Push ups are more tiring than sit ups mainly due to the number of muscle groups involved, the difficulty of the movements, and energy consumption. Push ups require the coordination of the chest, shoulders, arms, and core muscles to exert force, while sit ups mainly target the abdominal muscles and have a relatively simple movement pattern.
Push ups belong to multi joint composite movements, which require multiple muscle groups in the upper limbs and trunk to contract simultaneously to maintain stability, especially the pectoralis major, anterior deltoid, and triceps muscles, which need to continuously resist gravity to complete the push up movement. This systemic demand for strength can lead to a significant increase in cardiovascular load, a more easily disrupted breathing rhythm, and a faster accumulation of muscle fatigue. During the movement, the body is in a suspended state, and the core muscles must be tightened throughout to maintain the neutral position of the spine, further increasing energy consumption.
Sit ups belong to isolated single joint training, mainly relying on the centripetal contraction of the rectus abdominis muscle to complete trunk flexion, with less involvement of the hip flexors. Due to the constant contact of the back with the ground, the core stability requirement is low, the movement trajectory is fixed and the amplitude is limited, resulting in weak stimulation of the cardiovascular system. Although repeating may cause a burning sensation in the abdominal muscles, the overall energy consumption is much lower than push ups, and the recovery interval is also shorter.
It is recommended to arrange training reasonably according to fitness goals. If you want to improve your overall physical fitness, you can increase the frequency of push up training. In the initial stage, you can use kneeling push ups to reduce difficulty; If you focus on abdominal shaping, you can choose sit ups or abdominal rolls. Note that both movements should maintain a standard posture to avoid compensatory force causing sports injuries. After training, supplement protein in a timely manner to help muscle repair.
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