An interventional study of Sprint Interval Training in Sedentary Lifestyle and Cardiorespiratory Fitness, sponsored by Sezer Taştan. Completed at 1 site in Turkey (Türkiye). Open to participants aged 20 Years to 25 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-05-22.
Sponsored by Sezer Taştan · Not applicable, Interventional, and Other
This randomized controlled trial evaluated the effects of a 6-week supervised sprint interval training program on cardiorespiratory fitness in healthy sedentary young adults. Forty participants aged 20 to 25 years were randomly assigned to either a sprint interval training group or a control group. The sprint interval training group completed supervised cycle-ergometer sessions three times per week for 6 weeks, while the control group maintained their usual sedentary routine. The primary outcome was maximal oxygen uptake (VO2max). Secondary outcomes included resting heart rate and 6-minute walk test distance. The study aimed to determine whether a short-term, time-efficient sprint interval training program could improve cardiovascular capacity and functional exercise performance in sedentary young adults.
This study was designed as a randomized controlled pre-test and post-test intervention study. Healthy sedentary adults aged 20 to 25 years were enrolled after ethics approval and written informed consent. Participants were randomly allocated in a 1:1 ratio to either a supervised sprint interval training group or a control group.
The sprint interval training group performed supervised exercise sessions on a cycle ergometer three times per week for 6 weeks. Each session included a 5-minute warm-up, followed by repeated 30-second all-out sprint bouts with active recovery periods. The number of sprint repetitions was progressively increased during the intervention period. The control group maintained their usual sedentary lifestyle and did not receive an additional exercise program.
Outcome measurements were performed before and after the intervention. The primary outcome was VO2max, assessed using a maximal exercise test on a cycle ergometer with respiratory gas analysis. Secondary outcomes were resting heart rate and 6-minute walk test distance. Adherence and adverse events were monitored throughout the study period.
332 studies on the registry are indexed under Sedentary Behavior; 155 are open to participants now.
This study's enrollment of 40 is below the median of 70 across 287 interventional studies indexed under Sedentary Behavior.
Browse Sedentary Behavior studies →This is the only study on the registry with Sezer Taştan as lead sponsor.
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Exclusion Criteria:
Participants in this group completed supervised sprint interval training sessions on a cycle ergometer three times per week for 6 weeks.
Behavioral: Sprint Interval Training
Participants in this group maintained their usual sedentary routine and did not receive an additional exercise program during the study period.
The sprint interval training intervention consisted of supervised cycle-ergometer sessions performed three times per week for 6 weeks. Each session included a 5-minute warm-up at 50% VO2max, followed by 4 to 6 repetitions of 30-second all-out sprint bouts on a Monark 894E cycle ergometer, with 4-minute active recovery periods between sprints. The number of sprint repetitions was progressively increased from 4 repetitions in the first two weeks to 6 repetitions in the following four weeks.
Also known as: SIT
Change in Maximal Oxygen Uptake (VO2max)
VO2max was assessed using a maximal exercise test on a cycle ergometer with breath-by-breath respiratory gas analysis. VO2max values were recorded in ml/kg/min before and after the 6-week intervention.
Time frame: Baseline and 6 weeks
Change in Resting Heart Rate
Resting heart rate was measured in the morning after 10 minutes of seated rest using a heart rate monitor. Values were recorded in beats per minute before and after the 6-week intervention.
Time frame: Baseline and 6 weeks
Change in 6-Minute Walk Test Distance
Functional exercise capacity was assessed using the 6-minute walk test. The total distance covered in 6 minutes was recorded in meters before and after the 6-week intervention.
Time frame: Baseline and 6 weeks
This study is completed, as verified in May 2026. You cannot join it, but the record below documents what was studied.
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