Tag: sedentary

Hour’s activity ‘offsets sedentary day’

Hour’s activity ‘offsets sedentary day’

An hour’s “brisk exercise” each day offsets the risks of early death linked to a desk-bound working life, scientists suggest.

The analysis of data from more than a million people is part of a study of physical activity published in the Lancet to coincide with the Olympics.

Watching TV was found to be worse than sitting at a desk, probably because of associated habits like snacking.

Current NHS guidelines recommend 150 minutes of moderate exercise a week.

Being inactive is known to increase the risk of conditions such as heart disease, diabetes and some cancers.

It has been linked to 5.3 million deaths globally a year – compared with 5.1 million linked to smoking.

The Lancet research says the global cost, for healthcare and lost productivity, is estimated at $67.5bn per year.

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Maximum amount of time you can sit before harming your heart

Maximum amount of time you can sit before harming your heart

A new large-scale study has revealed what researchers believe to be the maximum time an individual can sit each day before sedentary time starts to increase the risk of cardiovascular disease, including coronary heart disease, stroke and heart attack.

Although many previous studies have shown that too much sedentary time increases the risk of a variety of diseases, including type 2 diabetes, non-alcoholic fatty liver disease, heart disease, stroke, and high blood pressure, as well as contributing to an increase in waist measurement and an increased mortality risk.

Until now there was no number attached to the amount of time an individual could be sedentary for before it begins to have a negative effect on health.

To look at an association between the number of sedentary hours and the risk of cardiovascular disease, a team of researchers from several institutions throughout the USA analyzed data from the EMBASE and MEDLINE databases.

The data spanned an 11-year period and 720,425 participants in total who together had a mean age of 54.5 years.

Researchers also included lying down in their definition of sedentary time.

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