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Admin Reporter- Pooja

Sep 12 2018


Genes determine how heart rate responds to exercise

When people exercise, their heart rate and blood pressure increase. However, the magnitude of this is different for different people.
Genes can determine how the heart rate and blood pressure respond to exercise and may act as an early warning of future problems for the heart or blood vessels, according to new research.
Previous research has shown that abnormally large increases in blood pressure during exercise makes it more likely that people will suffer from future high blood pressure. Therefore understanding why people react differently to exercise is important as this can help to identify risk factors and enable early monitoring or treatment of individuals at risk.


Until now it has not been known why the response to exercise varies between different people. This new research has found that genetic differences in receptors found in skeletal muscles can contribute to this different response.


Receptors are groups of specialised cells that detect changes in the environment and cause some kind of response. The scientists identified that the presence of two common genetic mutations in receptors found in skeletal muscle led to higher blood pressure during exercise compared to people who did not have them, particularly in men.


The research conducted by the University of Guelph (Canada), involved measuring heart rate and blood pressure of 200 healthy young men and women before and during a handgrip exercise, plus analysing their DNA for genetic risk factors.

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