Paraphrase Essay Example | Topics and Well Written Essays - 750 words

Paraphrase - Essay Example Determining whether this was an appropriate sample or whether the study was conducted in accordance with experimental testing standards is not possible given the provided information, which detracts somewhat from the study’s reliability. Open kinetic chain and active knee positioning was selected as the means of testing knee position sense because JPS, or the ability to reproduce joint angles, is considered an important component of joint perception and JPS is commonly measured through active ipsilateral matching. It has been suggested that JPS is more sensitive to fatigue than kinesthesia (Skinner et al, 1986) while studies such as Paillard and Brouchon (1974) have suggested that active use of the joint contributes to a clear sense of knee positioning. Because of this more precise conception of the knee’s position, it was hypothesized that this method would provide a more accurate measurement of muscle receptors in the extensor and flexor structures. As part of the published study, the researcher did provide a brief explanation of the data collection method, but further analysis proves the study’s method is insufficient for accurate results. In addition to the problem already mentioned regarding the selection of the study sample, the participants engaged in the data collection process during a single morning session, providing little comparison data and no control group. According to Ribeiro et al (2007), measurements were taken once before applying fatigue protocol and once afterwards. This fatigue protocol is described as 30 repetitions at maximum range of motion on an isokinetic dynamometer, essentially a computerized leg lift machine with additional gauges used to measure various muscle groups within the leg. The rate of activity was set at an angular velocity of 120 s (Ribeiro et al, 2007). To ensure the relevant muscles were properly warmed up before this activity, participants were asked to participate in five minu tes of