Are there still people arguing whether squats are safe of not?
Apparently the witch hunt started with Karl Klein’s book “The Knee in Sports”.
In “Full Squats or Not” Tommy Suggs takes a look at it.
To summarize: Back squats that break parallel are safe for the knee and should form the basis of your training. If you are a weightlifter, do both front and back squats unless there is a problem that prevents you from performing one or the other
There is no research that proves going below parallel when performing a squat is detrimental in any way physically, certainly not the research done by Karl Klein and reported in his book, The Knee in Sports. Don’t play telephone with the facts.