在 CARDIA 研究中，职业和休闲时间体力活动与心肺功能的 13 年相关性。
Thirteen-Year Associations of Occupational and Leisure-Time Physical Activity with Cardiorespiratory Fitness in CARDIA.
机构信息
Department of Epidemiology and Biostatistics, West Virginia University School of Public Health, Morgantown, WV.
Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC.
出版信息
Med Sci Sports Exerc. 2023 Nov 1;55(11):2025-2034. doi: 10.1249/MSS.0000000000003237. Epub 2023 Jun 18.
PURPOSE
Differential effects on fitness are hypothesized to contribute to the opposing health effects of leisure-time physical activity (LTPA) and occupational physical activity (OPA). As such, this study examined cross-sectional and longitudinal associations of fitness with LTPA and OPA.
METHODS
This study examined fitness associations with LTPA and OPA across 13 yr in the Coronary Artery Risk Development in Young Adults study (years 7 (baseline), 10, 15, and 20 (follow-up) examinations). Fitness was measured at baseline and follow-up via symptom-limited maximal graded exercise test (GXT) duration (in seconds), whereas LTPA and OPA were self-reported during each examination. Baseline and follow-up cross-sectional associations of LTPA (low, medium, high) and OPA (0, 1-6, and ≥6 months with OPA) with fitness were examined using linear regression. Longitudinal linear regression examined associations between 13-yr LTPA (low, medium, or high) and OPA (no, decreasing, or increasing) trajectories with fitness at follow-up, adjusted for baseline values. All models adjusted for center, sex, race, age, education, smoking history, alcohol intake, resting blood pressure, diabetes status, and body mass index. Stratified analyses examined associations by sex (female/male), race (Black/White), and LTPA groups.
RESULTS
Compared with low, medium, and high LTPA were positively associated with fitness in all analyses ( P < 0.001). Reporting 1-6 or ≥6 months with OPA was negatively associated with fitness in cross-sectional follow-up models ( β = -15.6 and -15.4, respectively; P ≤ 0.01). Longitudinally, those with increasing OPA had lower follow-up fitness compared with no OPA ( β = -16.41, P < 0.01). Negative associations of OPA with fitness were not meaningfully different across sex and race groups. Significant LTPA-OPA interactions were observed ( P < 001).
CONCLUSIONS
Physical activity research and public health promotion should consider domain-specific associations on cardiovascular health.
目的
人们假设，适应能力的差异会对休闲体力活动（LTPA）和职业体力活动（OPA）的相反健康影响产生影响。因此，本研究检查了适应能力与 LTPA 和 OPA 的横断面和纵向关联。
方法
本研究在年轻人冠状动脉风险发展研究（CARDIA）中，横跨 13 年（第 7 年（基线）、第 10 年、第 15 年和第 20 年（随访）检查），检查了适应能力与 LTPA 和 OPA 的关联。在基线和随访时，通过症状限制的最大分级运动试验（GXT）持续时间（以秒为单位）测量适应能力，而在每次检查时，通过自我报告来测量 LTPA 和 OPA。使用线性回归，检查了 LTPA（低、中、高）和 OPA（0、1-6 个月和≥6 个月的 OPA）与适应能力的基线和随访时的横断面关联。使用纵向线性回归，调整基线值后，检查了 13 年 LTPA（低、中或高）和 OPA（无、减少或增加）轨迹与随访时适应能力的关联。所有模型均调整了中心、性别、种族、年龄、教育程度、吸烟史、饮酒量、静息血压、糖尿病状况和体重指数。分层分析按性别（女性/男性）、种族（黑人/白人）和 LTPA 组检查了关联。
结果
与低、中、高 LTPA 相比，所有分析中 LTPA 均与适应能力呈正相关（P<0.001）。报告有 1-6 个月或≥6 个月的 OPA 与横断面随访模型中的适应能力呈负相关（β=-15.6 和-15.4，分别；P≤0.01）。纵向分析显示，与没有 OPA 的人相比，有增加的 OPA 的人在随访时的适应能力较低（β=-16.41，P<0.01）。OPA 与适应能力的负相关在性别和种族群体中没有明显差异。观察到 LTPA-OPA 交互作用具有统计学意义（P<0.001）。
结论
体力活动研究和公共卫生促进应考虑对心血管健康的特定领域关联。
Zotero 插件