Association Between a Winter Pre-season Plyometric Exercise Programme and Performance and Health-related Outcomes in Sprinters: a Prospective Cohort Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 42
- 试验地点
- 1
- 主要终点
- Assessment of changes in winter competitive performance at baseline, after the winter pre-season, and after the competitive season
研究概览
简要总结
Background. Plyometric training is an effective strategy to improve power and performance in sprint-based sports; however, evidence regarding its actual effects in athletes during the winter season and its potential influence on the occurrence of health problems remains limited.
Objective. To analyse the association between participation in a plyometric exercise programme during the winter pre-season and competitive performance, as well as the occurrence of lower-limb health problems in sprinters.
Methods. This will be a prospective observational cohort study with fully online data collection. Federated sprinters or athletes affiliated with athletics clubs will be included. The main exposure will be participation in a plyometric exercise programme (≥2 sessions per week in January). Outcomes will be winter competitive performance (best official time) and lower-limb health problems assessed using the OSTRC-H2 questionnaire. Control variables will include sleep quality (PSQI), internal training load (session-RPE), injury history, and competitive level. Statistical analyses will include linear and logistic regression models adjusted for potential confounders.
Expected results. A positive association is expected between engagement in plyometric training and competitive performance, along with a lower frequency of lower-limb health problems, particularly among athletes with adequate sleep quality and a well-balanced training load.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 16 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age ≥16 years
- •Regular participation in sprint events (60-400 m)
- •Planned participation in winter competitions
- •Membership of an athletics club
- •Provision of digital informed consent
排除标准
- •Recent acute lower-limb injury preventing training
- •Medical contraindication to plyometric training
- •Inability to complete follow-up
- •Low questionnaire completion rate (<70%).
研究组 & 干预措施
Observational group with intervention
Athletes undertaking plyometric training
干预措施: Plyometric training (Other)
Observational group without intervention
Athletes not undertaking plyometric training
干预措施: Training without plyometric exercises (Other)
结局指标
主要结局
Assessment of changes in winter competitive performance at baseline, after the winter pre-season, and after the competitive season
时间窗: Baseline, through study completion, an average of 1 month
Winter competitive performance will be measured using the best official time recorded by each athlete in their main event (60, 100, 200, or 400 metres) during the winter season. The value will be expressed in seconds and will be obtained via self-report in the final questionnaire, together with the competition in which it was achieved. This continuous variable will represent the primary performance outcome.
Assessment of changes in the occurrence of lower-limb health problems at baseline, after the winter pre-season, and after the competitive season
时间窗: Baseline, through study completion, an average of 1 month
The occurrence of lower-limb health problems will be assessed using the Oslo Sports Trauma Research Center Overuse Injury Questionnaire (OSTRC-O), Spanish validated version. Based on the weekly reports, two indicators will be derived: the presence of at least one substantial lower-limb health problem (dichotomous variable: yes/no) and the total number of weeks with any health problem in this location (discrete variable).
次要结局
- Assessment of changes in sleep quality at baseline, after the winter pre-season, and after the competitive season(Baseline, through study completion, an average of 1 month)
- Assessment of changes in the internal training load at baseline, after the winter pre-season, and after the competitive season(Baseline, through study completion, an average of 1 month)
- Assessment of the previous performance at baseline(Baseline)
- Assessment of lower-limb injury history at baseline(Baseline)
研究者
Rubén Cuesta-Barriuso, PhD
Principal Investigator
Universidad Católica San Antonio de Murcia