It is well-recognised that steady-state isometric muscle force is decreased following active
shortening (force depression, FD) and increased following active stretch (force
enhancement, FE). It has also been demonstrated that passive muscle force is increased
following active stretch (passive FE). Several studies have reported that FD increases with
shortening amplitude and that FE and passive FE increase with stretch amplitude. Here, we
investigate whether these trends continue with further increases in shortening or stretch …