Intervals.icu interval detection and training tool

[davidtinker]

David, chapeau sir!! you have done a mighty fine job. ...

edit- what'd be nice is to see heart rate min/max for intervals. not sure why, it'd be interesting to me. not sure of benefit though

 

Tx. You can see min and max HR for intervals. Click the "Fields" drop down under the ride timeline chart (main activity view) and select "Min HR" and "Max HR". Same thing works on the "Interval Data" page. The pages will remember your settings.

[davidtinker]

Strava have changed the way auth for apps is handled. Supposedly all existing intervals.icu users should be ok but if anyone runs into problems (e.g. 404 errors loading new activities or syncing existing ones) please let me know asap on david.tinker@gmail.com.

 

Also try logging out (from https://intervals.icu/settings) and logging in again. Its very quick if you are already logged in to Strava.

Edited October 22, 2018 by davidtinker

[rudi-h]

Tx. Could you please mail me (david.tinker@gmail.com) a link to that activity in intervals.icu so I can have a look?

 

The algorithm does try to join work intervals separated by "short" recovery intervals but I need to do some more work in that area. Generally intervals that are varied are a challenge vs square ones. 

 

I probably need to add a combine option as you suggest. I can track how often it gets used to judge the success or otherwise of the algorithm.

 

Here's an example.  This was last night, I did ERG mode intervals on my kickr.  Only issue is that every now and then the kickr loses connection to my garmin, causing a temporary dip.  Look at interval #4.  It's a 8 minute interval @ 290W, but it only picked up the last 6min50 because there was a short dip after the first 1min10s.

 

 

PS this is not intended as criticism, I like the "product".  Just posting some data if you'd want to evolve your algorithms.

Edited October 23, 2018 by rudi-h

[davidtinker]

Here's an example.  This was last night, I did ERG mode intervals on my kickr.  Only issue is that every now and then the kickr loses connection to my garmin, causing a temporary dip.  Look at interval #4.  It's a 8 minute interval @ 290W, but it only picked up the last 6min50 because there was a short dip after the first 1min10s.

 

intervals.JPG

 

PS this is not intended as criticism, I like the "product".  Just posting some data if you'd want to evolve your algorithms.

 

Tx a stack for this. I am definitely looking for feedback! I had a look at that one and the power dropouts are zeros whereas other power files I have looked at have "nulls" instead of zero. Nulls are easy to compensate for. I need to figure out how to handle the zeros. The absolute sudden drops from 280 to zero is probably something I can work with.

 

I am going to be doing some more work on intervals.icu wed evening.

[davidtinker]

I had to log everyone out to fix a problem with how Strava migrates people to the new auth permissions (grrr). Next time you go to intervals.icu you will need to click connect with Stava and approve the new permissions.

 

[davidtinker]

Intervals.icu now downloads activity data from Strava in the background using "spare" rate limit. So activities listed as "queued" on the activity calendar are likely to have been analysed by the next time you visit. This is great for the fitness chart which requires a lot of data.

Edited October 27, 2018 by davidtinker

[davidtinker]

Intervals.icu/ now has better handling for power files with zero watt drop outs (instead of nulls) so these will be less likely to break up intervals. Interval detection for very square intervals has also been improved.

[davidtinker]

Intervals.icu now supports displaying average, max and min speed for each interval on the ride timeline chart and the interval data table. Just click "Fields" and add what you would like to see.

 

A new interval search feature will be landing soon to make it easier to compare interval sessions.

[obree]

Thanx David

[davidtinker]

Intervals.icu now has an interval search feature. You can search for intervals based on any mix of time, power, cadence and reps or just click the interval's shown with each activity. I still need to do some work on this chart to show torque and fitness and fatigue.

 

[RossW]

Stunning work! Thanks for scratching that itch!

[davidtinker]

Tx. The interval search chart now supports displaying crank torque on the y-axis instead of power.

Edited November 6, 2018 by davidtinker

[davidtinker]

Intervals.icu now supports searching for intervals based on intensity i.e. the average power for the interval as a percentage of your FTP at that time. So you can enter 100% in the power field and find all your threshold intervals.

 

[davidtinker]

It turns out that you can use Intervals.icu without having to pay for Strava. I assumed that Strava would prevent download of power data from their API for free tier users but it seems that they do not. So you can use Intervals.icu to analyse you rides for free.

[avatar]

is the form/fit/fatigue graph page working currently, mine doesnt display any data

 

 

Edited November 9, 2018 by avatar

[davidtinker]

is the form/fit/fatigue graph page working currently, mine doesnt display any data

 

Yes it is working. You probably don't have an FTP set. I need to add a check for that for new users before analysing all their rides. If you go to intervals.icu/settings and capture your FTP I will trigger a re-analysis of your rides tonight.

 

Not having FTP set will also make a mess of the interval detection. I had better get on the "new user" feature.