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ISSN : 2092-8475(Print)
ISSN : (Online)
Journal of International Academy of Physical Therapy Research Vol.9 No.4 pp.1663-1668

Influence of Evjenth-Hamberg Stretching on the Lung Function of Adults with Forward Head Posture

Nyeon Jun Kim,Ja Pung Koo
Pohang University, Pohang, Republic of Korea
Address for correspondence
Ja Pung Koo, PT, Ph.D Department of Physical Therpay, Pohang University, 60, Sinduk-ro, Heunghae-eup, Pohang, Korea Tel: 82-54-245-1295


This study was conducted to examine the effects of Evjenth-Hamberg stretching of the sternocleidomastoid, upper trapezius, and pectoralis major on the lung function of adults with forward neck posture. The subjects were 20 adult students in P university located in Pohang, Korea, whose degree of head forward displacement measured according to NEW YORK state posture test was mild. The subjects were randomly and equally assigned to the Evjenth- Hamberg Stretching group (EHSG, n=10) and the control group (CG, n=10). Their forced vital capacity (FVC), slow vital capacity (SVC), and maximal voluntary ventilation (MVV) were measured before and after the experiment. In within-group comparison, only the EHSG experienced statistically significant improvement in FVC, forced expiratory volume in the first second (FEV1), and peak expiratory flow (PEE) after the experiment, compared to before the experiment (.05