During the upward motion in the squat exercise, at the hip joint the muscles controlling the motion are contracting concentrically the gluteus maximus is contracting eccentrically the motive force is provided by the hip flexors the motion is primarily in the frontal plane about the anteroposterior axis the resistive force is provided by the hip flexors
Question
During the upward motion in the squat exercise, at the hip joint the muscles controlling the motion are contracting concentrically the gluteus maximus is contracting eccentrically the motive force is provided by the hip flexors the motion is primarily in the frontal plane about the anteroposterior axis the resistive force is provided by the hip flexors
Solution
During the upward motion in the squat exercise, the following occurs:
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At the hip joint, the muscles controlling the motion are contracting concentrically. This means that the muscles are shortening while generating force. This is the primary way that muscles work to lift the weight during a squat.
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The gluteus maximus is not contracting eccentrically. Instead, it is also contracting concentrically. Eccentric contraction is when the muscle lengthens while under tension, which is not the case during the upward phase of a squat.
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The motive force is not provided by the hip flexors. Instead, the primary movers are the gluteus maximus and the quadriceps. The hip flexors are more involved in the downward phase of the squat.
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The motion is not primarily in the frontal plane about the anteroposterior axis. The primary motion during a squat is in the sagittal plane about a mediolateral axis. This means the movement is forward and backward, not side to side.
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The resistive force is not provided by the hip flexors. The resistive force during the upward phase of a squat is provided by gravity acting on the body and any additional weight being lifted.
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