According to the Frank-Starling law of the heart, the shorter the initial length of the cardiac muscle fibres prior to contraction, the more forceful will be the subsequent contraction because the fibres are already partially contracted.

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The Frank-Starling law of the heart states that the longer the initial length of the cardiac muscle fibres prior to contraction, the more forceful will be the subsequent contraction. This is because the sarcomeres in the muscle fibres have greater overlap, which allows for a stronger interaction between actin and myosin filaments during contraction. Therefore, a longer initial length leads to a stronger contraction, not a shorter initial length.

According to the Frank-Starling Law of the Heart, the Shorter