Lim Edwin Choon Wyn, Tan Mann Hong
Singapore General Hospital, Physiotherapy, Blk 1 Level 1, Outram Road, Singapore 169608, Singapore.
Foot Ankle Int. 2009 Oct;30(10):1011-7. doi: 10.3113/FAI.2009.1011.
Impairment in proprioception has been suggested to be one of the causes of FAI. This study aimed to establish intra-session reliability of the Biodex System 2 in assessing joint position sense (JPS) and kinesthesia (K)~in addition to determining if there was any side to side difference in JPS and kinesthesia in people with unilateral functional ankle instability.
Both JPS and K were determined by means of the Biodex Systems 2. During evaluation of JPS, participants' ability to actively reproduce ankle joint position was tested three times in each of the two predetermined positions. During evaluation of K, data collection began with the foot placed in a starting position of 0 degrees (neutral position).
A total of 25 participants (mean age 22.0 years, 95% confidence interval 19.9 to 24.1 years) were recruited into this study. No difference in JPS (p = 0.162 to 0.764) and K (p = 0.089 to 0.683) were found between the sprained and uninvolved ankle of subjects with unilateral functional ankle instability. There is moderate to good intra-session reliability in using the Biodex System 2 to assess JPS (ICC = 0.868 to 0.950, p < 0.01) and K (ICC = 0.825 to 0.893, p < 0.01).
This study suggests that there is perhaps no difference in JPS and K between both ankles in people with unilateral FAI. Proprioceptive deficits may not always be present in every case of FAI.
Proprioceptive training may not be beneficial in some patients with unilateral FAI.
本体感觉受损被认为是股骨髋臼撞击症（FAI）的病因之一。本研究旨在确定Biodex System 2在评估关节位置觉（JPS）和动觉（K）方面的组内可靠性，此外，还需确定单侧功能性踝关节不稳患者在JPS和动觉方面是否存在双侧差异。
JPS和K均通过Biodex Systems 2进行测定。在评估JPS时，参与者在两个预定位置上，分别对主动重现踝关节位置的能力进行三次测试。在评估K时，数据收集从足部置于0度起始位置（中立位）开始。
本研究共招募了25名参与者（平均年龄22.0岁，95%置信区间为19.9至24.1岁）。在单侧功能性踝关节不稳患者中，扭伤侧与未受伤侧踝关节在JPS（p = 0.162至0.764）和K（p = 0.089至0.683）方面均未发现差异。使用Biodex System 2评估JPS（组内相关系数ICC = 0.868至0.950，p < 0.01）和K（ICC = 0.825至0.893，p < 0.01）具有中等至良好的组内可靠性。
本研究表明，单侧FAI患者的双侧踝关节在JPS和K方面可能无差异。并非所有FAI病例都会出现本体感觉缺陷。
本体感觉训练可能对某些单侧FAI患者无益。
