Activation of supraspinatus and infraspinatus partitions during performance of activities of daily living

Activities of daily living (ADL) require rotator cuff muscles. Architecturally and neuroanatomically distinct partitions within these muscles demonstrate differential activation in moderate-to-high demand tasks. However, partition activation during ADLs is unknown. This study investigated supraspinatus and infraspinatus partition activation in six ADLs. Differences occurred in partition activation between ADLs, but no differences between partitions within ADLs, affecting potential clinical research.