Improved maximal strength is not associated with improvements in sprint time or jump height in high-level female football players: a cluster-randomized controlled trial

Autor: Sigurd Pedersen, Kim Arne Heitmann, Edvard H. Sagelv, Dag Johansen, Svein Arne Pettersen
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: BMC Sports Science, Medicine and Rehabilitation, Vol 11, Iss 1, Pp 1-8 (2019)
Druh dokumentu: article
ISSN: 2052-1847
DOI: 10.1186/s13102-019-0133-9
Popis: Abstract Background Maximal strength increments are reported to result in improvements in sprint speed and jump height in elite male football players. Although similar effects are expected in females, this is yet to be elucidated. The aim of this study was to examine the effect of maximal strength training on sprint speed and jump height in high-level female football players. Methods Two female football teams were team-cluster-randomized to a training group (TG) performing maximal strength training (MST) twice a week for 5 weeks, or control group (CG) doing their regular pre-season preparations. The MST consisted of 3–4 sets of 4–6 repetitions at ≥85% of 1 repetitions maximum (1RM) in a squat exercise. Sprint speed and jump height were assessed in 5-, 10- and 15 m sprints and a counter-movement jump (CMJ) test, respectively. Nineteen participants in TG (18.3 ± 2.7 years) and 14 in CG (18.3 ± 2.4 years) completed pre- and posttests and were carried forward for final analyses. Results There was no improvement in neither of the sprint times (p > 0.36), nor jump height (p = 0.87). The players increased their 1RM in squats (main of effect of time: p
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