Effects of a Carbohydrate-Protein Beverage on Cycling Endurance and Muscle Damage

Saunders, Michael; Kane, Mark D.; Todd, M. Kent

doi:10.1249/01.mss.0000132377.66177.9f

Cited by 244 publications

(333 citation statements)

References 15 publications

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“…The placebo group received an electrolyte and artificial sweetener solution and the CHO-PRO group received a 6.2% carbohydrate-1.5% protein solution (both provided by Pacific Health Laboratories Inc., Woodbridge, NJ). The CHO-PRO supplement was selected because it had previously been found to improve endurance performance and reduce muscle damage during endurance exercise (14,28). Sixteen subjects received the placebo and 18 subjects received the CHO-PRO drink.…”

Section: Experimental Approach To the Problemmentioning

confidence: 99%

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The Effect of a Carbohydrate and Protein Supplement on Resistance Exercise Performance, Hormonal Response, and Muscle Damage

BATY

Hwang²,

Ding³

et al. 2007

J Strength Cond Res

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Ivy. The effect of a carbohydrate and protein supplement on resistance exercise performance, hormonal response, and muscle damage. J. Strength Cond. Res. 21(2): 321-329. 2007.-The purpose of this study was to determine whether resistance exercise performance and postexercise muscle damage were altered when consuming a carbohydrate and protein beverage (CHO-PRO; 6.2% and 1.5% concentrations). Thirty-four male subjects (age: 21.5 Ϯ 1.7 years; height: 177.3 Ϯ 1.1 cm; weight: 77.2 Ϯ 2.2 kg) completed 3 sets of 8 repetitions at their 8 repetition maximum to volitional fatigue. The exercise order consisted of the high pull, leg curl, standing overhead press, leg extension, lat pull-down, leg press, and bench press. In a double-blind, posttest-only control group design, subjects consumed 355 ml of either CHO-PRO or placebo (electrolyte and artificial sweetener beverage) 30 minutes prior to exercise, 177 ml immediately prior to exercise, 177 ml halfway through the exercise bout, and 355 ml immediately following the exercise bout. There were no significant differences between groups relative to exercise performance. Cortisol was significantly elevated in the placebo group compared to the CHO-PRO group at 24 hours postexercise. Insulin was significantly elevated immediately pre-exercise, after the fourth lift, immediately postexercise, 1 hour, and 6 hours postexercise in CHO-PRO compared to the placebo group. Myoglobin levels in the placebo group approached significance halfway through the exercise bout and at 1 hour postexercise (p ϭ 0.06 and 0.07, respectively) and were significantly elevated at 6 hours postexercise compared to the CHO-PRO group. Creatine kinase levels were significantly elevated in the placebo group at 24 hours postexercise compared to the CHO-PRO group. The CHO-PRO supplement did not improve performance during a resistance exercise bout, but appeared to reduce muscle damage, as evidenced by the responses of both myoglobin and creatine kinase. These results suggest the use of a CHO-PRO supplement during resistance training to reduce muscle damage and soreness.

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Section: Experimental Approach To the Problemmentioning

confidence: 99%

“…Recent work, however, suggests that these original nutritional guidelines may need to be adjusted. In the past five years, evidence has accumulated suggesting that endurance performance can be further enhanced by consuming a carbohydrate and protein (CHO-PRO) supplement compared to a carbohydrate-only supplement (14,28).…”

mentioning

confidence: 99%

The Effect of a Carbohydrate and Protein Supplement on Resistance Exercise Performance, Hormonal Response, and Muscle Damage

BATY

Hwang²,

Ding³

et al. 2007

J Strength Cond Res

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“…According to Saunders et al 1 , by matching a carbohydrate portion, differences in recovery can be attributed to anything other than the absolute carbohydrate content of the supplements. So, a limitation from many studies is that the increased availability of total calories Apparently, when total calories are controlled, the proposed beneficial effects of the added protein are not fully supported 20 .…”

Section: Discussionmentioning

confidence: 99%

“…It should be noted that CHO+PRO group received a 4:1 ratio of carbohydrate to protein supplementation as it has already been tested in other studies 1,7,11,12,14,20,22,31,32 . However, more recent studies have tested the 3:1 ratio, i.e., a larger amount of PRO in relation to CHO 18,19,33,34 .…”

Section: Discussionmentioning

confidence: 99%

“…However, when comparing the effects of soy with milk, some authors have found that animal protein is better 37,38 . Therefore, the different benefits or effects between animal and vegetable proteins on muscle function recovery should be investigated to better understand whether the tested vegetable protein (pea protein concentrate) could generate the same results as whey protein, since this is the most common protein source added to CHO supplements 1,10,11,14,[18][19][20]22 .…”

Section: Discussionmentioning

confidence: 99%

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Co-ingestion of carbohydrate and pea protein does not enhance muscle recovery after strenuous exercise

et al. 2014

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A B S T R A C T ObjectiveTo assess the influence of carbohydrate and added pea protein concentrate supplementation on muscle recovery after a military operation called Leader's Reaction Test. MethodsTwenty-four soldiers from the Brazilian Army were divided into three equal groups (n=8). They received either carbohydrate (0.8.g/kg body weight/h), carbohydrate+carbohydrate (1.0.g/kg body weight/h), or carbohydrate+protein (0.8 g/kg body weight/h of carbohydrate + 0.2 g/kg body weight/h of protein), immediately, 60, and 120 minutes after the Leader's Reaction Test. Prior, immediately after and 24 hours after the Leader's Reaction Test, maximal isometric strength and body composition were assessed. Blood samples were also collected for later analysis of concentrations of lactate dehydrogenase and creatine kinase. ResultsTwenty-four hours after the Leader's Reaction Test, maximal creatine kinase levels were significantly lower than its levels immediately after (501.00 ± 422.09 versus 275.29 ± 242.08 U/L (carbohydrate); 616.88 ± 291.45

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Nutrition for Endurance and Ultra‐Endurance Training

Bosch

Smit

2011

Sport and Exercise Nutrition

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Effects of a Carbohydrate-Protein Beverage on Cycling Endurance and Muscle Damage

Cited by 244 publications

References 15 publications

The Effect of a Carbohydrate and Protein Supplement on Resistance Exercise Performance, Hormonal Response, and Muscle Damage

The Effect of a Carbohydrate and Protein Supplement on Resistance Exercise Performance, Hormonal Response, and Muscle Damage

Co-ingestion of carbohydrate and pea protein does not enhance muscle recovery after strenuous exercise

Nutrition for Endurance and Ultra‐Endurance Training

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