On venous return

Circulation

Circulation, simply put, is the process in which arteries send oxygen rich blood from the heart to the body, veins send deoxygenated blood back to the heart for reoxygenation and the cycle repeats itself.

The blood flowing through you is not exempt from the laws of physics, it abides by the same laws of gravity that you do, the blood flow to your lower limbs requires a large amount effort on the bodies part to return it in adequate amounts to the heart, this effort comes from nerve stimulation of the veins, inducing contraction, and largely, your calves.


On calves

The gastrocnemius, or calf muscle, is the mainstay of external pressure exertion upon the veins, sending blood back up towards the great veins and eventually, the heart.

Should veins depend solely on nerve stimulation for return to the heart, inevitable weakening of the veins and inadequacy of their valves occur, leading to droppage of blood back to the lower limb, resulting in a burning feeling in at certain parts of your lower limb when any effort is performed that only subsides when at rest, and, if left unchecked, will persist through rest and will only be relieved by lifting the paining limb at a vertical angle, allowing gravity to do the job your veins could not, returning blood to the greater veins.


The pudding

During a workout your circulation rate increases to meet the bodies high oxygen demands, eventually you reach a point when you can work no further due to an immense burn and muscle failure, aside from the process of acid seeping into the muscles, which I will explain in later posts, the burn is largely due to deoxygenation and lack of upkeep of blood to the heart.

So, since the neural pathway of venous contraction is beyond our control, why not isolate our calves, work them more than once a week, in order to increase the mechanical pressure on our veins, get the blood to our hearts faster and with less neural effort, and as a result, experience prolonged workouts and prolonged stamina before burning out?

Give it some thought, Veggiesaurs, stairs are your friends, leg day should NEVER be neglected, I will post the workout plan for the week, tailoring it to increasing our peripheral venous return, stay tuned!

Penulis : Dr. McKeemy ~ Sebuah blog yang menyediakan berbagai macam informasi

Artikel On venous return ini dipublish oleh Dr. McKeemy pada hari Saturday, March 17, 2012. Semoga artikel ini dapat bermanfaat.Terimakasih atas kunjungan Anda silahkan tinggalkan komentar.sudah ada 0 komentar: di postingan On venous return
 

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