Joint-level determinants of the dynamic strength index: implications for testing and monitoring.
The aims of this study were to determine the associations and differences between the traditional dynamic strength index (DSIGRF, calculated from ground reaction force [GRF] data) and joint-level dynamic strength indices (DSINJM, calculated from net joint moment [NJM] data). Eight female NCAA Divisi...
| Publicado en: | Sports Biomechanics Vol. 23; no. 12; pp. 3191 - 3202 |
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| Autores principales: | , , , , |
| Formato: | equations & formulas research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Dec2024
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=182907293&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 182907293 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14763141 I7F jtl: Sports Biomechanics issn: 14763141 maglogo: N pubinfo: dt: Dec2024 vid: 23 iid: 12 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 182907293 159757978 182907293 182907293 10.1080/14763141.2022.2131614 182907293 ppf: 3191 ppct: 11 formats: tig: atl: Joint-level determinants of the dynamic strength index: implications for testing and monitoring. aug: au: Ahn, Nayun Kim, Hoon Krzyszkowski, John Roche, Stuart Kipp, Kristof affil: Department of Physical Therapy – Program in Exercise and Rehabilitation Science, Marquette University, Milwaukee, WI, USA sug: subj: Joints Physiology Muscle Strength Physiology Ground Reaction Force Athletic Performance Isometric Contraction Physiology Jumping Physiology Motion Capture Biomechanics Evaluation Task Performance and Analysis Human Lacrosse Physiology Female Athletes Descriptive Statistics Female ab: The aims of this study were to determine the associations and differences between the traditional dynamic strength index (DSIGRF, calculated from ground reaction force [GRF] data) and joint-level dynamic strength indices (DSINJM, calculated from net joint moment [NJM] data). Eight female NCAA Division I lacrosse players performed three maximal effort isometric mid-thigh pulls (IMTP) and countermovement jumps (CMJ). GRF and motion capture data were recorded and used to calculate hip, knee, and ankle NJM. The ratio between peak forces during the IMTP and CMJ tests was used to calculate the DSIGRF and the ratio of peak NJM was used to calculate ankle, knee, and hip DSINJM. Associations and differences between DSIGRF and DSINJM were examined with Pearson's correlation coefficients, paired t-tests and Hedge's g effect sizes. The results showed that only the hip DSINJM was correlated with DSIGRF (hip: p = 0.037; r = 0.738). In addition, athletes exhibited significantly greater DSINJM than DSIGRF. Although these results suggest DSIGRF are associated with hip DSINJM, the fact that joint-level DSINJM were generally greater than DSIGRF suggests the ratio between peak NJM during the CMJ and IMTP may not provide intuitive or useful data for strength and conditioning coaches or sport scientists. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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