High Intensity Interval Training for Sedentary Lifestyle

Age: 18 - 65
Sex: Any
Trial Phase: Academic
Sponsor: California State University, San Marcos

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial explores a new fitness method requiring less time commitment, called reduced exertion high-intensity interval training (REHIT). It involves short, intense bursts of exercise on a stationary bike twice a week, aimed at improving heart and lung fitness in inactive adults. Researchers aim to determine if this quick workout, also known as Low Volume Sprint Interval Training, can effectively boost fitness and health. Healthy individuals with a BMI under 35 and no joint issues might be suitable for this trial. As an unphased trial, it offers a unique opportunity to explore innovative fitness methods with minimal time investment.

Will I have to stop taking my current medications?

The trial requires that participants do not use medications that might change the study results, so you may need to stop taking certain medications.

What prior data suggests that this high intensity interval training is safe for inactive adults?

Research shows that low-volume sprint interval training, such as reduced exertion high-intensity interval training (REHIT), is generally manageable for participants. A study on a similar program found it improved physical fitness without significant side effects. Another study demonstrated that a 40-second REHIT routine using burpees, which requires no equipment, enhanced both physical and mental health without major safety concerns.

In this trial, participants will engage in a minimal amount of REHIT, with only 1 to 2 short sprints per session. This lower intensity and volume may further reduce potential risks. Although safety data from this specific trial is not yet available, existing research suggests this type of training is safe for most people. This trial is in a "Not Applicable" phase, indicating it isn't specifically designed to test safety, but previous studies provide reassurance.12345

Why are researchers excited about this trial?

Researchers are excited about Low Volume Sprint Interval Training because it offers a fresh approach to tackling sedentary lifestyles. Unlike traditional exercise routines, which often require long hours of moderate activity, this method involves short bursts of high-intensity effort, making it more time-efficient and potentially more appealing for those struggling to find time to exercise. This approach could revolutionize fitness by providing significant health benefits with minimal time investment, which is a game-changer for busy individuals looking to improve their health without committing to lengthy workout sessions.

What evidence suggests that this trial's treatments could be effective for improving cardiorespiratory fitness in inactive adults?

Research shows that High Intensity Interval Training (HIIT), including short, intense workouts like Low Volume Sprint Interval Training, greatly improves heart and lung fitness. This type of fitness is important because it helps people exercise more easily and reduces health risks. Studies have found that HIIT can enhance fitness in various groups, such as athletes and people with obesity or diabetes. Recent evidence also suggests that even brief periods of intense exercise, like those in HIIT, can lead to similar improvements. This means that even with a busy schedule, people can gain health benefits from short, intense workouts without needing a lot of time. Participants in this trial will join an intervention group performing long-term REHIT, while a non-exercising control group will not complete REHIT during the trial.13678

Who Is on the Research Team?

TA

Todd A Astorino, Ph.D

Principal Investigator

California State University, San Marcos

Are You a Good Fit for This Trial?

This trial is for healthy adults under 65 with a BMI less than 35, who lead sedentary lifestyles. It's not suitable for those with joint issues or other health conditions that might interfere with high-intensity exercise.

Inclusion Criteria

I am under 65 years old.
My BMI is under 35.
I am generally healthy.
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Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

1-2 weeks

Baseline Assessment

Baseline assessments including VO2max testing and substrate metabolism measurements

1 week
1 visit (in-person)

Treatment

Participants undergo 24 sessions of REHIT over a 12-week period

12 weeks
2 visits per week (in-person)

Follow-up

Participants are monitored for changes in cardiorespiratory fitness and other health metrics

4 weeks
1 visit (in-person)

What Are the Treatments Tested in This Trial?

Interventions

  • Low Volume Sprint Interval Training

Trial Overview

The study tests the effects of reduced exertion high intensity interval training (REHIT) on cardiorespiratory fitness in inactive adults. Participants will do short sprints on a stationary bike twice weekly over nine weeks and be compared to a non-exercising group.

How Is the Trial Designed?

2

Treatment groups

Experimental Treatment

Placebo Group

Group I: Intervention groupExperimental Treatment1 Intervention
Group II: Non exercising control groupPlacebo Group1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

California State University, San Marcos

Lead Sponsor

Trials
11
Recruited
2,200+

Citations

Effect of Low Volume Sprint Interval Training on ...

Hundreds of studies report an increase in CRF in response to HIIT in various groups of adults ranging from athletes and those with obesity, ...

Effect of self-paced sprint interval training and low-volume HIIT ...

A recent meta-analysis reported similar improvements in cardiorespiratory fitness (CRF) following lab-based SIT and HIIT (de Oliveira-Nunes et ...

Real-world efficacy of equipment-free reduced-exertion ...

This study demonstrates that a 40-s equipment-free REHIT protocol utilizing burpees improves both physical and mental health outcomes, even when implemented in ...

Effect of Low Volume Sprint Interval Training on ...

One primary benefit of HIIT is a sizable increase in cardiorespiratory fitness (CRF), which enables adults to exercise better and reduce health ...

Six Weeks of Low‐Volume Sprint Interval Training Improves ...

Concomitant with improved VO2peak, the LVSIT group experienced a ~62% increase in our secondary outcome, TTE. Notably, all individuals in the ...

A study on the effects of modified sprint interval trainingon ...

This study primarily investigates the impact of a 6-week Sprint Interval Training (SIT) intervention on the physical fitness test results of male university ...

Effects of run sprint interval training on healthy, inactive ...

VO2peak improved 20.7% in the SIT group (n = 5) and 24.4% in the MICT group (n = 7). Body fat percentage reduced by 1.7% in the SIT group and ...

The effect of sprint interval training on key cardiometabolic ...

Significant improvements in body composition were also observed, including a large reduction in the body fat percentage (k = 7; SMD = −0.83, p = ...