Trial · NCT07904481
Effects of High-Intensity Interval Training (HIIT) on Physiological Responses in Alpine Skiers
NCT07904481, Not applicable, Completed, TUNC ILCIN
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Effects of High-Intensity Interval Training (HIIT) on Physiological Responses in Alpine Skiers. Trials, record NCT07904481. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07904481
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Effects of High-Intensity Interval Training (HIIT) on Physiological Responses in Alpine Skiers
- NCT number
- NCT07904481
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 40 participants, actual
- Lead sponsor
- TUNC ILCIN
- Conditions
- Athletic Performance
- Interventions
- High-Intensity Interval Training (HIIT), Regular Alpine Skiing and Strength Training
- First posted
- 2026-10-29
- Last updated
- 2026-10-29
Source ClinicalTrials.gov
Registered outcomes7
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Change in Peak Anaerobic Power | Baseline (1 week before intervention) and post-intervention (1 week after the 12-week training program). | Peak anaerobic power was assessed using the 30-second Wingate anaerobic test performed on a cycle ergometer (Monark Ergomedic 894E). The highest power output achieved during the test was recorded in watts (W). Changes from baseline to post-intervention were evaluated. |
| Primary | Change in Maximal Oxygen Uptake (VO2max) | Baseline (1 week before intervention) and post-intervention (1 week after the 12-week training program). | Maximal oxygen uptake (VO2max) was measured using a progressive maximal treadmill exercise test. VO2max was expressed in milliliters per kilogram of body weight per minute (mL/kg/min). Changes between baseline and post-intervention measurements were evaluated to assess the effects of the 12-week HIIT program on cardiorespiratory fitness. |
| Primary | Change in Maximum Heart Rate (HRmax) | Baseline (1 week before intervention) and post-intervention (1 week after the 12-week training program). | Maximum heart rate (HRmax) was measured during a progressive maximal treadmill exercise test. HRmax was recorded in beats per minute (bpm). Changes between baseline and post-intervention measurements were evaluated to assess the effects of the 12-week HIIT program on cardiovascular responses in alpine skiing athletes. |
| Primary | Change in Total Energy Output | Baseline (1 week before intervention) and post-intervention (1 week after the 12-week training program). | Total energy output was assessed using the 30-second Wingate anaerobic test performed on a cycle ergometer (Monark Ergomedic 894E). Total energy output was calculated as the cumulative mechanical work performed during the 30-second test and expressed in joules (J). Changes between baseline and post-intervention measurements were evaluated to determine the effects of the 12-week HIIT program on anaerobic performance. Kopyala |
| Secondary | Change in Power Drop | Baseline (1 week before intervention) and post-intervention (1 week after the 12-week training program). | Power drop was assessed using the 30-second Wingate anaerobic test performed on a cycle ergometer (Monark Ergomedic 894E). Power drop was calculated as the percentage decrease from peak power to minimum power during the test and expressed as a percentage (%). Changes between baseline and post-intervention measurements were evaluated to determine the effects of the 12-week HIIT program on anaerobic fatigue and performance. |
| Secondary | Change in Maximum Heart Rate (HRmax) Kopyala | Baseline (1 week before intervention) and post-intervention (1 week after the 12-week training program). | Maximum heart rate (HRmax) was measured during a progressive maximal treadmill exercise test. The highest heart rate recorded during the test was accepted as HRmax and expressed in beats per minute (bpm). Changes in HRmax between baseline and post-intervention assessments were evaluated to investigate the effects of the 12-week high-intensity interval training (HIIT) program on cardiovascular responses in alpine skiing athletes. |
| Other | Change in Respiratory Exchange Ratio (RER) | Baseline (1 week before intervention) and post-intervention (1 week after the 12-week training program). | Respiratory exchange ratio (RER) was assessed during a progressive maximal treadmill exercise test. RER was calculated as the ratio of carbon dioxide production (VCO2) to oxygen uptake (VO2) and expressed as a dimensionless value. Changes between baseline and post-intervention measurements were evaluated to assess the effects of the 12-week high-intensity interval training (HIIT) program on metabolic and cardiorespiratory responses in alpine skiing athletes. |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers7
The papers the trial lists on ClinicalTrials.gov.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07904481
GET https://conductscience.org/api/trials/v1/NCT07904481/registered