This study aims to prepare special exercises using VertiMax device and to identify the effect of these exercises on the explosive strength and defensive blocking of senior handball players. The researchers have adopted the experimental approach, and the case study is identified by the senior handball players of Al- Dagharah handball club whose number is 16, and their lengths ranged (182.4 ± 3.282 cm), weights (82 ± 4.387 kg) and ages (23 ± 1.846 years). They are divided by a simple random method into two groups by (8) players per group in which the experimental group has used exercise by VertiMax device, while the control group has used team coach exercises. The researchers have conducted the explosive strength and defensive blocking tests of the study sample. The training method has included 3 units per week for a period of 6 weeks using the method of high-intensity interval training. The results of the explosive strength and defensive blocking tests have been presented and analysed. It is concluded that the exercises by using the VertiMax as auxiliary and effective devices can be relied upon in developing the explosive strength and defensive blocking of the handball.
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