Related Experiment Video
Updated: Oct 16, 2025

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
Published on: February 22, 2022
Effects of High-Intensity Interval Training on Sleep: A Systematic Review and Meta-Analysis
Leizi Min1, Dizhi Wang1, Yanwei You1
1Division of Sport Science & Physical Education, Tsinghua University, Beijing 100084, China.
Objectives:
To use a quantitative approach to examine the effects of high-intensity interval training (HIIT) interventions on sleep for adults.
Methods:
PubMed, Ebsco, Web of Science, Cochrane Central Register of Controlled Trials, the China National Knowledge Infrastructure, and Wanfang Data were searched from their inception to December 2020. Intervention studies with a control group that examined the effects of HIIT interventions on sleep were included in this meta-analysis. The risk of bias was assessed using the tool provided by the Cochrane Handbook for Systematic Reviews of Interventions. Effect sizes (ESs), calculated as weighted mean difference (WMD) and standardized mean difference (SMD), were used to examine the effects of objective outcomes and subjective outcomes separately.
Results:
A large increase in sleep quality (SQ) reflected by the Pittsburgh Sleep Quality Index global scores [WMD = -0.90, 95%CI (-1.72, -0.07), p = 0.03, n = 8] and a small-to-medium favorable effect on sleep efficiency (SE) [SMD = 0.43, 95%CI (0.20, 0.65), p = 0.0002, n = 10] were found after HIIT intervention. In addition, sub-analyses results suggest that ESs were moderated by the type, duration and frequency, as well as the length of the HIIT intervention.
Conclusions:
HIIT may be a promising way to improve overall subjective SQ and objective SE. PROSPERO, protocol registration number: CRD42021241734.
More Related Videos
09:19Short Session High Intensity Interval Training and Treadmill Assessment in Aged Mice
Published on: February 2, 2019
07:40Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
Published on: October 10, 2019
Related Concept Videos
Insufficient Sleep and Sleep Deprivation
Sleep deprivation is a more severe form of sleep loss...
Substance Use Disorders Affecting Sleep
Understanding the concepts of physical dependence,...
Management of Insomnia
Insomnia
Multiple factors contribute...
Understanding Sleep
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...