Influence of High-Intensity Intermittent Training on Explosive Force and Anaerobic Power in Volleyball

Abstract

Objectives:
As in any sport, whether played individually or as a team, volleyball requires a unique combination
of physical qualities such as explosive power, agility, coordination and flexibility. Players must be
able to react quickly to flying balls, perform explosive jumps to attack or block, and maintain a
stable posture and balance during dynamic play phases.
A good physical preparation for volleyball therefore includes a varied mix of exercises and
techniques aimed at strengthening the specific muscles used in this sport, improving cardioendurancerespiratory, develop reaction speed and promote coordination of movements.
Among these exercises, the intermittent exercises which constitute an example of the orientation of
the training in accordance with the analyses of the various factors of the performance in Volleyballball, the objective of this study was to know the effects of high intensity intermittent training on the
explosive force of the lower limbs and on anaerobic power.
-Equipment and methods:
Twelve players of volleyball under 21 years (186,8+0,36 cm, 69,83+15,05 kg) have participated in
this study. Two groups have been composed: a control group and experimental group. The players
have realized a test of Squat Jump and the measure if the anaerobic power . After the per-test had
been effected, the experimental group realized intermittent work of high-intensity a reason of two
session per week during the eight weeks. The proposed exercises had been composed with setoff 4
minutes (20 seconds work and 10 seconds of passive rest ) with four repetitions. During the
duration of the effort (20 seconds) a various activities like the plyometric exercises, the squats with
or without charge. Jumps had been integrated. The test of student has been applicated for the
different statistics.
-Results:
After the obtained results of Squat Jump has been ameliorated for the (3,40% ; P˂0,05) from 38,7±
5 to 43,5± 6 anaerobic power (2,30% ; P˂0,05) from 94,68±5 to 99,14±3 . The results of this year
has shown that the intermittent exercises high intensity have been more significant in the
development of the squat jump and the anaerobic power of volleyers.