The effect of intermittent high-intensity running exercise on the rate of gastric emptying in man

John Beattie Leiper, C. W. Nicholas, A. Ali, C. Williams, Ronald John Maughan

    Research output: Contribution to journalArticle

    47 Citations (Scopus)

    Abstract

    LEIPER, J. B., C. W. NICHOLAS, A. ALI, C. WILLIAMS, and R. J. MAUGHAN. The Effect of Intermittent High-Intensity Running on Gastric Emptying of Fluids in Man. Med. Sci. Sports Exerc., Vol. 37, No. 2, pp. 240-247, 2005. Purpose: This study examined the effect of variable-intensity shuttle running on gastric emptying of a carbohydrate-free placebo (Plac) drink and of a 6.4% carbohydrate-electrolyte (CHO) sports drink. Method: We compared the volume of test drink emptied during two 15-min periods of walking exercise (WE) with that during two 15-min periods of the Loughborough Intermittent Shuttle Test (LIST). Gastric emptying was measured on the four trials using a double-sampling aspiration technique in eight healthy males after ingestion of a 420 +/- 49 mL and a 168 +/- 20 mL bolus of the appropriate test drink at the start of the first and second exercise period, respectively. Results: During the initial 15 min of exercise, the mean (+/- SD) volume of Plac (124 95 mL) and CHO (71 +/- 43 mL) drink emptied was similar between the two LIST trials, but the volume of Plac (227 +/- 95 mL) and CHO (159 +/- 63 mL) drinks emptied on the WE trials was greater than for the respective test drinks on the LIST trials. Similar volumes of test drinks were emptied on all trials (P = 0.20) during the second 15 min of exercise. Over the 30 min of each trial, the exercise intensity of the LIST reduced the volume of the Plac (211 +/- 108 mL) and CHO (208 +/- 83 mL) drink emptied compared with that on the WE trial for the Plac (396 +/- 74 mL) and CHO (293 +/- 73 mL) drink, respectively. Conclusions: The exercise intensity of the LIST is sufficient to slow gastric emptying of carbohydrate and noncarbohydrate containing drinks compared with walking. Dilute carbohydrate-electrolyte drinks empty at about the same rate as carbohydrate-free beverages during variable-intensity running.

    Original languageEnglish
    Pages (from-to)240-247
    Number of pages7
    JournalMedicine and Science in Sports and Exercise
    Volume37
    DOIs
    Publication statusPublished - 2005

    Keywords

    • carbohydrate
    • hydration
    • soccer
    • sprints
    • walking
    • water
    • MUSCLE GLYCOGEN UTILIZATION
    • CARBOHYDRATE FEEDINGS
    • PROLONGED EXERCISE
    • INGESTED FLUIDS
    • SOCCER
    • DEHYDRATION
    • PERFORMANCE
    • REPLACEMENT
    • SECRETION
    • CAPACITY

    Cite this

    The effect of intermittent high-intensity running exercise on the rate of gastric emptying in man. / Leiper, John Beattie; Nicholas, C. W.; Ali, A.; Williams, C.; Maughan, Ronald John.

    In: Medicine and Science in Sports and Exercise, Vol. 37, 2005, p. 240-247.

    Research output: Contribution to journalArticle

    Leiper, John Beattie ; Nicholas, C. W. ; Ali, A. ; Williams, C. ; Maughan, Ronald John. / The effect of intermittent high-intensity running exercise on the rate of gastric emptying in man. In: Medicine and Science in Sports and Exercise. 2005 ; Vol. 37. pp. 240-247.
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    abstract = "LEIPER, J. B., C. W. NICHOLAS, A. ALI, C. WILLIAMS, and R. J. MAUGHAN. The Effect of Intermittent High-Intensity Running on Gastric Emptying of Fluids in Man. Med. Sci. Sports Exerc., Vol. 37, No. 2, pp. 240-247, 2005. Purpose: This study examined the effect of variable-intensity shuttle running on gastric emptying of a carbohydrate-free placebo (Plac) drink and of a 6.4{\%} carbohydrate-electrolyte (CHO) sports drink. Method: We compared the volume of test drink emptied during two 15-min periods of walking exercise (WE) with that during two 15-min periods of the Loughborough Intermittent Shuttle Test (LIST). Gastric emptying was measured on the four trials using a double-sampling aspiration technique in eight healthy males after ingestion of a 420 +/- 49 mL and a 168 +/- 20 mL bolus of the appropriate test drink at the start of the first and second exercise period, respectively. Results: During the initial 15 min of exercise, the mean (+/- SD) volume of Plac (124 95 mL) and CHO (71 +/- 43 mL) drink emptied was similar between the two LIST trials, but the volume of Plac (227 +/- 95 mL) and CHO (159 +/- 63 mL) drinks emptied on the WE trials was greater than for the respective test drinks on the LIST trials. Similar volumes of test drinks were emptied on all trials (P = 0.20) during the second 15 min of exercise. Over the 30 min of each trial, the exercise intensity of the LIST reduced the volume of the Plac (211 +/- 108 mL) and CHO (208 +/- 83 mL) drink emptied compared with that on the WE trial for the Plac (396 +/- 74 mL) and CHO (293 +/- 73 mL) drink, respectively. Conclusions: The exercise intensity of the LIST is sufficient to slow gastric emptying of carbohydrate and noncarbohydrate containing drinks compared with walking. Dilute carbohydrate-electrolyte drinks empty at about the same rate as carbohydrate-free beverages during variable-intensity running.",
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    T1 - The effect of intermittent high-intensity running exercise on the rate of gastric emptying in man

    AU - Leiper, John Beattie

    AU - Nicholas, C. W.

