National Academy of Sports Medicine (NASM) Corrective Exercise Specialist (CES) Practice Exam 2025 - Free NASM CES Practice Questions and Study Guide

When the body's center of gravity is challenged during a squat, forward trunk flexion is a compensatory mechanism that often occurs. This adjustment allows an individual to maintain balance and stability by shifting the center of mass forward. Forward trunk flexion helps to counteract the weight being distributed, as it allows the body to maintain an upright position while preventing potential tipping or falling backward. This is particularly important in exercises like squats, where the distribution of weight can easily shift the center of gravity, necessitating adjustments in posture to uphold proper biomechanics and safety.

Other compensatory strategies could include knee extension or hip flexion, but these tend not to address the fundamental balance concern as effectively as forward trunk flexion in the context of maintaining an optimal center of gravity during a squat. Additionally, trunk rotation typically occurs in response to lateral imbalances rather than adjustments for forward stability challenges.