How long before this is rolled out to your hospital stroke department? I'm betting 20 years. You wouldn't want to do this dangerous monitoring on your own. Wow, an exercise protocol!
http://www.alphagalileo.org/ViewItem.aspx?ItemId=167323&CultureCode=en
A novel activity tracker has been developed that uses heart rate data
to personalise the amount of exercise needed to reduce the risk of
death from cardiovascular disease. The science behind the tracker is
presented for the first time today at ESC Congress 2016.1
“The health benefits of regular exercise are well established, but
individuals do not know how much they need to prevent cardiovascular
disease and premature death,” said lead author Dr Javaid Nauman, a
researcher in the Cardiac Exercise Research Group (CERG), Norwegian
University of Science and Technology in Trondheim, Norway.
ESC guidelines recommend adults do 150 minutes of moderate or 75
minutes of vigorous exercise weekly, or a combination of intensities to
achieve the same energy expenditure.2 But each year lack of exercise
contributes to more than five million deaths globally and over €80
billion in healthcare spend across Europe.
“People may be insufficiently active because they do not have
personalised, meaningful information about how much physical activity
they require, and at what intensity,” said Dr Nauman.
Heart rate is the single-most accurate reflection of the body’s
response to activity. The current study describes the science behind
Personal Activity Intelligence (PAI), the first activity tracking score
that uses heart rate to help people achieve optimal health.
PAI translates heart rate data from any physical activity (i.e.
walking, swimming, dancing, cycling) and personal information (age,
gender, resting and maximum heart rate) into one simple score. “The goal
is to keep your PAI score above 100 over a seven-day rolling window to
protect yourself from premature death related to heart disease,” said Dr
Nauman.
To develop PAI, the researchers used data on 4637 individuals from
the HUNT Fitness Study. An algorithm was derived based on questions
relating to frequency, duration and intensity of exercise where relative
intensities of low, medium and high corresponded to 44%, 73% and 83% of
heart rate reserve.
The algorithm was validated in 39 298 healthy Norwegian men and women
from the Hunt Study.3 Participants were divided into four groups
according to their PAI score (0, 1–50, 51–99, >100). A score of 0 was
considered inactive and used as the reference group for comparison.
After a median follow-up of 28.7 years, there were 10 062 deaths,
including 3867 deaths from cardiovascular disease (CVD).
Men and women with a PAI level >100 had 17% and 23% reduced risk
of CVD mortality compared to the inactive group, respectively, after
adjustment for multiple confounders. The corresponding risk reduction
for all-cause mortality was 13% and 17% for men and women, respectively.
PAI level >100 was associated with similar reductions in all-cause
and CVD mortality regardless of age and risk factors such as smoking,
hypertension, overweight or obesity.
The reductions in risk of all-cause and CVD mortality compared to the
inactive group were dose dependent by PAI score (1–50, 51–99, >100),
with those achieving the recommended level of >100 PAI having the
highest reductions in risk.
Dr Nauman said: “PAI is for everyone, young and old, fit and unfit,
and it’s an easy-to-understand number. Regardless of the physical
activity, every time you raise your heart rate, you contribute to your
PAI score, which can be calculated with the PAI app.4 The more elevated
your heart rate is during exercise, the more quickly you accumulate PAI
points, but you can also work out at lower intensities for longer
durations to earn PAI. Our research shows that keeping your PAI score at
100 or above could prevent premature death.”
Full bibliographic information1Dr
Javaid Nauman will present the abstract “Personal activity index (PAI)
for promotion of physical activity and prevention of CVD” during:
• The press conference “The cardiovascular risks of modern life” on 27 August at 12:30 to 13:30
•
The session “Improved risk prediction and subsequent action” on 29
August at 15:35 to 16:25 in the Moderated poster station – Poster Area
22016
European Guidelines on cardiovascular disease prevention in clinical
practice. Eur Heart J. 2016;37:2315–2381. doi:10.1093/eurheartj/ehw106
3The
Hunt Study is one of the largest health surveys ever performed, where
more than 60 000 individuals aged 20 to 90 have been followed over
several decades.
4For more information, visit
https://cergntnu.wordpress.com/2016/01/10/pai-personal-activity-intelligence-introduced-to-the-world/#more-7379
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