Martin's goal is to increase his arm strength. look at these entries in his workout log and determine which principle of training he is most likely trying to avoid during his workouts.

monday

bicep curls 3 reps @ 15 lbs, 20 push-ups

tuesday

kettle bell swings 5 reps @ 15 lbs, 90 second plank

wednesday

yoga class

thursday

sit-ups 50, 20 push-ups

friday

bicep curls 6 reps @15 lbs, 90 second plank

saturday

30-minute easy run

sunday

rest

a) intensity
b) tedium
c) reversibility
d) progression