Performance Differences Among Skilled Soccer Players of Different Playing Positions During Vertical Jumping and Landing

John Harry, Leland A Barker, Charles Roger James, Janet S Dufek

Research output: Contribution to journalArticlepeer-review

Abstract

Both jumping and landing performance of skilled soccer players is diminished when task demands are increased. However, it is unclear if performance changes are specific to players of certain playing positions. Therefore, we assessed jumping and landing performance among skilled soccer players of different playing positions. Twenty-five NCAA Division 1 male soccer players (179.5±7.8 cm, 75.5±7.1 kg, 19.7±1.2 years) performed maximum effort vertical jump landings (VJL) while vertical ground reaction force (vGRF) data were obtained. Participants were stratified into goalkeeping (GK), defensive (DEF), midfield (MID), and attacking (ATT) group according to their primary playing position. One-way ANOVAs (α=0.05) and effect sizes (ES; large≥0.80) were used to compare differences among groups. The jumping phase variables evaluated were jump height, unloading and amortization vGRF magnitudes, eccentric rate of force development (eRFD), and the reactive strength index (RSI). Landing phase varia
Original languageEnglish
Pages (from-to)304-312
JournalThe Journal of Strength and Conditioning Research
StatePublished - Jan 2018

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