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Acute effects of prolonged intermittent low-intensity isometric warm-up schemes on jump, sprint, and agility performance in collegiate soccer players
University of Tuzla, Bosnia-Herzegovina;Center for Sports Excellence - Tuzla, Bosnia-Herzegovina.ORCID iD: 0000-0002-9554-1234
University of the Philippines Diliman, Republic of the Philippines.
University of Tuzla, Bosnia-Herzegovina;Center for Sports Excellence - Tuzla, Bosnia-Herzegovina.
University of Tuzla, Bosnia-Herzegovina;Center for Sports Excellence - Tuzla, Bosnia-Herzegovina.
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2015 (English)In: Biology of Sport, ISSN 0860-021X, E-ISSN 2083-1862, Vol. 32, no 2, p. 129-134Article in journal (Refereed) Published
Abstract [en]

The aim of the present study was to compare the effects of different warm-up interventions on jump, sprint and agility performance in collegiate soccer players. Twenty-one healthy male college soccer players (age: 20.14 ± 1.65 years; body height: 179.9 ± 8.34 cm; body mass: 74.4 ± 13.0 kg; % body fat: 9.45 ± 4.8) participated in the study. Subjects underwent four different randomized warm-up protocols separated by at least 48 hours. The warm-up schemes were: 1. no conditioning contraction protocol (NCC); 2. dynamic stretching (DS); 3. prolonged intermittent low-intensity isometric exercise (ST); and, 4. ST with an additional external load equal to 30% of body weight (ST + 30% BW). All interventions were preceded by a general warm-up. Results from one-way repeated measures ANOVA demonstrated a significant difference in countermovement jump (CMJ) at F(3,60) = 10.2, ηρ² = 0.337, p < 0.01. Post hoc analysis revealed a significant difference in CMJ performance in DS when compared to NCC and ST + 30% BW. No significant difference in CMJ was observed between DS and ST. CMJ scores in NCC, ST, and ST + 30% BW were non-significant. There was a significant difference in speed; F(3, 60) = 6.61, ηρ² = 0.248, p < 0.01. Post hoc analysis revealed significantly better time in DS than NCC and ST. However, no difference in speed was observed between DS and ST + 30% BW. Similarly, speed was similar in NCC, ST and ST + 30% BW. A significant difference in agility performance was also observed; F(3, 60) = 24.1, ηρ²= 0.546, p < 0.01. Post hoc analysis revealed significantly greater performance gains in DS than NCC. No significant difference in agility was observed in DS, ST and ST + 30% BW. In conclusion, a prolonged intermittent low-intensity isometric protocol using bodyweight only showed similar benefits with dynamic stretching in countermovement jump performance. When the same isometric condition with additional load equal to 30% of bodyweight was applied, effects in speed and agility were similar to dynamic stretching.

Place, publisher, year, edition, pages
Warsaw, 2015. Vol. 32, no 2, p. 129-134
Keywords [en]
post activation potentiation, fatigue, conditioning contraction, countermovement jump, external load
National Category
Sport and Fitness Sciences
Research subject
Social Sciences, Sport Science
Identifiers
URN: urn:nbn:se:lnu:diva-78039DOI: 10.5604/20831862.1140427OAI: oai:DiVA.org:lnu-78039DiVA, id: diva2:1251518
Available from: 2018-09-27 Created: 2018-09-27 Last updated: 2018-10-29Bibliographically approved

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Pojskić, Haris

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