Knee Impairment Assessment

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The knee joint kinematics could be seriously affected by different reasons. In most of these cases a clear isolation of the specific reason is seldom possible due to the absence of the sufficient results to consolidate the argument (Murray et al, 1985). One such case is the reason for the weakness of the muscle during the aging process.


Further, earlier studies have shown that the impairment of muscles could also lead to proprioceptive acuity (Aniss et al, 1990). The detailed study have been undertaken to compare the quadriceps strength, activation proprioceptive acuity, postural stability and the performance of functional activities in young, middle-aged and elderly subjects (Hurley et al, 1998). The results from this study showed revealed that proprioception and functional performance on different age groups revealed that the strength of the quadriceps was negatively correlated with the age. While all the age groups displayed identical postural stability in bipedal stance with their eyes open, both the middle and elderly age groups were unable to maintain monopedal stance at least for 15 seconds (Hurley et al, 1998). On postural stability, the monopedal stance has significant age influence over the bipedal stance. Hurlet et al (1998) have confirmed that deterioration of muscle strength, proprioceptive acuity and postural stability with the age is the prime reason for the increased duration of the ADL and adversely effects the individual functional performance with elderly population.
Certain ailments like osteoarthritis (OA) also lead to the malfunctioning of the quadriceps, which in long term result in reduced mob ...
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