The Effect of Consuming a Low‐Glycemic Index Lentil‐Based Sports Nutrition Bar on Recovery after a Soccer Match
Bibliographic record
Abstract
High glycemic‐index (GI) carbohydrates are superior to low glycemic index carbohydrates following an exercise session for the replenishment of glycogen stores; however, studies assessing the effect of GI of foods on recovery of exercise performance are mixed. We compared the effects of post‐exercise feeding with a low GI lentil‐based sports nutrition bar and a commercially available high GI sports nutrition bar, with similar macronutrient content, on recovery of performance after a simulated soccer match. Using a randomized, counterbalanced, crossover design, soccer players (n=7) consumed 1.5 g/kg available carbohydrate from a lentil‐based bar or a high GI bar immediately after a 90 minute simulated soccer match. Participants were required to consume the sports bars within 30 minutes of the end of the simulated soccer match. Participants consumed similar diets for the remainder of the day in the high‐ and low‐GI conditions. Participants returned to the laboratory the following morning to repeat the first half of the simulated soccer match for recovery performance measurements. During this simulated soccer match performance was assessed by speed during an agility course, speed during a ball dribbling drill, sprint speed during a 20m shuttle‐run test, ability to jump at maximal height (to simulate heading a ball) and shooting accuracy. Tests involving agility, ball‐dribbling, and sprinting were analyzed by magnitude‐based inferences, assuming a smallest substantial change in sprint time of 0.8% Results During the recovery day simulated soccer match, the mean difference in time between low‐GI and high‐GI conditions for the sprint (0.10s, 90% CI −0.17 to 0.38s), agility (0.16s; 90% CI −0.32 to 0.64s), and ball dribbling (0.34s, 90% CI −1.28 to 1.96s) tests represented a 61–68% chance that the low‐GI condition enhanced performance over the high‐GI condition. There was no difference between conditions for jump height or shooting accuracy. Despite previous findings that high‐GI carbohydrates might allow faster glycogen re‐synthesis after exercise, our results indicate consumption of a low‐GI sport nutrition bar may allow better recovery of performance after a simulated soccer match. Athletes can therefore consume low‐GI carbohydrates as a healthier food choice during recovery after soccer matches. Support or Funding Information Supported by the Saskatchewan Pulse Growers and Agriculture Agri‐Food Canada
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".