使用電磁感測系統分析蹲舉式和彎腰式抬舉方式
范惠芝
慈濟技術學院物理治療系
提要
在人工物料搬運作業中，不適當的抬舉方式（lifting technique）最容易導致身體傷
害。抬舉方式是指當一個人將物體搬抬離地面時所採用的姿勢。二種常被採用的抬舉方
式：蹲舉法（squat lift）和彎腰法（stoop lift）。本研究的主要目的在探討電磁感測系統
運用在分析抬舉姿勢採用蹲舉法時，比較偏好蹲舉法者和偏好彎腰法者的抬舉姿勢是否
有差異，和採用彎腰法時，比較偏好彎腰法者和偏好蹲舉法者的抬舉姿勢是否有差異。
研究結果顯示在採用蹲舉法，偏好蹲舉法者和偏好彎腰法者的腰部關節角度有統計上顯
著差異（13.35°，p < 0.05），但是在右髖關節、右膝關節和右踝關節角度沒有統計上顯著
差異（p>0.05）。在採用彎腰法，偏好彎腰法者和偏好蹲舉法者在腰部、右髖關節、右膝
關節和右踝關節角度都沒有統計上顯著差異（p>0.05）。本研究結果顯示偏好蹲舉者腰部
彎曲角度大於偏好彎腰法者的腰部彎曲角度，可能和背痛機轉有關，需要進一步研究證
實。
關鍵字：蹲舉式、抬舉式、電磁感測系統動作分析
Using Electromagnetic System to
Analyze Squat and Stoop Lifting Posture
Hui-Ji Fan
Tzu-Chi College Technology, Department of Physical Therapy
AbstractManual handling of materials frequently occurs in performing the duties of many
occupations. Inappropriate handling techniques, particularly lifting posture, can lead
to serious injury. The two main techniques for lifting an object from at floor level are
squat (or leg) and stoop (or back). The purpose of this study is to examine the
fundamental dynamics of lifting posture, we compared the lifting postures of subjects
who preferred squat lift with those of subjects who did not prefer squat lift while
performing squat lifts, and to compare the lifting postures of subjects who preferred
stoop lifting with those of subjects who did not prefer stoop lift while performing
stoop lifts. During the squat lift, there is statistically significant difference in lumbar
flexion (13.35°, p < 0.05), but no differences in degrees of right hip flexion, degrees of
right knee flexion, or degrees of right ankle dorsiflexion (p > 0.05). During the stoop
lift, no significant differences were found among all variables comparing the two
groups (p > 0.05). This study has demonstrated that measurements obtained from such
an electromagnetic motion tracking system can provide useful and important
information on the motion of the body segments during lifting. The results of this
study found that the subjects perform more lumbar flexion in preferred squat lift than
in preferred stoop lift. This can be related to back pain mechanism. Further study is
needed.
Keywords：squat lift, stoop lift, motion analysis.