Andersen Lars L, Jakobsen Markus D, Pedersen Mogens T, Mortensen Ole S, Sjøgaard Gisela, Zebis Mette K
National Research Centre for the Working Environment, Copenhagen, Denmark.
BMJ Open. 2012 Feb 13;2(1):e000412. doi: 10.1136/bmjopen-2011-000412. Print 2012.
To determine the effect of specific resistance training on forearm pain and work disability in industrial technicians.
Two-armed cluster randomised controlled trial of 20 weeks performed at two industrial production units in Copenhagen, Denmark.
Working-age industrial technicians both with and without pain and disability.
The training group (n=282) performed specific resistance training for the shoulder, neck and arm muscles three times a week. The control group (n=255) was advised to continue normal physical activity.
All participants rated forearm pain intensity (Visual Analogue Scale, 0-100 mm) once a week (primary outcome) and replied to a questionnaire on work disability (Disability of the Arm Shoulder and Hand, 0-100) at baseline and follow-up (secondary outcome).
Questionnaires were sent to 854 workers of which 30 (n=282) and 27 (n=255) clusters were randomised to training and control, respectively. Of these, 211 and 237 participants, respectively, responded to the follow-up questionnaire. Intention-to-treat analyses including both individuals with and without pain showed that from baseline to follow-up, pain intensity and work disability decreased more in the training group than in the control group (4-5 on a scale of 0-100, p<0.01-0.001). Among those with pain >30 mm Visual Analogue Scale at baseline (n=54), the OR for complete recovery at follow-up in the training group compared with the control group was 4.6 (95% CI 1.2 to 17.9). Among those with work disability >30 at baseline (n=113), the OR for complete recovery at follow-up in the training group compared with the control group was 6.0 (95% CI 1.8 to 19.8).
Specific resistance training of the shoulder, neck and arm reduces forearm pain and work disability among industrial technicians.
NCT01071980.
确定特定阻力训练对工业技术人员前臂疼痛和工作能力丧失的影响。
在丹麦哥本哈根的两个工业生产单位进行的为期20周的双臂整群随机对照试验。
有或无疼痛及工作能力丧失的适龄工业技术人员。
训练组（n = 282）每周进行三次针对肩部、颈部和手臂肌肉的特定阻力训练。对照组（n = 255）被建议继续正常的体育活动。
所有参与者每周对前臂疼痛强度进行一次评分（视觉模拟量表，0 - 100毫米）（主要结果），并在基线和随访时回答一份关于工作能力丧失的问卷（手臂、肩部和手部功能障碍，0 - 100）（次要结果）。
向854名工人发放了问卷，其中30个（n = 282）和27个（n = 255）整群分别被随机分配到训练组和对照组。其中，分别有211名和237名参与者回复了随访问卷。意向性分析包括有疼痛和无疼痛的个体，结果显示从基线到随访，训练组的疼痛强度和工作能力丧失程度比对照组下降得更多（0 - 100分制中下降4 - 5分，p < 0.01 - 0.001）。在基线时视觉模拟量表疼痛评分>30毫米的人群中（n = 54），训练组与对照组相比，随访时完全恢复的比值比为4.6（95%可信区间1.2至17.9）。在基线时工作能力丧失>30的人群中（n = 113），训练组与对照组相比，随访时完全恢复的比值比为6.0（95%可信区间1.8至19.8）。
肩部、颈部和手臂的特定阻力训练可减轻工业技术人员的前臂疼痛和工作能力丧失。
NCT01071980。
