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Completed

NCT Number: NCT03479177

Home-Based High Intensity Interval Training Intervention for Low Active Adults

The purpose of this study is to examine the effect of a home-based high intensity interval training intervention on exercise among low active adults (defined as engaging in exercise 90 minutes or less per week). Participants will be randomly assigned to a HIIT-based intervention or a wait-list control each lasting 12 weeks (participants in the wait-list control condition will have the option of receiving the HIIT intervention following the 12 weeks).

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Key information

Conditions

Cardiovascular Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Minnesota- Twin Cities

Minneapolis, Minnesota, 55455, United States

About this study

The intervention will be a 12-week high intensity interval training workout that will consist of home-based exercise sessions prescribed by the exercise counselor. The exercise sessions will be based on exercises the participant can confidentially engage in (regular push-ups vs. knee push-ups vs. wall push-ups). The goal will be to engage in three exercise sessions per week. The participants will receive weekly telephone calls during the first month and bi-weekly calls during months 2 and 3. The exercise counselor will also engage in dialogue that will motivate the participant to exercise.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 18 and older
  • Exercising for 90 minutes or less each week
  • Access to the Internet

Exclusion criteria

  • A history of coronary heart disease (history of myocardial infarction, symptoms of angina)
  • Orthopedic problems that would limit physical activity participation
  • Diabetes
  • Stroke
  • Osteoarthritis
  • Any other medical condition that may make physical activity unsafe or unwise.
  • Current or planned pregnancy
  • Psychosis or current suicidal ideation
  • Psychiatric hospitalization within the last six months

Treatment and study plan

High Intensity Interval Training

Behavioral

The exercise sessions will be based on exercises the participant can confidentially engage in (regular push-ups vs. knee push-ups vs. wall push-ups). The goal will be to engage in three exercise sessions per week. The participants will receive weekly telephone calls during the first month and bi-weekly calls during months 2 and 3. The exercise counselor will also engage in dialogue that will motivate the participant to exercise.

Primary outcomes

  1. Exercise minutes per week

    Time frame: Change from Baseline to 12 weeks

    Exercise minutes per week as assessed by an accelerometer for one week at baseline and 12 weeks. Higher reported minutes per week indicates a higher level of physical activity.

Secondary outcomes

  1. Biometrics

    Time frame: Change from Baseline to 12 weeks

    Body Mass Index will be calculated based on combining weight and height to report BMI as kg/m*2. The higher the number (level) of BMI, indicative of higher weight to height ratio.

  2. Social Support for Exercise Questionnaire

    Time frame: Change from Baseline to 12 weeks

    Assesses the degree to which the individuals has friends and family who support their exercise. Participants rate how often family member or friend expresses social support for physical activity with scale (0=none, 4=very often). Overall total score range 0- 104 with subscales for family (0-52) and friends (0-52).

  3. Physical Activity Self-efficacy Questionnaire

    Time frame: Change from Baseline to 12 weeks

    Assesses the amount of confidence the individual has to engage in exercise. Five questions, responses are on a scale from 1- 5 with participants indicating how confident they are on that scale of engaging in exercise in that situation (1=not at all confident, 5=extremely confident). Range of scores 5-25.

  4. Physical Activity Enjoyment Scale (PACES)

    Time frame: Change from Baseline to 12 weeks

    Assesses the degree to which the individual enjoys exercise. The Physical Activity Enjoyment Scale is an 18-item scale that assesses enjoyment for physical activity by asking participants to rate "how you feel at the moment about the physical activity you have been doing" using a 7- point bipolar Likert scale, from 1 (I enjoy it) to 7 (I hate it). Eleven items were negatively worded and seven items were positively worded. After reverse scoring the 11negatively worded items, an overall enjoyment for physical activity score is determined by summing the items, with a range of 18-126 being possible. Higher scores indicate higher enjoyment.

  5. Outcome Expectancies Questionnaire

    Time frame: Change from Baseline to 12 weeks

    Assesses what benefits the individual expects to gain from exercise. Responses on a scale from 1-5 (1=strongly disagree, 5=strongly agree), with participants indicating how strongly they agree to potential outcomes of exercise. Scores range from 9-45 with higher scores indicating greater outcome expectation.

Sponsors and collaborators

Lead sponsor

University of Minnesota

Other

Registry information

Official study title

The Effect of a Home-Based High Intensity Interval Training Intervention on Increasing Exercise Among Low Active Adults

Important dates

Study start
2018
Primary completion
2019
Study completion
2019
First posted
Mar 27, 2018
Registry last updated
Oct 9, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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