Metabolic Equivalents

[Doppler]

Could the diving doc or any other member here explain for me how one can evaluate the 'MET Value" of CV exercise... if walking briskly is 4 MET what would indicate 10 or 13 and so on.

Thanks

DD

 

[DocVikingo]

Is this what you had in mind?-->

http://www.fpnotebook.com/SPO34.htm

Best regards.

DocVikingo

 

[Doppler]

DocVikingo once bubbled...
Is this what you had in mind?-->

http://www.fpnotebook.com/SPO34.htm

Best regards.

DocVikingo

That's EXACTLY what I wanted to know... thank you!

DD=-)

 

[The Iceni]

I never ceased to be amazed at speed with which DocVikingo (and others) acesses these references. IT is genuinely impressive.

I post this as I have often wondered how much exercise one undertakes on a dive, since a diver is weightless but has to swim against water resistance. I have always thought scuba was a good form of exercise, if only because of the effort involved in humping heavy kit around, but what about the diving itself?

Oxygen consumption is the most accurate measure of work and I have fond memories of undertaking experiments with bicycle ergometers and Douglas bags. (How times have changed!). Clearly it is not possible to take spirometers, douglas bags or oxygen meters on an open-circuit dive, in order to measure oxygen consumption, but with the advent of rebreathers the oxygen consumed can be measured (venting losses accepted);-

I understand an average British rebreather diver is expected to use about 1,500 mls O2 per min. How does this compare with known aerobic exercise?

From Family Practice Notebook referenced by Doc Vikingo;-

Moderate Activity

A. Rowing a boat at 2.5 mph: 300 kcals/hour or 4 METS
B. Ten-pin bowling (270 kcals/hour or 4 METS)
C. Golf - walking: 300 kcalks/hour (4 METS)
D. Swimming at 0.25 mph (300 kcals/hour or 4 METS)
E. Walking at 4 mph (330 kcals/hour or 4 METS)

Strenuous Activity

A. Cycling at 11 mph :440 kcals/hour or 6 METS
B. Dance
1. Slow Step: 300 kcals/hour or 4 METS
2. Square Dancing: 350 kcals/hour or 5 METS
3. Fast Step (Aerobic): 490 kcals/hour or 6 METS
C. Racquet Sports
1. Badminton (350 kcals/hour or 5 METS)
2. Tennis Singles (420 kcals/hour or 5 METS)
D. Shovelling (400 kcals/hour or 5 METS)
E. Skating at 10 MPH (400 kcals/hour or 5 METS)
F. Water-skiing (460 kcals/hour or 6 METS)

Definition

One MET: Resting metabolic rate at 3.5 ml O2/kg/min

For the average 80 Kg male diver, resting oxygen consumption is 80 x 3.5 mls per min = 280 mls per min.

The rebreather's metabolic rate is approximately 1,500/280 = 5.35 METS.

Seems like a pretty good workout to me!

 

[pufferfish]

Sexual intercourse with a longstanding partner is usually equivalent to 2-3 METS up to 5-6 METS in more vigorous cases

 

[Doppler]

pufferfish once bubbled...
Sexual intercourse with a longstanding partner is usually equivalent to 2-3 METS up to 5-6 METS in more vigorous cases

Thanks for that Pufferfish... <Data now filed in Trivia drawer>

DD =-)

 

[The Iceni]

pufferfish once bubbled...
Sexual intercourse with a longstanding partner is usually equivalent to 2-3 METS up to 5-6 METS in more vigorous cases

Not much use for your fitness training then, Pufferfish. You need to maintain that level of work for more than your standard three minutes!!! .

I think 20 mins continuous exercise, three times weekly is the usual recommendation. (Chance would be a fine thing!)

 

[pufferfish]

Ha, ha
My 'exercise' regimen includes an aerobic 17 minute, 3 met interval followed by a 3 minute, 6 met anerobic sprint which I then repeat twice for a full hour of fun. Yes three times a week is needed for fitness training :mean:

If you look at the latest Durex global survey you will see that the French exercise the most per week and Canadians were fourth. I don't think the British were even in the top ten

 

[divemistress]

Dr Paul Thomas once bubbled...
For the average 80 Kg male diver, resting oxygen consumption is 80 x 3.5 mls per min = 280 mls per min.

Doc, what's a female diver's resting oxygen consumption?

 

[Doppler]

divemistress once bubbled...

Dr Paul Thomas once bubbled...
For the average 80 Kg male diver, resting oxygen consumption is 80 x 3.5 mls per min = 280 mls per min.

Doc, what's a female diver's resting oxygen consumption?

I think you've caught him there!!!


DD