Martins Eduardo C, Steffen Lucas B, Gomes Diogo, Herzog Walter, Haupenthal Alessandro, de Brito Fontana Heiliane
Biomechanics Laboratory, School of Sports, Federal University of Santa Catarina, Florianópolis 88037-000, SC, Brazil.
Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada.
J Funct Morphol Kinesiol. 2022 Aug 19;7(3):60. doi: 10.3390/jfmk7030060.
Looped elastic bands around the thigh are commonly used during squats and result in increased hip activation. Due to the closed kinetic chain nature of the squat exercise, one may expect that placing the elastic band on distal segments, close to the floor contact, may not result in the same increase in hip muscle activation as that achieved with a looped band around the thigh. We analyzed the effects of band position (thigh, lower leg, and forefoot) and band stiffness on the myoelectric activity of the tensor fascia latae, gluteus medius, gluteus maximus, biceps femoris, vastus medialis, and vastus lateralis during squats in 35 healthy subjects (18 men and 17 women). The greatest myoelectric activity of hip muscles was observed when the stiffest band was positioned around the forefeet with an increase in 24% for the tensor fascia latae, 83% for the gluteus medius, and 68% for the gluteus maximus compared to free (without resistance band) squatting. Contrary to previous thinking, the use of elastic bands around the forefeet during squats can elicit increased myoelectric activity of hip muscles, with a magnitude often greater than when the band is placed around the thigh segments.
深蹲时,环绕大腿的环形弹力带常用,且会增加髋关节的激活程度。由于深蹲练习的闭链运动特性,有人可能会认为,将弹力带置于靠近地面接触的远端节段,可能不会像环绕大腿的环形弹力带那样使髋部肌肉激活程度增加。我们分析了35名健康受试者(18名男性和17名女性)在深蹲时,弹力带位置(大腿、小腿和前脚掌)及弹力带刚度对阔筋膜张肌、臀中肌、臀大肌、股二头肌、股内侧肌和股外侧肌肌电活动的影响。当最硬的弹力带置于前脚掌时,观察到髋部肌肉的肌电活动最大,与无弹力带(自由)深蹲相比,阔筋膜张肌增加了24%,臀中肌增加了83%,臀大肌增加了68%。与之前的想法相反,深蹲时在前脚掌使用弹力带可引起髋部肌肉肌电活动增加,其幅度通常大于弹力带置于大腿节段时。