Adaptive changes in motor control of rhythmic movement after maximal eccentric actions

Disturbed motor control of rhythmic movement at 2 h and delayed after maximal eccentric actions

“…In line with the findings of impaired position, (Saxton et al, 1995;Brockett et al, 1997) and force senses (e.g. Carson et al, 2002), and a reduced ability to discriminate movement velocity (Pedersen et al, 1999) the eccentric muscle actions have been shown to modulate the antagonistic muscles timing and activity pattern of both rhythmic (Bottas et al, 2009) and target movement (Bottas et al, 2005).…”

Foam Rolling for Delayed-Onset Muscle Soreness and Recovery of Dynamic Performance Measures

“…The reduction in performance may be due to a combination of several factors, including (1) physiologic damage to sarcomeres during intense exercise, such as tearing of Z-lines 25 ; (2) a reduction in strength due to acute muscular fatigue 26 ; (3) decreased range of motion; (4) increased inflammation; and (5) trepidation resulting from the pain of movement. 27 The exact mechanism responsible for the reduction in performance remains unclear.…”

Dissociation in changes in EMG activation during maximal isometric and submaximal low force dynamic contractions after exercise-induced muscle damage

“…To prevent skin irritations during the continuous measurements sandpaper was not used to abrade the skin. To ensure electrode placement stayed the same on the four testing days over a period of seven days a permanent marker was used to circle the electrodes on the first day of EMG testing (Bottas et al, 2007;Rainoldi et al, 2004). EMG measurements of the M. triceps brachii and M trapezius were monitored closely to ensure that participants did not use compensation techniques to produce more force during the exercises.…”

“…It has been shown that maximal EMG and neuromuscular function can be altered during a maximal contraction for up to seven to ten days after an EIMD exercise (Bottas et al, 2007;Deschenes et al, 2000), while the symptoms of EIMD subsided seven days after the protocol (Deschenes et al, 2000). However most EMG studies following EIMD have been conducted up to 24 h (Semmler et al, 2007;Turner et al, 2008) or 48 h (Weerakkody et al, 2003) after the exercise protocol, therefore the time course of changes have not been well described.…”