Straight forward strength work here! Work for 3 minutes, alternating between the push-ups and squats. Rest one minute between rounds, and repeat for 5 rounds. Feel free to add in a walk / set of stairs / etc if between each round or as a warm-up / cool down to add in a bit more cardio. 

I did incline push-ups and mini pistols (my belly gets in the way of depth!) But I still like working on single leg strengthening to avoid compensation, as my R leg tends to be stronger / more dominant than my L. 

Push ups from plank, knees, at incline, or to wall, and adjust your foot width as needed (wider is typically more stable). Pick a sustainable position (ideally for all 5 rounds), and make sure that you don’t experience any pulling or stretching sensation at your lower abs or over-extension of that low back. 

Pistols - aka single leg squats. You can always use your hand to help stabilize - opposite hand on chair, table, banister. You can also keep your opposite heel down on the ground for balance, or squat back to touch down or sit into a chair. Air squats or goblet squats are also good subs if single leg squats are too challenging. 

Let me know if you have questions!