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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
Rivista di Medicina, Traumatologia e Psicologia dello Sport
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES EXCERCISE PHYSIOLOGY AND BIOMECHANICS
The Journal of Sports Medicine and Physical Fitness 2014 August;54(4):432-40
Effects of a very short-term preseason training procedure on the fitness of soccer players
Meckel Y. 1, Harel U. 1, Michaely Y. 1, Eliakim A. 1, 2 ✉
1 Zinman College of Physical Education and Sport Sciences, Wingate Institute, Netanya, Israel;
2 Child Health and Sport Center, Pediatric Department, Meir Medical Center, Sackler School of Medicine, Tel‑Aviv University, Israel
AIM: The aim of the study was to examine the effect of a very short-term training program on the immediate and late changes in the fitness level of young soccer players during the pre-season period.
METHODS: Twenty-four young (17-18 years) soccer players were randomly assigned to either an interval (9 to 5 X 1000 m) or continuous (9000 to 5000 m) training group, matched for total running distance. While the number of intervals or total distance was reduced every day, speed was increased in each session throughout the five days of both training programs. Each group performed 20 m shuttle run, 10 m sprint, 5 X 10 m run, 250 m run and vertical jump test, before (pre), immediately after (post) and 10 days after (late) completion of five successive training days during the preseason period for the upcoming soccer season.
RESULTS: There was a significant increase in aerobic capacity both immediately post-training and in the late test, in both training groups. We found a significantly greater reduced performance in the 250 m run immediately following training in the interval compared to the continuous training group. In addition, there was a decrease in vertical jump that was significantly greater in the interval compared to the continuous training group, both immediately post-training and in the late test.
CONCLUSION: Very short interval or continuous preseason training programs induce significant improvement in aerobic fitness but lead to stagnation or deterioration in anaerobic performance. Considering the opposing effects of both training modes (positive on the aerobic power but negative on the anaerobic performance), coaches should make their choices based on the relevant conditions at hand.