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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
School of Physical Education and Sport, University of Tuzla.
College of Human Kinetics, University of the Philippines.
School of Physical Education and Sport, University of Tuzla.
School of Physical Education and Sport, University of Tuzla.
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2015 (English)In: Biology of Sport, ISSN 0860-021X, E-ISSN 2083-1862, Vol. 32, no 2, 129-134 p.Article 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, 129-134 p.
Keyword [en]
post activation potentiation, fatigue, conditioning contraction, countermovement jump, external load
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-28540DOI: 10.5604/20831862.1140427OAI: oai:DiVA.org:miun-28540DiVA: diva2:952792
Available from: 2016-08-15 Created: 2016-08-15 Last updated: 2016-08-30Bibliographically approved

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