HIIT (generic)
At least one paper behind this review states what this option was measured against. That is not a ranking, and this option carries no evidence profile of its own.
- short intervalCardio & Endurance · 41 papers put it here (34 stated, 7 inferred)
- sprint intervalCardio & Endurance · 7 papers put it here (4 stated, 3 inferred)
- continuous vigorousCardio & Endurance · 5 papers put it here (4 stated, 1 inferred)
- long intervalCardio & Endurance · 10 papers put it here (9 stated, 1 inferred)
- continuous moderateCardio & Endurance · 1 paper put it here (inferred by the extraction, not stated in the paper)
Alternating periods of intensive aerobic exercise with active or passive recovery. High-intensity periods involve high cardiac demand near maximum pumping capacity and VO2max. Sessions are shorter than MICT, aiming to equalize energy expenditure based on expected heart rate levels.
Should Heartbeats/Training Session Be Considered When Comparing the Cardiovascular Benefits of High-Intensity Interval Aerobic and Moderate-Intensity Continuous Training? A Critical Appraisal15-s efforts at 100% maximal aerobic power, interspersed with 15-s active recovery at 60W.
High-intensity interval training with blood-flow restriction enhances sprint and maximal aerobic power in male endurance athletes.Work-to-rest ratios adjusted to maintain intensity at 90-95% HRmax; intensity targets based on HRmax.
Effects of sprint interval training compared to high intensity interval training on repeated sprint capacity and sport-specific performance in college-aged male tennis playersIntervals at 100% of maximum aerobic velocity (MAV) with rest intervals at 50% of MAV, using a 30-s work-to-rest ratio. Warm-up: 10 minutes of light jogging and dynamic stretching. Cool-down: 5 minutes of static stretching.
Exercise-induced changes in insulin sensitivity, atherogenic index of plasma, and CTRP1/CTRP3 levels: the role of combined and high-intensity interval training in overweight and obese women30 seconds of running at 100% of MAV, followed by 30 seconds of active recovery at 50% of MAV.
Continuous Moderate-Intensity but Not High-Intensity Interval Training Improves Immune Function Biomarkers in Healthy Young Men.15 bouts of 30 seconds at 90-95% of maximal heart rate, followed by 60 seconds of recovery at 50-55% of baseline VO2max. Warm-up: 5 minutes at 50-60% of maximal heart rate. Cool-down: 3 minutes at 40-50% of maximal heart rate.
Effects of a high-intensity interval training program versus a moderate-intensity continuous training program on maximal oxygen uptake and blood pressure in healthy adults: study protocol for a randomized controlled trialFour 4-minute efforts at 90-95% of peak heart rate (HRpeak) interspersed with 3 minutes of active recovery at 50-60% of HRpeak. Warm-up: 5 minutes at 50% of HRpeak.
Effects of High-Intensity Interval Training vs. Sprint Interval Training on Anthropometric Measures and Cardiorespiratory Fitness in Healthy Young WomenConsisted of 3-7 repetitions of 3 minutes at 100% VO2peak, followed by 1.5 minutes at 50% VO2peak, on a treadmill.
Effectiveness of high-intensity interval training for weight loss in adults with obesity: a randomised controlled non-inferiority trial
Measured in duration — derived from the review's own dose_and_time prose.
Intervals at 100% MAV with rest intervals at 50% MAV, 30-s work-to-rest ratio, 4-6 sets, 4-6 repetitions per set, 5 minutes rest between sets, 3 sessions per week, total program length: 8 weeks
Exercise-induced changes in insulin sensitivity, atherogenic index of plasma, and CTRP1/CTRP3 levels: the role of combined and high-intensity interval training in overweight and obese women7.5 min at 90-95% of maximal heart rate, 14 min recovery, total session time 21.5 min, 3 sessions per week, 8 weeks.
