next time you feel your child is not plump enough, think again. A recent study
by Reis and others, published in the journal JAMA, has shown that prolonged
obesity (> 20 years) increases the risk of coronary heart disease (CHD) in
to the World Heart Federation, there are 400 million adults who are obese, of
whom 1 billion people are overweight. In the overweight category, 17.6 million
of them are children under the age of 5.
is measured by calculating the ratio of the weight in kilograms to the square
of the height of the individual in meters, also known as body mass index (BMI).
The ideal BMI for good health should be in the range of 21-23 kg/m2
Individuals with BMI ≥ 30 are considered obese. Obesity is a metabolic risk
factor for CHD. Coronary heart disease affects blood vessels supplying the
and others observed 3275 young adults, aged 18-30 years, who did not show any
signs of obesity when the study was initiated in 1985-1986. Overall and
abdominal obesity were measured using BMI and waist circumference as units of
measure. At the end of 25 years, overall obesity was observed in 40.4% and
abdominal obesity in 41% of the study population. Individuals showed a 2-4%
increased risk of CHD for each progressive year of obesity.
arterial calcification (CAC) or calcium deposits in arteries, a risk indicator
of subclinical heart disease, was measured with computed tomography for the
last 10 years of the study. The proportion of individuals, with increased
overall or abdominal obesity and showing CAC, were 25.2% and 27.7%.
Obesity Heart Disease
to the World Health Organization, 17 million deaths (48% of non-communicable
diseases) are attributed to cardiovascular diseases. One of the main risk
factors is physical inactivity, which leads to the physiological change of
obesity in individuals. Each year, 2.8 million people die worldwide due to
obesity. Obesity contributes to 5% of the risk factors for CHD.
Obese Heart Rate
heart rate for normal individuals ranges from 60-100 beats per minute (b-min-1
Research has found the risk of developing obesity is increased when the resting
heart rate crosses 80b-min-1. Another study has shown that the maximal heart
rate of obese individuals can average upto 180 ± 9b-min-1
Obesity as a Risk Factor in
patients, who undergo cardiac surgery, tend to show certain postoperative
complications such as prolonged ventilation, gastrointestinal, and pulmonary
complications. Obesity, however, is not associated with increased mortality in
patients undergoing cardiac surgery.
Obesity in India
in India is increasing at an alarming rate with 30 million Indians being termed
as obese. In India obesity accounts for 1.9% of the estimated risk for
noncommunicable diseases, of which 24% mortality is attributed to
technology has certainly improved our daily existence, it has also created a
sedentary lifestyle for most of us. Obesity is now more common in affluent
countries compared to lower-income nations. The link between obesity and
increased risk of heart disease, in young adults, will take a toll on the
healthcare system of these countries in the near future. Strong government
initiatives to promote a healthy, fitness-based lifestyle, among the younger
generation, will go a long way in improving the economic and social wellbeing
of the global community.
Franckowiak SC, Dobrosielski DA, Reilley SM,
Walston JD, Andersen RE. Maximal heart rate prediction in adults that are overweight or
obese. J Strength Cond Res.