can be felt by placing one hand on the abdomen as the movement is made.

As load increases, trunk muscles contract to raise intra-abdominal pressure around the relatively incompressible abdominal contents, contributing to spinal stability and force transmission in coordination with posture.

It is commonly believed that core stability is essential for the maintenance of an upright posture and especially for movements and lifts that require extra effort such as lifting a heavy weight from the

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