Ethan, there is an entire board titled Recruiting Process in which you will find threads examining every minute detail of the recruiting experience.
http://forums.army.ca/forums/index.php/board,35.0.html
You should also find these links helpful:
Recruiting FAQ - http://forums.army.ca/forums/threads/21101.0.html
Canadian Forces Aptitude Test - http://army.ca/forums/threads/21101/post-103977.html#msg103977
Fitness requirements at enrolment, see page 12 of this brochure:
http://www.recruiting.forces.ca/media/pdf/physical_fitness_en.pdf
Search page - http://forums.army.ca/forums/index.php?action=search;advanced
To summarize. Welcome to Army.ca, start reading.