Isotonic Isometric home workout. #getyouractiveon (at home) ⠀ An isotonic muscle contraction is where the muscle engages and the length of the muscle changes (through movement). ⠀ An isometric contraction is where the muscle engages and the length of the muscle remains the same. ⠀ Both are beneficial to include in a workout. In this workout we are first using an isotonic exercise targeting a specific muscle group then - using the same muscles - immediately taking an isometric hold. This is an ef

首の筋肉が一瞬でゆるんで動かしやすくなる『アイソメトリック筋肉収縮』