EFFECTS OF ACTIVE AND PASSIVE WARM-UPS ON RANGE OF MOTION, STRENGTH, AND MUSCLE PASSIVE PROPERTIES IN ANKLE PLANTARFLEXOR MUSCLES
EFFECTS OF ACTIVE AND PASSIVE WARM-UPS ON RANGE OF MOTION, STRENGTH, AND MUSCLE PASSIVE PROPERTIES IN ANKLE PLANTARFLEXOR MUSCLES
复制标题
DOI：
10.1519/jsc.0000000000002642
复制
发表时间：
2021-01-01
影响因子：
3.2
通讯作者：
Miyakawa, Shumpei
中科院分区：
文献类型：
--
作者：
Takeuchi, Kosuke;Takemura, Masahiro;Miyakawa, Shumpei
本研究旨在探讨主动与被动热身对小腿肌肉柔韧性与力量的影响。14名健康男性（年龄：23.1 +/- 2.6岁，身高：172.7 +/- 5.6 cm，体重：64.5 +/- 7.0 kg）分别以随机顺序进行3种类型的热身10 min：通过骑自行车测力计进行的主动热身、进行重复等长收缩的主动热身和在热水浴中进行的被动热身。为了评估柔韧性，测量踝关节背屈的活动范围（ROM）、踝关节跖屈的被动扭矩和肌腱连接（MTJ）位移，然后计算肌腱单位（MTU）刚度。在柔韧性评估之后，测量最大自主等长收缩期间的峰值扭矩以评估等长力量。这些数据在每次热身之前和之后进行比较。结果，所有3种类型的热身都增加了ROM（p < 0.05）和末端ROM的被动扭矩（p < 0.01），但MTU刚度或MTJ位移没有显著变化。通过踏自行车测力计的主动热身增加了等长收缩期间的峰值扭矩（p < 0.05），而其他热身没有显示出显著的变化。总之，积极的热身与有氧运动增加了小腿肌肉的灵活性和力量。
The purpose of this study was to examine the effects of active and passive warm-ups on flexibility and strength of calf muscles. Fourteen healthy males (age: 23.1 +/- 2.6 years, height: 172.7 +/- 5.6 cm, and body mass: 64.5 +/- 7.0 kg) performed 3 types of warm-ups respectively for 10 minutes in a random order: an active warm-up by pedaling a cycling ergometer, an active warm-up doing repeated isometric contractions, and a passive warm-up in a hot water bath. To assess flexibility, range of motion (ROM) of ankle dorsiflexion, passive torque of ankle plantarflexion, and muscle tendon junction (MTJ) displacement were measured and then muscle tendon unit (MTU) stiffness was calculated. After the flexibility assessment, peak torque during maximum voluntary isometric contraction was measured to assess the isometric strength. These data were compared before and after each warm-up. As a result, all 3 types of warm-ups increased ROM (p < 0.05) and passive torque at terminal ROM (p < 0.01), but there were no significant changes in MTU stiffness or MTJ displacement. The active warm-up by pedaling a cycling ergometer increased peak torque during isometric contraction (p < 0.05), whereas the other warm-ups did not show significant alterations. In conclusion, the active warm-up with aerobic exercise increased flexibility and strength of the calf muscles.