Chung N K, Pin C H
Medical Corps, Defence Medical Research Institute, Singapore, Republic of Singapore.
Mil Med. 1996 Dec;161(12):739-42.
Obesity is often associated with poor heat tolerance. This case-control study was to determine the effect of obesity measured by the Body Mass Index (BMI) on the occurrence of heat disorders. The subjects, 218 soldiers with heat disorders and 537 controls, were matched for age and sex. Obesity was defined as a BMI of greater than 27. The odds ratio for obese soldiers was 3.53; however, their rectal temperatures were not significantly higher at presentation for heat disorder. The Physical Employment Standard (PES) classifies soldiers into A, B, C, and E depending on medical history at the time of enlistment. Soldiers with PES status of A and B were at a marginally higher risk of heat disorders. Correcting for the effect of the PES status, the odds ratio for obese soldiers was 4.29. Therefore, obese soldiers training in a hot and humid environment are at an increased risk of heat disorders.
肥胖往往与耐热性差有关。这项病例对照研究旨在确定用体重指数（BMI）衡量的肥胖对热相关疾病发生的影响。研究对象为218名患有热相关疾病的士兵和537名对照者，按照年龄和性别进行了匹配。肥胖定义为BMI大于27。肥胖士兵的比值比为3.53；然而，他们出现热相关疾病时的直肠温度并无显著升高。体能任用标准（PES）根据入伍时的病史将士兵分为A、B、C和E类。PES状态为A和B的士兵患热相关疾病的风险略高。校正PES状态的影响后，肥胖士兵的比值比为4.29。因此，在炎热潮湿环境中训练的肥胖士兵患热相关疾病的风险增加。
