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Immediate, Residual, and Cumulative Effects of Fartlek, Hill Circuit, and Roll-On Training in Long-Distance Runners
Sponsor: Debre Markos University
Summary
This randomized controlled trial will compare Fartlek, hill circuit, and roll-on training in well-trained long-distance runners. Twenty-one eligible runners will be randomly assigned to one of three training groups and will complete a 12-week intervention comprising 24 prescribed training sessions. The study will evaluate immediate responses to conditioning, 24-hour recovery responses, and cumulative changes in running performance, aerobic fitness, and training-related responses. Outcomes will include heart rate, blood lactate concentration, rating of perceived exertion, delayed-onset muscle soreness, recovery and wellness indicators, internal training load, 5-km time-trial performance, and VO₂max. The findings will provide evidence regarding the comparative responses to these three conditioning modalities in well-trained long-distance runners.
Official title: Immediate, Residual, and Cumulative Effects of Fartlek, Hill Circuit, and Roll-On Training Modalities: A Comprehensive Examination of Conditioning in Long-Distance Runners
Key Details
Gender
MALE
Age Range
18 Years - 25 Years
Study Type
INTERVENTIONAL
Enrollment
21
Start Date
2026-09-21
Completion Date
2026-11-26
Last Updated
2026-08-25
Healthy Volunteers
Yes
Conditions
Interventions
Fartlek training
A structured variable-intensity running intervention administered for 12 weeks to trained long-distance runners. Each prescribed session includes standardized warm-up and cool-down periods, alternating faster and slower running at prescribed intensities, and prescribed recovery periods. Running duration, intensity, repetitions, recovery intervals, and workload progression are standardized according to the study protocol. Training sessions are supervised, and exercise intensity is monitored using heart rate, rating of perceived exertion, running pace, and prescribed workload.
Hill Circuit
A structured hill-running and circuit-based training intervention administered for 12 weeks to trained long-distance runners. Each prescribed session includes standardized warm-up and cool-down periods, repeated uphill running bouts, running-based circuit exercises, and prescribed recovery intervals. Hill gradient, running duration, repetitions, exercise intensity, recovery intervals, and workload progression are standardized according to the study protocol. Exercise intensity is monitored using heart rate, rating of perceived exertion, running pace, and prescribed workload.
Roll-On
A structured progressive running intervention administered for 12 weeks to trained long-distance runners. Each prescribed session includes standardized warm-up and cool-down periods, controlled running with planned gradual increases and decreases in running speed, and prescribed recovery periods where applicable. Running duration, speed progression, intensity, repetitions, recovery intervals, and workload progression are standardized according to the study protocol. Exercise intensity is monitored using heart rate, rating of perceived exertion, running pace, and prescribed workload.