A comparison of isomaltulose versus maltodextrin ingestion during soccer-specific exercise

Emma J. Stevenson, Anthony Watson, Stephan Theis, Anja Holz, Liam Harper, Mark Russell

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Purpose: The performance and physiological effects of isomaltulose and maltodextrin consumed intermittently during prolonged soccer-specific exercise were investigated.Methods: University soccer players (n=22) performed 120-min of intermittent exercise while consuming 8% carbohydrate-electrolyte drinks (equivalent to ~20 g·h-1) containing maltodextrin (Glycaemic Index: 90-100), isomaltulose (Glycaemic Index: 32) or a carbohydrate-energy-free placebo in a manner replicating the practices of soccer players (i.e., during warm-up and half-time). Physical (sprinting, jumping) and technical (shooting, dribbling) performance was assessed.Results: Blood glucose and plasma insulin (both P<0.001) concentrations varied by trial with isomaltulose maintaining >13% higher blood glucose concentrations between 75-90-min versus maltodextrin (P<0.05). A decline in glycaemia at 60-min in maltodextrin was attenuated with isomaltulose (-19% vs. -4%; P=0.015). Carbohydrates attenuated elevations in plasma epinephrine concentrations (P<0.05), but isomaltulose proved most effective at 90- and 120-min. Carbohydrates did not attenuate IL-6 increases or reductions in physical or technical performances (all P>0.05). Ratings of abdominal discomfort were influenced by trial (P<0.05) with lower values for both carbohydrates compared to PLA from 60-min onwards.Conclusions: Although carbohydrates (~20 g·h-1) did not attenuate performance reductions throughout prolonged soccer-specific exercise, isomaltulose maintained higher blood glucose at 75-90-min, lessened the magnitude of the exercise-induced rebound glycaemic response and attenuated epinephrine increases whilst maintaining similar abdominal discomfort values relative to maltodextrin. When limited opportunities exist to consume carbohydrates on competition-day, low-glycaemic isomaltulose may offer an alternative nutritional strategy for exercising soccer players.
Original languageEnglish
Pages (from-to)2321-2333
Number of pages13
JournalEuropean Journal of Applied Physiology
Volume117
Issue number11
Early online date19 Sep 2017
DOIs
Publication statusPublished - Nov 2017

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Soccer
Eating
Carbohydrates
Glycemic Index
Blood Glucose
Electrolytes
Epinephrine
Placebos
isomaltulose
maltodextrin
Insulin

Cite this

Stevenson, Emma J. ; Watson, Anthony ; Theis, Stephan ; Holz, Anja ; Harper, Liam ; Russell, Mark. / A comparison of isomaltulose versus maltodextrin ingestion during soccer-specific exercise. In: European Journal of Applied Physiology. 2017 ; Vol. 117, No. 11. pp. 2321-2333.
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abstract = "Purpose: The performance and physiological effects of isomaltulose and maltodextrin consumed intermittently during prolonged soccer-specific exercise were investigated.Methods: University soccer players (n=22) performed 120-min of intermittent exercise while consuming 8{\%} carbohydrate-electrolyte drinks (equivalent to ~20 g·h-1) containing maltodextrin (Glycaemic Index: 90-100), isomaltulose (Glycaemic Index: 32) or a carbohydrate-energy-free placebo in a manner replicating the practices of soccer players (i.e., during warm-up and half-time). Physical (sprinting, jumping) and technical (shooting, dribbling) performance was assessed.Results: Blood glucose and plasma insulin (both P<0.001) concentrations varied by trial with isomaltulose maintaining >13{\%} higher blood glucose concentrations between 75-90-min versus maltodextrin (P<0.05). A decline in glycaemia at 60-min in maltodextrin was attenuated with isomaltulose (-19{\%} vs. -4{\%}; P=0.015). Carbohydrates attenuated elevations in plasma epinephrine concentrations (P<0.05), but isomaltulose proved most effective at 90- and 120-min. Carbohydrates did not attenuate IL-6 increases or reductions in physical or technical performances (all P>0.05). Ratings of abdominal discomfort were influenced by trial (P<0.05) with lower values for both carbohydrates compared to PLA from 60-min onwards.Conclusions: Although carbohydrates (~20 g·h-1) did not attenuate performance reductions throughout prolonged soccer-specific exercise, isomaltulose maintained higher blood glucose at 75-90-min, lessened the magnitude of the exercise-induced rebound glycaemic response and attenuated epinephrine increases whilst maintaining similar abdominal discomfort values relative to maltodextrin. When limited opportunities exist to consume carbohydrates on competition-day, low-glycaemic isomaltulose may offer an alternative nutritional strategy for exercising soccer players.",
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A comparison of isomaltulose versus maltodextrin ingestion during soccer-specific exercise. / Stevenson, Emma J.; Watson, Anthony; Theis, Stephan; Holz, Anja; Harper, Liam; Russell, Mark.

