During the backward-lean test with arms overhead, which movement pattern is evaluated?

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The test with arms overhead in a backward lean is examining how well the body can extend across multiple segments at once. You’re asked to extend the spine through different regions (neck, thoracic, and lumbar) while also allowing hip extension and shoulder positioning as you reach back with the arms. This coordinated, multi-joint extension pattern reflects the integrity and mobility of the entire posterior chain and spine working together.

So, the best description of what’s being evaluated is multi-segmental extension. It’s not focusing on a single area like neck extension alone or the tendency to bend forward (spinal flexion), and while posterior chain tightness could influence how you perform this movement, the test specifically targets the ability to extend across multiple segments rather than just identifying tightness in the posterior chain.