The 30-15 Intermittent Fitness Test Provides Superior Sport-Specific Sensitivity to Treadmill Testing in Elite Female Footballers
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Maximal Running Speed (MRS)
研究概览
简要总结
This study compares the acute aerobic, metabolic, and threshold-related physiological responses elicited by the 30-15 Intermittent Fitness Test (30-15IFT) and a treadmill-based incremental running test in elite female football players. Using a randomized crossover design, all participants completed both testing protocols with a 48-hour recovery period. Outcomes included maximal oxygen uptake, maximal running speed, heart rate responses, lactate-derived thresholds, metabolic tolerance indices, and recovery markers.
详细描述
Laboratory-based treadmill tests are commonly used to assess aerobic capacity in football players; however, they lack sport-specific characteristics such as intermittent running, accelerations, and changes of direction. The 30-15 Intermittent Fitness Test (30-15IFT) has been proposed as a more ecologically valid field-based alternative.
Twenty-seven elite female football players competing in the Turkish Women's Super League completed both the 30-15IFT and a standardized treadmill incremental protocol in a randomized crossover design. Tests were separated by 48 hours and performed under controlled environmental conditions. Physiological variables including VO₂max, maximal running speed, maximal heart rate, respiratory exchange ratio, lactate-derived thresholds (OBLA), metabolic load-dependent tolerance, and post-exercise recovery markers were assessed using breath-by-breath gas analysis, heart rate monitoring, and capillary blood lactate sampling.
The study aims to determine whether the 30-15IFT elicits more sensitive and sport-specific physiological responses compared with treadmill testing, thereby supporting its use in performance monitoring and individualized training prescription in elite women's football.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Female football players aged 18-35 years
- •Competing in the Turkish Women's Super League
- •Minimum of 3 years of professional football experience,
- •Full participation in training and matches during the previous 6 months,
- •Ability to perform maximal exercise testing
排除标准
- •Musculoskeletal injury affecting performance within the last 3 months,
- •Diagnosed cardiovascular, metabolic, or respiratory disease,
- •Any condition limiting maximal physical effort
研究组 & 干预措施
30-15 Intermittent Fitness Test (30-15IFT)
Participants performed the 30-15 Intermittent Fitness Test consisting of 30-second running bouts interspersed with 15-second passive recovery periods, with progressive increases in running speed until volitional exhaustion.
干预措施: 30-15 Intermittent Fitness Test (Other)
30-15 Intermittent Fitness Test (30-15IFT)
Participants performed the 30-15 Intermittent Fitness Test consisting of 30-second running bouts interspersed with 15-second passive recovery periods, with progressive increases in running speed until volitional exhaustion.
干预措施: Control (Other)
CONTROL
Inspiratory Muscle Warm-Up Non-treated group, Control
结局指标
主要结局
Maximal Running Speed (MRS)
时间窗: DAY 1
Highest running speed achieved during each protocol.
Maximal Oxygen Uptake (VO₂max)
时间窗: Day 1
Maximal oxygen uptake measured via breath-by-breath gas analysis.
次要结局
- body composition(1 Day)
- Maximal Heart Rate (HRmax)(1 Day)
- Maximal Oxygen Uptake (VO₂max)(DAY 1)
研究者
Coşkun YILMAZ
ASSOC. PROF.
Gümüşhane Universıty