Comparison of the isokinetic strength of the flexor and extensor muscles of the knee joint of blind and partially sighted female students
Oral Presentation
Paper ID : 1474-SSRC (R1)
Authors
1دانشجو
2دانشیار دانشگاه شهید بهشتی
3گروه آسیب شناسی ورزشی، دانشکده علوم ورزشی، دانشگاه شهید بهشتی تهران، تهران، ایران
4استادیار پژوهشکده طب ورزشی پژوهشگاه تربیت بدنی و علوم ورزشی
Abstract
Abstract
Purpose :the aim of this study was to compare the isokinetic strength of knee flexor and extensor muscles of blind and partially sighted female students in Tehran.
Methodology: 52 subjects, 22 visual impaired and 33 sighted participated in this project from high school of Tehran. Variables PT/BW, average power ,the ratio in knee flexion and extension at three angular velocities (60, 120, 180 s/°), were compared in two groups. To check the normality of the data. The Shapiro-Wilk test was used for homogeneity, and there was no significant difference (p > 0.05). Also, independent t-test was used to determine the difference between two groups.
Results:
In this study the significant difference was observed between the two groups ,in (PT/BW) index in dominant and non-dominant leg in knee extension at angular velocities (60 ,120,180 s/°).In flexion of 60 s/°) the blind group was better and there was a significant difference between the two groups (p < 0.05).The average power in three angle velocities was significant in ( in dominant and non-dominant leg) and the sighted group was better. There was a significant difference in the ratio of flexion to extension in dominant and non-dominant leg between the two groups
(p < 0.05) .
In the intra-group comparison of the dominant and non-dominant leg (180 s/°) extension. Also there was a significant difference in PT/BW index in both groups. There was a significant difference in average power index ( in flexion 180 ,60 s/° ) (p < 0.05). There was no significant in other ratio and angular velocities(p > 0.05).
Purpose :the aim of this study was to compare the isokinetic strength of knee flexor and extensor muscles of blind and partially sighted female students in Tehran.
Methodology: 52 subjects, 22 visual impaired and 33 sighted participated in this project from high school of Tehran. Variables PT/BW, average power ,the ratio in knee flexion and extension at three angular velocities (60, 120, 180 s/°), were compared in two groups. To check the normality of the data. The Shapiro-Wilk test was used for homogeneity, and there was no significant difference (p > 0.05). Also, independent t-test was used to determine the difference between two groups.
Results:
In this study the significant difference was observed between the two groups ,in (PT/BW) index in dominant and non-dominant leg in knee extension at angular velocities (60 ,120,180 s/°).In flexion of 60 s/°) the blind group was better and there was a significant difference between the two groups (p < 0.05).The average power in three angle velocities was significant in ( in dominant and non-dominant leg) and the sighted group was better. There was a significant difference in the ratio of flexion to extension in dominant and non-dominant leg between the two groups
(p < 0.05) .
In the intra-group comparison of the dominant and non-dominant leg (180 s/°) extension. Also there was a significant difference in PT/BW index in both groups. There was a significant difference in average power index ( in flexion 180 ,60 s/° ) (p < 0.05). There was no significant in other ratio and angular velocities(p > 0.05).
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