You can now download all activities in CSV format from the activity calendar. The CSV includes most things including training load, fitness, efficiency etc… So you can calculate your own things, figure out interesting plots and so on.
All fields starting with icu_ are calculated by Intervals.icu. Others may be calculated by Intervals.icu or come from Strava, indicated on each field.
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id
Strava activity ID -
start_date_local
Date in local timezone in ISO-8601 format e.g. 2020-04-04T08:30:34 -
name
Name or title -
type
Strava type: Ride, Run etc. -
moving_time
Strava moving time in seconds -
distance
Strava distance in meters -
elapsed_time
Strava elapsed time in seconds -
total_elevation_gain
Strava total climbing in meters -
max_speed
Strava max speed in meters/second -
average_speed
Strava average speed in meters/second -
has_heartrate
Does the activity have HR data (true/false) -
max_heartrate
Max HR calculated by Intervals.icu -
average_heartrate
Average HR calculated by Intervals.icu -
calories
Strava colories (Strava gets it from whatever created the actvity) -
device_watts
Does the activity have real (i.e. not virtual) power data (true/false)? -
icu_average_watts
Average power (icu_joules / icu_recording_time) -
icu_normalized_watts
Normalized watts (NP) -
icu_joules
Total energy expended -
icu_intensity
icu_normalized_watts * 100 / icu_ftp -
icu_training_load
Actual TSS or estimated from HR if no power is available -
icu_training_load_edited
Has icu_training_load been manually edited? -
icu_fatigue
ATL -
icu_fitness
CTL -
icu_eftp
Estimated FTP -
icu_variability
Variability index (icu_normalized_watts / icu_average_watts) -
icu_efficiency
Efficiency factor (icu_normalized_watts / average_heartrate) -
trainer
Flagged as trainer in Strava -
commute
Flagged as commute in Strava -
workout_type
11 = race, From Strava, not sure of other values -
icu_ftp
User captured FTP -
icu_w_prime
User captured W’ -
icu_swim_ftp
User captured swim FTP in secs/100m -
hr_z1
Top of HR Z1 -
hr_z2
Top of HR Z2 -
hr_z3
Top of HR Z3 -
hr_z4
Top of HR Z4 -
hr_z5
Top of HR Z5 -
hr_z6
Top of HR Z6 -
hr_max
Top of HR Z7 -
icu_resting_hr
Resting HR -
hr_z1_secs
Secs in HR Z1 -
hr_z2_secs
Secs in HR Z2 -
hr_z3_secs
Secs in HR Z3 -
hr_z4_secs
Secs in HR Z4 -
hr_z5_secs
Secs in HR Z5 -
hr_z6_secs
Secs in HR Z6 -
hr_z7_secs
Secs in HR Z7 -
z1_secs
Secs in power Z1 -
z2_secs
Secs in power Z2 -
z3_secs
Secs in power Z3 -
z4_secs
Secs in power Z4 -
z5_secs
Secs in power Z5 -
z6_secs
Secs in power Z6 -
z7_secs
Secs in power Z7 -
sweet_spot_secs
Secs in power sweet spot zone -
icu_weight
In kg -
icu_ignore_power
Ignore power data from this activity -
icu_ignore_hr
Ignore HR data from this activity -
icu_ignore_time
Ignore time from this activity (dont count towards weekly totals) -
icu_recording_time
Elapsed time with time gaps of more than 30s excluded -
icu_warmup_time
Secs of the start of the activity excluded from decoupling calculations -
icu_cooldown_time
Secs of the end of the activity excluded from decoupling calculations -
icu_hrrc
Highest drop in HR over 1 minute from threshold HR or higher in the activity -
icu_hrrc_start_bpm
Starting HR of the icu_hrrc value -
icu_hrrc_avg_watts
Average power during the minute -
icu_power_spike_threshold
Percentage for power spike detection -
icu_pm_ftp
FTP derived from best max effort on this ride -
icu_pm_cp
CP modelled from best max effort on this ride -
icu_pm_w_prime
W’ modelled from best max effort on this ride -
icu_pm_p_max
pMax modelled from best max effort on this ride -
start_date
Start date in UTC timezone in ISO-8601 format e.g. 2020-04-05T05:56:41Z -
icu_sync_date
When last downloaded from Strava and analysed by Intervals.icu in ISO-8601 format -
timezone
Strava timezone