著者
真鍋 芳明 横澤 俊治 尾縣 貢
出版者
The Japanese Society of Physical Fitness and Sports Medicine
雑誌
体力科学 (ISSN:0039906X)
巻号頁・発行日
vol.53, no.3, pp.321-336, 2004-06-01 (Released:2010-09-30)
参考文献数
36
被引用文献数
6 2

The purpose of this study was to compare hip and knee joint extension torque and the activity of eight muscles around the hip and knee joints during three squat exercises with different movements.Ten male athletes performed three different squats (Normal squat : NS, Knee push squat : KPS, Hip drive squat : HDS) . KPS is the type of squat which emphasizes knee joint movement without moving the hip joint position back and forth. On the other hand, HDS is the type of squat which emphasizes hip joint movement, while keeping the knee joint position fixed. Kinematic and kinetic variables such as angle, angular velocity, net torque and power of the joints of the lower extremity were calculated during the descending and ascending phase of each squat. At the same time, surface electrodes were placed on eight muscles of the lower extremity, and %iEMG was also calculated during the same phases.During the descending phase, Elector spinae muscle activity and hip joint extension torque was significantly greater for HDS than KPS. Rectus femoris and Vastus lateralis muscle activity was significantly greater for KPS than HDS. In addition, KPS showed significantly greater knee joint extension torque than HDS and NS. At the ascending phase, Elector spinae, Glueus maximus and Biceps femoris muscle activity, and hip joint extension torque was significantly greater for HDS than KPS and NS. Rectus femoris muscle activity and knee joint extension torque was significantly greater for KPS than HDS and NS.These results suggest that HDS is effective for selectively training the hip extensor, and KPS is effective for training the Rectus femoris muscle.

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外部データベース (DOI)

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「...股関節と膝関節の同時伸展時に,大腿二頭筋と大腿広筋群が共収縮することで,大腿二頭筋の張力を股関節伸展へと貢献させているとしている.」 https://t.co/6s7t5jNHCw
「また,主働筋と拮抗筋の共収縮が働かないようなトレーニングは,実際の運動につながりにくく,関節が不安定な状態にあり,靱 帯などの組織の負担が増大するため,傷害の危険性もあるとされ ている」https://t.co/6s7t5jNHCw
・スタンスは肩幅 ・つま先は正面 ・重量はマックスの60% で実験を行った際の筋肉の使い方に差が出たよ! という実験がこちらです。 https://t.co/w5anX3wxBW

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