Effects of a high-intensity interval training program versus a moderate-intensity continuous training program on maximal oxygen uptake and blood pressure in healthy adults: study protocol for a randomized controlled trial4 bouts of 4-min efforts at 90–95% of peak heart rate interspersed with 3 min of active recovery; 33 min per session; 3 sessions per week; 99 min per week; 8 weeks
Effects of High-Intensity Interval Training vs. Sprint Interval Training on Anthropometric Measures and Cardiorespiratory Fitness in Healthy Young Womenfrequent, shorter sessions (<60 minutes) (no specific dose details)
Editorial: Physical exercise and diabetes: exploring the relationship and impact on health outcome35 minutes (range: 31.7 to 35.6 minutes) 105 minutes (range: 95.1 to 106.8 minutes)
Effectiveness of high-intensity interval training for weight loss in adults with obesity: a randomised controlled non-inferiority trial24 minutes per session (10 x 1-minute bouts with 1-minute rest), one session
Unpacking the debate: A qualitative investigation of first-time experiences with interval exercise- Duration: Minimum of 4 weeks, typically 3 months, with some >3 months - Exercise time per session: HIIT: 9-54 minutes, MICT: 15-60 minutes - Sessions per week: 3 times/week (19 studies), >3 times/week (9 studies), once per week (1 study) - Weekly minutes: Not explicitly stated, but can be calculated from session duration and frequency
Effect of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Fat Loss and Cardiorespiratory Fitness in the Young and Middle-Aged a Systematic Review and Meta-Analysis4-minute warm-up + 8 bouts of 20 seconds at 130% vV[Combining Dot Above]O2max with 10-second passive recovery; 3 sessions/week; 16 weeks Similar protocol to HIIT-T but with calisthenics exercises at all-out intensity; 3 sessions/week; 16 weeks
Whole-Body High-Intensity Interval Training Induce Similar Cardiorespiratory Adaptations Compared With Traditional High-Intensity Interval Training and Moderate-Intensity Continuous Training in Healthy Men
Equipment is a property of the movement and is authored, never derived from the evidence corpus (docs/research/round2/ROUND2_KNOWN_CORRECTIONS.md §1). This option resolves to no catalogue exercise, so nothing has authored it yet.
Requires tolerance for high intensity.
Editorial: Physical exercise and diabetes: exploring the relationship and impact on health outcomeRequires a certain level of physical fitness or tolerance for high intensity; may not be suitable for individuals without a training foundation.
Comparative efficacy of exercise training modes on systemic metabolic health in adults with overweight and obesity: a network meta-analysis of randomized controlled trialsTolerance for high intensity; ability to commit to regular exercise over an extended period; endurance for short to moderate exercise sessions; ability to manage recovery between high-intensity intervals.
Effect of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Fat Loss and Cardiorespiratory Fitness in the Young and Middle-Aged a Systematic Review and Meta-AnalysisRunning experience or tolerance for high-intensity exercise. Good overall fitness and ability to perform high-intensity bodyweight exercises.
Whole-Body High-Intensity Interval Training Induce Similar Cardiorespiratory Adaptations Compared With Traditional High-Intensity Interval Training and Moderate-Intensity Continuous Training in Healthy Men
Work-to-rest ratios were adjusted to maintain intensity at 90-95% HRmax.
Effects of sprint interval training compared to high intensity interval training on repeated sprint capacity and sport-specific performance in college-aged male tennis playersIntervals at 100% of MAV with rest intervals at 50% of MAV, 30-s work-to-rest ratio, 4-6 sets, 4-6 repetitions per set, 5 minutes rest between sets.
Exercise-induced changes in insulin sensitivity, atherogenic index of plasma, and CTRP1/CTRP3 levels: the role of combined and high-intensity interval training in overweight and obese women30 seconds at 100% MAV, 30 seconds active recovery at 50% MAV
Continuous Moderate-Intensity but Not High-Intensity Interval Training Improves Immune Function Biomarkers in Healthy Young Men.15 bouts of 30 seconds at 90-95% of maximal heart rate, followed by 60 seconds of recovery. Total session time: 21.5 minutes (7.5 minutes at high intensity, 14 minutes of recovery). Incline: Constant 10%.
Effects of a high-intensity interval training program versus a moderate-intensity continuous training program on maximal oxygen uptake and blood pressure in healthy adults: study protocol for a randomized controlled trial3-7 repetitions of 3 minutes at 100% VO2peak interspersed by 1.5 minutes at 50% VO2peak.
Effectiveness of high-intensity interval training for weight loss in adults with obesity: a randomised controlled non-inferiority trial10 cycles of 45 seconds at 80-85% of HRmax with 90 seconds active recovery. 9 cycles of 45 seconds at 80-85% of HRmax with 90 seconds active recovery.
Effects of a Cycling versus Running HIIT Program on Fat Mass Loss and Gut Microbiota Composition in Men with Overweight/Obesity
- Individuals with certain health conditions such as obesity, diabetes, and fibromyalgia may need to exercise caution. - Inactive individuals may find HIIT protocols hard to tolerate, suggesting a need for supervision. - There is a potential risk of sudden high exercise intensity, requiring caution for those not accustomed to such intensity.
Effect of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Fat Loss and Cardiorespiratory Fitness in the Young and Middle-Aged a Systematic Review and Meta-Analysis- Individuals with cardiovascular or haematological contraindications should not participate in BFR. - The study followed ethical guidelines and required medical screening and informed consent. - Uniform BFR cuff pressure and shared cuffs may pose risks due to inconsistent occlusion.
