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

between 1% and 4% dehydration ( Cheuvront et al., 2010 ; Gutiérrez et al., 2003 ; Hoffman et al., 1995 ; Watson et al., 2005 ) although a 6% body mass loss has been investigated when energy restriction has been combined with dehydration ( Kraemer et al., 2001 ; Viitasalo et al., 1987 ). Yet the

Open access

Keith Baar

the season, the player saw minimal changes in body mass (−2.5 kg). The decrease in body weight corresponded with a decrease in fat mass (from 8.4% to 5.9%), indicating that a large percentage of the body mass loss was the result of a decrease in fat mass. In agreement with this assessment, lean mass

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Ricardo J.S. Costa, Beat Knechtle, Mark Tarnopolsky and Martin D. Hoffman

both health and performance in ultramarathon running. Proper hydration during ultramarathon running requires the understanding that all fluid losses need not be replaced, as body mass loss from endogenous substrate oxidation is expected ( Hoffman et al., 2018a ; Maughan et al., 2007 ). It is also

Open access

cross-over design, male endurance runners (n = 11) performed 2 h of running at 70% V ˙ O 2 max in 25°C T amb and 46% RH. On one occasion participants were provided with water (1689 ± 542 ml; 11.0 ± 3.5 ml/kg) during exercise (euhydration: EUH; 0.6 ± 0.6% body mass loss (BML), P Osmol 291 ± 13 mOsmol

Open access

.— Exercise-induced body mass loss (overall mean (SD): 1.4 (0.6) %; p=0.704), Δ P V (-1.5 (2.6) %); p=0.187), and pre- to post-exercise P Osmol (293 (6) to 295 (7) mOsmol/kg, respectively; p=0.297) did not differ between CM and CEB. During the recovery period, there was a main effect of time imposed by the

Open access

Graeme L. Close, Craig Sale, Keith Baar and Stephane Bermon

. , & Tipton , K.D. ( 2010 ). Increased protein intake reduces lean body mass loss during weight loss in athletes . Medicine & Science in Sports & Exercise, 42 , 326 – 337 . PubMed ID: 19927027 doi:10.1249/MSS.0b013e3181b2ef8e 10.1249/MSS.0b013e3181b2ef8e Miller , B.F. , Hansen , M. , Olesen , J

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Gary J. Slater, Jennifer Sygo and Majke Jorgensen

euhydration, drink to their thirst and gastrointestinal tolerance, and limit body mass loss to no more than 2–3% during any one training session, complementing this with aggressive postexercise recovery strategies, inclusive of adequate fluid and electrolytes. See also Casa et al. ( 2018 ). Recovery Given

Open access

Philo U. Saunders, Laura A. Garvican-Lewis, Robert F. Chapman and Julien D. Périard

to minimize body mass losses induced via sweating, while using caution to avoid overdrinking. Those who sweat profusely may require supplementing their fluids with additional sodium (e.g., 3.0 g of salt added to 0.5 L of a carbohydrate-electrolyte solution). From a practical perspective, it was

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Oliver C. Witard, Ina Garthe and Stuart M. Phillips

reduces lean body mass loss during weight loss in athletes . Medicine & Science in Sports & Exercise, 42 ( 2 ), 326 – 337 . doi:10.1249/MSS.0b013e3181b2ef8e 10.1249/MSS.0b013e3181b2ef8e Moberg , M. , Apro , W. , Ekblom , B. , van Hall , G. , Holmberg , H.C. , & Blomstrand , E. ( 2016

Open access

Amy J. Hector and Stuart M. Phillips

, N.M. ( 2018 ). Prohibited contaminants in dietary supplements . Sports Health, 10 ( 1 ), 19 – 30 . doi:10.1177/1941738117727736 10.1177/1941738117727736 Mettler , S. , Mitchell , N. , & Tipton , K.D. ( 2010 ). Increased protein intake reduces lean body mass loss during weight loss in