This is completely wrong!!:
"3) Full squats are superior to half or quarter squats. In a comparison of squats to parallel and half or quarter squats, muscle activation is highest in the last phase of the descent and first phase of the ascent. In simple terms, your muscles are working hardest as you go from parallel to a deep squat and vice versa."
Look at the actual study he references:
Clark, D., Lambert, M., et al. Muscle Activation in the Loaded Free Barbell Squat: A Brief Review. Journal of Strength and Conditioning Research. 2012. 26(4), 1169-1178.
lafitness.com.br/biblioteca/artigos/muscle-activation-in-the-loaded-free-barbell-squat-a-brief-review.pdf
From the actual study:
1. "Muscle activation is not different in squats to varying depths at moderate loads. Within a parallel squat, it appears that activation is greatest in the last phase of the descent and the first phase of the ascent."
2. "Only gluteus maximus activation increases with squat depth"
Also from the study: "Pereira et al. (25), however, divided the eccentric and concentric movements into 30 (degree ) segments and found that activation was highest for the deepest segment of both phases in a RM parallel squat."
So from this we see that approaching parallel in the parallel squat has higher activation than closer to standing up; maybe Poliquin confused this with full squat somehow?
So is Charles Poliquin lying or just has reading comprehension issues?
Besides muscle activation, safety is also a consideration, which Poliquin fails to consider in this article.
Deep squats seem to be bad for the knees: exercisebiology.com/index.php/site/articles/are_deep_squats_bad_for_your_knees/
lookgreatnaked.com/articles/are_deep_squats_a_safe_and_viable_exercise.pdf
Very disappointing. Makes me wonder if other Poliquin articles that I've read in the past are also giving wrong information.