Does a drop landing represent a whole skill landing and is this moderated by fatigue?

Suzi Edwards, Julie R. Steele, Deirdre McGhee

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

This study aimed to determine whether the landing phase of a drop landing (DL) differed with respect to a complete jumping and landing task, a spike jump (SJ), and whether fatigue altered the landing of these movements. Fourteenmale volleyball players performed five DL and SJ in a counterbalanced order under two experimental conditions: non-fatigued and fatigued. Fatigue, induced by repetitive jumping sets, was confirmed by decrements in vertical jumpheight >25% and increased blood lactate >6 mmol/L. Each landing task was characterized by the resultant ground reaction forces (GRF), sagittal plane kinematics and muscle recruitment patterns of six lower extremity muscles. Twoway repeated analysis of variance results indicated a main effect of movement on many of the GRF, kinematic and electromyographic variables characterizing landing, indicating that the two tasks required substantially differentlower limb biomechanics during landing. Although fatigue did not alter the GRF in either task, there were significant movement x fatigue condition interactions. The significant between-task differences in the biomechanical variablescharacterizing landing and the differential effects of fatigue on each landing task, question the validity of using a DL as an experimental task to investigate lower limb landing mechanics of whole jumping and landing movements.
Original languageEnglish
Pages (from-to)516-523
Number of pages8
JournalScandinavian Journal of Medicine and Science in Sports
Volume20
Issue number3
DOIs
Publication statusPublished - 2010

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