iPhone app HIITList

Management summary :

Extract sprint intervals from GPS tracks or HealthKit workouts - automatically.
Forget these start-stop-lap buttons.

More details :

You are a sprinter.

Your trainings? Intervals.
High intensity.
12*60 meters - 8*300.
.
Pushing a stopwatch button or waking your phone slows you down, so you dont.

Comes HIITList : just power your watch and HIIT.
When finished, just let HIITList do the analysis.

(Note : from version 2.0 on, you can use your iOs device to record your training.
Continued use of GPS running in the background can dramatically decrease battery life.)

Features :

- Define the intervals you want to track : 60m, 120m, 150m, 300m.
.
Minimum start speed (to avoid flying starts screwing up your sprints), minimum elevation, minimum speed for an interval to be considered etc.
.

- Import tcx/gpx files from iCloud drive, internet or eMail attachments.
HIITlist scans them and detects the intervals.

- Or you can record your trainings using your iOs device.

- View performances by training or by interval.

- Interactive Graphs and maps.

Warnings :

- This version was tested with GPS devices that use one second recording.
Tracks registered using smart recording might produce faulty results.
Support will come in a later release.

- HIITList uses GPS coordinates.
Indoor workouts are NOT supported.

- Currently, HIITList is metric only (athletics tracks are metric, so are Olympic distances.
Not sure if there is demand for miles.
But well add it at users request).

- Speed is expressed in km/hr, not min/km.
(Again, well add if upon user request).

- Youll need a GPS device with a barometric altimeter to differentiate between flat tracks and hills.
Define your intervals with a large enough (+10mr) maximum ascent and descent for devices without barometers.

- GPS devices have an error margin of a few meters.
And one second recording means your start will be missed by up to half a second.
So do not expect spot-on times.
For reference : a 100 meter race electronically timed at 13: 68 was estimated at 13: 76 by HIITList.
A 200 meter race electronically timed at 27: 38 was HIITListed at 26: 83.
All these races were run with a Garmin ForeRunner 610.
You can find some examples on https: //hiitlistapp.wordpress.com/.,

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