Quiz Time
What do the following things have in common?

Sitting at a desk
Long distance running
Improper squatting
Chondromalacia and other knee problems
Lower back pain

And what about these?

An uppercut
A homerun swing
Sprinting
Dunking a basketball
The inability to lie (Oh, you knew it was coming and I did you the favor of getting it out of the way early instead of making [...]

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