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Good-morning : ウィキペディア英語版 | Good-morning
The good-morning sir is a weight-lifting exercise. The movement resembles bowing to greet someone "good morning". The erector spinae muscles of the lower back work isometrically to keep the spine in an extended position while the hamstrings and gluteus maximus work isotonically to perform hip extension. Other muscles are involved in stabilizing weight on the back and maintaining balance. The degree of knee bend used will change the focus. The straighter the knees, the more the hamstrings are stretched and stressed by the movement and this stretch involves them more as the hip extensors. Bent knees can shift the weight forward, which allows the pelvis to drift back further as the body hinges in hip flexion. ==Importance== The good-morning is an essential exercise in the Westside Barbell method and is often trained to near limit maxima. Developing strength in the lift aids in the recovery of a "bad" squat, reducing the risk of injury. Properly applied, it can also strengthen an individual's deadlift; for this reason, it is a key exercise in the conjugate method of training this lift. In Olympic weightlifting, the good-morning is used as the most efficient assistance exercise to train the second phase of the clean or snatch pull and bases of squat positions in snatch drops and clean squat positions. In this variation, the lifter will descend, reverse direction, and accelerate the ascent, rising up onto the toes at the conclusion of the lift. This mimics the rapid hip extension and subsequent toe-rise during the clean and jerk or snatch.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Good-morning」の詳細全文を読む
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