Jee Haemi
Department of Physical Therapy, Namseoul University, Cheonan-si, Korea.
Iran J Public Health. 2020 Oct;49(10):1878-1884. doi: 10.18502/ijph.v49i10.4690.
Increased exercise repetitions and intensities need to be compared between dominant and non-dominant sides to prevent asymmetrically conducted movements for possible dyskinesia.
A total of 20 participants were enrolled from Inha University, Incheon, Korea in 2019. They were assessed for comparisons of asymmetrical motion between the dominant and non-dominant arms during the abduction and adduction lateral raises during more than fifteen repetitions and low and high exercise intensity by giving different weight loads based on 1-RM.
Repetition led to significant reductions in range of motion for both dominant and non-dominant sides. In addition, increased repetitions led to significant greater reductions in range of motion especially toward the last phases of repetitions. Moreover, the dominant side showed significantly increased accelerations with increased intensities.
Increased repetitions and exercise intensity led to reduced range of motion and increased accelerations especially for the dominant sides. Dispersing kinematics should be considered to minimize possible dyskinesia between the symmetric sides when performing repetitive and loading physical activity.
需要比较优势侧和非优势侧增加的运动重复次数和强度，以防止因不对称运动导致可能的运动障碍。
2019年，从韩国仁川的仁荷大学招募了20名参与者。通过基于1-RM给予不同重量负荷，对他们在超过15次重复以及低、高运动强度的外展和内收侧平举过程中优势臂和非优势臂之间的不对称运动进行比较评估。
重复次数导致优势侧和非优势侧的运动范围显著减小。此外，重复次数增加导致运动范围显著减小，尤其是在重复的最后阶段。而且，优势侧的加速度随着强度增加而显著增加。
重复次数和运动强度增加导致运动范围减小以及加速度增加，尤其是优势侧。在进行重复性和负重体力活动时，应考虑分散运动学特征，以尽量减少对称侧之间可能出现的运动障碍。
