Kim You-Sin, Kim Do-Yeon, Ha Min-Seong
Department of Leisure Sports, Jungwon University, Republic of Korea.
Department of Physical Education, Pusan National University, Republic of Korea.
J Phys Ther Sci. 2016 Jan;28(2):446-9. doi: 10.1589/jpts.28.446. Epub 2016 Feb 29.
[Purpose] The purpose of the present study was to determine the effects of changes in palmar width on the muscle activities of the shoulder and truncus muscles during push-up exercise. [Subjects] Twelve healthy adult males participated in this study as subjects. [Methods] Push-up exercises were performed with three different palmar width in narrow (50%), neutral (100%), and wide positions (150%). We measured the muscle activities of the deltoideus p. acromialis, pectoralis minor, pectoralis major, serratus anterior, biceps brachii, triceps brachii, latissimus dorsi, and infraspinatus. [Results] Pectoralis minor, triceps brachii, and infraspinatus muscle activities were greater during push-ups performed with the 50% palmar width compared with the other palmar widths. Pectoralis major muscle activity was greater during push-ups performed with the 50% and 100% palmar widths compared with the 150% palmar width. Serratus anterior muscle activity was greater during push-ups performed with the 150% palmar width compared with the other palmar widths. [Conclusion] These results are expected to serve as reference materials for push-up exercise applications in training programs for truncus muscle strengthening or rehabilitation programs for scapula patients.
[目的] 本研究旨在确定俯卧撑运动中手掌宽度变化对肩部和躯干肌肉活动的影响。[对象] 12名健康成年男性参与本研究作为对象。[方法] 进行俯卧撑运动时采用三种不同的手掌宽度，即窄位（50%）、中位（100%）和宽位（150%）。我们测量了肩峰三角肌、胸小肌、胸大肌、前锯肌、肱二头肌、肱三头肌、背阔肌和冈下肌的肌肉活动。[结果] 与其他手掌宽度相比，在50%手掌宽度的俯卧撑运动中，胸小肌、肱三头肌和冈下肌的肌肉活动更大。与150%手掌宽度相比，在50%和100%手掌宽度的俯卧撑运动中，胸大肌的肌肉活动更大。与其他手掌宽度相比，在150%手掌宽度的俯卧撑运动中，前锯肌的肌肉活动更大。[结论] 这些结果有望作为训练计划中加强躯干肌肉或肩胛骨患者康复计划中俯卧撑运动应用的参考资料。
