Functional Impact of Interval Training on Muscle Mass and Strength in Obese Adults

August 27, 2021 updated by: Riphah International University

The primary objective was to investigate the effectiveness of interval training and to evaluate the best available method for measuring body composition and functional capacity.

Thirty obese subjects consecutively voluntarily participated in the current study. They ranked sedentary according to their level of activity (≥ 30-minute moderate physical activity 3days/wk). The training sessions were divided into the warm-up phase, training phase and a cool-down phase. The training programs were completed 3days/week for 12 weeks. Body composition was calculated by skinfold thickness method and bio-impedance before and after training. Similarly, aerobic capacities were measured by lactate threshold testing and by Astrand submaximal testing.

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

30

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

    • Punjab
      • Lahore, Punjab, Pakistan, 54000
        • Riphah Rehabilitation Center

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

30 years to 45 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 30 obese (BMI ≥ 30) and
  • Sedentary lifestyle subjects (sample size was calculated by using WHO sample size calculator)
  • Age 30-45 years and
  • Hypercholesteremia

Exclusion Criteria:

  • hypertension,
  • diabetes,
  • cardiovascular diseases
  • systemic diseases

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: Health Services Research
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Study Group
Participants were voluntarily participated by non-probability consecutive sampling. It was a one group study with a limitation of non-randomization. The interventional group had performed interval training for 12 weeks, 3 days/week (figure 1). They sedentary conferring to activity level (≥ 30-minute, 3 days/weeks, moderate-intensity physical activity). They were not participated in any interval training program before participating in the study from six months. Written consent was taken after demonstration of the purpose, procedure, and related pros and cons. They were instructed to participate regularly in interval training.
All individual of interventional group participated in an interval training program, which comprised of 3 days/week for twelve weeks. A booklet was given to each participant containing instructions and guideline about interval training. The interval training program was introduced as prescribed previously.17 After the workout, a cool down period of 5 minutes was given during which they perform paddling with low speed. All training program was supervised by a qualified physical therapist.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Anthropometric measurement (Body Mass Index)
Time Frame: 3 months

Body Mass Index:

BMI Weight Status Below 18.5 Underweight 18.5 - 24.9 Normal or Healthy Weight 25.0 - 29.9 Overweight 30.0 and Above Obese

3 months
Functional capacity
Time Frame: 3 Months

The functional capacity was assessed by lactate threshold level and by Astrand submaximal testing by using standardized protocol.

Lactate inflection point (LIP), is the exercise intensity at which the blood concentration of lactate and/or lactic acid begins to increase rapidly. It is often expressed as 85% of maximum heart rate or 75% of maximum oxygen intake.

3 Months
Anthropometric measurement (Lean body mass)
Time Frame: 3 months
Lean body mass:Lean body mass is calculated as the difference between total body weight and body fat weight, or more simply, the weight of everything except the fat. The range of lean body mass considered to be healthy is around 70% - 90% with women being towards the lower end of the range and men higher.
3 months
Functional Capacity
Time Frame: 3 months

The functional capacity was assessed by Astrand submaximal testing by using standardized protocol.

The Astrand Test is a submaximal cycle ergometer aerobic fitness test best suited in rehabilitation and health purposes. description: Athletes pedal on a cycle ergometer at a constant workload for 7 minutes. Heart rate is measured every minute, and the steady state heart rate is determined.

3 months

Collaborators and Investigators

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

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.

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)

June 5, 2019

Primary Completion (Actual)

August 28, 2019

Study Completion (Actual)

December 28, 2019

Study Registration Dates

First Submitted

December 30, 2020

First Submitted That Met QC Criteria

December 31, 2020

First Posted (Actual)

January 5, 2021

Study Record Updates

Last Update Posted (Actual)

August 30, 2021

Last Update Submitted That Met QC Criteria

August 27, 2021

Last Verified

August 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • REC/Lhr/338

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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