earticle

영어

This study set out to assess lower extremity strength and its ratio according to chronic physical changes caused by habitual frequent wearing of high Heels. It also aimed to investigate the effects of lower extremely strength ratio on barefoot walking with no high Heels and examine the resulting negative physical changes and problems, thus proposing a need for research on prevention and improvement measures. For those experiment purposes, the investigator divided 20 subjects into a group habitual wearing high Heels (Heels group) and the other group that hardly wore high Heels(Normal group). Each of the two groups consisted of ten subjects. After giving them detailed explanations about the experiment and receiving their informed consents, the investigator administered a series of physical test, isokinetic muscle strength test, and walking analysis. An isokinetic concentric and eccentric contraction test was performed on the ankle and knee joint with Biodex system Ⅲ(Biodex Medical Systems, Inc., NY., U.S.A), an isokinetic muscle strength measuring equipment, in order to measure the subjects' lower extremity strength and assess their muscle strength and conventional and functional lower extremity strength ratio. The knee joint protocol involved 5 and 15 measurements at 60°/sec and 180°/sec, respectively. The ankle joint protocol involved 5 and 15 measures at 30°/sec and 120°/sec, respectively. During gait analysis, the hip, knee, and ankle joint were measured for movement and moment during walking in the sagittal, coronal, and cross section. The subjects were asked to walk according to their ordinary strides and speed(self-selection). Biomechanical data were collected with Motion Analysis System(Santa Rosa, CA), which is equipped with six infrared detection cameras and two force plates, every 60 seconds. The analysis program(Orthtrek ; Santa Rosa, CA) calculated the movement and movement of the hip, knee, and ankle joint of each subject during walking in the sagittal, coronal, and cross section. Their data were compared and analyzed in numbers and percentage. Research findings were analyzed according to mean(M) and standard deviation(SD) with the SPSS 12.0 Version statistical program. Mann-Whitney U test was conducted for findings with significant differences between the two groups.