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Douglas J. Casa, Samuel N. Cheuvront, Stuart D. Galloway and Susan M. Shirreffs

separated by 40 min or undertook vertical jumps and a 400-m sprint. Each of these sessions was undertaken twice. The body mass reductions averaged 0.8 and 1.3 kg in the 50/200-m sessions over a 2-hr period, and averaged 0.5 and 1.1 kg over 45 min in the 400 m and vertical jump session. These reductions are

Open access

Jennifer Sygo, Alicia Kendig Glass, Sophie C. Killer and Trent Stellingwerff

focus on strategies that might have an application within jumps and be of interest for future research. Hypohydration Acute hypohydration can impact muscle strength, power, and endurance to varying degrees, as well as vertical jump ability ( Savoie et al., 2015 ). According to a recent meta

Open access

Gary J. Slater, Jennifer Sygo and Majke Jorgensen

affect power-to-weight ratio in isolation. Intentional dehydration is an alternative approach to acutely promote sufficient weight loss to potentially favorably influence power-to-weight ratio. Indeed, there is some evidence to show an enhancement in vertical jump performance following dehydration

Open access

Seiichiro Takei, Kuniaki Hirayama and Junichi Okada

-activation stimulus: a review of the literature and practical applications . Sports Med . 2014 ; 44 : 1347 – 1359 . PubMed ID: 24943044 doi:10.1007/s40279-014-0214-6 10.1007/s40279-014-0214-6 24943044 13. Suchomel TJ , Lamont HS , Moir GL . Understanding vertical jump potentiation: a deterministic model

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Eric S. Rawson, Mary P. Miles and D. Enette Larson-Meyer

supplementation on muscle function have been described as equivocal, with discrepancies in research in part caused by differences in baseline 25-hydroxyvitamin D concentrations prior to supplementation ( Close et al., 2016 ). For example, Close, Russell, et al. ( 2013 ) showed improved sprint time and vertical