Recommending Physical Activity as PreventionPublished: 2009-12-03 10:51:57Author: Will Evans | ChiroACCESS | December 1, 2009Although a link between
chronic disease and lack of PA is well established, many are unaware
that chronic spine problems and obesity/sedentary lifestyles are highly
co-morbid as well.3,4 Unfortunately, both back problems and physical inactivity are also becoming more and more prevalent in adolescents.5,6 According to one study, PA levels begin to drop sharply in adolescence.6 These declines typically begin in the 7thgrade and progress from there. Even though they may hold the greatest
benefits from PA, vigorous levels of exercise decline at a sharper rate
than moderate levels in both girls and boys.
A recent study on cardio respiratory fitness (CRF) looked at over 3,400 women and 16,800 men.7
This study found PA levels necessary to sustain healthy CRF levels
started to decline at an accelerated rate after 45 years of age. Being
physically active, not smoking and maintaining a low body mass index
were all associated with higher CRF scores across the adult lifespan.
According to a study of US women reported on in 2008, 47-62% of
premature deaths in America can be attributed to a combination of
smoking, being overweight, lack of PA, and low diet quality.8 Additionally, it is estimated that between 164,000-222,000 deaths can be attributed directly to physical inactivity.9
In a 25 year prospective study of over 2,000 men (mean age 72) regular
exercise was associated with a 30% lower risk of mortality.10
Authors concluded that enhanced lifespan with good health and
functioning during older age (after age 90) was specifically associated
with not smoking, blood pressure control, weight management, and
regular vigorous exercise. The results indicated benefits of vigorous
exercise in those >75 years after controlling for better general
health at baseline. It is clear that PA levels must become a routine
part of preventive medicine for all health care providers.
A
recent study of graduating interns found that most (>85%) said they
planned to promote health as part of their routine chiropractic
practice.11 When asked if they planned on counseling “all
patients” on healthy exercise levels, 93% of females and 95% of male
interns said they planned to do this. However, a study of patients who
had seen medical doctors (MDs), chiropractors (DCs), and physical
therapists (PTs) for chronic back or neck pain found that only 48% were
prescribed PA. Of those, 29% of patients who saw MDs, 21% of those
seeing DCs, and 46% of those seeing PTs said they were provided
prescriptions for exercise.12 In an analysis of the
National Health Interview Survey (NHIS) looking at a 2005 adult sample
and those reporting various health promotion advice as being received
from their health care provider, those seeing a DC only within the
previous 12 months were more likely to report being physical active
than those only seeing an MD.13 They were also less likely
to be obese when having only seen a DC. This is in line with a study
by Jamison on what DCs seem to be comfortable with concerning health
promotion advice where 91% were prepared to offer advice on exercise
compared to 35% prepared to offer advice on smoking cessation for
example.14
PA levels need to be maintained across
the lifespan. All health care providers should do what they can to
promote increases in PA for their patients and those patients’
families. The US Department of Health and Human Services’ 2008
guidelines on PA state that there is a direct linear relationship
between increasing levels of PA and longevity.15 Most
benefits for adults come within 150 minutes of combined PA per week.
This can be accomplished with a brisk walk several days a week or with
more sustained aerobic activity when indicated. Both PA levels that
will challenge muscular fitness and aerobic levels of fitness should be
included as well as exercises that strengthen bone health. According
to the 2008 Physical Activity Guidelines for Americans (www.health.gov/paguidelines)
regular PA can significantly reduce; cardio-vascular disease, stroke,
hypertension, diabetes risks, abnormal blood lipids, metabolic
syndrome, obesity, musculoskeletal health conditions, and risks of
falls in older adults to name a few.
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