I have just started Foundation One. I am currently working my way through the mastery levels of each progression, to determine my starting point. So far I am at week 4 and can perform mastery levels on all the PE4 exercises.
I can easily perform 5x5reps of speed skater squats (Single Leg Squat Prep Element 4), although, I can't even perform 1 rep of strict form deck squats (SLS/ PE1).
I have had three operation on my right knee, including an ACL reconstruction. As a result, I have a much reduced range of motion. I simply can't bend my right knee enough to get my feet under me when I roll forward. If I keep my feet together, my feet end up too far forward as I roll out of the deck squat and I end up firing myself backwards as I try to stand up.
I can easily perform 5x15 reps of deck squats if I allow my feet to stagger as I roll out or if I do them on a slope, facing downhill.
Given my circumstances, have I shown enough by mastering subsequent PEs to continue through the Single Leg Squat progressions? Should I stick with deck squats until I can actually perform them with strict form?
Are there any other exercises I can try, either as a replacement, or as a prep element for deck squats?
Are there any integrated mobility exercises I could incorporate into my SLS progressions?
Any advice or tips would be greatly appreciated.