While many studies have explored able-bodied rowing biomechanics, only a few focus on the effect of movement constraints. This study analyzes 3D kinematics and joint power during rowing under different movement constraints. Also differences between participants with and without physical impairments are explored. Four setups are used to simulate gradually increasing movement constraints: Setup 1 - standard rowing conditions (mirrors able-bodied rowing and the PR3 para-rowing class); Setup 2 - rowing with a fixed seat, with legs still on the foot-stretcher (mirrors the PR2 para-rowing class for athletes with some residual leg functions); Setup 3 - fixed seat with legs not on the foot-stretcher (PR2 para-rowing class athletes without leg functions); Setup 4 - movement constraints applied to legs and trunk (PR1 para-rowing class).