Garry Seto's dashboard

Hi Randy,

Please contact me via email and we can discuss this offline. My email address is garry [at] endloop [dot] ca.

Thanks!

Thanks for the great review! Glad you are having fun with PhotoCaps!

Hi Game Geek!

We will contact you personally regarding this question. Thanks for your interest!

Hi Stacy,

Great suggestion and this is something we would definitely consider including in a future update. One feature in queue is, in fact, a workout history/log that would keep track of your past workouts and sessions. We could include a calorie calculator based on Avg. HR over time into this feature when we develop it. Unfortunately, I can't say when to expect this feature as of yet, but we're definitely considering it.

However, you may find an existing feature quite useful in this respect as well. In the latest version of iHeartRate, we've included a way for users to manually enter in their HR during their workout. This was included specifically for users, like you, who have their own HR monitors but simply wanted to use iHeartRate for the more personalized calorie burn calculation.

To do this, simply:

1) In the iHeartRate app, click on the Settings button along the bottom
2) Enable Manual HR by clicking ON
3) Click on the iHeartRate button along the bottom to return to the heart rate monitor screen
4) Press and hold down the heart button in the middle of the screen for 3 seconds.
5) A number pad will appear, allowing you to manually enter your HR from your own HR monitor
6) Repeat #4 and #5 every time your HR changes significantly

You can do this throughout your workout as your HR changes. If you do this for changes of 10-15 beats per minute, then you should have a much more accurate calculation than simply taking the average HR for the entire session.

I hope this helps and, once again, thanks for your excellent feedback and I hope that you continue to use and enjoy iHeartRate!

Hi Jillian,

Thanks for your response and thanks for using iHeartRate and caring enough about it to let us know of this issue.

In fact, while it may seem counter-intuitive, an INCREASE in neck size actually indicates a DECREASE in body fat percentage. Why is this?

Well, I don't quite know, to tell you the truth, but our formula is based on the US Navy's body fat percentage method. This method is meant to be an approximation accurate to within 2-3%.

Here are the exact formulas we use:

The formula for men (measurements in cm):

%Fat = 495/(1.0324-.19077(log(ABDOMEN-NECK))+.15456(log(HEIGHT)))-450

The formula for women (measurements in cm):

%Fat=495/(1.29579-.35004(log(ABDOMEN+HIP-NECK))+.22100(log(HEIGHT)))-450

As you can see from the formula, NECK size is subtracted from ABDOMEN and HIP size, which indicates it has an inverse affect on your body fat %.

The logic behind this is that the formula attempts to compensate for muscle growth which should, in fact, increase the size of your neck. We understand that this is not going to be an exact measurement (you will need other devices to determine that), but this formula as been proven to be an excellent approximation.

Here are some various links to external sources relating to this formula:

Body Fat % Calculators (Navy Method):

http://www.bblex.de/en/calc/navy.php
http://fitness.bizcalcs.com/Calculato...
http://lowcarbdiets.about.com/library...
http://www.healthstatus.com/calculate...

I hope this clears up any confusion and I hope that you continue to use and enjoy iHeartRate and if you have any further concerns and questions, we'd love to continue to hear your feedback.

Thanks,
Garry Seto
Co-Founder, Endloop Systems Inc.