The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Post-Exercise Ingestion of Low or High Molecular Weight Glucose Polymer Solution Does Not Improve Cycle Performance in Female Athletes
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Mock, MG, Hirsch, KR, Blue, MNM, Trexler, ET, Roelofs, EJ, and Smith-Ryan, AE. Postexercise ingestion of low or high molecular weight glucose polymer solution does not improve cycle performance in female athletes. J Strength Cond Res 35(1): 124–131, 2021—The current study sought to evaluate the effects of postexercise ingestion of a high molecular weight (HMW) glucose polymer solution compared with an isocaloric low molecular weight (LMW) solution or placebo (PLA) on subsequent cycling performance in female athletes. In a randomized, double-blind, placebo-controlled, cross-over design, 10 competitive female cyclists (Mean ± SD ; Age = 25.7 ± 5.0 years; V̇ o 2 peak = 49.7 ± 4.3 ml·kg −1 ·min −1 ) completed 3 testing sessions separated by 7–10 days. Visits consisted of a ride-to-exhaustion (RTE) at 75% V̇ o 2 peak, followed by immediate consumption of 700 ml containing either: 1.2 g·kg −1 LMW (maltodextrin/dextrose/fructose); 1.2 g·kg −1 HMW (Vitargo); or 0.066 g·kg −1 PLA (noncaloric flavoring). After 2 hours of rest, subjects performed a 15-minute time trial (TT). Respiratory exchange ratio (RER) was assessed via indirect calorimetry during exercise. Total body water (TBW) was measured using bioelectrical impedance to assess fluid balance. When covaried for estrogen, there was no treatment effect on distance (km; p = 0.632) or power output (watts; p = 0.974) during the 15-minute TT. Respiratory exchange ratio was not significantly different during the LMW and HWM TTs ( p > 0.999), but both were significantly higher than PLA ( p = 0.039, p = 0.001, respectively). Changes in total body water pre-exercise to postexercise were not significantly different between trials ( p = 0.777). Despite benefits of HMW on cycling performance previously reported in males, current results demonstrate no ergogenic effect of HMW or LMW in females. Sex differences in substrate utilization may account for the discrepancy, and further research involving performance nutrition for female athletes is merited.
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“Importantly, the majority of the literature suggests that utilizing a high molecular weight solution can impart changes in oxidized substrates, or patterns of fuel usage, but appears to have no ergogenic effect on performance in males or females [63, 456–459].”
From ISSN exercise & sports nutrition review update: research & recommendations (2018) · cites this paper as [456]
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Cites
Making Meaningful Inferences About Magnitudes
Batterham, A. M., & Hopkins, W. G. (2006) · International Journal of Sports Physiology and Performance · doi:10.1123/ijspp.1.1.50 · Cited by 2,186
Guidelines to classify subject groups in sport-science research
Pauw, K. D., Roelands, B., Cheung, S. S., de Geus, B., Rietjens, G., & Meeusen, R. (2013) · International Journal of Sports Physiology and Performance · doi:10.1123/ijspp.8.2.111 · Cited by 680
Gender differences in substrate for endurance exercise
Tarnopolsky, L. J., MacDougall, J. D., Atkinson, S. A., Tarnopolsky, M. A., & Sutton, J. R. (1990) · Journal of Applied Physiology · doi:10.1152/jappl.1990.68.1.302 · Cited by 470 · cited 1×
“Trials consisted of a glycogen-depleting rideto-exhaustion (RTE) at a workload set at 75% of their V_ O2peak power output (PPO) in watts (W) (7,29), followed by immediate consumption of one of 3 solutions (700 ml of: 1.”
MethodIndirect calorimetry: methodological and interpretative problems
Simonson, D. C., & DeFronzo, R. A. (1990) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.1990.258.3.e399 · Cited by 383
Fuel metabolism in men and women during and after long-duration exercise
Horton, T. J., Pagliassotti, M. J., Hobbs, K., & Hill, J. O. (1998) · Journal of Applied Physiology · doi:10.1152/jappl.1998.85.5.1823 · Cited by 370
Fluid and carbohydrate ingestion independently improve performance during 1 h of intense exercise
BELOW, P. R., MORA-RODR??GUEZ, R., GONZ??LEZ-ALONSO, J., & COYLE, E. F. (1995) · Medicine & Science in Sports & Exercise · doi:10.1249/00005768-199502000-00009 · Cited by 352
The use of carbohydrates during exercise as an ergogenic aid
Cermak, N. M., & van Loon, L. J. C. (2013) · Sports Medicine · doi:10.1007/s40279-013-0079-0 · Cited by 300
Carbohydrate loading and metabolism during exercise in men and women
Tarnopolsky, M. A., Atkinson, S. A., Phillips, S. M., & MacDougall, J. D. (1995) · Journal of Applied Physiology · doi:10.1152/jappl.1995.78.4.1360 · Cited by 278 · cited 1×
“Previous data have reported significant differences between men and women in glycogen storage and subsequent cycling performance after a CHO loading protocol, with females demonstrating a much lower capacity for glycogen supercompensation, and only marginal improvement in exercise capacity compared with males (31).”
BackgroundThe effect of osmolality and carbohydrate content on the rate of gastric emptying of liquids in man.
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“It is likely that sex plays a stronger determining role in glucose MCR and glycogen utilization (10); other factors to consider are training status, chronic dietary consumption, and age.”
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ISSN exercise & sports nutrition review update: research & recommendations
Kerksick, C. M., Wilborn, C. D., Roberts, M. D., Smith-Ryan, A., Kleiner, S. M., Jäger, R., Collins, R., Cooke, M., Davis, J. N., Galvan, E., et al. (2018) · Journal of the International Society of Sports Nutrition · doi:10.1186/s12970-018-0242-y · Cited by 945
Self-citationBonilla, D. A., Pérez-Idárraga, A., Odriozola-Martínez, A., & Kreider, R. B. (2020) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph18010103 · Cited by 77
Carbohydrate supplementation: A critical review of recent innovations
Baur, D. A., & Saunders, M. J. (2021) · European Journal of Applied Physiology · doi:10.1007/s00421-020-04534-y · Cited by 22
Metadata
- Authors
- Mock, M. G., Hirsch, K. R., Blue, M. N. M., Trexler, E. T., Roelofs, E. J., & Smith-Ryan, A. E.
- Affiliations
- University of North Carolina at Chapel Hill (US)
- Meredith College (US)
- Department of Exercise and Sport Science, Applied Physiology Laboratory, University of North Carolina, Chapel Hill, North Carolina;
- Venue
- Journal of Strength & Conditioning Research
- Published
- 2021-01
- Volume
- 35
- Issue
- 1
- Pages
- 124-131
- ISSN
- 1064-8011 (ISSN-L)
- PMC
- PMC6110985
- OpenAlex
- W2791360161
- Cited by
- 8
- References
- 36
- Citations by year
- 2024: 2 · 2022: 3
- FWCI
- 0.42
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- The Journal of Strength and Conditioning Research (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (KL2TR001109)
- National Center for Advancing Translational Sciences
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Health Sciences › Medicine › Physiology (medical) › Thermoregulation and physiological responses
- Keywords
- maltodextrin, women cyclists, cycling performance, ergogenic aids, carbohydrate supplementation, respiratory exchange ratio, total body water, fluid balance, sex differences, time trial performance, estrogen, female athletes
- MeSH terms
- Adult, Bicycling, Double-Blind Method, Eating, Female, Glucans, Humans, Male, Molecular Weight, Polymers, Cross-Over Studies, Young Adult, Athletes
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