Effect of whey protein isolate on rehydration after exercise

James, Lewis J.; Mattin, Lewis; Aldiss, Peter; Adebishi, Rukayat; Hobson, Ruth M.

doi:10.1007/s00726-014-1680-8

Cited by 25 publications

(29 citation statements)

References 35 publications

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“…The present study set out to test whether the hemodynamic responses at rest and cardiovascular reactivity to dynamic exercise between moderate-energy dense liquid loads, high in protein or carbohydrate differ. We hypothesised that a drink high in protein that causes rapid increases in blood amino acids, such as whey protein (Boirie et al 1997), and which raises plasma albumin levels and plasma volume (Okazaki et al 2009;James et al 2014), would cause a greater increase in BP reactivity to exercise relative to carbohydrate.…”

Section: Introductionmentioning

confidence: 99%

Differential acute effects of carbohydrate- and protein-rich drinks compared with water on cardiac output during rest and exercise in healthy young men

Rontoyanni

Werner

Sanders

et al. 2015

Appl. Physiol. Nutr. Metab.

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. Differential acute effects of carbohydrate-and protein-rich drinks compared with water on cardiac output during rest and exercise in healthy young men. Applied physiology, nutrition, and metabolism = Physiologie appliquée, nutrition et métabolisme, 40(8), 803-810. DOI: 10.1139803-810. DOI: 10. /apnm-2014 Citing this paper Please note that where the full-text provided on King's Research Portal is the Author Accepted Manuscript or Post-Print version this may differ from the final Published version. If citing, it is advised that you check and use the publisher's definitive version for pagination, volume/issue, and date of publication details. And where the final published version is provided on the Research Portal, if citing you are again advised to check the publisher's website for any subsequent corrections. General rightsCopyright and moral rights for the publications made accessible in the Research Portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognize and abide by the legal requirements associated with these rights.•Users may download and print one copy of any publication from the Research Portal for the purpose of private study or research.•You may not further distribute the material or use it for any profit-making activity or commercial gain •You may freely distribute the URL identifying the publication in the Research Portal Take down policy If you believe that this document breaches copyright please contact librarypure@kcl.ac.uk providing details, and we will remove access to the work immediately and investigate your claim. respectively; the higher cardiac output following CHO was accompanied by an increase in stroke 26 volume and a lower SVR. The mean increments (95% CI) in cardiac output during exercise were 27 CHO 4.7 (4.4, 5.0), PRO 4.9 (4.6, 5.2) and water 4.6 (4.3, 4.9) L/min with the difference between 28 PRO vs. water being significant (P < 0.025). There were no other statistically significant 29 differences. In summary, a CHO-rich drink increased cardiac output and lowered SVR in the resting 30 state compared to a PRO-rich drink or water but the effect size of changes in these variables did not 31 differ during or after exercise between CHO and PRO. Neither protein nor carbohydrate affected 32 blood pressure reactivity to exercise. 33 34

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Section: Introductionmentioning

confidence: 99%

Differential acute effects of carbohydrate- and protein-rich drinks compared with water on cardiac output during rest and exercise in healthy young men

Rontoyanni

Werner

Sanders

et al. 2015

Appl. Physiol. Nutr. Metab.

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“…1 h), results in enhanced diuresis and failure to restore net fluid balance (NFB) within 4-6 h (8,9,11) . The rate and magnitude of fluid retention following exercise and thermal dehydration is enhanced by the addition of electrolytes (11)(12)(13) , carbohydrate (14)(15)(16)(17) and protein (18)(19)(20)(21) affecting singly, or in combination, the inter-related processes of gastric emptying, intestinal absorption and retention. Addition of electrolytes, carbohydrate and protein may also fulfil the requirement to replenish body reserves and recovery of muscle glycogen.…”

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confidence: 99%

A metered intake of milk following exercise and thermal dehydration restores whole-body net fluid balance better than a carbohydrate–electrolyte solution or water in healthy young men

