The purpose of this study was to assess the reliability of a method for testing peak torque and work output of the knee extensor muscle during concentric and eccentric loading at three velocities of exercise (60 degrees, 120 degrees, and 180 degrees/sec). Fourteen healthy men (23-32 years of age) performed exercises of the quadriceps femoris muscles during concentric and eccentric loading, with...

PURPOSE To compare the effects of a 10-week training program with two different exercises -- traditional hamstring curl (HC) and Nordic hamstrings (NH), a partner exercise focusing the eccentric phase -- on muscle strength among male soccer players. METHODS Subjects were 21 well-trained players who were randomized to NH training (n = 11) or HC training (n = 10). The programs were similar, wit...

We present a case study of a person (63 year-old man), who has been using statins for 18 years, with rhabdomyolysis of the bilateral adductor muscles associated with strenuous and prolonged eccentric exercises (hiking) in a hot environment. Clinical examination showed predominantly on the right side muscle swelling and palpational pain of the bilateral adductor muscle groups and bilateral tibia...

OBJECTIVE Hamstring injuries are a common occurrence among professional football cheerleaders. The purpose of this study is to identify the effects of an eccentric, closed-chain hamstring exercise intervention on hamstring injury-associated pain during the course of the football season among professional football cheerleaders. METHODS Forty-three female cheerleaders participated in an eccentr...

High hamstring tendinopathy is an uncommon overuse injury seen in running athletes. Patients typically report deep buttock or thigh pain. A detailed physical examination and, occasionally, imaging studies are necessary to confirm the diagnosis. Rehabilitation involves soft-tissue mobilization, frequent stretching, and progressive eccentric hamstring strengthening and core stabilization exercise...

Objectives: To compare the effectiveness of an isolated Eccentric exercise program versus Conventional in athletes with rotator cuff tendinopathy. Methods: The study included 80 (RC) tendinopathy (diagnosed on Magnetic resonance imaging) presenting to author’s tertiary level institute. Patients were randomized into two groups 40 each. eccentric group (n = 40, mean age 26.4years ) received train...

Pullover and straight arm pulldown exercises are commonly used in resistance exercise programs to improve sports performance or physical activity health programs. This study aimed evaluate the individual electromyographic (EMG) of pectoralis major (clavicular, sternal, costal portions), latissimus dorsi, anterior deltoid, triceps brachii, rectus abdominis muscles a barbell pullover at 100% biac...

Objective: In this study, in order to establish a more effective therapeutic model for the patients with chronic rotator cuff tendinosis, the authors attempted to compare the therapeutic effects of general physical therapy, eccentric contraction exercise, extracorporeal shock wave therapy (ESWT) and their combination for patients with noncalcific subscapular tendinosis. Methods: 120 patients wi...

An isoinertial strength assessment was performed to examine the kinetic and kinematic behavior of barbell during several muscle actions. Velocity–time characteristics, force–time relationship, one repetition maximum (1RM), power output, acceleration were compared in eccentric–concentric (EC) versus concentric only (C) sequences bench press (BP) military (MP). In two separate sessions, 28 29 res...