Welcome to day 12 of our Summer Strong Challenge! Today is an upper body arms and abs focused workout using the medicine ball, mine is 5kg, I recommend going for a medium weight ball. In todays workout we have a lot of reps and a lot of time under tension so expect some arm and ab burning! We have bicep curls and presses for toned arms and sculpted shoulders, rows and pushups for back strengthening, ab marches and planks for core strengthening, and crunch variations to tone the abs and strengthen the deep core.