Smith B J, Bauman A E, Bull F C, Booth M L, Harris M F
South Western Sydney Area Health Service, Australia.
Br J Sports Med. 2000 Aug;34(4):262-7. doi: 10.1136/bjsm.34.4.262.
To investigate the impact of a simple written prescription for physical activity given by a general practitioner and the effect of supplementing this with mailed information materials about physical activity.
A controlled trial was conducted in 27 general practices in New South Wales, Australia. Subjects were sequential routine care patients between 25 and 65 years old. Controls (n = 386) were recruited first, and intervention subjects two weeks later. Intervention subjects were randomised to receive a prescription only (n = 380) or a prescription plus a mailed booklet (n = 376). Self reported physical activity levels were measured by interview at baseline, 6-10 weeks, and seven to eight months.
By intention to treat, the average changes in minutes of total physical activity did not differ significantly between the groups. Inactive people in the prescription plus supplementary booklet group were significantly more likely than controls to report an increase in their physical activity by at least 60 min/week after 6-10 weeks (odds ratio 1.58, 95% confidence interval 1.06 to 2.35). No significant short term improvements in self reported activity were shown in the prescription only group. In the supplemented group, the proportion reporting an increase in physical activity to 3,344 kJ/week at 6-10 weeks was not significant, and neither intervention group showed significant increases in any of the outcome measures at seven to eight months by intention to treat. Treatment received analysis showed greater improvements in intervention groups, especially the prescription plus booklet group, in which the odds of inactive people in this group reporting increased activity became significant at seven to eight months.
A prescription for physical activity from a general practitioner, supplemented by additional written materials, can lead to modest short term improvements in self reported physical activity levels among inactive patients. A prescription alone was found not to be effective.
研究全科医生开具的简单身体活动书面处方的影响，以及补充关于身体活动的邮寄信息材料的效果。
在澳大利亚新南威尔士州的27家全科诊所进行了一项对照试验。研究对象为25至65岁的序贯常规护理患者。首先招募对照组（n = 386），两周后招募干预组对象。干预组对象被随机分为仅接受处方组（n = 380）或接受处方加邮寄手册组（n = 376）。在基线、6 - 10周以及7至8个月时通过访谈测量自我报告的身体活动水平。
按意向性分析，两组总身体活动分钟数的平均变化无显著差异。在6 - 10周后，处方加补充手册组中原本不活动的人比对照组更有可能报告其身体活动每周增加至少60分钟（优势比1.58，95%置信区间1.06至2.35）。仅处方组在自我报告的活动方面未显示出显著的短期改善。在补充组中，6 - 10周时报告身体活动增加至每周3344千焦的比例不显著，且按意向性分析，两个干预组在7至8个月时的任何一项结局指标均未显示出显著增加。接受治疗分析显示干预组有更大改善，尤其是处方加手册组，该组中原本不活动的人在7至8个月时报告活动增加的优势变得显著。
全科医生开具的身体活动处方，辅以额外的书面材料，可使不活动患者自我报告的身体活动水平在短期内有适度改善。发现仅开具处方无效。
