Interval Training and Performance in Mountain Bikers

NCT01944865 | Completed

• 1 other identifier: UGF
• Study Type: interventional
• Target: 16
• Locations: 1 country
• Sites: 1

Brief 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 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.

Conditions

Physical Activity

Keywords

Aerobic Interval Training; Supramaximal Training

Outcome Measures

Primary Outcomes (1)

• 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%.

  Six weeks

Study Arms (2)

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.

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).

Other: Intermittent Training

Interventions

Interval Training OTHER

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.

Interval Training

Intermittent Training OTHER

The riders of intermittent training group completed 8 to 12 repetitions of 30 s all-out with 4 min of active recovery.

Intermittent Training

Eligibility Criteria

• Age: 20 Years - 50 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Specific training in the mountain bike sport

You may not qualify if:

• Use of pharmacological substances

Sponsors & Collaborators

• Universidade Gama Filho: lead

Study Sites (1)

Gama Filho University

Rio de Janeiro, Rio de Janeiro, Brazil

Location

Related Publications (1)

• 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.

  PMID: 26789124 DERIVED

MeSH Terms

Conditions

Motor Activity

Interventions

High-Intensity Interval Training

Condition Hierarchy (Ancestors)

Behavior

Intervention Hierarchy (Ancestors)

Physical Conditioning, Human; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Tony M Santos, PhD

  Gama Filho University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Ph.D.

Study Record Dates

• First Submitted: August 31, 2013
• First Posted: September 18, 2013
• Study Start: October 1, 2010
• Primary Completion: August 1, 2013
• Study Completion: August 1, 2013
• Last Updated: September 18, 2013

Record last verified: 2013-09

Locations

BR (1)