Acute physiological responses of blood flow restriction between high‐intensity interval repetitions in trained cyclists- Potential risk of overreaching and overtraining, which can lead to decreased performance and increased injury risk. - Traditional periodization may negatively affect horizontal jump performance, indicating a caution for athletes focusing on this aspect. - No specific contraindications or cautions are mentioned for certain groups of people (e.g., age, health status), but the study focuses on amateur triathletes.
Effectiveness of Reverse vs. Traditional Linear Training Periodization in Triathlon- Increased risk of adverse cardiovascular events during vigorous intensity exercise, particularly for those not habitually active. - Limited evidence base for the safety of HIIT. - Higher cardiovascular event rate with HIIT compared to moderate intensity exercise in a controlled cardiac rehabilitation setting. - Need for more safety data before recommending HIIT for unscreened and unmonitored individuals.
High-intensity interval training: key data needed to bridge the gap from laboratory to public health policy
Minimal or home (can be performed with bodyweight exercises or minimal equipment like jump rope)
Editorial: Physical exercise and diabetes: exploring the relationship and impact on health outcomeMinimal or home (e.g., jump rope, bodyweight circuits), can be done at home or outdoors.
Comparative efficacy of exercise training modes on systemic metabolic health in adults with overweight and obesity: a network meta-analysis of randomized controlled trialsMinimal or home (body weight exercises, stair climbing), anywhere (outdoors, home)
Unpacking the debate: A qualitative investigation of first-time experiences with interval exerciseMinimal or home (jump rope, bike), anywhere (home, outdoors)
Effect of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Fat Loss and Cardiorespiratory Fitness in the Young and Middle-Aged a Systematic Review and Meta-Analysis
- Sprint interval training (SIT) — a paper measured this option against it“Sprint Interval Training (SIT” · Jing Fan, Ke Sun, Xu Liu, Tian-qi Zhu, Yue Li (2025) · 10.1371/journal.pone.0332705
- Running / jogging — a paper called these interchangeable
- Treadmill walking/running — a paper called these interchangeable
- Stair climbing — a paper called these interchangeable
- Cycling — a paper measured this option against it“Cycling HIIT” · Annaëlle Couvert, Leslie Goumy, F. Maillard et al. (2024) · 10.1249/MSS.0000000000003376
- Running / jogging — a paper measured this option against it“Running HIIT” · Annaëlle Couvert, Leslie Goumy, F. Maillard et al. (2024) · 10.1249/MSS.0000000000003376
- Treadmill walking/running — a paper measured this option against it“Running HIIT” · Annaëlle Couvert, Leslie Goumy, F. Maillard et al. (2024) · 10.1249/MSS.0000000000003376
- Moderate continuous (MICT) — a paper measured this option against it“Moderate-Intensity Continuous Training (MICT” · Zhicheng Guo, Meng Li, Jian-guang Cai, Weiqi Gong, Yin Liu, Zengming Liu (2023) · 10.3390/ijerph20064741
- Swimming — a paper called these interchangeable“as well as swimming technical ability and performance” · V. J. Clemente-Suárez, D. Ramos-Campo (2019) · 10.3390/ijerph16152807
- Rowing — a paper measured this option against it“Traditional HIIT using rowing (R-HIIT” · Elise C. Brown, T. Hew-Butler, C. Marks, Scotty J Butcher, Myung D Choi (2018) · 10.1089/biores.2018.0032
- Walking — a paper measured this option against it“The Wisloff's Group 4 × 4 protocol is compared against brisk walking” · R. Winett, A. Ogletree (2019) · 10.1093/geroni/igz020
- Brisk walking — a paper measured this option against it“The Wisloff's Group 4 × 4 protocol is compared against brisk walking” · R. Winett, A. Ogletree (2019) · 10.1093/geroni/igz020
- Walking — a paper called these interchangeable“brisk walking” · B. Cheema, T. Davies, M. Stewart, S. Papalia, E. Atlantis (2015) · 10.1186/2052-1847-7-3
- Brisk walking — a paper called these interchangeable“brisk walking” · B. Cheema, T. Davies, M. Stewart, S. Papalia, E. Atlantis (2015) · 10.1186/2052-1847-7-3
- Cross-country skiing — a paper measured this option against it
- Tabata — a paper measured this option against it“Tabata training (a form of HIIT) is” · Adriana Ljubojević, Nikolina Gerdijan, R. Pavlović, Lejla Šebić (2023) · 10.15561/26649837.2023.0303
A paper measuring one option against another does not make the two interchangeable, and it does not say which to choose. These are listed as what the papers did, and nothing here proposes a substitution.