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Completed

NCT Number: NCT05875051

REHIT Versus SMIT in Sedentary Young Women

Reduced-exertion high-intensity training (REHIT) is a novel form of exercise known for being non-classical, time-efficient, and effective on different populations. However, REHIT was scarcely tested on sedentary women with mortality risks. The aim of the study is to compare the effects of REHIT versus short moderate-intensity training (SMIT) on functional capacity, resting heart rate (RHR), and activity enjoyment in sedentary young women.

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Key information

Conditions

Sedentary Behavior Behavior

Age range

18 year–25 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

University of Valencia

Valencia, 46010, Spain

About this study

The aim of the study is to compare the effects of reduced-exertion high-intensity training (REHIT) versus short moderate-intensity training (SMIT) on functional capacity, resting heart rate (RHR), and activity enjoyment in sedentary young women. Therefore, sedentary young women will be randomly allocated to either a: i) REHIT group or ii) SMIT group. Both groups will perform an intervention over 6 weeks duration for 10 minutes each session for 2 sessions/week, but with different intensities (REHIT or SMIT). Both forms of exercise will be conducted on a cycle ergometer with the subjects monitored throughout the intervention. Before and after the 3-week intervention, functional capacity (6-minute walking test) and RHR will be measured. Additionally, physical activity enjoyment (Physical Activity Enjoyment Scale) will be assessed after the intervention.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Women.
  • Age between 18 and 25 years old.
  • Those who score a low physical activity level (< 600 METS min/week) in the International Physical Activity Questionnaire-short form.

Exclusion criteria

  • Women who suffer from musculoskeletal.
  • Women who suffer from neurological diseases.
  • Those who are taking medications.

Treatment and study plan

Reduced-exertion high intensity training

Other

The intervention of the REHIT group will consist of three parts: i) 3 minutes of warm-up part at 50% of HRmax obtained in the effort test; ii) 3 min 20 sec to 3 min 40 sec of REHIT; and iii) 3 minutes of cool-down at 50% of HRmax obtained in the effort test. The REHIT part will consist of maximum cycling sprints of all-out exercise at 100% of the HRmax, increasing for up to 10 seconds, 15 seconds on week two and 20 seconds on week three. Then, 3 minutes of active rest at 50% of HRmax. Finally, 10 seconds of all-out exercise at 100% of the HRmax, rising to 15 seconds on week two and 20 seconds on week three.

Short moderate intensity training

Other

The SMIT group will receive a short moderate-intensity training with the same warm-up and cool-down exercises as the REHIT group. In addition, the main part of the session consisted of 6 minutes of moderate intensity exercise at 60-70% HRmax obtained in the effort test. In addition, the main part of the session increases 3 min every week as 6 min for the first 2 weeks, 9 min for the 3rd and 4th weeks, and 12 min for the last two weeks.

Primary outcomes

  1. Functional capacity

    Time frame: Baseline

    It will be measured using the 6-minutes walking test (6MWT). Participants will be instructed to walk as quickly as possible along a 30-meter hallway for a duration of six minutes without running. Then, the distance in meters they cover will be registered. The greater the number of meters run, the better the functional capacity.

  2. Functional capacity

    Time frame: After the intervention (3 weeks)

    It will be measured using the 6-minutes walking test (6MWT). Participants will be instructed to walk as quickly as possible along a 30-meter hallway for a duration of six minutes without running. Then, the distance in meters they cover will be registered. The greater the number of meters run, the better the functional capacity.

Secondary outcomes

  1. Resting heart rate

    Time frame: Baseline

    It will be measured with a patient monitor (ProAct PC-3000 Patient Monitor, Medisave, UK).

  2. Resting heart rate

    Time frame: After the intervention (3 weeks)

    It will be measured with a patient monitor (ProAct PC-3000 Patient Monitor, Medisave, UK).

  3. Physical activity enjoyment

    Time frame: Baseline

    To assess enjoyment, a modified version of the Physical Activity Enjoyment Scale (PACES) will be used. In this questionnaire, 17 items are scored on a 7-point bipolar scale, with an overall enjoyment score ranging from 17 (not enjoyable) to 68 (neutral) and 119 (enjoyable).

  4. Physical activity enjoyment

    Time frame: After the intervention (3 weeks)

    To assess enjoyment, a modified version of the Physical Activity Enjoyment Scale (PACES) will be used. In this questionnaire, 17 items are scored on a 7-point bipolar scale, with an overall enjoyment score ranging from 17 (not enjoyable) to 68 (neutral) and 119 (enjoyable).

Sponsors and collaborators

Lead sponsor

University of Valencia

Other

Registry information

Official study title

Effects of Reduced-exertion High-intensity Training Versus Short Moderate Intensity Training on Functional Capacity and Physical Activity Enjoyment in Sedentary Young Women A Randomized Trial

Acronym: REHIT

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
May 25, 2023
Registry last updated
May 25, 2023

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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