Lee Yubin, Lim Chaegil
Department of Health Science, Gachon University Graduate School, Incheon, 21936, South Korea.
Department of Physical Therapy, College of Health Science, Gachon University, 191, Hambakmo-ro, Yeonsu-gu, Incheon, 21936, South Korea.
Knee Surg Relat Res. 2023 Nov 27;35(1):25. doi: 10.1186/s43019-023-00199-x.
Our study aimed to identify age-related changes in knee proprioception to provide reference values for weight-bearing (WB) and non-weight-bearing (NWB) conditions and to identify factors (age, WB condition, dominance, and sex) that can affect knee proprioception.
A total of 84 healthy adult men and women were recruited. Active knee joint position sense (JPS) was measured using a digital inclinometer for knee proprioception. The participants performed the required movements actively, with verbal feedback from the examiner, slowly moving to the target angles (30° and 50°) and maintaining them for 5 s before returning to the starting position. Afterward, without assistance from the examiner, the participants actively moved back to the same angle, and the examiner confirmed the angles. This procedure was repeated twice for each target angle, and the average values were used as the data. The participants were barefoot, wearing shorts, and closed their eyes while the measurements were obtained. The measurements were first obtained on the dominant side under the NWB conditions. When a change in posture was needed during the measurement, the participants sat in a resting position for 2 min.
Except for age, all other factors (WB condition, dominance, sex) were not statistically significant. Age showed a significant difference in knee JPS, except for the non-dominant side at 30° and the dominant side at 50° in the NWB condition.
This study indicates that the WB condition, dominant side, and sex need not be considered when measuring and assessing knee JPS. Age shows a negative correlation with knee joint position sense, and the reference values presented in this study can be used as objective target values during the rehabilitation process.
我们的研究旨在确定膝关节本体感觉与年龄相关的变化，为负重（WB）和非负重（NWB）状态提供参考值，并确定可能影响膝关节本体感觉的因素（年龄、WB状态、优势侧和性别）。
共招募了84名健康成年男性和女性。使用数字倾角仪测量主动膝关节位置觉（JPS）以评估膝关节本体感觉。参与者在检查者的言语反馈下主动进行所需动作，缓慢移动到目标角度（30°和50°）并保持5秒，然后回到起始位置。之后，在没有检查者协助的情况下，参与者主动回到相同角度，检查者确认角度。每个目标角度重复此过程两次，取平均值作为数据。测量时参与者赤脚、穿短裤并闭眼。首先在NWB状态下在优势侧进行测量。测量过程中需要改变姿势时，参与者休息2分钟。
除年龄外，所有其他因素（WB状态、优势侧、性别）均无统计学意义。年龄在膝关节JPS方面存在显著差异，但在NWB状态下非优势侧30°和优势侧50°时除外。
本研究表明，在测量和评估膝关节JPS时无需考虑WB状态、优势侧和性别。年龄与膝关节位置觉呈负相关，本研究给出的参考值可在康复过程中用作客观目标值。
