Research Center for Overwork-Related Disorders, National Institute of Occupational Safety and Health, Japan, Kawasaki, Japan.
Ergonomics Research Group, National Institute of Occupational Safety and Health, Japan, Kawasaki, Japan.
J Occup Health. 2022 Jan;64(1):e12353. doi: 10.1002/1348-9585.12353.
Cardiorespiratory fitness (CRF) is an important factor for evaluating cardiovascular disease (CVD) risk. We recently developed a novel method (National Institute of Occupational Safety and Health, Japan step test [JST]) for evaluating CRF in workers; its criterion validity has been investigated. However, its association with health risk must be confirmed before its application in the workplace. Therefore, we aimed to determine the association of JST-evaluated CRF with the prevalence of CVD risk among Japanese workers.
For CRF evaluation, working adults completed the JST, which comprised a 3-minute stepping exercise and a 2-minute recovery period. Data on CVD risk factors and clinical history were collected through medical certification within 1 year from the date of the JST measurements. Participants were divided into three groups for multiple logistic regression analyses based on the JST values (low, moderate, and high). Odds ratios (ORs) for the prevalence of CVD risk were calculated.
We recruited 885 working adults (46.4% women). The prevalence of CVD risk in the total population was 18.6%. When compared to the reference group (low CRF), the ORs for CVD risk prevalence after adjustments for lifestyle factors (smoking status, alcohol consumption status, and exercise habits) were 0.42 (95% confidence interval [CI], 0.28-0.63) and 0.29 (95% CI, 0.18-0.45) for the moderate and high groups, respectively.
An inverse association was noted between the JST-evaluated CRF and CVD risk prevalence. JST may be helpful for identifying workers at risk for CVD development.
心肺适能（CRF）是评估心血管疾病（CVD）风险的一个重要因素。我们最近开发了一种新的方法（日本国家职业安全与健康研究所台阶测试[JST]）来评估工人的 CRF；其标准效度已得到研究。然而，在将其应用于工作场所之前，必须确认其与健康风险的相关性。因此，我们旨在确定 JST 评估的 CRF 与日本工人 CVD 风险患病率之间的关联。
为了评估 CRF，成年工作者完成了 JST，包括 3 分钟的踏步运动和 2 分钟的恢复期。通过 JST 测量之日起 1 年内的医疗认证收集 CVD 危险因素和临床病史的数据。根据 JST 值（低、中、高），将参与者分为三组进行多项逻辑回归分析。计算 CVD 风险患病率的比值比（ORs）。
我们招募了 885 名成年工作者（46.4%为女性）。总人群 CVD 风险的患病率为 18.6%。与参考组（低 CRF）相比，调整生活方式因素（吸烟状况、饮酒状况和运动习惯）后，中组和高组 CVD 风险患病率的 OR 分别为 0.42（95%置信区间[CI]，0.28-0.63）和 0.29（95% CI，0.18-0.45）。
JST 评估的 CRF 与 CVD 风险患病率呈负相关。JST 可能有助于识别有 CVD 发展风险的工人。
