Leg Spring Stiffness is an indication of leg strength. There is no good number, but many runners have an LSS between 6 to 14 kN/M. If LSS data is missing in your data, see if any of the following apply:
1. Suunto and Polar watches do not record LSS. If you connect PowerCenter to Movescount or import your data manually into PowerCenter, LSS (and other advanced metrics) will not be displayed. You can get these advanced metrics by uploading your data straight from Stryd by doing an offline sync with the Stryd app on your phone.
2. Other apps like iSmoothRun can connect to Stryd and will show power data, but do not record advanced metrics like LSS. You can get these advanced metrics by uploading your data straight from Stryd by doing an offline sync with the Stryd app on your phone.
3. If you fall out of the range and have an LSS lower than 4 kN/M, your data will not show as our algorithm cut off LSS when it drops below 4 kN/M.
4. If you power hike with your Stryd, you will get power, pace and distance data. However, LSS (and some other metrics) are left out of the data as they are not meaningful at walking pace.
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