The Effect of Exercise Intensity on Adherence

Cardiovascular Health Clinical Trial

Official title:

The Effect of Exercise Intensity on Adherence

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT05057416
• Other study ID #: 119244
• Status: Not yet recruiting
• Phase: N/A
• Start date: December 2, 2021
• Est. completion date: August 2022

Study information

• Verified date: November 2021
• Source: Western University, Canada
• Contact: Magdalena Helbin, BSc
• Phone: 16476241276
• Email: magdalena.helbin[@]gmail.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study aims to advance the knowledge of a novel strategy of exercise to help people achieve the health benefits of exercise in less commitment time. As opposed to the traditionally recommended long periods (60 min) of moderate intensity exercise, this study will examine the effects of two exercise programs which consist of different intensities and repeated bouts of short intense exercise followed by rest periods. By incorporating short intense bouts of exercise, it may be possible that individuals enjoy this strategy of exercising more, which may influence them to continue to train in this way, increase their exercise levels in daily life and achieve exercise-related health benefits. Overall healthy women will be divided into a novel sprint interval training group or a high intensity interval training group or a traditional moderate intensity continuous training group. To evaluate the success of each training approach, a health-related quality of life questionnaire, one mile run test, weight, strength test and adherence to study requirements will be assessed over a 6-week period. The investigators hypothesize that the sprint interval training group will experience greatest strength measurements, will lose most body fat, have the greatest exercise benefits and will enjoy the novel training program more and will therefore adhere to the program more than the moderate continuous training group.

Description:

Since the majority of the population is inactive, this study is being done to develop a better strategy that might encourage people to exercise more and improve their health. The current physical activity guidelines suggest that adults aged 18-64 should perform at least 150 minutes of moderate- to vigorous-intensity aerobic physical activity per week . However, 84% of the Canadian population is insufficiently active. The large percentage of inactive individuals may be due to the daunting expectation that individuals must exercise for long periods of time to achieve health benefits, and many individuals report not having enough time. However, studies have shown that exercising for short, repeated bouts of intense exercise resulted in improved cardiometabolic health to the same extent as traditional endurance training, despite lower exercise volume. One study found that the prescription for a higher frequency of exercise significantly increased the accumulation of exercise without a negative effect on adherence. Further, in another study, participants who performed short intense bouts of physical activity have shown greater adherence than participants who were performing traditional exercise, working at a moderate intensity for a prolonged exercise period (89% and 71%, respectively). None of the studies mentioned above examined time matched exercise groups and included varying intensities of exercise, and collected data through virtual means, mimicking the natural environment of participants. The investigators believe that the proposed study will address these concerns and therefore advance the knowledge of sprint interval training.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 30
• Est. completion date: August 2022
• Est. primary completion date: January 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 20 Years to 49 Years

Eligibility

Inclusion Criteria:

• Female

• Participants must be between 20-49 years old

• Sedentary- completing less than 1 hour per week of leisure time physical activity over the prior 12 months and/or not meeting the CSEP guidelines of 150 minutes of moderate to vigorous physical activity per week

• Generally healthy males and females, no racial or gender bias.

Exclusion Criteria:

• Male

• Diagnosis of diabetes

• Taking glucose lowering medication

• Uncontrolled hypertension blood pressure >160/90

• History of heart disease

• Previous myocardial infarction or stroke

• Contraindications of exercise

Related Conditions & MeSH terms

• Cardiometabolic Health
• Cardiovascular Health
• Exercise Adherence
• Physical Activity Enjoyment

Intervention

Behavioral:
• Exercise Adherence
Our current study will compare three exercise groups which will all vary in intensity. Participants will be randomly assigned to one of the three groups. Two groups will be assigned to high intensity bouts of exercise with an active rest between, and one group will perform moderate intensity continuous training without resting. All groups will exercise for 20 minutes. Exercise adherence and it will be measured by a self-report online Google Document.

Locations

Country	Name	City	State
Canada	Exercise Nutrition Laboratory (Western University)	London	Ontario
Canada	Exercise Nutrition Laboratory, Western University	London	Ontario

Sponsors (1)

Lead Sponsor	Collaborator
Western University, Canada

Country where clinical trial is conducted

Canada, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Physical Activity Enjoyment	The enjoyment that participants experienced during the assigned intensity of exercise measured by the Physical Activity Enjoyment Scale (PAES).	8 weeks
Primary	Adherence to Exercise	Participants will report whether or not they have continued with the plan throughout the study duration through a weekly exercise diary.	8 weeks
Secondary	Exercise endurance	Participant cardiovascular endurance will be measured through a one-mile run test.	8 weeks

External Links

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