Background The role of lower extremity (LE) muscle strength for predicting traumatic knee injury in youth athletes is largely unknown. Aims The aim was to investigate the influence of LE muscle strength on traumatic knee injury in youth female and male athletes. Methods 225 athletes (40% females) from sport senior high schools in Sweden were included in this case-control study. The athletes...

Muscle pain after unaccustomed exercise is believed to result from repetitive active lengthening of skeletal muscle. This "eccentric exercise" initiates a sequence of events that includes muscle cytoskeletal breakdown, inflammation, and remodeling such that subsequent exercise sessions result in less injury and soreness. Recent studies of eccentric exercise using well-defined animal models have...

diverse mechanisms such as mechanical injury, muscular dystrophies, infectious diseases, and biochemical toxicities. Several types of skeletal muscle injury fall into the broad category of sport and exercise induced muscle injury. When exercise involves eccentric muscular contractions, it is associated with overloading of the contractile elements and connective tissues—that is, the force requir...

Introduction: The objective of this paper is to demonstrate techniques on how improve hip flexibility and mobility, especially for track field athletes. It also seeks explain the underlying importance mobility. When athlete’s hips are stiff inflexible, muscle imbalance may occur increase risk injury. Muscle in often causes knee pain, due flexors quadriceps overworking order compensate weaker mu...

Purpose. This study was conducted to examine the effect of pulsed electromagnetic field therapy on quadriceps muscle strength after burn injury. Methods. From April 2021 June 2022, sixty male patients who suffered from second degree lower limb thermal injury and Total body surface area (TBSA) 25% 35% participated in this study. Their ages ranged (20-40) years. They were randomly assigned two gr...

Yoga is believed to be a safe practice; nonetheless, as the number of yoga practitioners has grown, so incidence yoga-related injuries. Overall, lower extremity injuries comprised 64% total injuries; specifically, hip, hamstring, knee, ankle, feet and toe. Although few research studies have quantified hamstring muscle activities in various asanas, evidence correlating it functional anatomy scar...

Skeletal muscle contains progenitor cells (satellite cells) that maintain and repair muscle. It also contains muscle side population (SP) cells, which express Abcg2 and may participate in muscle regeneration or may represent a source of satellite cell replenishment. In Abcg2-null mice, the SP fraction is lost in skeletal muscle, although the significance of this loss was previously unknown. We ...

Muscle injuries are one of the most common traumas occurring in sports. Despite their clinical importance, there are only a few clinical studies on the treatment of muscle injuries. Lack of clinical studies is most probably attributable to the fact that there is not only a high heterogeneity in the severity of injuries, but also the injuries take place in different muscles, making it very deman...

We have characterized matrix metalloproteinase expression in the rat carotid artery after two forms of arterial injury, balloon catheter denudation and nylon filament denudation. Gelatinolytic enzymes with molecular masses of 70 and 62 kD were produced constitutively in the rat carotid. Production of an 88-kD gelatinase was induced after balloon catheter injury, and proteinase production contin...

Systemic administration of beta(2)-adrenoceptor agonists (beta(2)-agonists) can improve skeletal muscle regeneration after injury. However, therapeutic application of beta(2)-agonists for muscle injury has been limited by detrimental cardiovascular side effects. Intramuscular administration may obviate some of these side effects. To test this hypothesis, the right extensor digitorum longus (EDL...