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KMID : 1142420210190010137
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PNF and Movement
2021 Volume.19 No. 1 p.137 ~ p.146
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The Effect of Lower Trapezius Strengthening Exercise Using PNF on Pain, Range of Motion, and Disability in Patients with Chronic Neck Pain
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Song Min-Jeong
Kang Tae-Woo
Kim Beom-Ryong
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Abstract
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Purpose: The study aimed to determine the effect of proprioceptive neuromuscular facilitation (PNF) lower trapezius muscle strengthening exercise on pain, cervical range of motion (ROM), and neck disability index (NDI) in patients with chronic neck pain.
Methods: Following baseline measurements, the subjects (n = 30) with chronic neck pain were randomized into two groups: the PNF group (n = 15) that received PNF strength training of the lower trapezius muscles or a control group (n = 15) that received gentle palpation of the skin. Each group participated in the intervention for 30 min, three times per week for six weeks. The visual analogue scale for pain, ROM, and NDI of both groups were recorded at both pre- and post-intervention. Paired t-tests were used to determine significant changes in the post-intervention compared with pre-intervention, and independent t-tests were used to analyze differences in the dependent variables between the two groups.
Results: After the six-week intervention, both groups experienced significantly decreased pain and NDI (p < 0. 05) and significantly increased cervical flexion, extension, lateral flexion, and rotation ROM (p < 0.05). The PNF group that received PNF strength exercise of the lower trapezius muscles showed greater improvements in pain and NDI and cervical rotation of ROM than those of the control group (p < 0.05).
Conclusion: These results suggest that the PNF lower trapezius strengthening exercise reduces neck pain and disability level and enhances cervical ROM in patients with chronic neck pain.
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KEYWORD
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Chronic neck pain, Cervical range of motion, Strengthening exercise, Trapezius
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