Effects of Polarized and Threshold Intensity Distribution Models on Race Time and Body Composition in Recreational Runners Aged 20-45 Years: a Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- Enrolling By Invitation
- 发起方
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Primary Objective
研究概览
简要总结
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.
详细描述
This randomized controlled trial will investigate the effects of two different intensity distribution training (TID) models: polarized (POL) and threshold (THR), on race time and body composition in recreational runners.
A total of 40 participants aged between 20 and 45 years will be randomly assigned to either the POL group or the THR group. Both groups will complete a 12-week training intervention. The polarized model will emphasize a high volume of low-intensity training (Zone 1) with small amounts of high-intensity work (Zone 3), while the threshold model will include a greater proportion of training at moderate intensity (Zone 2).
The primary outcome will be 5-km race time measured in minutes/seconds. Secondary outcomes will include body composition variables such as body fat percentage and lean mass.
Assessments will be conducted at baseline and after the 12-week intervention. The study aims to determine whether polarized training produces superior improvements compared to threshold training in recreational runners.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 20 Years 至 45 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age between 20 and 45 years.
- •1 to 3 years of experience.
- •Men's race time between 25:00 and 40:
- •Women's race time between 28:00 and 43:
- •Must reside in Bogotá or surrounding municipalities at an altitude of 2,640 meters above sea level.
- •Must have a GPS device.
排除标准
- •Having a chronic noncommunicable disease.
- •Smoking or drinking alcohol.
- •Having a musculoskeletal injury.
- •Failing to sign the informed consent form.
- •10% attendance rate at training sessions.
研究组 & 干预措施
Control
干预措施: Polarized intensity distribution model (Other)
Experimental
干预措施: Threshold intensity distribution model (Other)
结局指标
主要结局
Primary Objective
时间窗: 12 weeks
Outcome Measure: 5-km race time Description: Time to complete a 5-km run measured in minutes and seconds.
次要结局
- Secondary Objective(12 weeks)
研究者
Jesus Giuliani Martinez Muñoz
Principal investigator
Universidad Pedagogica Nacional, Colombia