Name: HIIT Tracker
Rating: 3.4 (217 reviews)
Author: werkkrew

**THIS APP IS UNOFFICIAL AND NOT SUPPORTED BY ORANGE THEORY FITNESS OR ANY OTHER STUDIO**

Donate to the developer: https://paypal.me/werkkrew

This Garmin Connect IQ App provides a display on your Garmin Device which closely matches the display seen on the screens in Orange Theory Fitness studios as well as other HIIT studios such as Fit32, Cyclebar, etc.  It is intended to be used in-studio alongside any of the officially supported heart rate monitors and will not interfere with their operation.  Devices equipped with internal HRM's can use this sensor as well but it is not as accurate as an external sensor.  By default the app will record an activity of type Training but can be changed by the user in the settings menus.  This activity and it's FIT data can be saved and sync'd with Garmin Connect just as any other fitness tracking app does.

How-To

Calculations and Accuracy

The output of this app should very closely match that of the OTF Workout Summary. It may not be exact in all cases and is meant to be as close as possible.

- Max HR is calculated as per Orange Theory's method which is: (230 - Age) for Females and (225 - Age) for Males
- HR Zone Thresholds are: Blue - 61%, Green 71%, Orange 84%, Red 92%
- Calories Burned are calculated using Garmin's algorithms, not OTF's. This is because I do not know how to override that field in the FIT recording file.
- Splat Points are the total time in seconds in the Orange + Red Zones, rounded to the nearest minute.

Heart Rate Stability

During particularly crowded sessions my Vivoactive HR has trouble staying connected to my Scosche Rhythm+.  I believe it is due to interference with so many ANT devices in one room, but this is not something I can solve in my app, as the sensor connectivity is a base feature of the device.  To compensate I have added a "Heart Rate Stabilizier" feature which is on by default but can be disabled.  Essentially this will continue to use the last known heart rate for up to 10 seconds if the sensor disconnects.  Generally speaking when the sensor disconnects it seems to reconnect quite quickly so hopefully this feature will help the app produce more stable results during crowded sessions.

Menu Options and Settings
*The menu can only be accessed while on the splash screen*

- Activity Type - Select the type of activity the workout will be recorded as.  The Activity Sub-Type setting only applies to the "Training" Activity.  The default activity type is "Training".
- Heart Rate Zones - Choose between the official Orange Theory Zone model or your User Profile Defined Models
- Allow Vibration - Enable or Disable Vibration.  Enabling presents cues at start/stop of workout and when falling into the blue zone or going up into the orange/red zone
- HR Stability - Enable or Disable HR Stabilizer, see calculation section for more details

Buttons and Interactions
- On touchscreen devices tapping the screen will toggle the device back light (if equipped).
- Any button other than Back and Enter pressed outside of menus / prompts will toggle the backlight (if equipped).
- Back button on splash screen will exit the app
- Back button when the workout is active will pause the workout
- Back button on review page will exit the app
- Enter / Primary button on splash screen will start the workout
- Enter / Primary button during workout will pause the workout
- Enter / Primary button on review page will exit the app

Prompts

If a Heart Rate is not detected upon starting the workout, user will be confirmed if they want to proceed. App does not function without a heart rate but this assumes the user will attach their heart rate monitor after starting the workout. This prompt will not be displayed on subsequent start/stop actions during a workout session.