Fatigue during intermittent-sprint exercise

Fatigue during intermittent-sprint exercise.

1. There is a reversible decline in force production by muscles when they are contracting at or near their maximum capacity. The task-dependent nature of fatigue means that the mechanisms of fatigue may differ between different types of contractions. This paper examines how fatigue manifests during whole-body, intermittent-sprint exercise and discusses the potential muscular and neural mechanis...

Key words: METHYLXANTHINES, REPEATED SPRINT ABILITY, INTERMITTENT EXERCISE, ERGOGENIC, FATIGUE

Purpose: The aim of this study was to examine the effects of caffeine supplementation on multiple sprint running performance. Methods: Using a randomised double-blind research design, 21 physically active men ingested a gelatine capsule containing either caffeine (5 mgkg body mass -1 ) or placebo (maltodextrin) one hour before completing an indoor multiple sprint running trial (12  30 m; repe...

Muscle fatigue during intermittent exercise in individuals with mental retardation.

This study examined fatigue profile during intermittent exercise in 10 men with mild to moderate mental retardation (MR) and 10 men without mental retardation (C). They performed 4 x 30s maximal knee extensions and flexions with 1-min rest on an isokinetic dynamometer. Peak torque of flexors (PTFL) and extensors (PTEX), total work (TW), and lactate were measured. Fatigue was calculated as the m...

Fatigue during high-intensity intermittent exercise: application to bodybuilding.

Resistance exercise is an activity performed by individuals interested in competition, those who wish to improve muscle mass and strength for other sports, and for individuals interested in improving their strength and physical appearance. In this review we present information suggesting that phosphocreatine depletion, intramuscular acidosis and carbohydrate depletion are all potential causes o...

Title : Oxygen uptake during repeated - sprint exercise