin^*; Woo Young Keun

来源：Knee, 2013, 20(6): 600-604.

DOI：10.1016/j.knee.2012.09.001

• Ankle
• Immobilization
• Knee
• Postural stability

Background: This study examined the effects of ankle and knee joint immobilization on postural control in healthy young adults while standing.
Methods: The 24 participants included in this study participated in postural standing tests under four different constraint conditions: free joints, ankle immobilization only, knee immobilization only, and ankle-knee immobilization. Tests were performed using a commercial balancing equipment (Biodex (TM), Inc., NY, USA) and software.
Results: The overall limit-of-stability score and duration to completion of task were obtained at 75% limit-of-stability (moderate level of difficulty). The overall limit-of-stability score of free joints (34.5 +/- 9.1) were significantly different with the ankle immobilization only (26.0 +/- 11.6), and ankle-knee immobilization (26.4 +/- 7.4) conditions. The test duration increased in the following order: free joints (57.8 +/- 10.9), knee immobilization only (62.5 +/- 14.0), ankle immobilization only (68.0 +/- 14.9), and ankle-knee immobilization (69.4 +/- 17.7). The duration of the free joint condition greatly decreased than ankle immobilization only and ankle-knee immobilization conditions.
Conclusions: The ankle and knee joints have sufficient range of motion to prevent falls related to decrease postural stability due to insufficient range of motion or to improve postural stability.

• 出版日期2013-12