A Grab a pair of dumbbells and stand with feet together, arms by sides, palms facing in. Do a hammer curl, bending elbows and curling weights up (palms still facing in).
B Take a wide step out with right foot and lower into a diagonal lunge, allowing back foot to pivot. (Imagine you're standing inside a square and step to the top right corner, reaching back foot to the bottom left corner.) Reach dumbbells to the floor on either side of front knee. Push off front leg to return to starting position, curling arms up as feet step together; repeat. Do 1 full set on the right leg, then switch sides for the second set.