Does the method of measuring centre of mass displacement affect vertical stiffness calculation in single-leg hopping?

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

![CDATA[The purpose of this study was to compare vertical stiffness values calculated from two kinetic and two kinematic estimations of the vertical displacement of the centre of mass. Twenty recreationally active male and female participants completed one 15 s single-leg hopping trial at 2.2 Hz with vertical stiffness calculated for the first 10 complete hop cycles. Vertical displacement was estimated using double integration (DI), first principle (FP), sacral marker cluster (SMC) and segmental analysis (SA) methods. Bland-Altman plots demonstrated the SA and DI methods to have a small bias (0.92 kN/m) and tight 95% limits of agreement (-1.16 to 3.08 kN/m). In contrast, the SMC and FP methods underestimated and overestimated vertical stiffness, respectively. These findings suggest the SA and DI methods can be used interchangeably to calculate vertical stiffness.]]
Original languageEnglish
Title of host publicationProceedings of the 33rd International Conference of Biomechanics in Sports, Poitiers, France, 29 June - 3 July, 2015
PublisherInternational Society of Biomechanics in Sports
Pages438-441
Number of pages4
Publication statusPublished - 2015
EventInternational Conference on Biomechanics in Sports -
Duration: 29 Jun 2015 → …

Publication series

Name
ISSN (Print)1999-4168

Conference

ConferenceInternational Conference on Biomechanics in Sports
Period29/06/15 → …

Keywords

  • kinematics
  • leg
  • motor ability

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