Effects of Fasted and Fed Exercise on Fat and Carbohydrate Oxidation During Exercise in Male Soccer Players
NCT07933315, Not applicable, Completed, Hacettepe University
Trial 10
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
| Field | Value | Source |
|---|---|---|
| Title | Effects of Fasted and Fed Exercise on Fat and Carbohydrate Oxidation During Exercise in Male Soccer Players | ClinicalTrials.gov |
| NCT number | NCT07933315 | ClinicalTrials.gov |
| Status | Completed | ClinicalTrials.gov |
| Phases | Not applicable | ClinicalTrials.gov |
| Enrollment | 11 participants, actual | ClinicalTrials.gov |
| Lead sponsor | Hacettepe University | ClinicalTrials.gov |
| Conditions | Metabolism Changes, Exercise, Energy Metabolism, Nutritional Intervention, Metabolic Flexibility | ClinicalTrials.gov |
| Interventions | Moderate-Intensity Cycling Under Fasted and Fed Conditions | ClinicalTrials.gov |
| First posted | 2026-11-12 | ClinicalTrials.gov |
| Last updated | 2026-11-12 | ClinicalTrials.gov |
Registered outcomes 8
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description | Source |
|---|---|---|---|---|
| Primary | Fat Oxidation Rate During Fasted and Fed Exercise | At 10-15 and 25-30 minutes after the start of each 30-minute cycling bout performed under fasted and fed conditions at Visit 4. | Fat oxidation rate (g/min) was calculated from oxygen uptake and carbon dioxide production measured by indirect calorimetry during cycling at 60% of V̇O₂max. Rates were calculated for two predefined periods, minutes 10-15 and 25-30, and compared between fasted and fed conditions. | ClinicalTrials.gov |
| Primary | Carbohydrate Oxidation Rate During Fasted and Fed Exercise | At 10-15 and 25-30 minutes after the start of each 30-minute cycling bout performed under fasted and fed conditions at Visit 4. | Carbohydrate oxidation rate (g/min) was calculated from oxygen uptake and carbon dioxide production measured by indirect calorimetry during cycling at 60% of V̇O₂max. Rates were calculated for two predefined periods, minutes 10-15 and 25-30, and compared between fasted and fed conditions. | ClinicalTrials.gov |
| Secondary | Energy Expenditure During Fasted and Fed Exercise | At 10-15 and 25-30 minutes after the start of each 30-minute cycling bout performed under fasted and fed conditions at Visit 4. | Energy expenditure was calculated from oxygen uptake and carbon dioxide production measured by indirect calorimetry during cycling at 60% of V̇O₂max. Rates were calculated for two predefined periods, minutes 10-15 and 25-30, and compared between fasted and fed conditions. | ClinicalTrials.gov |
| Secondary | Respiratory Exchange Ratio During Fasted and Fed Exercise | At 10-15 and 25-30 minutes after the start of each 30-minute cycling bout performed under fasted and fed conditions at Visit 4. | Respiratory exchange ratio (RER) was calculated as the ratio of carbon dioxide production (V̇CO₂) to oxygen uptake (V̇O₂), measured by indirect calorimetry during cycling at 60% of V̇O₂max. Mean RER values were calculated for minutes 10-15 and 25-30 of each exercise bout and compared between fasted and fed conditions. | ClinicalTrials.gov |
| Secondary | Heart Rate During Exercise | At 10-15 and 25-30 minutes after the start of each 30-minute cycling bout performed under fasted and fed conditions at Visit 4. | Heart rate, expressed in beats per minute (bpm), was assessed during 30-minute cycling bouts at 60% of maximal oxygen uptake under fasted and fed conditions. Heart rate responses were compared between nutritional conditions and across exercise time points. | ClinicalTrials.gov |
| Other | Test-Retest Reproducibility of Fat Oxidation Rate During Submaximal Exercise | 10-15 and 25-30 minutes after the onset of each 30-minute cycling trial performed at 60% of V̇O₂max under overnight-fasted conditions at Visits 2 and 3 (test and retest, respectively). | Fat oxidation rate (g/min) was calculated from respiratory gas exchange measurements obtained using indirect calorimetry during two identical 30-minute cycling trials at 60% of V̇O₂max under overnight-fasted conditions. Reproducibility between trials was evaluated using the intraclass correlation coefficient (ICC), coefficient of variation (CV%), standard error of measurement (SEM), and smallest detectable change at the 95% confidence level (SDC95). | ClinicalTrials.gov |