In: European Journal of Applied Physiology, Vol. 117, No. 11, 11.2017, p. 2321-2333.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A comparison of isomaltulose versus maltodextrin ingestion during soccer-specific exercise

AU - Stevenson, Emma J.

AU - Watson, Anthony

AU - Theis, Stephan

AU - Holz, Anja

AU - Harper, Liam

AU - Russell, Mark

PY - 2017/11

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N2 - Purpose: The performance and physiological effects of isomaltulose and maltodextrin consumed intermittently during prolonged soccer-specific exercise were investigated.Methods: University soccer players (n=22) performed 120-min of intermittent exercise while consuming 8% carbohydrate-electrolyte drinks (equivalent to ~20 g·h-1) containing maltodextrin (Glycaemic Index: 90-100), isomaltulose (Glycaemic Index: 32) or a carbohydrate-energy-free placebo in a manner replicating the practices of soccer players (i.e., during warm-up and half-time). Physical (sprinting, jumping) and technical (shooting, dribbling) performance was assessed.Results: Blood glucose and plasma insulin (both P<0.001) concentrations varied by trial with isomaltulose maintaining >13% higher blood glucose concentrations between 75-90-min versus maltodextrin (P<0.05). A decline in glycaemia at 60-min in maltodextrin was attenuated with isomaltulose (-19% vs. -4%; P=0.015). Carbohydrates attenuated elevations in plasma epinephrine concentrations (P<0.05), but isomaltulose proved most effective at 90- and 120-min. Carbohydrates did not attenuate IL-6 increases or reductions in physical or technical performances (all P>0.05). Ratings of abdominal discomfort were influenced by trial (P<0.05) with lower values for both carbohydrates compared to PLA from 60-min onwards.Conclusions: Although carbohydrates (~20 g·h-1) did not attenuate performance reductions throughout prolonged soccer-specific exercise, isomaltulose maintained higher blood glucose at 75-90-min, lessened the magnitude of the exercise-induced rebound glycaemic response and attenuated epinephrine increases whilst maintaining similar abdominal discomfort values relative to maltodextrin. When limited opportunities exist to consume carbohydrates on competition-day, low-glycaemic isomaltulose may offer an alternative nutritional strategy for exercising soccer players.

AB - Purpose: The performance and physiological effects of isomaltulose and maltodextrin consumed intermittently during prolonged soccer-specific exercise were investigated.Methods: University soccer players (n=22) performed 120-min of intermittent exercise while consuming 8% carbohydrate-electrolyte drinks (equivalent to ~20 g·h-1) containing maltodextrin (Glycaemic Index: 90-100), isomaltulose (Glycaemic Index: 32) or a carbohydrate-energy-free placebo in a manner replicating the practices of soccer players (i.e., during warm-up and half-time). Physical (sprinting, jumping) and technical (shooting, dribbling) performance was assessed.Results: Blood glucose and plasma insulin (both P<0.001) concentrations varied by trial with isomaltulose maintaining >13% higher blood glucose concentrations between 75-90-min versus maltodextrin (P<0.05). A decline in glycaemia at 60-min in maltodextrin was attenuated with isomaltulose (-19% vs. -4%; P=0.015). Carbohydrates attenuated elevations in plasma epinephrine concentrations (P<0.05), but isomaltulose proved most effective at 90- and 120-min. Carbohydrates did not attenuate IL-6 increases or reductions in physical or technical performances (all P>0.05). Ratings of abdominal discomfort were influenced by trial (P<0.05) with lower values for both carbohydrates compared to PLA from 60-min onwards.Conclusions: Although carbohydrates (~20 g·h-1) did not attenuate performance reductions throughout prolonged soccer-specific exercise, isomaltulose maintained higher blood glucose at 75-90-min, lessened the magnitude of the exercise-induced rebound glycaemic response and attenuated epinephrine increases whilst maintaining similar abdominal discomfort values relative to maltodextrin. When limited opportunities exist to consume carbohydrates on competition-day, low-glycaemic isomaltulose may offer an alternative nutritional strategy for exercising soccer players.

KW - Extra-time

KW - Football

KW - Half-time

KW - Carbohydrate

KW - Rebound hypoglycaemia

U2 - 10.1007/s00421-017-3719-5

DO - 10.1007/s00421-017-3719-5

M3 - Article

VL - 117

SP - 2321

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JO - European Journal of Applied Physiology

JF - European Journal of Applied Physiology

SN - 1439-6319

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ER -