The 30-15 Intermittent Fitness Test Provides Superior Sport-Specific Sensitivity to Treadmill Testing in Elite Female Footballers
NCT ID: NCT07193108
Last Updated: 2026-02-06
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
20 participants
INTERVENTIONAL
2025-03-05
2025-05-20
Brief Summary
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Detailed Description
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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.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
SUPPORTIVE_CARE
SINGLE
Study Groups
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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.
30-15 Intermittent Fitness Test
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.
Control
Inspiratory Muscle Warm-Up Non-treated group, Control
CONTROL
Inspiratory Muscle Warm-Up Non-treated group, Control
No interventions assigned to this group
Interventions
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30-15 Intermittent Fitness Test
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.
Control
Inspiratory Muscle Warm-Up Non-treated group, Control
Eligibility Criteria
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Inclusion Criteria
* 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
Exclusion Criteria
* Diagnosed cardiovascular, metabolic, or respiratory disease,
* Any condition limiting maximal physical effort
18 Years
30 Years
FEMALE
Yes
Sponsors
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Gümüşhane Universıty
OTHER
Responsible Party
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Coşkun YILMAZ
ASSOC. PROF.
Principal Investigators
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coşkun yılmaz, associate professor
Role: PRINCIPAL_INVESTIGATOR
Gümüşhane Universıty
Locations
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Gumushane Univetsity
Gümüşhane, Kelkit, Turkey (Türkiye)
Countries
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Other Identifiers
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2025-0451
Identifier Type: -
Identifier Source: org_study_id
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