| Other | Test-Retest Reproducibility of Carbohydrate Oxidation Rate During Submaximal Exercise | 10-15 and 25-30 minutes after the onset of each 30-minute cycling trial performed at 60% of V̇O₂max under overnight-fasted conditions at Visits 2 and 3 (test and retest, respectively). | Carbohydrate oxidation rate (g/min) was calculated from respiratory gas exchange measurements obtained using indirect calorimetry during two identical 30-minute cycling trials at 60% of V̇O₂max under overnight-fasted conditions. Reproducibility between trials was evaluated using the intraclass correlation coefficient (ICC), coefficient of variation (CV%), standard error of measurement (SEM), and smallest detectable change at the 95% confidence level (SDC95). | ClinicalTrials.gov |
| Other | Test-Retest Reproducibility of Respiratory Exchange Ratio During Submaximal Exercise | 10-15 and 25-30 minutes after the onset of each 30-minute cycling trial performed at 60% of V̇O₂max under overnight-fasted conditions at Visits 2 and 3 (test and retest, respectively). | Respiratory exchange ratio (RER; dimensionless) was determined from the ratio of carbon dioxide production to oxygen uptake measured using indirect calorimetry during two identical 30-minute cycling trials at 60% of V̇O₂max under overnight-fasted conditions. Reproducibility between trials was evaluated using the intraclass correlation coefficient (ICC), coefficient of variation (CV%), standard error of measurement (SEM), and smallest detectable change at the 95% confidence level (SDC95). | ClinicalTrials.gov |
Outcomes 0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as | Source |
|---|
Results by group 0
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units | Source |
|---|
Participant flow 0
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted | Source |
|---|
Adverse events 0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
| Type | Event | Organ system | Group | Affected | At risk | Events | Source |
|---|
Adverse event totals 0
The totals the trial posted for each group.
| Total | Group | Affected | At risk | Source |
|---|
Papers 14
The papers the trial lists on ClinicalTrials.gov.
| PMID | Listed as | Source |
|---|---|---|
| 10198303 | BACKGROUND | PubMed |
| 14598198 | BACKGROUND | PubMed |
| 15333616 | BACKGROUND | PubMed |
| 17218895 | BACKGROUND | PubMed |
| 23395166 | BACKGROUND | PubMed |
| 24787031 | BACKGROUND | PubMed |
| 26213682 | BACKGROUND | PubMed |
| 27900134 | BACKGROUND | PubMed |
| 28467922 | BACKGROUND | PubMed |
| 29301367 | BACKGROUND | PubMed |
| 32747792 | BACKGROUND | PubMed |
| 32963340 | BACKGROUND | PubMed |
| 36603158 | BACKGROUND | PubMed |
| 39656953 | BACKGROUND | PubMed |
Grants 0
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.
| Project | Title | Principal investigators | Organization | Funder | Fiscal years | Source |
|---|
Trial comparisons 0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
| Comparison | Source |
|---|
Tests 0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
| Test | Named as | Source |
|---|
Source 5
| Field | Value | Source |
|---|---|---|
| Release | trials-2026-11-12-0.4.0 | ClinicalTrials.gov |
| Release manifest SHA-256 | 0f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4 | ClinicalTrials.gov |
| Registry capture | 2026-11-12 | ClinicalTrials.gov |
| Results copy, AACT | 2026-03-23 | ClinicalTrials.gov |
| NIH clinical studies file | 2026-11-13 | ClinicalTrials.gov |
Release trials-2026-11-12-0.4.0
ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.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.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
ClinicalTrials.gov: none stated ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
NIH RePORTER's clinical studies and project files: Public domain (NIH RePORTER)