The Influence of Countermovement Jump Protocol on Reactive Strength Index Modified and Flight Time: Contraction Time in Collegiate Basketball Players

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dc.contributor.authorHeishman, Aaron
dc.contributor.authorBrown, Brady
dc.contributor.authorDaub, Bryce
dc.contributor.authorMiller, Ryan
dc.contributor.authorFreitas, Eduardo
dc.contributor.authorBemben, Michael G.
dc.date.accessioned2019-03-07T15:32:26Z
dc.date.available2019-03-07T15:32:26Z
dc.date.issued2019-02-12
dc.description.abstractThe purpose of the present investigation was to evaluate differences in Reactive Strength Index Modified (RSIMod) and Flight Time to Contraction Time Ratio (FT:CT) during the countermovement jump (CMJ) performed without the arm swing (CMJNAS) compared to the CMJ with the arm swing (CMJAS), while exploring the relationship within each variable between jump protocols. A secondary purpose sought to explore the relationship between RSIMod and FT:CT during both jump protocols. Twenty-two collegiate basketball players performed both three CMJNAS and three CMJAS on a force plate, during two separate testing sessions. RSIMod was calculated by the flight-time (RSIModFT) and impulse-momentum methods (RSIModIMP). CMJ variables were significantly greater during the CMJAS compared to CMJNAS (p < 0.001). There were large to very large correlations within each variable between the CMJAS and CMJNAS. There were significant positive correlations among RSIModFT, RSIModIMP, and FT:CT during both the CMJAS (r ≥ 0.864, p < 0.001) and CMJNAS (r ≥ 0.960, p < 0.001). These findings identify an increase in RSIMod or FT:CT during the CMJAS, that may provide independent information from the CMJNAS. In addition, either RSIMod or FT:CT may be utilized to monitor changes in performance, but simultaneous inclusion may be unnecessary.en_US
dc.description.peerreviewYesen_US
dc.description.sponsorshipConflicts of Interest The authors declare no conflict of interest. Funding This research received no external funding.en_US
dc.identifier.citationHeishman, A., Brown, B., Daub, B., Miller, R., Freitas, E., & Bemben, M. (2019). The Influence of Countermovement Jump Protocol on Reactive Strength Index Modified and Flight Time: Contraction Time in Collegiate Basketball Players. Sports (Basel, Switzerland), 7(2), Sports (Basel, Switzerland), 12 February 2019, Vol.7(2).en_US
dc.identifier.doi10.3390/sports7020037en_US
dc.identifier.urihttps://hdl.handle.net/11244/317567
dc.languageen_USen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectathlete monitoringen_US
dc.subjectathlete performanceen_US
dc.subjectcollegiate basketballen_US
dc.subjectfatigue monitoringen_US
dc.subjectcountermovement jumpen_US
dc.subjectCMJ arm swingen_US
dc.subjectCMJ without arm swingen_US
dc.titleThe Influence of Countermovement Jump Protocol on Reactive Strength Index Modified and Flight Time: Contraction Time in Collegiate Basketball Playersen_US
dc.typeArticleen_US
ou.groupCollege of Arts and Sciences::Department of Health and Exercise Scienceen_US

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