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This study aims to investigate the effects of a 6-week high-intensity interval training (HIIT) intervention on physical fitness, cardiorespiratory capacity (VO2max), and sleep quality among sedentary male college students. Through a randomized controlled trial, we seek to examine whether HIIT, as a time-efficient exercise modality, can effectively improve these health-related outcomes in young adults who maintain predominantly sedentary lifestyles. This research will provide evidence-based insights into the effectiveness of HIIT as a potential intervention strategy to address the physical and physiological consequences of prolonged sitting behavior among university students.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| High-intensity interval training (HIIT) group | Experimental | A 6-week HIIT exercise plan (running). Duration: Each session consists of 10 x 1-minute high-intensity bouts interspersed with 10 x 1-minute recovery periods. Adding the 3-minute warmup and 3-minute cool-down, each session totals approximately 26 minutes. This protocol is followed for 6 weeks. Intensity: High-intensity bouts are performed at 80-90% of HRmax (RPE 15-18). Recovery periods are at 40-50% of HRmax (RPE 11-13). Warm-up and cool-down are at 50% HRmax (RPE 11-13). Modality: Running, jogging, or brisk walking, either on a treadmill or outdoors. Supervision: The first three sessions are supervised in a laboratory setting. Subsequent sessions are unsupervised and performed at home with heart rate monitoring and remote data tracking via Polar Flow for Coach. |
|
| Control | No Intervention | Keep the usual life style without intervention. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| High intensity interval training | Other | A 6-week HIIT exercise plan (running). Duration: Each session consists of 10 x 1-minute high-intensity bouts interspersed with 10 x 1-minute recovery periods. Adding the 3-minute warmup and 3-minute cool-down, each session totals approximately 26 minutes. This protocol is followed for 6 weeks. Intensity: High-intensity bouts are performed at 80-90% of HRmax (RPE 15-18). Recovery periods are at 40-50% of HRmax (RPE 11-13). Warm-up and cool-down are at 50% HRmax (RPE 11-13). Modality: Running, jogging, or brisk walking, either on a treadmill or outdoors. Supervision: The first three sessions are supervised in a laboratory setting. Subsequent sessions are unsupervised and performed at home with heart rate monitoring and remote data tracking via Polar Flow for Coach. |
| Measure | Description | Time Frame |
|---|---|---|
| VO2max | Progressive Aerobic Cardiovascular Endurance Run 20-m (measured in laps) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Sleep Quality | Pittsburgh Sleep Quality Index (PSQI) (scored from 0 to 21, with higher scores indicating worse sleep quality) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Handgrip | Handgrip dynamometer (measured in kilograms) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Core strength | Plank test (measured in second) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Balance | Unipedal stance test (measured in second) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Agility | Agility T-test (measured in second) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Flexibility | Sit and Reach Test | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Body composition (measured in centimeter) |
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| Measure | Description | Time Frame |
|---|---|---|
| Carbohydrate Intake | Daily carbohydrate consumption measured by validated 3-day food diary (measured in grams/day) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Fat Intake |
Inclusion Criteria:
Exclusion Criteria:
To control for sex-specific variations in exercise responses, this study was only restricted to biological male university students.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| SSPE, The Chinese University of Hong Kong | Hong Kong | None Selected | Hong Kong |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 39019997 | Background | Song X, Cui X, Su W, Shang X, Tao M, Wang J, Liu C, Sun Y, Yun H. Comparative effects of high-intensity interval training and moderate-intensity continuous training on weight and metabolic health in college students with obesity. Sci Rep. 2024 Jul 17;14(1):16558. doi: 10.1038/s41598-024-67331-z. | |
| 30509862 | Background |
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| ID | Term |
|---|---|
| D000072696 | High-Intensity Interval Training |
| ID | Term |
|---|---|
| D064797 | Physical Conditioning, Human |
| D015444 | Exercise |
| D009043 | Motor Activity |
| D009068 | Movement |
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|
Bioelectrical impedance analysis (BIA) device (MC-780MA) |
| Baseline (pre-intervention) and immediately after 6-week intervention completion |
Daily fat consumption measured by a validated 3-day food diary (measured in grams/day)
| Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Protein Intake | Daily protein consumption measured by a validated 3-day food diary (measured in grams/day) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Physical Activity Level | International Physical Activity Questionnaire (IPAQ) long form (measured in MET-minutes/week, range: 0 to no upper limit, with higher scores indicating higher levels of physical activity) | Baseline (pre-intervention) and immediately after 6-week intervention completion |
| Eather N, Riley N, Miller A, Smith V, Poole A, Vincze L, Morgan PJ, Lubans DR. Efficacy and feasibility of HIIT training for university students: The Uni-HIIT RCT. J Sci Med Sport. 2019 May;22(5):596-601. doi: 10.1016/j.jsams.2018.11.016. Epub 2018 Nov 24. |
| 41957758 | Derived | Tang D, Gou P, Liu S, Zhang X, Li D, Liu J. Effects of unsupervised campus HIIT on fitness and sleep in sedentary male students: a randomized controlled trial. BMC Public Health. 2026 Apr 9;26(1):1635. doi: 10.1186/s12889-026-27310-7. |
| D009142 |
| Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |