The objectives of this study were to investigate: 1) whether there were morning-to-evening differences in short-term maximal performance and 2) the impact of prolonged and specific warm-up on short-term maximal performance diurnal variations in young basketball players. Fifteen basketball players of both sexes (Male = 8; Female = 7; age: 14.4 ± 0.46 yr; weight: 64.7 ± 7.1 kg; height: 175.2 ± 6.6 cm; BMI: 21.1 ± 1.9 kg/m2) completed the following short-term maximal performance tests: CMJ with and without arm swing, Lane Agility Drill, Zig-Zag agility test with and without the ball, Sprint 20 m with and without the ball with the passage at 5 and 10 m. All tests were performed after the 15-min standard warm-up procedure (with static stretching) and/or 25-min specific warm-up (with prolonged running and dynamic stretching) in the morning and evening. Vertical jumping tests and all change-of-direction speed tests (with and without a ball) with superior responses were achieved in the evening after standard warm-up among all participants (p < 0.05). In contrast, superior short-term maximal performance was observed in the morning after prolonged and specific warm-up protocol (p < 0.05). It was concluded that specific and prolonged warm-up protocols are suitable strategy to prevent diurnal variation in short-term maximal performance in young basketball players.

Faculty of Physical Education and Sport University of East Sarajevo East Sarajevo Bosnia and Herzegovina

Faculty of Sport and Health Sciences University of Jyväskylä Jyväskylä Finland

Faculty of Sport and Physical Education University of Nis Nis Serbia

Faculty of Sport and Physical Education University of Priština Kosovska Mitrovica Leposavić Serbia

Faculty of Sports and Physical Education University of Sarajevo Sarajevo Bosnia and Herzegovina

Faculty of Sports Studies Incubator of Kinanthropological Research Masaryk University Brno Czech Republic

Science and Research Centre Institute for Kinesiology Research Koper Slovenia

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