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首页> 外文期刊>Medicine and science in sports and exercise >Exercise dose, exercise adherence, and associated health outcomes in the TIGER study
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Exercise dose, exercise adherence, and associated health outcomes in the TIGER study

机译：TIGER研究中的运动剂量，运动依从性和相关健康结果

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PURPOSE: To effectively evaluate activity-based interventions for weight management and disease risk reduction, objective and accurate measures of exercise dose are needed. This study examined cumulative exercise exposure defined by HR-based intensity, duration, and frequency as a measure of compliance with a prescribed exercise program and a predictor of health outcomes. METHODS: One thousand one-hundred fifty adults (21.3 ± 2.7 yr) completed a 15-wk exercise protocol consisting of 30 min·d, 3 d·wk, at 65%-85% maximum HR reserve. Computerized HR monitor data were recorded at every exercise session (33,473 valid sessions). To quantify total exercise dose, duration for each session was adjusted for average exercise intensity (%HR reserve) to create a measure of intensity minutes for each workout, which were summed over all exercise sessions to formulate an HR physical activity score (HRPAS). Regression analysis was used to examine the relation between HRPAS and physiological responses to exercise training. Compliance with the exercise protocol based on achievement of the minimum prescribed HRPAS was compared with adherence defined by attendance. RESULTS: On the basis of HRPAS, 868 participants were empirically defined as compliant, and 282 were noncompliant. HRPAS-based and attendance-based classifications of compliance and adherence differed in approximately 9% of participants. Higher HRPAS was associated with significant positive changes in body mass (P < 0.001), body mass index (P < 0.001), waist and hip circumferences (P < 0.001), percent body fat (P < 0.001), systolic blood pressure (P < 0.011), resting HR (P < 0.003), fasting glucose (P < 0.001), and total cholesterol (P < 0.02). Attendance-based adherence was associated with body mass, hip circumference, percent body fat, resting HR, and cholesterol (P < 0.05). CONCLUSIONS: The HRPAS is a quantifiable measure of exercise dose associated with improvement in health indicators beyond that observed when adherence is defined as session attendance.
机译：目的：为了有效地评估基于活动的干预措施，以减轻体重，降低疾病风险，需要客观，准确地衡量运动剂量。这项研究检查了由基于HR的强度，持续时间和频率定义的累积运动暴露，以衡量是否遵守处方运动计划和健康结果的预测指标。方法：一百一百五十名成年人（21.3±2.7岁）完成了一项15周的锻炼方案，包括30 min·d，3 d·wk，最大心率储备为65％-85％。在每次锻炼（33,473次有效锻炼）时记录计算机化的HR监测数据。为了量化总运动剂量，针对平均运动强度（％HR储备）调整每次疗程的持续时间，以创建每次锻炼的强度分钟的量度，将其在所有运动疗程中相加以制定HR身体活动评分（HRPAS）。回归分析用于检验HRPAS与运动训练生理反应之间的关系。将基于达到最低规定的HRPAS的锻炼方案的依从性与出勤定义的依从性进行比较。结果：根据HRPAS，根据经验将868名参与者定义为合规，而282名参与者为不合规。基于HRPAS和基于出勤的依从性和依从性分类在大约9％的参与者中有所不同。 HRPAS升高与体重（P <0.001），体重指数（P <0.001），腰围和臀围（P <0.001），体脂百分比（P <0.001），收缩压（P <0.011），静息心率（P <0.003），空腹血糖（P <0.001）和总胆固醇（P <0.02）。基于出勤率的依从性与体重，髋围，体脂百分比，静息心率和胆固醇相关（P <0.05）。结论：HRPAS是可量化的运动剂量，与健康指标的改善相关，超出了将依从性定义为出勤时所观察到的运动量。

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