14 Jun 2007

Proof of life!

Following a suggestion from JoJo, I have purchased a heart rate monitor - I chose not to invest too much cash just in case the exertion causes me to expire way before my allotted time! At least I will know the lung popping heart rate accurately when the ambulance turns up to scoop me up....

Anyway I went for the Oregon HR102 for the princely sum of 18.74 of your finest English pounds. I am ridiculously and quite alarmingly excited about this (I am clearly missing something in my life...) and now regret going for the freebie 'slow boat from china' shipping option!

Here she is folks - gasp if you will!
Just the running shoes to get now and death by tarmac will begin!

8 comments:

Mary Christine said...

Make sure you go to a running shop and get fitted really well. Good shoes make the difference between success and injury!

Jojo said...

Good on ya mate! I LOVE my monitor! I get to change the weight on my, from 180 to 160. Gonna make me work even harder!! Not to worry, your not going to expire on us! Hugs...jojo

Chris H said...

I too am gunna get one of those! Any day now! Already got the shoes.. but I hit the gym , not the tarmac.. that's a risky thing to do with the mad traffic and madder drivers! Hope ya having a neat weekend.

karoline said...

congratulations to all on this journey! you're doing fantastic! keep up the good work!

cheers

k
:)

JN0-303 said...

Your heart, also a muscle, gets a workout during exercise, too, and its job is to get more blood out to the body's hard-working muscles. The heart's blood flow increases by about four or five times from that of its resting state. Your body does this by increasing the rate of your heartbeat and the amount of blood that comes through the heart and goes out to the rest of the body. The rate of blood pumped by the heart (cardiac output) is a product of the rate at which the heart beats (heart rate) and the volume of blood that the heart ejects with each beat (stroke volume).

N10-004 said...

In a resting heart, the cardiac output is about 5 liters a minute (0.07 L x 70 beats/min = 4.9 L/min). As you begin to exercise, sympathetic nerves stimulate the heart to beat with more force and faster; the heart rate can increase about threefold. Also, the sympathetic nerve stimulation to the veins causes them to constrict. This, along with more blood being returned from the working muscles, increases the amount of blood returned to the heart (venous return). The increased venous return helps to increase the stroke volume by about 30 to 40 percent. When the heart is pumping at full force, the cardiac output is about 20-25 liters per minute.

NS0-153 said...

So far, we have talked about getting more blood to working muscle. Your lungs and the rest of your respiratory system need to provide more oxygen for the blood, too. The rate and depth of your breathing will increase because of these events:

* Sympathetic nerves stimulate the respiratory muscles to increase the rate of breathing.
* Metabolic byproducts from muscles (lactic acid, hydrogen ions, carbon dioxide) in the blood stimulate the respiratory centers in the brainstem, which, in turn, further stimulates the respiratory muscles.

NS0-163 said...

Slightly higher blood pressure, caused by the increased force of each heartbeat and by the elevated cardiac output, opens blood flow to more air sacs (alveoli) in the lungs. This increases the ventilation and allows more oxygen to enter the blood.