The deflection of fatigued neck.

In the neutral and extended positions where the cervical spine is lordotic, a tendency of the more centered joints (e.g., C3–C4, C4–C5) contributing more to FE rotation and anterior–posterior (AP) translation is observed; in the flexed position where the cervical spine is kyphotic, both FE rotation and AP translation of the joints exhibit an increasing trend from top (C1–C2) to bottom (C6–C7).

also in 63,971 other papers

Muscle fatigue manifests itself in the EMG signal as a decreasing trend of median frequency over a sustained contraction ( 2 , 6 , 8 , 9 , 12 , 25 ).

also in 47,180 other papers