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KMID : 0608320160230040001
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Physical Therapy Korea
2016 Volume.23 No. 4 p.1 ~ p.8
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The Effect of Patellar Inferior Gliding on Knee Flexion Range of Motion in Individuals With Rectus Femoris Tightness
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Kim Jun-Hee
Kim Moon-Hwan
Jeon In-Chul
Hwang Ui-Jae
Kwon Oh-Yun
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Abstract
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Background: Various methods are used for recovery of knee flexion range of motion (ROM) due to a tightened rectus femoris muscle (RFM) or limited inferior glide of the patella. Stretching methods are common interventions for restoring the tightened RFM length. Also patellar inferior gliding (PIG) technique can recover tightened RFM length too. However, effect of applying the PIG to passive knee flexion (PKF) has not been studied.
Objects: The purpose of this study was to investigate the effect of combining PIG with RFM stretching for improving knee flexion ROM in subjects with RFM tightness.
Methods: Twenty-six subjects with RFM tightness were recruited. Two different methods of knee stretching were tested: 1) PKF during modified Thomas test (MTT) and 2) PKF with PIG during MTT. The passive stretching forces was controlled by hand-held dynamometer. The knee flexion ROM angle was measured by a MTT with ImageJ software. Differences between the conditions with and without PIG were identified with a paired t-test.
Results: The knee flexion ROM was significantly greater for PKF with PIG (114.44±9.33) than for PKF alone (108.97±9.42) (p<.001).
Conclusion: A combination of passive knee flexion exercise and PIG can be more effective than PKF in increasing knee flexion ROM in individuals with RFM tightness.
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KEYWORD
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Knee flexion range of motion, Modified Thomas test, Passive knee flexion, Patellar inferior gliding, Rectus femoris tightness
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