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KMID : 1142420230210010075
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PNF and Movement
2023 Volume.21 No. 1 p.75 ~ p.86
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Effects of Pectoralis Minor Stretching and Lower Trapezius Strengthening Exercise using PNF on Posture Change, Shoulder Range of Motion, and Pain in Rotator Cuff Repair Patients with Rounded Shoulder Posture
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Kim Beom-Ryong
Kang Tae-Woo Kang
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Abstract
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Purpose: This study aims to determine the effect of proprioceptive neuromuscular facilitation (PNF) pectoralis minor stretching and lower trapezius strengthening exercise on posture change, shoulder range of motion (ROM), and pain in rotator cuff repair patients with a rounded shoulder posture (RSP).
Methods: Following baseline measurements, the subjects (n = 25) with rotator cuff repair were randomized into two groups: the PNF group (n = 13), which engaged in PNF pectoralis minor stretching and lower trapezius strengthening exercise, and the control group (n = 12), which received traditional physical therapy. Each group participated in the intervention five times per weekfor two weeks. The RSP values for the postural changes, flexion and abduction ROM, and visual analogue scales (VASs) of both groups were recorded at both pre- and post-intervention. In addition, before and after the intervention, a paired t-test was conducted to compare the within-group changes and an independent t-test to compare the between-group differences.
Results: After the two-week intervention, both groups experienced significantly decreased RSP and VAS values (p < 0.05) and a significantly increased ROM (p < 0.05). Meanwhile, the PNF group showed greater improvements in RSP, ROM, and VAS than the control group (p < 0.05).
Conclusion: These results suggest that PNF pectoralis minor stretching and lower trapezius strengthening exercise reduce posture and shoulder pain and enhance ROM in rotator cuff repair patients with RSP.
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KEYWORD
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Proprioceptive neuromuscular facilitation, Rotator cuff, Rounded shoulder posture, Shoulder injuries
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