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Change-of-Direction Repeated Sprints in Adolescent Female Basketball Players
Sponsor: Pamukkale University
Summary
The purpose of this randomized crossover study was to compare the acute effects of repeated-sprint protocols incorporating different numbers of 180-degree changes of direction in adolescent female basketball players. Twenty participants completed three exercise conditions in a randomized, counterbalanced order: 10 × 15-m linear sprints, 10 × 15-m sprints incorporating one 180-degree change of direction, and 10 × 15-m sprints incorporating two 180-degree changes of direction. Each sprint was followed by 30 seconds of passive recovery. Sprint performance, perceived exertion, heart rate, peripheral oxygen saturation, and systolic and diastolic blood pressure were assessed. The study examined whether increasing the number of changes of direction affected repeated-sprint performance and acute perceptual and cardiovascular responses.
Official title: Effects of Changes of Direction on Repeated-Sprint Performance, Perceived Exertion, and Acute Cardiovascular Responses in Adolescent Female Basketball Players: A Randomized Crossover Study
Key Details
Gender
FEMALE
Age Range
16 Years - 18 Years
Study Type
INTERVENTIONAL
Enrollment
20
Start Date
2026-05-02
Completion Date
2026-05-21
Last Updated
2026-07-27
Healthy Volunteers
Yes
Conditions
Interventions
Linear Repeated-Sprint Protocol
Following a standardized 20-minute dynamic warm-up, participants performed 10 maximal 15-m linear sprints without a change of direction. Each sprint began from a standing position 0.5 m behind the starting line and was recorded using electronic timing gates. A 30-second passive recovery period was provided between repetitions, during which participants remained standing.
One-COD Repeated-Sprint Protocol
Following a standardized 20-minute dynamic warm-up, participants performed 10 maximal 15-m repeated sprints. Each repetition consisted of 7.5 m of forward sprinting followed by one 180-degree change of direction and a 7.5-m return sprint. Each sprint began from a standing position 0.5 m behind the starting line and was recorded using electronic timing gates. A 30-second passive recovery period was provided between repetitions, during which participants remained standing.
Two-COD Repeated-Sprint Protocol
Following a standardized 20-minute dynamic warm-up, participants performed 10 maximal 15-m repeated sprints. Each repetition consisted of three consecutive 5-m sections and incorporated two 180-degree changes of direction. Each sprint began from a standing position 0.5 m behind the starting line and was recorded using electronic timing gates. A 30-second passive recovery period was provided between repetitions, during which participants remained standing.
Locations (1)
Pamukkale University Sports Sciences and Technology Research and Application Center
Denizli, Pamukkale, Turkey (Türkiye)