Home-based HIT appears to be effective for improving fitness in obese individuals

How much do you exercise? Government guidelines suggest that, in order to stay healthy, adults should perform at least 150 minutes of moderate aerobic activity every week - that's exercise that gets your breathing and heart rate up.

A new study, published in The Journal of Physiology investigated a home-based high-intensity interval training (Home-HIT) program and studied its benefits for clinically obese individuals with an elevated risk of heart disease.

Previous research has demonstrated that under controlled laboratory conditions, you can get the same benefits from three 20-minute exercise sessions, as from the Government-recommended 150 minutes. However, the question is whether data produced in highly controlled laboratory environments can be translated to the real world.

The research team at Liverpool John Moores University were interested in whether Home-HIT is a time-efficient strategy that helps to reduce other common exercise barriers such as difficulty with access to exercise facilities due travel time and cost.

In this study, 32 obese people completed a 12-week program of either: 1) a supervised, lab-based cycling HIT program, 2) the Government-recommended 150 minutes of moderate intensity exercise or 3) a home-based HIT program of simple bodyweight exercises suitable for people with low fitness and low mobility, and performed without equipment. For all of these regimens, the exercise was performed three times per week.

The researchers measured a range of health markers in these participants, including body composition, cardiovascular disease risk, and the ability to regulate glucose. They found that the home-based HIT was as effective as both the Government-recommended 150 minutes and the supervised, lab-based HIT program for improving fitness in obese individuals.

Sam Scott, first author of the study said:

An exercise regimen, such as Home-HIT, that reduces barriers to exercise, such as time, cost, and access, and increases adherence in previously inactive individuals gives people a more attainable exercise goal and thus could help improve the health of countless individuals."

Source:
Journal reference:

Scott, S. et al. (2019) Home-hit improves muscle capillarization and enos/nad(p)hoxidase protein ratio in obese individuals with elevated cardiovascular disease risk. The Journal of Physiology. doi.org/10.14428/ebr.v1i1.8043

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