Barbosa Alexandre C, Martins Fábio M, Silva Angélica F, Coelho Ana C, Intelangelo Leonardo, Vieira Edgar R
1Department of Physical Therapy, Federal University of Juiz de Fora, Governador Valadares, Brazil;2Department of Physical Therapy, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil;3Department of Physical Therapy, University Institute of Gran Rosario, Rosario, Argentina; and4Department of Physical Therapy, Florida International University, Miami, Florida.
J Strength Cond Res. 2017 Nov;31(11):3018-3023. doi: 10.1519/JSC.0000000000001877.
Barbosa, AC, Martins, FM, Silva, AF, Coelho, AC, Intelangelo, L, and Vieira, ER. Activity of lower limb muscles during squat with and without abdominal drawing-in and Pilates breathing. J Strength Cond Res 31(11): 3018-3023, 2017-The purpose of this study was to assess the effects of abdominal drawing-in and Pilates breathing on the activity of lower limb muscles during squats. Adults (n = 13, 22 ± 3 years old) with some Pilates experience performed three 60° squats under each of the following conditions in a random order: (I) normal breathing, (II) drawing-in maneuver with normal breathing, and (III) drawing-in maneuver with Pilates breathing. Peak-normalized surface electromyography of the rectus femoris, biceps femoris, gastrocnemius medialis, and tibialis anterior during the knee flexion and extension phases of squat exercises was analyzed. There were significant differences among the conditions during the knee flexion phase for the rectus femoris (p = 0.001), biceps femoris (p = 0.038), and tibialis anterior (p = 0.001), with increasing activation from conditions I to III. For the gastrocnemius medialis, there were significant differences among the conditions during the knee extension phase (p = 0.023), with increased activity under condition I. The rectus and biceps femoris activity was higher during the extension vs. flexion phase under conditions I and II. The tibialis anterior activity was higher during the flexion compared with the extension phase under all conditions, and the medial gastrocnemius activity was higher during the extension phase under condition I. Doing squats with abdominal drawing-in and Pilates breathing resulted in increased rectus, biceps femoris, and tibialis anterior activity during the flexion phase, increasing movement stability during squat exercises.
巴尔博萨，AC；马丁斯，FM；席尔瓦，AF；科埃略，AC；因特拉安杰洛，L；维埃拉，ER。深蹲时有无收腹和普拉提呼吸情况下下肢肌肉的活动。《力量与体能研究杂志》31(11): 3018 - 3023，2017年——本研究的目的是评估收腹和普拉提呼吸对深蹲时下肢肌肉活动的影响。有一定普拉提经验的成年人（n = 13，22±3岁）按照以下每种条件以随机顺序进行三次60°深蹲：(I)正常呼吸，(II)正常呼吸时的收腹动作，以及(III)普拉提呼吸时的收腹动作。分析了深蹲练习的膝关节屈伸阶段股直肌、股二头肌、腓肠肌内侧头和胫骨前肌的峰值标准化表面肌电图。在膝关节屈曲阶段，股直肌（p = 0.001）、股二头肌（p = 0.038）和胫骨前肌（p = 0.001）在各条件之间存在显著差异，从条件I到条件III激活增加。对于腓肠肌内侧头，在膝关节伸展阶段各条件之间存在显著差异（p = 0.023），条件I下活动增加。在条件I和II下，股直肌和股二头肌在伸展阶段的活动高于屈曲阶段。在所有条件下，胫骨前肌在屈曲阶段的活动高于伸展阶段，在条件I下，腓肠肌内侧头在伸展阶段的活动更高。进行收腹和普拉提呼吸的深蹲会导致在屈曲阶段股直肌、股二头肌和胫骨前肌的活动增加，从而增加深蹲练习时的运动稳定性。
