Solved

Portable Vo2Max and BMI meter

Posted on 2011-09-16
10
234 Views
Last Modified: 2012-05-12
Hi there,

I am looking for the following meters at an affordable price:
-Vo2Max
-Resting BMI
-Glucide vs protain burning rate during exercise

Thanks for your advise,
Rene

0
Comment
Question by:ReneGe
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 5
10 Comments
 
LVL 5

Expert Comment

by:vop
ID: 36557144
VO2 Max - there is no simple device which a person can connect up to and estimate VO2 Max. The only proper way to measure VO2 Max is to use graded exercies using a treadmill or cycle ergometer to progressively increase exercise intensity whilst measuring ventilation and oxygen and CO2 concentrations in inhaled air. There is a simpler method based on measuring maximum and resting heart rates, but this is not nearly as accurate as the ergometer method.

As far as I'm aware, there is no such thing as resting BMI. BMI is a measure of weight to body area and is obtained by caclulation based on height and weight. It remains the same, whether one is resting or exercising, although it will tend to fall during a long endurance event. A number of products are on the marked, often incorporated into body weight measuring scales, which provide a numerical display of what is claimed to be BMI, based on electrical skin conductivity between sets of electrodes, but this is not as accurate as the height-weight-based calculation.

I can't help on glucide vs protain burning rate. Did you mean carbohydrate vs protein?


0
 
LVL 10

Author Comment

by:ReneGe
ID: 36557164
Thanks vop!

-Since I already have a treadmill, would you by any chance, know about an affordable VO2 MAX testing device/kit?
-You are right, I did mean "carbohydrate vs protein"

Cheers,
Rene
0
 
LVL 5

Expert Comment

by:vop
ID: 36557459
Fitness gyms tend to use the maximum and resting heart rates method to estimate VO2 Max as part of periodic assessment of a gym user's fitness parameters. The test takes 15-20 mins to conduct and involves several episodes of exercise with rest in between. Depending on the calculation method adopted, the treadmill may need to be set to a fixed known slope. The treadmill speed will need to be increased stepwise. Some method of measuring heart rate during exercise is necessary, and the person's weight may need to be known in order to calculate the work done.

Take a look at:  http://en.wikipedia.org/wiki/VO2_max

As far as carbohydrate vs protein burn rates during exercise are concerned, under "ordinary" exercise conditions, the primary source of energy will be carbohydrate, the majority of which will come from glycogen stores mainly in liver and muscle. Protein catabolism will only tend to become significant in extremes, e.g. in starved individuals, or after some time into prolonged intense exercise without additional food intake. The person concerned will know when their glycogen stores are getting low because they will experience what is known as "the wall" or "the knock" - symptoms will include feeling weak, disturbances of vision (things will look bright and light/dark contrast will be reduced), aches and pains, and a sense of humour failure! Under normal circumstances, calculating carbohydrate burn rate will be sufficient. Protein catabolism alone will not provide sufficient energy to sustain any significant exercise rate. Fat reserves will also be drawn upon, once significant glycogen depletion has occurred. If a person has exercised, but doesn't eat sufficient calories to replace those used during exercise plus those needed to maintain basal metabolism, then the glycogen stores will be refilled, and basal metabolism maintained by mobilising fat.



0
Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

 
LVL 10

Author Comment

by:ReneGe
ID: 36557846
Thanks vop for all this information. In "SEE ALSO" -> "Anaerobic exercise", I found this: http://en.wikipedia.org/wiki/File:Exercise_zones.png

Does this mean that if while exercising, I maintain a heart beat in the Weight Control level, I will be in the best exercising conditions to burn fat?

Thanks for all your help,
Rene
0
 
LVL 5

Accepted Solution

by:
vop earned 500 total points
ID: 36559368
Burning fat isn't as simple as maintaining heart rate within a particular band. Food intake is an important part of the equation. The basis behind this equation is very simple, however, and there's no escaping it. If the calories absorbed from food are less than the calories consumed by basal metabolism plus exercise, weight loss will follow and this will be predomonantly from fat. The most difficult part is maintaining the discipline necessary to limit the number of calories eaten, especially since doing more exercise will naturally increase feelings of hunger.  Modern food technology has been very successful at making us eat more and the modern work environment for a large proportion of people is relatively sedentary, which tends to encourage fat deposition. There is quite a bit of misleading information, out there, particularly behind advertising claims for special diets and nutritional supplements. Rather like oxygen-free copper and the Hi-Fi industry. One thing to try is to allow feelings of hunger to persist for a while and then only to eat moderate amounts of food.

Take a look at e.g:

http://www.bodybuildingology.com/fat-metabolism.shtml

http://arno.unimaas.nl/show.cgi?fid=2782

0
 
LVL 10

Author Comment

by:ReneGe
ID: 36559913
May I then conclude by saying that the best ways to lose those love handles are:
-Eat healthy in a balanced way (I use FitDay software to balance my diet [http://www.fitday.com])
-Eat less calories then you burn
-Do daily low intensity (25% of Vo2MAX) cardio exercise for half an hour
-Exercise your muscles every 2 days, just ennuf so they start to heart a bit, so your fat burning furnace can burn more fat, with the same efforts (resting or during 25% of Vo2MAX exercise)

How does that sound? Am I forgetting something?

Thanks and cheers,
Rene
0
 
LVL 5

Expert Comment

by:vop
ID: 36560401
Sounds absolutely spot on :-)

One thing to be wary of when measuring body mass during any weight reduction program is that body weight can easily vary by +/- 1kg or more due to normal variations in homeostasis. It's the underlying more gradual changes that matter. If weight is not reducing, a correction factor could be applied, either to the output of the FitDay software, or to the way the calories burned are calculated.

Good luck.

0
 
LVL 10

Author Comment

by:ReneGe
ID: 36560492
Thanks a million vop.

I have one more question. In my weight reduction strategy, considering that for the moment, I do not have the target of augmenting my cardio vascular endurance, would it be of any use for me to bring my cardio to higher Vo2Max %, to aerobic, anaerobic or even max efforts?

Cheers,
Rene
0
 
LVL 5

Expert Comment

by:vop
ID: 36561104
If exercise effort is increased towards VO2 Max, fat burn will contribute less and less to energy production, although overall the fat burn rate will almost certainly increase. From a weight loss point of view, going closer to VO2 Max will have some effect, though this will need to be balanced against general fitness at the time. The great thing about exercise is it gives a real feel good buzz, down to endorphin release, I guess. If the exercise regime doesn't feel good, its best to rack it back a little. In any case, general fitness levels will rise so a given level of effort will seem easier.



0
 
LVL 10

Author Comment

by:ReneGe
ID: 36561185
Nice...

Thank you so mutch for all your help.

I learned a lot here.

Friendly cheers,
Rene
0

Featured Post

Enroll in June's Course of the Month

June's Course of the Month is now available! Every 10 seconds, a consumer gets hit with ransomware. Refresh your knowledge of ransomware best practices by enrolling in this month's complimentary course for Premium Members, Team Accounts, and Qualified Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I've been asked to discuss some of the UX activities that I'm using with my team. Here I will share some details about how we approach UX projects.
Digital marketing agencies have encountered both the opportunities and difficulties that emerge from working with a wide-ranging organizations.
Notifications on Experts Exchange help you keep track of your activity and updates in one place. Watch this video to learn how to use them on the site to quickly access the content that matters to you.
Where to go on the main page to find the job listings. How to apply to a job that you are interested in from the list that is featured on our Careers page.

728 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question