Physical playing pattern and ecological validity of the YoYo-IR1 Test in U-19 female basketball.

Background: Understanding the physical activity, the physiological profile and the repeated sprint bouts (RS) nature of U-19 female basketball during official games could help coaches to plan their training. However, they are not extensively researched, as well as, the ecological validity of the Yo-Yo Intermittent-Recovery Test level-1 (YoYo-IRT1). The aims of this study were to determine: 1) the physical and physiological demands of U-19 elite-female basketball; 2) the relationship between the YoYo-IRT1 and game physical-activity; 3) and the RS nature in U-19 basketball.

Sport science applied to basketball refereeing: a narrative review.

: The present review provides a summary of basketball referees' game activities, fitness assessment, cognitive function, and energy expenditure (EE) during official games.: Analyzing the literature on basketball referees. Literature review conducted using Pub Med, WOK, SCOPUS, and Google Scholar, with search criteria including the terms 'referees', 'game officials', 'basketball' and performance terms such as 'physiological', 'physical demands', 'decision-making', and 'mental fatigue'.

Fitness Field Tests' Correlation With Game Performance in U-19-Category Basketball Referees.

Purpose: To examine the relation between game performance, physiological responses, and field-test results in Tunisian basketball referees.

Methods: Computerized time-motion analysis, heart rate (HR), and blood lactate concentration [La] were measured in 15 referees during 8 competitive games (under-19-y-old Tunisian league). Referees also performed a repeated-sprint test (RSA), Yo-Yo Intermittent Recovery Test level 1 (YYIRTL1), agility T-test, and 30-m sprint with 10-m lap time.

Physical and physiological demands of U-19 basketball refereeing: Aerobic and anaerobic demands.

Objectives: This study aimed to examine the physical and physiological demands of basketball refereeing.

Methods: 16 elite-level basketball referees were studied during U-19 basketball games (n=8) for time-motion analyses, exercise heart rates (HR) and blood lactate concentration [La]. Game activities were considered as time spent and distance covered in five locomotors activities (standing, walking, jogging, running and sprinting).

Test-retest reliability, criterion-related validity, and minimal detectable change of the Illinois agility test in male team sport athletes.

The purposes of this study were first to assess the reliability and criterion-related validity of the Illinois change of direction (COD) Illinois Agility Test (IAGT) and second to determine whether a relationship with power and speed exists. A total of 105 male team sport athletes participated in this investigation. Repeat measurements in 89 subjects out of the 105 were performed to assess the test-retest reliability and the 95% confidence interval (CI) of the difference in the score between paired observations (minimal detectable change [MDC]95) of the COD IAGT.