Clinical Trial

Effects of Polarized and Threshold Intensity Distribution Models on Race Time and Body Composition in Recreational Runners Aged 20-45 Years.

Enrolling by Invitation

Summary

This study aims to compare the effects of two intensity distribution training (TID) models-polarized and threshold-on 5-km race time and body composition in recreational runners aged 20 to 45 years. Participants will be randomly assigned to one of two groups and will complete a 12-week structured training program. The primary outcome will be 5-km race time, while secondary outcomes will include changes in body composition. Assessments will be conducted before and after the intervention period.

Protocol Amendment History 1 amendment

This ClinicalTrials.gov record has been amended once since 2026-03-25.

Trial Details

NCT Number	NCT07498608
Lead Sponsor	Universidad Pedagogica Nacional, Colombia
Conditions	Physical Activity, Physical Activity Intensity, Physical Activity in Adults, Running, Running Performance, Running Endurance
Enrollment	20 participants
Start Date	2026-03-16
Primary Completion	2026-04-27 (estimated)
Study Completion	2026-07-05 (estimated)
Updated on ClinicalTrials.gov	2026-05-01