http://www.angirx.com/blog/heart-disease-walks/
heart disease walks
My heart skips a beat sometimes, when I run, if it is only a disease?
First, warming walk on the treadmill during my training, when I start running, or until I feel my strength to jump start my heart beats a little or what it feels like the days run together. Should I be worried about this or is only a consequence of being out of shape?
You still should ask your doctor. There is also a formula you can use to find out the maximum pulse rate which must take exercise. It tells you what is a safe level of working within (the factors that age in the formula).