Naghii M R, Almadadi M, Zarchi A A Karimi
Sport Physiology Research Center and Department of Nutrition, Health School, Baqiyatallah (a.s.), University of Medical Sciences, Tehran, Iran.
Work. 2011;40(2):217-27. doi: 10.3233/WOR-2011-1222.
Cardiovascular/Coronary Heart Disease (CVD) is a leading cause of disability and death worldwide. The most important risk factors for CVD are well-established and are strongly influenced by lifestyle changes. Clearly, physical activity has been shown to be extremely important in reducing the burden of this disease. The aim of this case-control study was to examine the association between intensity of activities and CVD risk factors in healthy military personnel.
Two group of subjects (active [engaging in three session of field exercises/week] =50, and inactive [with no experience of field exercise]=50) were classified by a questionnaire containing demographic, health history, type and level of physical activity, and employment information.
Anthropometric indices, lipid-lipoprotein profile, arterial pressures, and fasting blood glucose were assessed. Independent sample t-tests were used for comparison.
Physically active subjects had significantly (p≤ 0.05) lower measures of body mass indices (except height), lower levels of total cholesterol (TC), low density lipoprotein (LDL-C), triglycerides (TG), systolic and diastolic blood pressure (S/DBP), risk factor (TC/HDL ratio), atherogenic index (LDL/HDL ratio), and higher levels of high density lipoprotein (HDL-C). Fasting blood sugar (FBS) was normal in both groups.
To reduce the risk factors of developing CVD and preventing its progression significantly, it clearly serves to underscore the beneficial properties of physical activity and to promote its effectiveness as a support for healthier lifestyles in the community and particularly among military personnel. The findings of this study substantiate the need for physical exercise to reduce signs and symptoms associated with CVD risk, even among a young, healthy, generally active population. Further, that these results would appear to corroborate the concept of increasing physical activity, including aerobic activity, as a preventative measure.
心血管疾病/冠心病（CVD）是全球致残和致死的主要原因。CVD最重要的危险因素已明确确立，且受到生活方式改变的强烈影响。显然，体育活动已被证明在减轻这种疾病的负担方面极其重要。本病例对照研究的目的是检验健康军事人员活动强度与CVD危险因素之间的关联。
两组受试者（活跃组[每周参加三次野外训练]=50人，不活跃组[无野外训练经历]=50人）通过一份包含人口统计学、健康史、体育活动类型和水平以及就业信息的问卷进行分类。
评估人体测量指标、血脂脂蛋白谱、动脉血压和空腹血糖。采用独立样本t检验进行比较。
身体活跃的受试者体重指数（身高除外）测量值显著更低（p≤0.05），总胆固醇（TC）、低密度脂蛋白（LDL-C）、甘油三酯（TG）、收缩压和舒张压（S/DBP）水平更低，危险因素（TC/HDL比值）、致动脉粥样硬化指数（LDL/HDL比值）更低，高密度脂蛋白（HDL-C）水平更高。两组空腹血糖（FBS）均正常。
为了显著降低发生CVD的危险因素并预防其进展，显然有必要强调体育活动的有益特性，并提高其作为社区特别是军事人员更健康生活方式支持的有效性。本研究结果证实，即使在年轻、健康、一般活跃的人群中，体育锻炼对于降低与CVD风险相关的体征和症状也是必要的。此外，这些结果似乎证实了增加体育活动（包括有氧运动）作为预防措施的理念。
