The Heart May Be Affected By Spinal Muscular Atrophy: "- Sent using Google Toolbar"
Weak spinal muscles weaken the heart. In this study we're talking about a genetic disease which weakens spinal muscles, but the same may be true for weak and stiff muscles in general. So many people send so much time sitting. This causes a weakening of the neuromusculoskeletal system. They may then try to excercise but their entire frame is out of balance and they end up causing even more damage and pain than before.
The answer is to stay active with some type of excercise. If you are relegated to a desk job at the very least get up for 5 minutes of every hour that you're sitting and move around a bit and stretch. This is also a good time to drink a glass of water to stay hydrated. Your muscle will appreciate it and so will your heart.