Physical ActivityNCT01944865
Interval Training and Performance in Mountain Bikers
A study testing Interval Training and Intermittent Training in people with Physical Activity, run by Universidade Gama Filho at 1 site in Brazil.
Trial summary
The aerobic fitness is important for mountain bikers, but riders should also be able to generate maximal and supramaximal efforts in some crucial phases of the competition. Although there is an increase interest in high-intensity aerobic training, to investigators knowledge, there are no studies examining the effects… Read more about this study
- Who is it for?
- Ages 20 to 50 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Physical Activity
- What is being tested?
- Interval Training and Intermittent Training
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 16 participants
- Where
- 1 siteBrazil
- Study dates
- Oct 2010to Aug 2013
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 50 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Specific training in the mountain bike sport
Who cannot join
- Use of pharmacological substances
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effect of Intermittent Versus Interval Training on Mountain Bike Cross-country Performance: a Parallel-group Randomized Trial
The aerobic fitness is important for mountain bikers, but riders should also be able to generate maximal and supramaximal efforts in some crucial phases of the competition. Although there is an increase interest in high-intensity aerobic training, to investigators knowledge, there are no studies examining the effects of interval (INTV) or intermittent training (INTM) in mountain bikers. The aim of this study was to compare the effects of INTV and INTM on aerobic fitness variables (peak power output, Wmax, lactate threshold, and onset of blood lactate accumulation) but more importantly on performance as measured using a controlled mountain bike race, i.e. simulation. The investigators hypothesized that INTV and INTM training were equally effective in improving Wmax, Lactate threshold and onset of blood lactate accumulation, but INTV was superior in enhancing performance in mountai bike race simulation.This hypothesis is due to studies that have shown higher gains in performance with long duration of aerobic high intensity interval training in comparison to the shorter training at a higher intensity.
Read the detailed description
The study is a controlled and randomized trial.
- Conditions
- Physical Activity
- Being tested
- Interval Training, Intermittent Training
- Keywords
- Aerobic Interval Training, Supramaximal Training
- Medical subject headings
- Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Interval TrainingOther
The interval training group consisted of 7 to 10 repetitions of 4-6 min at the highest intensity sustainable, the active recovery was 4-6 min in intensity from 10 to 15 of scale of perceived exertion CR100.
Intermittent TrainingOther
The riders of intermittent training group completed 8 to 12 repetitions of 30 s all-out with 4 min of active recovery.
| Study group | Role | What they receive |
|---|---|---|
| Interval Training | Experimental | The INTV consisted of 7 to 10 repetitions of 4-6 min at the highest intensity sustainable, and in the last 30 s of each repetition was performed a maximal sprint, the active recovery was 4-6 min in intensity from 10 to 15 of scale of perceived exertion CR100. Receives: Other: Interval Training |
| Intermittent Training | Experimental | The riders completed 8 to 12 repetitions of 30 s all-out with 4 min of active recovery (10-15 on the CR100 scale). Receives: Other: Intermittent Training |
What is being measured
The primary outcome is the main question the study is designed to answer.
Interval Training and Performance in Mountain Bikers
The aim of this study was to compare the effects of interval (INTV) and intermittent training (INTM) on aerobic fitness variables (peak power output, Wmax, lactate threshold, and onset of blood lactate accumulation) and performance as measured using a controlled MTB race, i.e. simulation. Pre to post differences were examined using two-way ANOVA, with a factor time on two levels (pre, post), and a factor group on two levels (INTV and INTM). Differences between groups post-training were also analyzed with ANCOVA using the pre-training values as covariate. These differences were calculated after log transforming the dependent variables. The difference between groups in the primary outcome (performance) was also analyzed using a magnitude-based inferences approach. The smallest worthwhile difference for the performance was considered to be 1%.
Measured: Six weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Sep 2013 (estimated)
- Study startOct 2010
- Primary completionAug 2013
- Study completionAug 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Physical ActivityStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 16 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidade Gama Filho
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Tony Meireles dos Santos, Universidade Gama Filho
- Investigators
- Tony M Santos, PhD, Principal investigator, Gama Filho University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01944865
- Sponsor's protocol ID
- UGF
- Status last verified
- Sep 2013
- First submitted
- 31 Aug 2013
- Last updated
- 18 Sep 2013
- Results posted
- No
- Data monitoring committee
- No
Publications
Inoue A, Impellizzeri FM, Pires FO, Pompeu FA, Deslandes AC, Santos TM. Effects of Sprint versus High-Intensity Aerobic Interval Training on Cross-Country Mountain Biking Performance: A Randomized Controlled Trial. PLoS One. 2016 Jan 20;11(1):e0145298. doi: 10.1371/journal.pone.0145298. eCollection 2016.
