Instruction: Categorize these exercises as either upper body or lower body exercises: squat, bench press, strict press, deadlift, barbell row, dumbbell curls, pull-ups, chin-ups, leg extensions, leg curls, calve raises, wall sits, plank.

Response: Lower body exercises are: squat, deadlift, leg extensions, leg curls, calve raises, wall sits.
Upper body exercises are: bench press, strict press, barbell row, dumbbell curls, pull-ups, chin-ups, plank.