This workout only uses 1 pair of dumbbells and hits all the muscles in the body. Supersetting the front of body, legs and back of the body, you'll cycle through 2 circuits to give your muscles the challenge and variety they need - and in under 15 minutes.

Tools: 1 pair of moderate dumbbells

2 x 45sec
Lunge to squat
Push up to dumbbell pick up (alt: moving bridge chest press)
Alt row

2 x 45sec
Weighted glute bridges
Narrow press to skull crusher
Wide row to curl