High-intensity Interval Training on Cardiorespiratory Fitness in Overweight Women

February 1, 2019 updated by: Victor Hugo Arboleda Serna, Universidad de Antioquia

Effect of Low-volume High-intensity Interval Training on Cardiorespiratory Fitness and Total Body Fat in Overweight Women

High-intensity interval training (HIIT) is currently considered one of the most effective strategies to improved cardiorespiratory fitness, which is recognized as a protective factor for cardiovascular diseases and metabolic diseases such as overweight and obesity. However, current evidence is still limited and requires clarity (frequency, time per session and intensity) regarding to greater increases attributed to HIIT.

The aim of this study is to compare the effect of a low-volume high-intensity interval training versus a moderate-intensity continuous exercise on maximal oxygen consumption in overweight women 18 to 44 years old.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Thirty-six women will be randomly assigned to one of two aerobic exercise on a real-life setting supervised for a physical activity instructor. The interventions will performed three times a week for ten-weeks (on alternate days).

The first two weeks will correspond to the conditioning period (30 minutes between 55-65% of maximum heart rate (HRmax). From week three, 18 participants will perform 30 minutes of continuous exercise at an intensity between 65-75 % of HRmax, and the remaining 18 will complete 21.5 minutes of interval exercise at an intensity between 90-95% of HRmax, with recoveries between 50-55% of HRmax.

All Participants will be evaluated to measure their maximal oxygen consumption, total body fat, waist circumference, body mass index, systolic blood pressure, diastolic blood pressure, prior to start the interventions and at the end of the program (week 11).

Study Type

Interventional

Enrollment (Actual)

35

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

Female

Description

Inclusion Criteria:

  • Overweight (≥ 25 kg/m-2) women 18 to 44 years.
  • Healthy volunteers.
  • Perform ≤ 600 Met/min/week.

Exclusion Criteria:

  • Perform high-intensity interval exercise in the last six month.
  • Smoker.
  • History of asthma.
  • History of diabetes.
  • History of hypertension.
  • History of cardiovascular disease.
  • History of coronary heart disease.
  • Arrhythmias.
  • Personal history of surgical procedures in the last three months
  • Uncontrolled non-communicable diseases
  • 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.
  • Psychoactive drug abuse.

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: High-intensity interval training
Other: High-intensity interval training
21.5 minutes of high-intensity interval exercise at an intensity between 90-95 of HRmax (15x30 s), with recoveries at 50-60% of HRmax (14x60 s). 24 sessions, 3x weekly of walking and running outdoors on a sports field in a supervised manner.
Active Comparator: Moderate-intensity continuous exercise
Other: Comparator: Moderate-intensity continuous exercise
30 minutes of continuous exercise at an intensity between 65-75% of HRmax. 24 sessions, 3x weekly of walking and jogging outdoors on a sports field in a supervised manner

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in maximal oxygen consumption
Time Frame: Baseline and after 10 weeks
Maximal oxygen consumption will be obtained using a graded exercise test on a treadmill (Trackmaster® model TMX 425C) using a portable K4b2 gas analyzer (Cosmed Inc., IL, USA)
Baseline and after 10 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in total body fat
Time Frame: Baseline and after 10 weeks
Total body fat will be obtained using an Omron® HBF-510 (Omron Healthcare, Inc. Bannockburn, IL, USA) bioelectrical impedance machine.
Baseline and after 10 weeks

Collaborators and Investigators

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

Sponsor

Universidad de Antioquia

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 (Actual)

August 14, 2017

Primary Completion (Actual)

November 30, 2018

Study Completion (Actual)

November 30, 2018

Study Registration Dates

First Submitted

September 28, 2017

First Submitted That Met QC Criteria

October 2, 2017

First Posted (Actual)

October 4, 2017

Study Record Updates

Last Update Posted (Actual)

February 4, 2019

Last Update Submitted That Met QC Criteria

February 1, 2019

Last Verified

February 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HIIT2-AFIS-UdeA

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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