Physical activity guidelines are too confusing, say researchers

Feb 19, 2009
UK guidelines recommend at least 30 minutes of moderate physical activity per day, five times a week. Credit: University of Bath

Whether you are defined as leading an active or inactive lifestyle can depend on which country you are in and which guideline your GP picks off the shelf, say researchers at the University of Bath.

Whilst many countries have guidelines recommending the minimum amount of physical activity a person should take to stay healthy, much of this advice is conflicting, making it difficult for healthcare professionals to assess whether a person is getting enough exercise.

Scientists at the School for Health at the University of Bath, working with co-investigator Dr Alan Batterham from the University of Teesside, found that around nine out of every ten men they studied could be categorised as active or sedentary, depending on which guidelines were followed.

Dr Dylan Thompson, senior lecturer at Bath, explained: "Recommended levels of physical activity are supposed to give the public and health providers a guideline of the minimum amount of activity needed for good health, but these messages seem to vary a lot.

"For example, in the UK, the recommendation is that adults should do at least 30 minutes of moderate physical activity per day in periods of 10 minutes or more, five times a week.

"In the US, some guidelines recommend an overall volume of activity, recommending an average of 60 minutes of moderate intensity activity per day, but this includes any activity you might do - even if it lasts less than ten minutes.

"So, if you did a couple of two-hour walks at the weekend, and just a little bit of activity during the week, these US guidelines would define you as sufficiently active but according to the UK guidelines from the Department of Health you would be told that you needed to do more.

"Being physically inactive is a major risk factor for heart disease just like high blood pressure and high cholesterol, so it's really important that healthcare professionals are able to identify which people should be getting more physical activity so they can give them appropriate advice and support.

"If you went to the doctor to get your blood pressure or cholesterol checked, you'd expect to get a consistent result each time - we're saying that assessments of physical activity need to be just as stringent."

The researchers, who published their study in the online open access journal PLoS ONE, hope it will lead to a more consistent approach to gauging physical activity.

Dr Alan Batterham, a researcher in the Health and Social Care Institute at Teesside, remarked: "Deciding on whether people are sufficiently active or not depends on where you set the bar. We found that subtle differences in the definition of the minimum amount of physical activity required for health make a big difference to the proportion of people categorised as active or inactive."

Dr Thompson added: "In the long term, we need better evidence about precisely how much physical activity is needed for health, and we need to offer people consistent advice about their physical activity options.

"At the moment, we seem to have a very prescriptive 'one size fits all' approach but the 'size' varies enormously between guidelines. This confusion and inconsistency may be preventing people from taking the message on board that being active can make a huge difference to your health."

Source: University of Bath

Explore further: Is coffee aggravating your hot flashes?

add to favorites email to friend print save as pdf

Related Stories

Magnetic shielding of exomoons: to be or not to be

Sep 06, 2013

A new study on magnetic fields around extrasolar giant planets sheds first light on the magnetic environment of extrasolar moons. The work, authored by René Heller of the Department of Physics and Astronomy ...

SORCE satellite: A Decade in the Sun

Apr 01, 2013

NASA's Solar Radiation and Climate Experiment (SORCE) satellite has been providing data on the sun's irradiance for 10 years. SORCE measures electromagnetic radiation produced by the sun and the power per ...

Recommended for you

Down syndrome teens need support, health assessed

46 minutes ago

Young adults with Down syndrome experience a range of physical and mental health conditions over and above those commonly reported in children with the condition—and these health problems may significantly ...

Time out for exercise

1 hour ago

University of Queensland researcher has found that restructuring our daily routine to include exercise can have unexpected effects on health.

Possible risk of folic acid overexposure

2 hours ago

A new study has shown that synthetic folic acid, the form taken in folic acid supplements we can buy over the counter, is not processed by the body in the same way as natural folates, the form found in green vegetables.

Is coffee aggravating your hot flashes?

5 hours ago

(HealthDay)—Drinking caffeine may worsen the hot flashes and night sweats that affect roughly two-thirds of women as they go through menopause, new survey data suggests.

User comments : 0