Myofeedback training and intensive muscular strength training to decrease pain and improve work ability among female workers on long-term sick leave with neck pain: a randomized controlled trial

• Published in: International archives of occupational and environmental health 2011-03, Vol.84 (3), p.335-346
• Main Authors: Dellve, Lotta, Ahlstrom, Linda, Jonsson, Andreas, Sandsjö, Leif, Forsman, Mikael, Lindegård, Agneta, Ahlstrand, Christina, Kadefors, Roland, Hagberg, Mats
• Format: Article
• Language: English
• Subjects: Adult; Biofeedback; Biofeedback, Psychology; Biological and medical sciences; Clinical outcomes; Clinical trials; Diseases of the osteoarticular system; Earth and Environmental Science; Electromyography; Environment; Environmental Health; Female; Females; Hand Strength - physiology; Health Status; Home environment; Humans; MEDICAL AND HEALTH SCIENCES; Medical sciences; MEDICIN OCH HÄLSOVETENSKAP; Middle Aged; Miscellaneous. Osteoarticular involvement in other diseases; Muscle; Muscle, Skeletal - physiology; Musculoskeletal diseases; Neck Pain - physiopathology; Neck Pain - rehabilitation; Neck Pain/physiopathology/rehabilitation; Occupational Diseases - physiopathology; Occupational Diseases - rehabilitation; Occupational Diseases/physiopathology/rehabilitation; Occupational health; Occupational Medicine/Industrial Medicine; Occupational Therapy - methods; Original; Original Article; Pain management; Psychology; Rehabilitation; Relaxation Therapy; Resistance Training - methods; Risk factors; Sick Leave; Skeletal/physiology; Training; Treatment Outcome; Weightlifting
• ISSN: 0340-0131; 1432-1246; 1432-1246
• DOI: 10.1007/s00420-010-0568-5

The theoretical framework is that muscle tension in the neck is related to insufficient muscular rest and is a risk factor for chronic pain and reduced work ability. Promoting muscle strength and muscle rest may increase work ability and reduce neck pain. Objectives To test whether myofeedback training or intensive strength training leads to decreased pain and increased work ability in women on long-term sick leave. Methods This is a randomized controlled trial of two 1-month interventions with myofeedback or muscular strength training in the home environment. Female human service organization workers ( n  = 60) on long-term (>60 days) sick leave and with chronic neck pain were followed with self-reported and laboratory-observed data of health, pain, muscular activation, and work ability, at baseline, immediately after the intervention and 3 months after baseline. Results For both intervention groups, pain was lowered over time compared with the control group. Decreased pain and muscular activity was associated with increased self-rated work ability and with laboratory-observed work ability at 3-month follow-up. Decreased pain was also associated with increased self-rated work ability at 1-month follow-up. Muscular strength training was associated with increased self-rated work ability and mental health. Myofeedback was associated with increased observed work ability and self- rated vitality. Conclusions The two interventions showed positive results, suggesting that they could be developed for use in health care practice to address pain and work ability. The intensive muscular strength training program, which is both easy to conduct at home and easy to coach, was associated with increased work ability.