PubMed 26789124
Study at a glance
From the registry record, last updated by the sponsor on 18 Sep 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Intermittent Versus Interval Training on Mountain Bike Cross-country Performance: a Parallel-group Randomized Trial
- ClinicalTrials.gov ID
- NCT01944865
- Acronym / sponsor ID
- UGF
- Conditions
- Physical Activity
- Keywords
- Aerobic Interval Training, Supramaximal Training
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 16 participants (actual)
- Lead sponsor
- Universidade Gama FilhoUniversity, hospital or other
- Study start
- Oct 2010
- Primary completion
- Aug 2013 (actual)
- Study completion
- Aug 2013 (actual)
- First posted
- 18 Sep 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aerobic fitness is important for mountain bikers, but riders should also be able to generate maximal and supramaximal efforts in some crucial phases of the competition. Although there is an increase interest in high-intensity aerobic training, to investigators knowledge, there are no studies examining the effects of interval (INTV) or intermittent training (INTM) in mountain bikers. The aim of this study was to compare the effects of INTV and INTM on aerobic fitness variables (peak power output, Wmax, lactate threshold, and onset of blood lactate accumulation) but more importantly on performance as measured using a controlled mountain bike race, i.e. simulation. The investigators hypothesized that INTV and INTM training were equally effective in improving Wmax, Lactate threshold and onset of blood lactate accumulation, but INTV was superior in enhancing performance in mountai bike race simulation.This hypothesis is due to studies that have shown higher gains in performance with long duration of aerobic high intensity interval training in comparison to the shorter training at a higher intensity.
Detailed description
The study is a controlled and randomized trial.
Study design
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Interval Training | Experimental | Other: Interval TrainingThe INTV consisted of 7 to 10 repetitions of 4-6 min at the highest intensity sustainable, and in the last 30 s of each repetition was performed a maximal sprint, the active recovery was 4-6 min in intensity from 10 to 15 of scale of perceived exertion CR100. |
| Intermittent Training | Experimental | Other: Intermittent TrainingThe riders completed 8 to 12 repetitions of 30 s all-out with 4 min of active recovery (10-15 on the CR100 scale). |
Who may qualify
- Ages
- 20 to 50 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Specific training in the mountain bike sport
Key exclusion criteria (1 listed)
- Use of pharmacological substances
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Interval TrainingThe interval training group consisted of 7 to 10 repetitions of 4-6 min at the highest intensity sustainable, the active recovery was 4-6 min in intensity from 10 to 15 of scale of perceived exertion CR100. | Other | Interval Training |
| Intermittent TrainingThe riders of intermittent training group completed 8 to 12 repetitions of 30 s all-out with 4 min of active recovery. | Other | Intermittent Training |
Primary outcome
Interval Training and Performance in Mountain Bikers
Time frame: Six weeks
The aim of this study was to compare the effects of interval (INTV) and intermittent training (INTM) on aerobic fitness variables (peak power output, Wmax, lactate threshold, and onset of blood lactate accumulation) and performance as measured using a controlled MTB race, i.e. simulation. Pre to post differences were examined using two-way ANOVA, with a factor time on two levels (pre, post), and a factor group on two levels (INTV and INTM). Differences between groups post-training were also analyzed with ANCOVA using the pre-training values as covariate. These differences were calculated after log transforming the dependent variables. The difference between groups in the primary outcome (performance) was also analyzed using a magnitude-based inferences approach. The smallest worthwhile difference for the performance was considered to be 1%.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Sep 2013.
- Derived from this study: PubMed 26789124Inoue A, Impellizzeri FM, Pires FO, Pompeu FA, Deslandes AC, Santos TM. Effects of Sprint versus High-Intensity Aerobic Interval Training on Cross-Country Mountain Biking Performance: A Randomized Controlled Trial. PLoS One. 2016 Jan 20;11(1):e0145298. doi: 10.1371/journal.pone.0145298. eCollection 2016.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Tony M Santos, PhD principal investigator
Gama Filho University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Interval Training and Intermittent Training in people with Physical Activity, run by Universidade Gama Filho at 1 site in Brazil.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 Sep 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Interval Training and Performance in Mountain Bikers (time frame: Six weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01944865, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Sep 2013.