Frank Erica, Tong Elizabeth, Lobelo Felipe, Carrera Jennifer, Duperly John
Department of Health Care and Epidemiology, University of British Columbia, Vancouver, Canada.
Med Sci Sports Exerc. 2008 Mar;40(3):413-21. doi: 10.1249/MSS.0b013e31815ff399.
Some literature shows a positive relationship between physicians' personal physical activity (PA) levels and physicians' encouraging patients' PA, though it remains unclear how this evolves during medical training. In this paper, we describe U.S. medical students' PA levels and factors predicting relevance and frequency of their PA counseling of patients.
This is a prospective survey of a representative sample of U.S. medical students from 16 schools (N = 2316) designed to determine health-related attitudes and practices. Student's PA levels were assessed using a Godin exercise questionnaire. An 80.3% (N = 1658) response rate was achieved during 4 yr.
More than half (61%) of U.S. medical students adhered to CDC PA recommendations. This rate was relatively stable during the 4 yr of medical training. Of those who reported a lot of stress in the last 12 months or 2 wk, fewer than 60% complied with the CDC exercise recommendations, compared with at least 80% who reported almost no stress. Frequency of PA counseling of patients was consistently related to personal PA practices. The percent of students perceiving that PA counseling would be highly relevant to their practices decreased during the 4 yr of medical school, from 69 to 53% (P < 0.01).
Among U.S. medical students, personal PA levels are higher than those of age-matched peers in the general population, are maintained throughout medical school, and are correlated with frequency of PA counseling of their patients. Promotion of adequate PA habits during medical education may be an important step to improve the PA preventive counseling that future clinicians provide.
一些文献表明医生的个人身体活动（PA）水平与医生鼓励患者进行身体活动之间存在正相关关系，不过在医学培训过程中这种关系如何演变尚不清楚。在本文中，我们描述了美国医学生的身体活动水平以及预测他们为患者提供身体活动咨询的相关性和频率的因素。
这是一项对来自16所学校的具有代表性的美国医学生样本（N = 2316）进行的前瞻性调查，旨在确定与健康相关的态度和行为。使用戈丁运动问卷评估学生的身体活动水平。在4年期间实现了80.3%（N = 1658）的回复率。
超过一半（61%）的美国医学生遵守美国疾病控制与预防中心（CDC）的身体活动建议。在医学培训的4年期间，这一比例相对稳定。在过去12个月或2周内报告有很大压力的学生中，不到60%遵守CDC的运动建议，而报告几乎没有压力的学生中这一比例至少为80%。为患者提供身体活动咨询的频率与个人身体活动习惯始终相关。在医学院的4年期间，认为身体活动咨询与其职业高度相关的学生比例从69%降至53%（P < 0.01）。
在美国医学生中，个人身体活动水平高于一般人群中年龄匹配的同龄人，在整个医学院期间保持稳定，并且与他们为患者提供身体活动咨询的频率相关。在医学教育期间促进养成适当的身体活动习惯可能是改善未来临床医生提供的身体活动预防咨询的重要一步。
