engleski

Does SAQ training improve the speed and flexibility of young soccer players? A randomized controlled trial

The aim of this study was to determine the effects of a 12 week speed, agility and quickness (SAQ) training program on speed and flexibility in young soccer players. One hundred and thirtytwo soccer players were randomly assigned to experimental (EG ; n = 66, mean ± SD: age: 18.5 ± 0.4 years (range 17–19 years) ; body mass: 71.30 ± 5.93 kg ; stature: 177.2 ± 6.5 cm) and control groups (CG ; n = 66, mean ± SD: age: 18.6 ± 0.6 years (range 17– 19 years) ; body mass: 70.63 ± 4.87 kg ; stature: 175.9 ± 5.7 cm). The experimental group performed SAQ training whilst the control group undertook straight-line sprint training matched for volume and duration. Sprint performance was assessed using 5 and 10 m sprints and a further test including maximal speed, a 20 m sprint. Flexibility was assessed using sit and reach, V-sit and reach, leg lift from supine position and lateral leg lift while lying on the side tests. Sprints over 5, 10 and 20 m did not differ between groups at baseline, but by week 12, the 5 m sprint had significantly improved (P < .05) in the SAQ training group compared to the control group (1.40 ± 0.13 vs. 1.46 ± 0.12 s, respectively) although this improvement had a trivial effect size (ES = 0.15). The 10 m sprint time had improved by 3.3% (P < .01) in the SAQ group with a moderate effect size (ES = 0.66).

range of motion ; speed ; flexibility ; soccer players

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