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| Stroke volume is not about improving your golf score. At least, not directly. :-)
Physiologically, stroke volume is the amount of blood your heart pumps every time it beats. The more blood pumped per heartbeat, the less times your heart has to contract to provide the needed amount of blood.
Our heart's efficiency is directly related to stroke volume. Increased stroke volume means less work for the heart.
As you do more and better aerobic exercise, you are training your heart to be more efficient. Stroke volume increases over time as a result of this exercise, and you notice a number of things. First, it's much easier to walk up hills and other inclines. Stairclimbing requires no extra effort. If you're a swimmer, you can go longer between breaths and you can stay underwater longer.
And, you notice your heart rate goes down. A good resting pulse is 60 beats or less per minute. Most people who aren't exercising have resting heart rates of 70 or greater, even 80 or greater. Less heartbeats per minute means less work for your heart.
Aerobic exercise, done correctly, makes a person much healthier overall, positively impacting many body systems.
I was in a very serious car accident October of 2004. I visited an MD & Neurologist for almost a year and had very little improvement even w/ physical therapy. When Dr. Sorrell opened his practice nearby I stopped in. Within a few weeks I could move my shoulders and neck farther than I had for over a year.I am now back at the gym, swimming. And I don't have a headache every day. I recommend trying chiropractic. It works for me.