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发帖数: 31659 | 1 procedure: Record the standing height by standing below the apparatus with both feet flat on the ground, and stretching up one arm and reaching as high as possible. The subject then places one foot back, rocking is allowed, before bringing the back foot back next to the other, and leaping vertically off both legs as high as possible (the technique is similar to the jump to start a basketball game). The arms may be used to assist in projecting the body upwards. Attempt to time the swing of the ar | l*******1
发帖数: 128 | |
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