Training protocol
All participants were members of the same training camp and, their training regime was the same under the supervision of trainers. All subjects participated in the following training program: 5 training sessions of 90 min per week, including 10 min of warm-up, 20 min of physical training (Core stability, Speed, Agility, and Quickness), 10 min of technical training, 20 min of tactical training, 25 min of the training game, and at the end there was cooling for 5 min. Strength and power training occurred once per week as part of team training and consisted of a combination of plyometric (single leg hops, Drop jump, box jump, squat jump: 3 sets × 8 repetitions for each) and resistance exercises (3–4 sets, 10–12 repetitions, 75–80% of a maximum repetition). The type, intensity, load, and duration of training program were similar for all participants. Also one day a week was dedicated to friendly matches, in which each participant played for approximately 10–15 min.