Fig. 2From: The effect of a sand surface on physical performance responses of junior male handball players to plyometric trainingTraining associated changes in dynamic balance test (Stork balance test) following plyometric training on sand (PS), plyometric training on a stable surface (P) and controls following the standard regimen (C). ¥ = denotes a significant difference between PS and C; £ = denotes a significant difference between PS and P; € = denotes a significant difference between P and C; ¥:p ≤ 0.05; ¥¥¥:p ≤ 0.001; ££:p ≤ 0.01; £££:p ≤ 0.001; €:p ≤ 0.05; €€:p ≤ 0.01Back to article page