Interval Versus Continuous Training in Healthy Adults

Healthy Volunteers Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02288403
• Other study ID #: HIIT-1-UdeA
• Status: Completed
• Phase: N/A
• First received: November 4, 2014
• Last updated: June 22, 2016
• Start date: April 2015
• Est. completion date: June 2016

Study information

• Verified date: June 2016
• Source: Universidad de Antioquia
• Contact: n/a
• Is FDA regulated: No
• Health authority: Colombia: Institutional Review Board
• Study type: Interventional

Clinical Trial Summary

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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 44
• Est. completion date: June 2016
• Est. primary completion date: June 2016
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 18 Years to 44 Years

Eligibility

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 Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Healthy Volunteers

Intervention

Behavioral:
• Aerobic interval training

• Continuous training

Locations

Country	Name	City	State
Colombia	Universidad de Antioquia	Medellín	Antioquia

Sponsors (1)

Lead Sponsor	Collaborator
Universidad de Antioquia

Country where clinical trial is conducted

Colombia, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in maximal oxygen uptake		Baseline and 8-weeks	No
Secondary	Change in systolic blood pressure		Baseline and 8-weeks	No
Secondary	Change in diastolic blood pressure		Baseline and 8-weeks	No