Suunto - Total ascent / total descent
We had a mail from a customer about Suunto T6/S6/X3HR altitude data.We thought it would be useful to publish this:Many thanks for the email.
The first two figures are, as you suggest, the MAX and MIN heights, above sea level, from a session. This figure is based on barometric pressure changes. It relies on an accurate setting of start altitude. It seems that these were pretty close, so no problem there. These are simply the HIGHEST and LOWEST points within a session
The other two figures are TOTAL ASCENT and TOTAL DESCENT heights.
While you are cycling you are either
On the flat, thus no climb
Going uphill, thus ASCENDING
Going downhill, thus DESCENDING
If ascending at a rate of 3 m/min for 6 minutes… the x3HR would put 18m to TOTAL ASCENT data (3m/min x 6 mins)
If descending, steeply, at 20m/min for just 30 seconds.. the x3HR would put 10m to the TOTAL DESCENT data (20m/min x 0.5mins)
This is done throughout the ride….
If you’re ride was pretty flat, the total ASCENT / DESCENT heights would be low
If the ride was hilly… it is represented by a high total ASCENT / DESCENT height
Normally, ASCENDED and DESCENDED totals will be quite similar… but not always identical.
Your two rides look very different… one very FLAT with on a 15m climbing and 9m descending
The second ride was pretty hilly… with climbs approaching 1000m
The max/min (start / finish) heights do not have any impact on ascend/descend figures.
Hope that makes sense
Suunto heart rate monitors with ALTITUDE ASCENT / DESCENT

This entry was posted on 02/06/2008 at 06:08 pm and is filed under HRM questions, Heart Rate Monitors, General heart rate. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response or trackback from your own site.