المجلة الجزائرية للعلوم الإجتماعية والإنسانية
Volume 9, Numéro 1, Pages 1011-1024
2021-06-30
Effect Of Two Warm-ups Based On Pap On Sjft Subsequent Performance
Authors : Ait Amar Toufik .
Abstract
Introduction: Postactivation Potentiation (PAP) is proposed as a method to achieve greater physiological and mechanical strength through the use of pre-loading during warm-up. However, there is a lack of studies on PAP applied to elite athletes, particularly using populations from combat sports such as judo. Even though the proposed mechanisms responsible for the PAP are increasingly complex, about the properties of the conditioned stimulus (intensity, volume, recovery time,...), it appears that the effects of the PAP are the most important among highly skilled subjects. Judo is a weight class combat sport that requires higher levels of developed strength and muscular power, which represents a unique opportunity to examine the effect of PAP in an applied framework within a specialized population. Therefore, the main objective of this study is to examine the effect of two PAP-based warm-up protocols in elite weight-category judokas, one using maximum isometry and the second using the contrast method. Materials and Methods: Sixteen elite athletes from the Algerian men's judo team volunteered to participate in this study: Light class (n=8), Middle (n=4), Heavy (n=4). Anthropometric measurements were taken (height, weight) as well as PAP-based warm-up protocols. The first protocol contained 3 series x 5-second 110% 1RM isometry at ½ squats, followed by the SJFT test after 7 min recovery. As for the second protocol, the judoka performed 2 series at 90% 1RM at ½ squats, followed immediately by 6 jumps (CMJB). After 7 min of recovery, the athlete performed the SJFT test. An analysis of variance with repeated measurements of the three protocols showed that all three weight categories improved their power for both experimental warm-up protocols compared to control protocol. Results: Both experimental protocols improved the performance of all three weight categories. The light and middleweight categories improved their performance with the contrast protocol by 4.97% and 3.66% respectively, while the heavyweight category had a better performance in the SJFT with the maximum isometry protocol by improving their performance by 3.33%. Conclusion: This study showed that the light and middleweight categories improved their performance after the contrast warm-up protocol, while the heavy category had better performance under the influence of the maximum isometry warm-up.
Keywords
PAP ; Weight category ; Elite athlete ; Warm up ; Judo
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