Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, State University of Londrina, Londrina, Brazil.
J Strength Cond Res. 2023 Sep 1;37(9):1746-1753. doi: 10.1519/JSC.0000000000004460. Epub 2023 Apr 3.
Kassiano, W, Costa, B, Kunevaliki, G, Soares, D, Zacarias, G, Manske, I, Takaki, Y, Ruggiero, MF, Stavinski, N, Francsuel, J, Tricoli, I, Carneiro, MAS, and Cyrino, ES. Greater gastrocnemius muscle hypertrophy after partial range of motion training performed at long muscle lengths. J Strength Cond Res 37(9): 1746-1753, 2023-Whether there is an optimal range of motion (ROM) to induce muscle hypertrophy remains elusive, especially for gastrocnemius. This study aimed to compare the changes in gastrocnemius muscle thickness between calf raise exercise performed with full ROM (FULL ROM ), partial ROM performed in the initial (INITIAL ROM ), and final (FINAL ROM ) portions of the ROM. Forty-two young women performed a calf training program for 8 weeks, 3 days·week -1 , with differences in the calf raise ROM configuration. The calf raise exercise was performed in a pin-loaded, horizontal, leg-press machine, in 3 sets of 15-20 repetition maximum. The subjects were randomly assigned to 1 of the 3 groups: FULL ROM (ankle: -25° to +25°), INITIAL ROM (ankle: -25° to 0°), and FINAL ROM (ankle: 0° to +25°), where 0° was defined as an angle of 90° of the foot with the tibia. The muscle thickness measurements of medial and lateral gastrocnemius were taken by means of B-mode ultrasound. INITIAL ROM elicited greater medial gastrocnemius increases than FULL ROM and FINAL ROM (INITIAL ROM = +15.2% vs. FULL ROM = +6.7% and FINAL ROM = +3.4%; p ≤ 0.009). Furthermore, INITIAL ROM elicited greater lateral gastrocnemius increases than FINAL ROM (INITIAL ROM = +14.9% vs. FINAL ROM = +6.2%; p < 0.024) but did not significantly differ from FULL ROM (FULL ROM = +7.3%; p = 0.060). The current results suggest that calf training performed at longer muscle lengths may optimize gastrocnemius muscle hypertrophy in young women. Therefore, when prescribing hypertrophy-oriented training, the inclusion of the calf raise exercise performed with partial ROM in the initial portion of the excursion should be considered.
卡西亚诺、W、科斯塔、B、库内瓦利基、G、索雷斯、D、扎卡里亚斯、G、曼斯克、I、高木、Y、鲁格里奥、MF、斯塔文斯基、N、弗朗斯塞尔、J、特里科利、I、卡内罗、MAS 和西里诺、ES。在长肌肉长度下进行部分运动范围训练后，比目鱼肌的肥大程度更大。J 力量与调理研究 37(9):1746-1753,2023- 对于比目鱼肌来说，是否存在最佳运动范围 (ROM) 以诱导肌肉肥大仍然难以捉摸。本研究旨在比较在全 ROM（FULL ROM）、初始 ROM（INITIAL ROM）和终末 ROM（FINAL ROM）部分进行小腿抬高运动时比目鱼肌厚度的变化。42 名年轻女性进行了为期 8 周、每周 3 天的小腿训练计划，小腿抬高 ROM 配置不同。小腿抬高运动在带有引脚的水平腿部按压机上进行，每组 15-20 次重复最大运动。受试者被随机分配到 3 个组中的 1 个：FULL ROM（脚踝：-25°至+25°）、INITIAL ROM（脚踝：-25°至 0°）和 FINAL ROM（脚踝：0°至+25°），其中 0°定义为脚与胫骨的角度为 90°。通过 B 型超声测量内侧和外侧比目鱼肌的肌肉厚度。与 FULL ROM 和 FINAL ROM 相比，INITIAL ROM 引起的内侧比目鱼肌增加更大（INITIAL ROM = +15.2%比 FULL ROM = +6.7%和 FINAL ROM = +3.4%；p≤0.009）。此外，与 FINAL ROM 相比，INITIAL ROM 引起的外侧比目鱼肌增加更大（INITIAL ROM = +14.9%比 FINAL ROM = +6.2%；p<0.024），但与 FULL ROM 无显著差异（FULL ROM = +7.3%；p=0.060）。目前的结果表明，在更长的肌肉长度下进行小腿训练可能会使年轻女性的比目鱼肌肥大最大化。因此，在开处肥大为导向的训练时，应考虑将初始部分运动范围内的小腿抬高运动纳入其中。
