Muscle oxygenation during hybrid arm and functional electrical stimulation-evoked leg cycling after spinal cord injury.

This study compared muscle oxygenation (StO2) during arm cranking (ACE), functional electrical stimulation-evoked leg cycling (FES-LCE), and hybrid (ACE+FES-LCE) exercise in spinal cord injury individuals. Eight subjects with C7-T12 lesions performed exercises at 3 submaximal intensities. StO2 was measured during rest and exercise at 40%, 60%, and 80% of subjects' oxygen uptake (VO2) peak using near-infrared spectroscopy.

Monitoring muscle oxygenation after eccentric exercise-induced muscle damage using near-infrared spectroscopy.

Eccentric exercise (EE), a common type of muscular activity whereby muscles lengthen and contract simultaneously, is associated with higher levels of force but may also evoke muscle damage. We investigated the hypothesis that unaccustomed EE might impair muscle oxygenation and muscle blood flow in healthy adults. Ten healthy males performed a bout of 70 maximal eccentric contractions of the elbow flexors.

Muscle oxygenation after downhill walking-induced muscle damage.

The purpose of this study was to investigate changes in muscle oxygenation and blood flow within vastus lateralis after an exhaustive session of downhill walking (DW). Nine healthy males performed 40-min DW on a treadmill with a gradient of -25% and at walking velocity of 6.4 km h(-1).

Electromyographic activity of the biceps brachii after exercise-induced muscle damage.

It is well known that strenuous eccentric exercise may result in muscle damage. We proposed that vigorous eccentric exercise (EE) would impair myoelectric activity of the biceps brachii. This study utilised a 7-day prospective time-series design.