Affective Responses to High-Intensity Interval Training

对高强度间歇训练的情感反应

• 批准号: 8494351
• 负责人: Marcus Kilpatrick
• 金额: $ 7.48万
• 依托单位: UNIVERSITY OF SOUTH FLORIDA
• 依托单位国家: 美国
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-05-01 至 2015-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8494351
• 关键词: Acute; Adherence; Adult; Aerobic; Affect; Affective; American; Behavior; Behavioral; Breast; Cancer Control; Central obesity; Characteristics; Colon Carcinoma; Data; Disease; Exercise; Exercise stress test; Exposure to; Fasting; Future; General Population; Goals; Guidelines; Health; Health Benefit; Inflammation; Insulin; Intention; Intervention Studies; Investigation; Life; Life Style; Light Exercise; Link; Literature; Maintenance; Malignant Neoplasms; Measures; Mental Health; Metabolic; Moderate Exercise; Motivation; Obesity; Outcome; Overweight; Perception; Physical Fitness; Physical activity; Physiological Adaptation; Populations at Risk; Prevention strategy; Public Health; Recommendation; Recovery; Relative (related person); Research; Rest; Testing; Time; Training; Weight maintenance regimen; Work; anticancer research; base; cancer prevention; cancer risk; experience; falls; fitness; improved; innovation; modifiable risk; novel; novel strategies; physical conditioning; pleasure; psychologic; public health relevance; response; sedentary; theories

DESCRIPTION (provided by applicant): Physical activity (PA) and weight management have become important cancer prevention strategies. Research indicates that sedentary living and obesity are modifiable risks for many cancers. Thus, innovative strategies that facilitate better understanding of PA behavior to improve cancer control are imperative given the low levels of PA among Americans. A novel approach to PA that yields potent effects on health is high-intensity interval training (HIT), which involves segments of vigorous exercise interspersed with light activity or rest. These sessions are marked by short sprints conducted at near maximal effort for durations up to 60 seconds. HIT, therefore, represents a form of PA that is the polar opposite of low-intensity lifestyle PA. Importantly, several adaptive responses to HIT may be linked with reduced cancer risk including reductions in fasting insulin, abdominal obesity, and inflammation. The short-duration and low-volume characteristics of HIT make it a potentially desirable alternative to long-duration continuous exercise for improving PA levels in the general population, as HIT reduces the often-cited time barrier to PA participation. Research suggests that continuous high intensity PA reduces pleasure, which is likely to reduce long-term behavioral maintenance. However, the tolerability and pleasure associated with brief exposures to high-intensity interval work have not been evaluated. The primary aim of the study is to evaluate the affective and enjoyment responses to acute bouts of HIT and the secondary aim is to test the relationship between affective and enjoyment responses. The general hypothesis of the proposed short duration vigorous PA and may be preferable to continuous moderate PA because of the reduced time commitment. One hundred sedentary, overweight adults will complete a maximal exercise test and four subsequent exercise trials: two continuous (moderate intensity for 30 minutes and vigorous intensity for 20 minutes) and two discontinuous (one-minute interval; vigorous with recovery for 30 minutes and near-maximal with recovery for 20 minutes). Affect and enjoyment will be measured before, during, and after each experimental trial. The project is expected to facilitate future research to determine whether this form of exercise can be maintained long-term within populations at-risk for cancer and other negative outcomes. Such findings would therefore provide information about whether this highly beneficial form of exercise should be encouraged through public health recommendations.

描述（由申请人提供）：体育活动（PA）和体重管理已成为重要的癌症预防策略。研究表明，久坐的生活和肥胖是许多癌症的可修改风险。因此，鉴于美国人中PA的水平较低，必须采取促进对PA行为改善癌症控制的创新策略，以改善癌症的控制。一种对健康产生有效影响的新型PA方法是高强度间隔训练（HIT），涉及剧烈运动散布在光线活动或休息中的片段。这些会话的标志是在60秒钟的时间内以几乎最大的努力进行了短暂的冲刺。因此，命中代表PA的一种形式，与低强度的生活方式PA相反。重要的是，几种对命中的自适应反应可能与降低的癌症风险有关，包括降低禁食胰岛素，腹部肥胖和炎症。 HIT的短期和小体积特征使其成为长期连续锻炼的潜在理想替代方案，以提高普通人群的PA水平，因为HIT降低了经常引用的PA参与时间障碍。研究表明，连续的高强度PA可以减少愉悦感，这可能会减少长期行为维持。但是，尚未评估与高强度间隔工作相关的耐受性和愉悦感。该研究的主要目的是评估对急性打击的情感和享受反应，次要目的是测试情感和享受反应之间的关系。提出的一般假设 由于时间的投入减少，持续时间较短的剧烈PA可能比连续中等PA。一百个久坐的超重成年人将完成一次最大运动测试，然后进行四项随后的运动试验：两个连续的运动试验（中等强度30分钟，强度为20分钟）和两个不连续的（一分钟的间隔；剧烈；恢复30分钟，接近最大的，恢复20分钟）。在每次实验试验之前，期间和之后，将测量情感和享受。预计该项目将促进未来的研究，以确定在癌症和其他负面结果的人群中是否可以长期维持这种运动形式。因此，此类发现将提供有关是否应通过公共卫生建议鼓励这种非常有益的锻炼形式的信息。