Effects of vascular occlusion on surface electromyography and muscle oxygenation during isometric contraction

Article Abstract:

The changes in motor-unit activity and muscle oxygenation during isometric contraction with and without vascular occlusion, using surface electromyography (EMG) and near-infrared spectroscopy (NIRS) are investigated. Results suggest that oxygen supply to active muscles was impaired by occlusion and that type II fibers were then preferentially recruited, which suggests that hypertrophy occurs in low-intensity exercise in patients with limitations.

Care and treatment, Usage, Muscle contraction, Near infrared spectroscopy

---

Hip adduction does not affect VMO EMG amplitude or VMO:VL ratios during a dynamic squat exercise

Article Abstract:

A study was undertaken to determine whether VMO (vastus medialis oblique) activation amplitude and the VMO to vastus lateralis (VL) activation ratio (VMO:VL) were altered by the performance of active hip adduction during a dynamic squat exercise. It was observed that active hip adduction did not greatly change VMO amplitude or VMO:VL ratio during the knee flexion or knee extension parts of the dynamic squat exercise.

Physiological aspects, Knee, Isometric exercise

---

Quantifying bilateral joint contributions during three variations of the step exercise

Article Abstract:

A study to quantify the joint torque contributions of the lower extremity during three different step exercises that include forward step-up (FS), lateral step-up (LS) and step-down (SD) is conducted. Results reveal that choice of step exercise results in different distributions of mechanical demand across the lower extremities.

Science & research, Research, Aerobic exercises, Torque

Similar abstracts:

• Abstracts: Effects of model similarity on self-efficacy and muscular endurance: a second look. The relationship between the competitive state anxiety inventory-2 and sport performance: a meta-analysis
• Abstracts: Interaction of step length and step rate during sprint running. Physical activity and cognitive decline, the role of the apolipoprotein e4 allele
• Abstracts: Effect of microhydrin on blood lactate, protein carbonyls, and glutathione status in rats before and after aerobic exercise
• Abstracts: Effect of an amino acid, protein, and carbohydrate mixture on net muscle protein balance after resistance exercise
• Abstracts: The effect of extrinsic motivation on cycle time trial performance. Influence of crank rate in hand cycling

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.