Most races on snow are endurance events: 10-42km or more May require sprints or hard efforts for climbs, but climbs are frequently of short duration
Training zones
HR formula
Maximum Heart Rate = 211 – 0.64 x Age
Training Models
Polarized
Pyramid
Sweet Spot
sweet spot training is efforts that range around 86-95% of your current Functional Threshold Power (FTP) - so upper range L2
Aimed at Time Crunched athletes.
ie 2x20 minute session.
Level is uncomfortable
https://www.sportsperformancebulletin.com/endurance-training/training-structure-and-planning/polarized-training-really-work-recreational-athletes/
https://www.bikeradar.com/advice/fitness-and-training/training-zones/
https://worldmultisport.com/2020/10/13/zone-model-triathlon-training/