Interval Versus Continuous Training in Healthy Adults

June 22, 2016 updated by: Victor Hugo Arboleda Serna, Universidad de Antioquia

Effects of a High-intensity Interval Training Program Compared to a Moderate Intensity Program in Adults 18-44 Years

Aerobic exercise produces increases in cardiorespiratory fitness (CF), which constitute a protective factor for cardiovascular disease and all-cause mortality. Therefore, aerobic exercise is a key strategy to promoting cardiovascular. There is some evidence that aerobic high intensity interval training may lead to greater increases in CF compared with continuous moderate-intensity training.

The main objective of this study is to examine the effects of an aerobic high intensity training program versus a continuous moderate intensity training program on CF in men 18 to 44 years.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Forty-four individuals will be randomly assigned to one of two aerobic training programs on a treadmill. Both groups will performed three times a week for eight-weeks (on alternate days). Half will run 40 minutes of continuous exercise at an intensity between 65-75% of maximum heart rate, and the remaining 22 will complete 21.5 minutes of interval exercise at an intensity between 90-95% of maximum heart rate, with recoveries between 50-55 % of maximum heart rate. After each session both groups will complete eight strength exercises mainly including large muscle groups for two sets and 8-12 repetitions at an intensity equivalent to 60-70% of one repetition maximum (controlled by perceived effort). Rest between sets will be kept between 60 and 90 seconds.

All participants will be evaluated at the start and completion of the intervention for their maximal oxygen consumption, blood pressure, waist circumference, BMI, body composition, and steps per week.

Study Type

Interventional

Enrollment (Actual)

44

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

  • Colombia
    • Antioquia
      • Medellín, Antioquia, Colombia
        • Universidad de Antioquia

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

18 years to 44 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Perform aerobic exercise maximum 3 sessions per week

Exclusion Criteria:

  • Currently participating in an aerobic high intensity training program
  • Smoker
  • History of cardiovascular disease
  • History of coronary heart disease
  • Arrhythmias
  • Heart failure/insufficiency
  • Hypertension
  • Diabetes
  • Under medical treatment with anticoagulants, beta-blockers, calcium antagonists, bronchodilators, and/or steroids
  • Psychological, neuromotor and/or osteo-muscular conditions that may affect participation in an exercise program.

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Aerobic interval training

Interval exercise at an intensity between 90-95% of maximum heart rate (15x30 s), with recoveries at an equivalent speed to 50-55 % of maximal oxygen consumption at baseline (14x60 s).

24 training sessions, 3x weekly (on alternate days).
Behavioral: Aerobic interval training
Active Comparator: Continuous training

40 minutes of continuous exercise at an intensity between 65-75% of maximum heart rate.

24 training sessions, 3x weekly (on alternate days).
Behavioral: Continuous training

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change in maximal oxygen uptake
Time Frame: Baseline and 8-weeks
Baseline and 8-weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Change in systolic blood pressure
Time Frame: Baseline and 8-weeks
Baseline and 8-weeks
Change in diastolic blood pressure
Time Frame: Baseline and 8-weeks
Baseline and 8-weeks

Collaborators and Investigators

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

Sponsor

Universidad de Antioquia

Investigators

  • Principal Investigator: Víctor H Arboleda, MSc, Associate professor
  • Principal Investigator: Elkin F Arango, MD. MSc, Associate professor
  • Principal Investigator: Rubén D Gómez, PhD. MD, Professor
  • Principal Investigator: Yuri Feito, PhD, Assistant Professor

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

April 1, 2015

Primary Completion (Actual)

June 1, 2016

Study Completion (Actual)

June 1, 2016

Study Registration Dates

First Submitted

November 4, 2014

First Submitted That Met QC Criteria

November 6, 2014

First Posted (Estimate)

November 11, 2014

Study Record Updates

Last Update Posted (Estimate)

June 24, 2016

Last Update Submitted That Met QC Criteria

June 22, 2016

Last Verified

June 1, 2016

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • HIIT-1-UdeA

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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