Effects of a workplace physical exercise intervention on the intensity of headache and neck and shoulder symptoms and upper extremity muscular strength of office workers: A cluster randomized controlled cross-over trial

The purpose of the study was to examine the effects of a workplace physical exercise intervention on the perceived intensity of headache and the intensity of symptoms in the neck and shoulders, as well as on the extension and flexion strength of the upper extremities. The study was a cluster randomi...

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Bibliographic Details
Published in:	Pain (Amsterdam) Vol. 116; no. 1; pp. 119 - 128
Main Authors:	Sjögren, Tuulikki, Nissinen, Kari J., Järvenpää, Salme K., Ojanen, Markku T., Vanharanta, Heikki, Mälkiä, Esko A.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01-07-2005 Elsevier
Subjects:	Activities of Daily Living Adult Behavior therapy. Cognitive therapy Biological and medical sciences Cluster Analysis CR10 Cross-Over Studies Exercise Exercise Therapy Female Headache Headache - rehabilitation Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy Humans Male Medical sciences Middle Aged Muscle, Skeletal - physiopathology Neck Pain - rehabilitation Neck symptoms Nervous system (semeiology, syndromes) Neurology Occupational health Pain Measurement - methods Psychology. Psychoanalysis. Psychiatry Psychopathology. Psychiatry Shoulder Pain - rehabilitation Shoulder symptoms Time Factors Treatments Upper Extremity Workplace CR10 Headache Occupational health Exercise Shoulder symptoms Neck symptoms Physical exercise Nervous system diseases Statistical analysis Cluster Linear model Pain Shoulder Worker Neck Neurological disorder Strength
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Summary:	The purpose of the study was to examine the effects of a workplace physical exercise intervention on the perceived intensity of headache and the intensity of symptoms in the neck and shoulders, as well as on the extension and flexion strength of the upper extremities. The study was a cluster randomized controlled trial. The cross-over design consisted of physical exercise intervention (15 weeks) and no-intervention (15 weeks). The subjects ( n=53) were office workers (mean age 46.6 (SD 8.4)) who reported headache ( n=41) symptoms in the neck ( n=37) or shoulders ( n=41), which had restricted their daily activities during the last 12 months. Pain symptoms were measured using the Borg CR10 scale and muscular strength with a 5RM test. Statistical analyses were based on linear mixed models. Physical exercise intervention resulted in a slight, but statistically significant, decrease in the intensity of headache and neck symptoms, as well as an increase in the extension strength of the upper extremities. The mean decrease in headache during the 5-week period was 0.64 CR10 (95% CI 0.28–1.00) ( P=0.001) or 49% (95% CI 22–77), and 0.42 CR10 (95% CI 0.11–0.72) ( P=0.002) or 49% (95% CI 13–85) in the intensity of neck symptoms. The mean increase in the extension strength of the upper extremities was 1.3 kg (95% CI 0.5–2.1) ( P=0.001) or 4% (95% CI 1–6). The intervention had no effect on the intensity of shoulder symptoms or the flexion strength of the upper extremities. Specific exercise may be clinically important to alleviate headache and neck symptoms.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 ObjectType-News-3
ISSN:	0304-3959 1872-6623
DOI:	10.1016/j.pain.2005.03.031