context hamstring acute muscle injuries are prevalent in several sports including afl football (australian football league), sprinting and soccer, and are often associated with prolonged time away from sport. evidence acquisition in response to this, research into prevention and management of hamstring injury has increased, but epidemiological data shows no decline in injury and re-injury rates...

purpose prolonged physical exercise results in transient elevations of biochemical markers of muscular damage. this study examined the effect of short-term maximal exercise on these markers, homocysteine levels (hcy), and total antioxidant status (tas) in trained subjects. methods eighteen male football players participated in this study. blood samples were collected 5-min before and 3-min afte...

results the means ± standard deviations of the averaged emg during the lateral and frontal wp exercises were 40.1 ± 19.1, and 23.7 ± 11.3 µv, respectively. those of the percent maximal voluntary contraction during the lateral and frontal wp exercises were 51.4 ± 29.7, and 31.3 ± 20.5, respectively. gmax activity during the lateral wp exercise was significantly higher than that during the fronta...

background: heavy metals contaminated environment constitutes a serious problem for human and other organisms. moreover, metals such as cd, pb, and cr are toxic metals. therefore, the purpose of this study was to evaluation of cd, pb, and cr in the muscle of cow, calf, and sheep slaughtered in sanandaj city from iran. methods: this was a descriptive cross-sectional study in sanandaj city in nov...

conclusions the eo muscle was thinner and had higher activity during adim in the ais group. analysis of our data showed that in the ais group the higher the lumbar spinal curve to the right, the thicker the right tra compared to the left tra. results there was no side to side asymmetry in muscle thickness at rest and also during adim in two groups. thickness of right eo [0.39 (0.09) in the ais ...

objectives: it is well known that neuromuscular function is temperature sensitive. changing of muscle temperature can effect voluntary muscle contraction. the aim of this study was to investigate the effects of cooling and heating on maximal isometric force generated by the elbow flexor musculature in male subjects. methods: forty five healthy males encompassing 3 groups participated in the cur...

this research aims  to monitor the trace elements content (cr, cu, pb, cd, ag, al, mn, mg, zn and fe) in the tissues of the muscle and liver of silver carp (h. molitrix ) and stone moroko (p. parva) from zarivar wetland in western iran. this research was cross-sectional. the research specimen  was fish caught from zarivar wetland. metal concentration analysis was carried out utilizing an  icp. ...

background: the aim of this study was to investigate muscle damage indicators and electromyography activities of quadriceps muscles at 25° of hip flexion in untrained healthy females after an eccentric exercise induced muscle fiber damage.   methods : a total of 14 healthy females participated in this pre-experimental study. the subjects performed maximal eccentric quadriceps contractions at 25...

background hamstring muscles play an important role in functional activities and relaxation and most people around the world suffer from the shortened muscles. different methods of repairing were suggested and there were disagreements with regard to determination of one technique with high efficiency. objectives this study aimed to introduce more effective method, either a static stretch or hol...

background: alterations in the neuromuscular control of the spine were found in patients with chronic low back pain (clbp). sudden loading of the spine is assumed to be the cause of approximately 12% of lower back injuries. however, some aspects of this problem, such as alterations in the sensory–motor control of the spine, remain questionable. this study investigated postural and neuro–motor c...