Start by performing the exercises with adequate rest between each different exercise until you get fitter. Once you can do the exercises and repetitions comfortably, work on increasing the number of different circuit exercises you can perform, or change the exercises for ones that are slightly harder - if you don't then your fitness will not improve.
Aim to do these exercise's twice a week, with at least 2 days rest between sessions. The main muscles used during skiing are those of your quadriceps (thighs), however a total body workout needs to be done, as all of your muscles will be used, and as soon as one of them becomes tire
d, your skiing ability will suffer which is when you have accidents.
The use of a Swiss Ball will improve your core strength, whilst aiding your stabilty and balance on the slopes. Performing aerobic exercises to improve your fitness will reduce your risk of injury, as you will be able to maintain and focus upon your skiing technique. Look at designing yourself a simple circu
it, whereby you will do a 30 - 45 seconds light jog / run, followed by 8 -15 of each exercise in a controlled manner.
On your first time around perform just the leg circuit, then the upper body and finally the abdominal exercises. Make sure that you do the lap jog / run after each leg / upper body or abdominal circuit.
Most accidents occur in the afternoon, this is due to both poor fitness levels in skiers, and the fact that as a recreational sport, most participates avoid both eating and drinking regularly. Maintain your food and fluid intake whilst on the slopes, preferably hot meals or such foods as flapjacks, and warm drinks.