This has been covered before: Reverse the harm of sitting: 5 min walk
Medical researchers have been steadily building evidence that prolonged sitting is awful for your health. And that’s before getting to Deep Vein Thrombosis (DVT) and/or Pulmonary Embolism (PE) sufferers.
Sitting for long periods of time, like many people do daily at their jobs, is associated with risk factors such as higher cholesterol levels and greater waist circumference that can lead to cardiovascular and metabolic disease. When people sit, slack muscles do not contract to effectively pump blood to the heart. Blood can pool in the legs and affect the endothelial function of arteries, or the ability of blood vessels to expand from increased blood flow.
…The researchers were able to demonstrate that during a three-hour period, the flow-mediated dilation, or the expansion of the arteries as a result of increased blood flow, of the main artery in the legs was impaired by as much as 50 percent after just one hour. The study participants who walked for five minutes for each hour of sitting saw their arterial function stay the same — it did not drop throughout the three-hour period. Thosar says it is likely that the increase in muscle activity and blood flow accounts for this.
It’s so crazy, it might just work…
This also lends credence to why DVTs happen on long distance travel, discounting what I never believed: the air mixture in planes was responsible. Since my original diagnosis, I’ve been told to take breaks and walk when driving or flying long distances (basically over an hour) to prevent future problems…