Effects of 12-week cross training Vs crossfit program on agility and reaction time of adolescent handball athletes

The present study aimed to investigate and compare the effects of a 12-week cross training and crossfit regimen on two key performance variables—agility and reaction time—among adolescent handball athletes. Thirty male handball players (aged 14-17 years) were randomly divided into two groups: cross-training (CT, n = 15) and cross-fit (CF, n = 15). Both groups trained four days per week for 12 weeks, incorporating strength, endurance, and coordination-based drills. Agility was assessed using the Illinois agility test, while reaction time was evaluated through the Ruler drop test. Statistical analysis using paired and independent t-tests revealed significant within-group improvements in both agility and reaction time (p < 0.05). The cross fit training group showed a greater reduction in Illinois agility test times (pre = 17.32 ± 0.64 s; post = 15.84 ± 0.55 s; Δ = -8.54%) compared to the cross-training group (pre = 17.21 ± 0.59 s; post = 16.21 ± 0.51 s; Δ = -5.81%). Similarly, mean reaction time improved more in the cross-fit training group (pre = 0.265 ± 0.018 s; post = 0.230 ± 0.015 s; Δ = -13.2%) than in the cross-training group (pre = 0.261 ± 0.019 s; post = 0.238 ± 0.016 s; Δ = -8.8%). The results indicate that both training modalities significantly enhanced agility and reaction time, with cross-fit producing superior performance outcomes due to its high-intensity functional structure and dynamic movement complexity. Incorporating cross-fit-based elements into handball conditioning programs can effectively improve directional quickness, and reaction efficiency crucial for high-level competitive play.