    AU - Ali, A.

    AU - Williams, C.

    AU - Maughan, Ronald John

    PY - 2005

    Y1 - 2005

    N2 - LEIPER, J. B., C. W. NICHOLAS, A. ALI, C. WILLIAMS, and R. J. MAUGHAN. The Effect of Intermittent High-Intensity Running on Gastric Emptying of Fluids in Man. Med. Sci. Sports Exerc., Vol. 37, No. 2, pp. 240-247, 2005. Purpose: This study examined the effect of variable-intensity shuttle running on gastric emptying of a carbohydrate-free placebo (Plac) drink and of a 6.4% carbohydrate-electrolyte (CHO) sports drink. Method: We compared the volume of test drink emptied during two 15-min periods of walking exercise (WE) with that during two 15-min periods of the Loughborough Intermittent Shuttle Test (LIST). Gastric emptying was measured on the four trials using a double-sampling aspiration technique in eight healthy males after ingestion of a 420 +/- 49 mL and a 168 +/- 20 mL bolus of the appropriate test drink at the start of the first and second exercise period, respectively. Results: During the initial 15 min of exercise, the mean (+/- SD) volume of Plac (124 95 mL) and CHO (71 +/- 43 mL) drink emptied was similar between the two LIST trials, but the volume of Plac (227 +/- 95 mL) and CHO (159 +/- 63 mL) drinks emptied on the WE trials was greater than for the respective test drinks on the LIST trials. Similar volumes of test drinks were emptied on all trials (P = 0.20) during the second 15 min of exercise. Over the 30 min of each trial, the exercise intensity of the LIST reduced the volume of the Plac (211 +/- 108 mL) and CHO (208 +/- 83 mL) drink emptied compared with that on the WE trial for the Plac (396 +/- 74 mL) and CHO (293 +/- 73 mL) drink, respectively. Conclusions: The exercise intensity of the LIST is sufficient to slow gastric emptying of carbohydrate and noncarbohydrate containing drinks compared with walking. Dilute carbohydrate-electrolyte drinks empty at about the same rate as carbohydrate-free beverages during variable-intensity running.

    AB - LEIPER, J. B., C. W. NICHOLAS, A. ALI, C. WILLIAMS, and R. J. MAUGHAN. The Effect of Intermittent High-Intensity Running on Gastric Emptying of Fluids in Man. Med. Sci. Sports Exerc., Vol. 37, No. 2, pp. 240-247, 2005. Purpose: This study examined the effect of variable-intensity shuttle running on gastric emptying of a carbohydrate-free placebo (Plac) drink and of a 6.4% carbohydrate-electrolyte (CHO) sports drink. Method: We compared the volume of test drink emptied during two 15-min periods of walking exercise (WE) with that during two 15-min periods of the Loughborough Intermittent Shuttle Test (LIST). Gastric emptying was measured on the four trials using a double-sampling aspiration technique in eight healthy males after ingestion of a 420 +/- 49 mL and a 168 +/- 20 mL bolus of the appropriate test drink at the start of the first and second exercise period, respectively. Results: During the initial 15 min of exercise, the mean (+/- SD) volume of Plac (124 95 mL) and CHO (71 +/- 43 mL) drink emptied was similar between the two LIST trials, but the volume of Plac (227 +/- 95 mL) and CHO (159 +/- 63 mL) drinks emptied on the WE trials was greater than for the respective test drinks on the LIST trials. Similar volumes of test drinks were emptied on all trials (P = 0.20) during the second 15 min of exercise. Over the 30 min of each trial, the exercise intensity of the LIST reduced the volume of the Plac (211 +/- 108 mL) and CHO (208 +/- 83 mL) drink emptied compared with that on the WE trial for the Plac (396 +/- 74 mL) and CHO (293 +/- 73 mL) drink, respectively. Conclusions: The exercise intensity of the LIST is sufficient to slow gastric emptying of carbohydrate and noncarbohydrate containing drinks compared with walking. Dilute carbohydrate-electrolyte drinks empty at about the same rate as carbohydrate-free beverages during variable-intensity running.

    KW - carbohydrate

    KW - hydration

    KW - soccer

    KW - sprints

    KW - walking

    KW - water

    KW - MUSCLE GLYCOGEN UTILIZATION

    KW - CARBOHYDRATE FEEDINGS

    KW - PROLONGED EXERCISE

    KW - INGESTED FLUIDS

    KW - SOCCER

    KW - DEHYDRATION

    KW - PERFORMANCE

    KW - REPLACEMENT

    KW - SECRETION

    KW - CAPACITY

    U2 - 10.1249/01.MSS.0000152730.74596.50

    DO - 10.1249/01.MSS.0000152730.74596.50

    M3 - Article

    VL - 37

    SP - 240

    EP - 247

    JO - Medicine and Science in Sports and Exercise

    JF - Medicine and Science in Sports and Exercise

    SN - 0195-9131

    ER -