These are some posts I made in other threads, don't have time to read this thread now:
#1:
http://startingstrength.wikia.com/wiki/Starting_Strength_Wiki
This. Do Starting Strength. Do not modify the program, squat to at
least parallel (not 90 degree legs, but when hip crease drops below
knees). Do not modify the program. Go heavy, eat reasonably and rest
properly. Do not miss workouts (3x a week). Do not modify the program.
Couple other things
1) P90x is meh, Crossfit (www.crossfit.com) is the real deal. P90 is better than nothing but CrossFit is far superior.
2) Cleans/snatches (power or full, power is easier to learn without a
coach) will build awesome power development, plus you can work front
and overhead squats which are amazing for your core.
3) Squatting on a bosu ball (the half ball thing someone is talking
about) is pointless and dangerous, you are asking for ankle/knee
injuries. You do not fire more muscle tissue squatting say 135 on a
bosu ball verus 225 on the ground. Think about it, what sports (other
than lumberjack log rolling) are you on an unstable surface? The ground
doesn't move when you ski, you do, so squat HEAVY on solid ground,
trust me every muscle from your ankles up is going to be working to
stabilize the bar through the range of motion.
#2 (re: Sammy C's video)
I think big mountain riders work out properly more often than freestyle skiers. Problems in this video:
1) Standing on swiss balls does nothing other than risk ankle/knee injuries
2) You can get "cardio" better ways than in a gym on equipment (sprint
repeats, hill repeats, trail running, bike sprints, CrossFit etc)
3) He is doing hip extensions wrong on the swiss ball, better to do
them on the GHD type bench so you can get a full range of motion from
the hips (he is trying to strength erector spinnae in lower back)
4) Yes being flexible is key to preventing injury, but you have to
be strong through the range of motion too (e.g. weightlifting) if you
want to be safe from injury in a position with load on the body
(landing a jump)
5) Number one issue really, you need to do heavy squats with good
form. Period. Low reps heavy weight is how you will build total body
strength not just legs. 5 reps for 3 or 5 sets is the way to go,
progressive loading etc. My prediction is that unless Jon gets his
squat up a lot, to at least 1.5X-2X bodyweight (so 120-160kg) , he will
not be competitive on the world cup/olympics in GS.
All the said he is a crazy good skier, if he just tweaked some
stuff he would be even stronger and it might help him a bit more who
knows.