Interval Training and Performance in Mountain Bikers

September 13, 2013 updated by: Tony Meireles dos Santos, Universidade Gama Filho

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The study is a controlled and randomized trial.

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
      • Rio de Janeiro, Brazil
        • Gama Filho University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 50 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Specific training in the mountain bike sport

Exclusion Criteria:

  • Use of pharmacological substances

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Interval Training
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.
Other: Interval Training
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.
Experimental: Intermittent Training
The riders completed 8 to 12 repetitions of 30 s all-out with 4 min of active recovery (10-15 on the CR100 scale).
Other: Intermittent Training
The riders of intermittent training group completed 8 to 12 repetitions of 30 s all-out with 4 min of active recovery.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
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%.
Six weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Universidade Gama Filho

Investigators

  • Principal Investigator: Tony M Santos, PhD, Gama Filho University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2010

Primary Completion (Actual)

August 1, 2013

Study Completion (Actual)

August 1, 2013

Study Registration Dates

First Submitted

August 31, 2013

First Submitted That Met QC Criteria

September 13, 2013

First Posted (Estimate)

September 18, 2013

Study Record Updates

Last Update Posted (Estimate)

September 18, 2013

Last Update Submitted That Met QC Criteria

September 13, 2013

Last Verified

September 1, 2013

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • UGF

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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