Orienteering can be compared with Cross-Country skiing both in competition time and terrain. With the exception of the new sprint and park-orienteering formats with 15-min competition times, most of the competitions last from 30 minutes to 1:30 hours. The sport is also held in typical ski terrain, with uphills, downhills and flat sections. The orienteering competition season is a bit longer than for Cross-Country skiers, starting in March/April and ending in October. The base-training season is thus in November until March/April.
– During the base-training period I prioritize volume, as well as 2 — 3 interval session per week, says Bernt Bjrnsgaard. These intervals are always threshold intervals, avoiding a large lactate buildup.