Combo 1.

A. Single arm plank 2 row x 10 each side

B. Bridge x 15

+ 60 seconds high knee sprints on the spot

Combo 2.

Repeat A & B

+ 60 seconds of mountain climbers

Do 3 – 5 rounds

Variations

Do Plank 2 rows on your knees.
Both exercises can be done without out weight.