Potato ingestion is as effective as carbohydrate gels to support prolonged cycling performance

Amadeo F. Salvador, Colleen F. Mckenna, Rafael A. Alamilla, Ryan M. T. Cloud, Alexander R. Keeble, Adriana Miltko, Susannah E. Scaroni, Joseph W. Beals, Alexander V. Ulanov, Ryan N. Dilger, Laura L. Bauer, Elizabeth M. Broad, Nicholas A. Burd

Research output: Contribution to journalArticle

Abstract

Carbohydrate (CHO) ingestion is an established strategy to improve endurance performance. Race fuels should not only sustain performance, but also be readily digested and absorbed. Potatoes are a whole-food based option that fulfills these criteria yet their impact on performance remains unexamined. We investigated the effects of potato purée ingestion during prolonged cycling on subsequent performance versus commercial CHO gel or a water-only condition. Twelve cyclists (70.7 ± 7.7 kg, 173 ± 8 cm, 31± 9 years, 22 ± 5.1 % body fat; mean ± SD) with average peak oxygen consumption (VO2PEAK)of 60.7 ± 9.0 mL/kg/min performed a 2 h cycling challenge (60-85%VO2PEAK) followed by a time trial (TT, 6kJ/kg body mass) while consuming potato, gel, or water in a randomized-crossover design. The race fuels were administered with U-[13C6]glucose for an indirect estimate of gastric emptying rate. Blood samples were collected throughout the trials. Blood glucose concentrations were higher (P<0.001) in potato and gel conditions when compared to water condition. Blood lactate concentrations were higher (P=0.001) after the TT completion in both CHO conditions when compared to water condition. TT performance was improved (P=0.032) in both potato (33.0 ± 4.5 min) and gel (33.0 ± 4.2 min) conditions when compared to the water condition (39.5 ± 7.9 min). Moreover, no difference was observed in TT performance between CHO conditions (P=1.00). In conclusion, potato and gel ingestion equally sustained blood glucose concentrations and TT performance. Our results support the effective use of potatoes to support race performance for trained cyclists.
Original languageEnglish (US)
JournalJournal of Applied Physiology
DOIs
StateAccepted/In press - Oct 17 2019

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Solanum tuberosum
Eating
Gels
Carbohydrates
Water
Blood Glucose
Gastric Emptying
Oxygen Consumption
Cross-Over Studies
Adipose Tissue
Lactic Acid
Glucose
Food

Keywords

  • carbohydrate
  • exercise
  • sports nutrition
  • endurance

Cite this

Potato ingestion is as effective as carbohydrate gels to support prolonged cycling performance. / Salvador, Amadeo F.; Mckenna, Colleen F.; Alamilla, Rafael A.; Cloud, Ryan M. T.; Keeble, Alexander R.; Miltko, Adriana; Scaroni, Susannah E.; Beals, Joseph W.; Ulanov, Alexander V.; Dilger, Ryan N.; Bauer, Laura L.; Broad, Elizabeth M.; Burd, Nicholas A.

In: Journal of Applied Physiology, 17.10.2019.

Research output: Contribution to journalArticle

Salvador, AF, Mckenna, CF, Alamilla, RA, Cloud, RMT, Keeble, AR, Miltko, A, Scaroni, SE, Beals, JW, Ulanov, AV, Dilger, RN, Bauer, LL, Broad, EM & Burd, NA 2019, 'Potato ingestion is as effective as carbohydrate gels to support prolonged cycling performance', Journal of Applied Physiology. https://doi.org/10.1152/japplphysiol.00567.2019
Salvador, Amadeo F. ; Mckenna, Colleen F. ; Alamilla, Rafael A. ; Cloud, Ryan M. T. ; Keeble, Alexander R. ; Miltko, Adriana ; Scaroni, Susannah E. ; Beals, Joseph W. ; Ulanov, Alexander V. ; Dilger, Ryan N. ; Bauer, Laura L. ; Broad, Elizabeth M. ; Burd, Nicholas A. / Potato ingestion is as effective as carbohydrate gels to support prolonged cycling performance. In: Journal of Applied Physiology. 2019.
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abstract = "Carbohydrate (CHO) ingestion is an established strategy to improve endurance performance. Race fuels should not only sustain performance, but also be readily digested and absorbed. Potatoes are a whole-food based option that fulfills these criteria yet their impact on performance remains unexamined. We investigated the effects of potato pur{\'e}e ingestion during prolonged cycling on subsequent performance versus commercial CHO gel or a water-only condition. Twelve cyclists (70.7 ± 7.7 kg, 173 ± 8 cm, 31± 9 years, 22 ± 5.1 {\%} body fat; mean ± SD) with average peak oxygen consumption (VO2PEAK)of 60.7 ± 9.0 mL/kg/min performed a 2 h cycling challenge (60-85{\%}VO2PEAK) followed by a time trial (TT, 6kJ/kg body mass) while consuming potato, gel, or water in a randomized-crossover design. The race fuels were administered with U-[13C6]glucose for an indirect estimate of gastric emptying rate. Blood samples were collected throughout the trials. Blood glucose concentrations were higher (P<0.001) in potato and gel conditions when compared to water condition. Blood lactate concentrations were higher (P=0.001) after the TT completion in both CHO conditions when compared to water condition. TT performance was improved (P=0.032) in both potato (33.0 ± 4.5 min) and gel (33.0 ± 4.2 min) conditions when compared to the water condition (39.5 ± 7.9 min). Moreover, no difference was observed in TT performance between CHO conditions (P=1.00). In conclusion, potato and gel ingestion equally sustained blood glucose concentrations and TT performance. Our results support the effective use of potatoes to support race performance for trained cyclists.",
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T1 - Potato ingestion is as effective as carbohydrate gels to support prolonged cycling performance

