Staying power on the slopes demands three kinds of cardiovascular fitness: an aerobic base (essential for recovery), a high lactate threshold (so you can ski longer before you feel the burn) and lactate power (which provides the oomph you need for intense efforts). Here’s a plan to help you develop all three.
AEROBIC BASE > Choose your training methods (biking, running, swimming, rowing, power walking) and commit to three to five weekly aerobic sessions for about three months. Sessions can range from 20 to 90 minutes, depending on your fitness level, but increase the time slowly (five minutes per week).
TALK WHILE YOU WALK > Building an aerobic base takes time. Each training session should be moderately challenging but not unbearable. You should be able to converse during your training time—no huffing and puffing.