Menthol Mouth Rinsing Does Not Improve Cycling Performance In Thermoneutral Conditions
Bibliographic record
Abstract
Menthol Mouth Rinsing Does Not Improve Cycling Performance in Thermoneutral Conditions E.H. Gavel, 1, K.V. Hawke 1, H.M. Logan-Sprenger 1, 1Faculty of Health Sciences, Ontario Tech University, Oshawa ON, L1G 0C5, Canada PURPOSE: To determine if menthol mouth rinsing canis can improve independent time trial (TT) performance in male cyclists under thermoneutral conditions. METHODS: Participants (n = 9) cycled for 6 kilojoules(kJ)/kilogram of body mass in thermoneutral conditions (22 ± 0.6 °C, 36 ± 6% relative humidity) on two test occasions: with a cold water (CW) mouth rinse (MR) and with a CW plus menthol (MEN) MR (CW + MEN). The MR occurred immediately before the TT, and at 15, 30, 45, 60, 75, and 90% of kJ completed. Capillary blood lactate (BLa) was collected pre-and post-TT, whereas Ratings of Perceived Exertion (RPE, Borg 6-20) and thermal sensation (TS) were recorded every 15% of work completed and at the end of the TT. RESULTS: TT performance did not significantly improve with CW + MEN MR compared to CW (3.1 ± 6.7%, p = 0.27, d = 0.39, 95% CI = -81.57 to 251.4 sec). Furthermore, there were no significant differences in time splits at 15, 30, 45, 60, 75, and 90% of kJ completed (p > 0.05). Mean power output (Watts(W)ave) was not significantly different in the CW + MEN trial (2.9 ± 6.7%, p = 0.21, d = 0.45, 95% CI = -3.87 to 15.2 W), and there was no significant difference at 15, 30, 45, 60, 75, and 90% of kJ completed (p > 0.05). Furthermore, there were no significant differences in maximal end BLa accumulation (p = 0.913), or BLa pre-post differences (p = 0.852). There was a significant difference in mean RPE (CW + MEN, 15.3 ± 4.1 vs. CW, 14.9 ± 4.0, p = <0.0001, d = 0.49, 95% CI = -0.62 to -0.22) between the trials. TS did not significantly differ (CW + MEN, 2.0 ± 0.4 vs. CW, 1.9 ± 0.3, p = 0.280, d = 0.13, 95% CI = -0.2 to 0.06). CONCLUSION: These results suggest a non-thermal cooling agent does not improve TT performance or alter thermal sensation during endurance exercise in thermoneutral conditions in male cyclists. Instead, however, the menthol mouth rinseMR appears to increase RPE for an equivalent effort when exercising in thermoneutral conditions.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".