Eccentric exercise commonly results in muscle damage. The primary sequence of events leading to exercise-induced muscle damage is believed to involve initial mechanical disruption of sarcomeres, followed by impaired excitation-contraction coupling and calcium signaling, and finally, activation of calcium-sensitive degradation pathways. Muscle damage is characterized by ultrastructural changes t...

Objectives: To evaluate ultrasound’s effectiveness after eccentric-exercise-induced muscle damage. Participants: 22 subjects. Intervention: Random assignment to ultrasound (UT) or placebo (PT). Ultrasound was applied immediately and 24, 48, and 72 h after 50 maximum eccentric contractions of the biceps. Outcome Measures: Concentric and eccentric peak torques, resting elbow angle, and subjective...

the nervous system has an important and vital role in the human body, but unfortunately the repairment of damaged nervous tissue is very slowly. for a long time, the scientists have been involved in finding ways to speed up this process. radiation of low power he-ne laser has been suggested to as a way to improve this issue. in this study, 20 rats were divided randomly into control and case gro...

the study of 10,504 cases of industrial accidents, involving 590,164 injured workers employed in different industries in tehran industrial pole during one year shows that the over all incidence rate is 17.80 with a significant variation in regard to age and the type of industry. furthermore, 96.58% 0t accidents have happened within the workshops. considering the final outcome of the accidents, ...

the problem of relative motion control for spacecraft formation flying in eccentric orbits is considered in this paper. due to the presence of nonlinear dynamics and external disturbances, a robust fuzzy sliding mode controller is developed. the slopes of sliding surfaces of the conventional sliding mode controller are tuned according to error states using a fuzzy logic and reach the pre-define...

Occupational therapy practitioners offer services to workers in the workplace to prevent musculoskeletal disorders (MSDs), to help the injured worker restore function, and to recover capacities needed to return to the job. Despite the existence of some evidence about the efficacy of prevention programs, there is uncertainty and even disagreement among health professionals, about the outcome of ...

In Feder v. Martin Marietta Corp.' the Court of Appeals for the Second Circuit found Martin Marietta Corporation liable under Section 16(b) of the Securities and Exchange Act of 19342 for shortswing profits realized on the sale of stock of Sperry Rand Corporation, purchased while Martin Marietta's president was on the Sperry board of directors and sold after he resigned that directorship. Marti...

BACKGROUND Eccentric exercise is commonly used in the management of Achilles tendinopathy (AT) but its effectiveness for insertional AT has been questioned. Soft tissue treatment (Astym) combined with eccentric exercise could result in better outcomes than eccentric exercise alone. HYPOTHESIS Soft tissue treatment (Astym) plus eccentric exercise will be more effective than eccentric exercise ...

CONTEXT Patellofemoral pain syndrome (PFPS) is a common knee condition in athletes. Recently, researchers have indicated that factors proximal to the knee, including hip muscle weakness and motor control impairment, contribute to the development of PFPS. However, no investigators have evaluated eccentric hip muscle function in people with PFPS. OBJECTIVE To compare the eccentric hip muscle fu...

This study aimed to investigate the response of the toll-like receptor 4 (TLR4) signaling pathway to an acute bout of eccentric exercise, and to assess whether eccentric training attenuated the effects induced by acute eccentric exercise. Twenty men (22.4 ± 0.5 yr) were divided into a control group (CG, n = 8) and a training group (TG, n = 12). Both groups performed two acute eccentric bouts on...