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REHIT Versus SMIT in Sedentary Young Women

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

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05875051
Acronym
REHIT
Enrollment
30
Registered
2023-05-25
Start date
2021-12-01
Completion date
2022-04-30
Last updated
2023-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sedentary Behavior

Keywords

High-intensity training, Moderate intensity training, Sedentary young women

Brief summary

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.

Detailed description

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.

Interventions

OTHERReduced-exertion high intensity training

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.

OTHERShort moderate intensity training

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.

Sponsors

University of Valencia
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

The outcomes assessor will be blinded to treatment group allocation. The blinded assessor will collect all baseline and post-intervention measures and enter data.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 25 Years
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
Functional capacityBaselineIt 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

MeasureTime frameDescription
Resting heart rateBaselineIt will be measured with a patient monitor (ProAct PC-3000 Patient Monitor, Medisave, UK).
Physical activity enjoymentBaselineTo 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).

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026