PNF and Movement 2020; 18(1): 11-22
The Effects of Neck Stabilization Exercise and Proprioceptive Neuromuscular Facilitation on Neck Alignment, NDI, and Static Balance in Adults with Forward-head Posture in a Sitting Position
Gui-Bin Song, P.T., Ph.D⋅Jwa-Jun Kim, P.T., Ph.D1†⋅Kyu-Ryeong Kim, P.T., M.S2⋅Geun-Young Kim, P.T.
Department of Physical Therapy, PT Rehabilitation and Education Center
1 Department of Physical Therapy, Choonhae College of Health Sciences
2 Department of Physical Therapy, Kyungwoon University
Correspondence to: Jwa-Jun Kim (
Received: November 2, 2019; Revised: November 15, 2019; Accepted: November 21, 2019; Published online: April 30, 2020.
© Korea Proprioceptive Neuromuscular Facilitation Association. All rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Purpose: The purpose of this study was to investigate the effects of neck stabilization exercise with PNF for neck alignment, neck disability index, and sitting balance in adults with forward-head posture.
Methods: Forty participants were randomly assigned to two groups. Patients in the neck stabilization exercise group (NSG, n = 20) and the proprioceptive neuromuscular facilitation neck pattern exercise group (PNFG, n = 20) were studied 30 minutes a day three times a week for four weeks. Outcomes were measured using cranial vertical angle (CVA), the Korean version of the neck disability index (KNDI), anterior limit of stability (ALOS), and posterior limit of stability (PLOS) before and after the intervention period.
Results: There were significant effects in the CVA and the KNDI of both groups pre- and post-intervention. There were significant effects in ALOS and PLOS in the PNFG pre- and post-intervention compared with the NSG.
Conclusion: The results of this study suggest that PNF with neck exercise could be beneficial to the static balance of adults with forward-head posture.
Keywords: Forward head posture, Neck stabilization exercise, PNF, Neck disability index, Static balance

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