Seery

Jakeman

2016

Br J Nutr

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Appropriate rehydration and nutrient intake in recovery is a key component of exercise performance. This study investigated whether the recovery of body net fluid balance (NFB) following exercise and thermal dehydration to −2 % of body mass (BM) was enhanced by a metered rate of ingestion of milk (M) compared with a carbohydrate-electrolyte solution (CE) or water (W). In randomised order, seven active men (aged 26·2 (SD 6·1) years) undertook exercise and thermal dehydration to −2 % of BM on three occasions. A metered replacement volume of M, CE or W equivalent to 150 % of the BM loss was then consumed within 2-3 h. NFB was subsequently measured for 5 h from commencement of rehydration. A higher overall NFB in M than CE (P = 0·001) and W (P = 0·006) was observed, with no difference between CE and W (P = 0·69). After 5 h, NFB in M remained positive (+117 (SD 122) ml) compared with basal, and it was greater than W (−539 (SD 390) ml, P = 0·011) but not CE (−381 (SD 460) ml, P = 0·077, d = 1·6). Plasma osmolality (P osm ) and K remained elevated above basal in M compared with CE and W. The change in P osm was associated with circulating pre-provasopressin (r s 0·348, P < 0·001), a biomarker of arginine vasopressin, but could not account fully for the augmented NFB in M compared with CE and W. These data suggest that a metered approach to fluid ingestion acts in synergy with the nutrient composition of M in the restoration of NFB following exercise and thermal dehydration. Normal physiological and behavioural perturbation of net body water (fluid) balance changes daily total body water (TBW) by <1 % (1) . The demands of physical activity perturb whole-body fluid balance and results in a net water deficit (dehydration) that may affect exercise tolerance and/or performance (2)(3)(4) . Physical activity accelerates the rate of substrate oxidation and the depletion of body energy stores. Particularly during intense exercise, the preferential use of carbohydrate as a substrate leads to accelerated use of muscle glycogen and an increase in branched chain amino acid oxidation by muscle that is inversely related to muscle glycogen content (5) . After exercise, amino acids, particularly the essential amino acids (EAA), are required in support of tissue repair and remodelling. A recovery beverage should, therefore, fulfil both fluid and nutrient requirements. Supported by evidence that milk can act as an effective rehydration fluid (6,7) , it is reasoned that the nutrient composition of milk offers a superior recovery fluid than water or carbohydrate-electrolyte solutions (CE).A common, laboratory-based, experimental paradigm to investigate the optimal strategy for fluid replacement is to undertake prolonged (approximately 90 min) exercise and thermal dehydration to a fixed decrease in body mass (−2 % BM), a surrogate of change in TBW (8,9) . The outcome of these studies recommends a fluid replacement regimen that requires the ingestion of a fluid volume equivalent to 150 % of the BM loss during exercise to be consumed ...

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“…The combination of carbohydrate and protein beverage was established in promoting performance [2, 23,24]. Most of the study proposed whey [18,25,26] and milk based [27][28][29][30] as recovery/rehydration choices. Unfortunately, this type of beverages are not applicable for those individuals who are vegan and lactose intolerance.…”

Section: Discussionmentioning

confidence: 99%

Acute physiological responses and performance following subsequent CrossFit ‘CINDY’ workout with Zea Mays juice

Ahmad

Jusoh

Tengah

2018

PES

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Purpose: The purpose of this study was to investigate the physiological responses and performance following subsequent repeated high intensity exercise with consumption of Zea may juice ( ZM ) Materials: Total of seventeen participants involved in the study. They were physically active who had cardio and strength training at least 3 times per week. The age of participants was 21.8±1.7 years old, body weight 65.4±11.2 kg and height 169.7±7.2 cm. Crossfit ‘CINDY’ exercise were repeated between two hours of rest. Treatment beverage of ( ZM ) juice vs Carbohydrate-electrolyte (CE) drinks were consumed immediately after exercise in double blind cross over manner. Number of complete set of exercise, heart rate, blood lactate and rate of perceived exhaustion (RPE) were recorded at the end of each exercise session. Results: Total number of complete ‘CINDY’ exercise significantly increased in ZM juice group during second bout of exercise compared to CE drink group. There were no significant difference in heart rate, blood lactate and RPE in both groups Conclusions: ZM juice has potentials an alternative recovery beverage to promote subsequent repeated exercise within short rest time.

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Effect of whey protein isolate on rehydration after exercise

Cited by 25 publications

References 35 publications

Differential acute effects of carbohydrate- and protein-rich drinks compared with water on cardiac output during rest and exercise in healthy young men

Differential acute effects of carbohydrate- and protein-rich drinks compared with water on cardiac output during rest and exercise in healthy young men

A metered intake of milk following exercise and thermal dehydration restores whole-body net fluid balance better than a carbohydrate–electrolyte solution or water in healthy young men

Acute physiological responses and performance following subsequent CrossFit ‘CINDY’ workout with Zea Mays juice

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