Study of Airway Inflammation in Relation to Exercise in Elite Athletes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 66
- 试验地点
- 1
- 主要终点
- Measurement of airway inflammation
研究概览
简要总结
High school elite training programs are today more and more under development in several 'elite sport schools' in Belgium, in order to select and train future elite athletes already at young age. Little is known about the effects of sustained training on the potential development of asthma in adolescents during lung growth. It would be of great importance to be able to select the individuals at risk to develop exercise-induced asthma, already at the start of their enrollment in the 'elite sport school. This would allow physicians to follow their lung function parameters very closely and regularly; and, if necessary, start treatment early after the first signs of exercise-induced asthma.
详细描述
Competitive swimmers, competitive indoor athletes and control individuals performing sports at a recreational level will be recruited for the study.
They will perform a sport-specific training (swimmers and controls: swimming for 90 minutes, indoor athletes: basketball or volleyball for 90 minutes)
Baseline measurements:
- Airway inflammation upper and lower airways will be assessed by collection of nasal fluid (nasal sponge will be inserted in nostril for 5 minutes), Fraction of exhaled Nitric Oxide measurement and sputum induction.
- Upper and lower airway symptoms will be assessed by questionnaires (SinoNasal Outcome Measure-22, Visual Analogue Score, Asthma Symptom Score and Juniper Score)
- Allergy will be assessed by skin prick test (on skin) and immunocap test (in blood, 1 tube of 10 ml).
- Lung function and nasal patency will be measured by spirometry and Peak Nasal Inspiratory Flow measurement.
- Exercise induced bronchoconstriction will be assessed by eucapnic voluntary hyperventilation test.
Measurements immediately after training:
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
- 14 Years 至 25 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Performing sports at national or international level (swimmers and indoor athletes)
排除标准
- •Performing sport at recreational level (not more than 4 hours/week for healthy individuals)
结局指标
主要结局
Measurement of airway inflammation
时间窗: Baseline, immediately after and 24 hours after sport-specific training
Airway inflammation upper and lower airways will be assessed by collection of nasal fluid (nasal sponge will be inserted in nostril for 5 minutes), Fraction of exhaled Nitric Oxide measurement and sputum induction.
次要结局
- Measurement of exercise induced bronchoconstriction(baseline)
研究者
Dominque Bullens
prof dr
Universitaire Ziekenhuizen KU Leuven