AU - Salvador, Amadeo F.

AU - Mckenna, Colleen F.

AU - Alamilla, Rafael A.

AU - Cloud, Ryan M. T.

AU - Keeble, Alexander R.

AU - Miltko, Adriana

AU - Scaroni, Susannah E.

AU - Beals, Joseph W.

AU - Ulanov, Alexander V.

AU - Dilger, Ryan N.

AU - Bauer, Laura L.

AU - Broad, Elizabeth M.

AU - Burd, Nicholas A.

PY - 2019/10/17

Y1 - 2019/10/17

N2 - Carbohydrate (CHO) ingestion is an established strategy to improve endurance performance. Race fuels should not only sustain performance, but also be readily digested and absorbed. Potatoes are a whole-food based option that fulfills these criteria yet their impact on performance remains unexamined. We investigated the effects of potato purée ingestion during prolonged cycling on subsequent performance versus commercial CHO gel or a water-only condition. Twelve cyclists (70.7 ± 7.7 kg, 173 ± 8 cm, 31± 9 years, 22 ± 5.1 % body fat; mean ± SD) with average peak oxygen consumption (VO2PEAK)of 60.7 ± 9.0 mL/kg/min performed a 2 h cycling challenge (60-85%VO2PEAK) followed by a time trial (TT, 6kJ/kg body mass) while consuming potato, gel, or water in a randomized-crossover design. The race fuels were administered with U-[13C6]glucose for an indirect estimate of gastric emptying rate. Blood samples were collected throughout the trials. Blood glucose concentrations were higher (P<0.001) in potato and gel conditions when compared to water condition. Blood lactate concentrations were higher (P=0.001) after the TT completion in both CHO conditions when compared to water condition. TT performance was improved (P=0.032) in both potato (33.0 ± 4.5 min) and gel (33.0 ± 4.2 min) conditions when compared to the water condition (39.5 ± 7.9 min). Moreover, no difference was observed in TT performance between CHO conditions (P=1.00). In conclusion, potato and gel ingestion equally sustained blood glucose concentrations and TT performance. Our results support the effective use of potatoes to support race performance for trained cyclists.

AB - Carbohydrate (CHO) ingestion is an established strategy to improve endurance performance. Race fuels should not only sustain performance, but also be readily digested and absorbed. Potatoes are a whole-food based option that fulfills these criteria yet their impact on performance remains unexamined. We investigated the effects of potato purée ingestion during prolonged cycling on subsequent performance versus commercial CHO gel or a water-only condition. Twelve cyclists (70.7 ± 7.7 kg, 173 ± 8 cm, 31± 9 years, 22 ± 5.1 % body fat; mean ± SD) with average peak oxygen consumption (VO2PEAK)of 60.7 ± 9.0 mL/kg/min performed a 2 h cycling challenge (60-85%VO2PEAK) followed by a time trial (TT, 6kJ/kg body mass) while consuming potato, gel, or water in a randomized-crossover design. The race fuels were administered with U-[13C6]glucose for an indirect estimate of gastric emptying rate. Blood samples were collected throughout the trials. Blood glucose concentrations were higher (P<0.001) in potato and gel conditions when compared to water condition. Blood lactate concentrations were higher (P=0.001) after the TT completion in both CHO conditions when compared to water condition. TT performance was improved (P=0.032) in both potato (33.0 ± 4.5 min) and gel (33.0 ± 4.2 min) conditions when compared to the water condition (39.5 ± 7.9 min). Moreover, no difference was observed in TT performance between CHO conditions (P=1.00). In conclusion, potato and gel ingestion equally sustained blood glucose concentrations and TT performance. Our results support the effective use of potatoes to support race performance for trained cyclists.

KW - carbohydrate

KW - exercise

KW - sports nutrition

KW - endurance

U2 - 10.1152/japplphysiol.00567.2019

DO - 10.1152/japplphysiol.00567.2019

M3 - Article

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JO - Journal of Applied Physiology Respiratory Environmental and Exercise Physiology

JF - Journal of Applied Physiology Respiratory Environmental and Exercise Physiology

SN - 8750-7587

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