This controlled study investigated the effects of 7 weeks pre-season supplemental jump and sprint exercise training on sand (JSETS) on athletic ability in male handball players. Males (n = 40; 16.3 ± 0.4 years) were randomly assigned to a jump and sprint training (JSTG; n = 24) or a control (CG; n = 18) group. The JSETS replaced a part of the regular handball training of players. The tests included jumps (squat, counter-movement, and 5 jump tests), sprint times (5 m, 10 m and 20 m), agility (modified T and modified Illinois tests), repeated sprint T-test, and balance (standing stork and Y balance tests). JSTG showed relative to CG significant decreases in sprint times over all distances (5 m (p = 0.002, d = 0.735 (medium); 10 m (p = 0.012, d = 0.577 (medium) and 20 m (p = 0.012, d = 0.573 (medium)), and gains in both measures of agility (p = 0.001, d = 0.859 (large) and p = 0.004, d = 0.670 (medium) for T-Half and Illinois-tests respectively), and in jumping squat (p < 0.001, d = 0.813 (large)) and countermovement jumping (p = 0.004, d = 0.663 (medium)), but not in the 5-jump test. Three of the four repeated sprint scores (best time (BT), meantime (MT) and total time (TT)) improved significantly (p = 0.012, d = 0.577 (medium); p = 0.042, d = 0.463 (small) and p = 0.043, d = 0.458 (small) respectively), but the decrement (DEC) remained unchanged. The Y balance test showed significant gains in 2 of 3 scores for the right leg and 1 of 3 scores for the left leg, and the stork balance (right leg) was enhanced. In conclusion, compared to regular handball training, supplemental jump and sprint exercise training on sand substantially improved sprinting, agility, jumping, repeated sprinting, and balance in male handball players.

这项对照研究调查了 7 周季前补充跳跃和短跑沙地运动训练 (JSETS) 对男性手球运动员运动能力的影响。男性（n = 40；16.3 ± 0.4 岁）被随机分配到跳跃和冲刺训练（JSTG；n = 24）或对照组（CG；n = 18）。JSETS 取代了球员常规手球训练的一部分。测试包括跳跃（深蹲、反向运动和 5 次跳跃测试）、冲刺时间（5 m、10 m 和 20 m）、敏捷性（改进的 T 和改进的伊利诺伊州测试）、重复冲刺 T 测试和平衡（站立鹳和 Y 平衡测试）。JSTG 显示相对于 CG，所有距离（5 m（p = 0.002，d = 0.735（中等）；10 m（p = 0.012，d = 0.577（中等）和 20 m（p = 0.012，d））的冲刺时间显着减少= 0.573（中等）），并且在两种敏捷性衡量指标中均有所提高（p = 0.001，d = 0.859（大）和 p = 0.004，d = 0.670（中）分别用于 T-Half 和伊利诺伊州测试），以及跳蹲（p < 0.001，d = 0.813（大））和反向跳跃（p = 0.004, d = 0.663（中等）），但不在 5 跳测试中。四个重复冲刺得分中的三个（最佳时间 (BT)、时间 (MT) 和总时间 (TT)）显着提高（p = 0.012，d = 0.577（中）；p = 0.042，d = 0.463（小）和分别为 p = 0.043、d = 0.458（小）），但减量 (DEC) 保持不变。Y 平衡测试显示，右腿 3 分中的 2 分和左腿 3 分中的 1 分显着增加，并且鹳平衡（右腿）得到增强。综上所述，相较于常规手球训练，沙地辅助跳跃和冲刺运动训练大大提高了冲刺、敏捷、跳跃、重复冲刺、