Todays exercises might look simple enoughbut we promise if you do them quickly youll have a seriouslegand cardio workout.

Youll kick things off with the side shuffle to floor tap.

The focus of this move is speed and accuracynot distance.

woman doing a squat

Katie Thompson

Next youll move on to reverse lunges.

Most people findreverse lungeseasier than forward lunges because they put less strain on your knees and shins.

Youll finish this leg-and-cardio workout with squat thrusts, and then a pop squat as your bonus move.

Person doing a side shuffle exercise

Both of these will work your entire lower body and really get your heart pumping.

The leg-and-cardio workout below is for Day 5 of theSELF Better Together Challenge.

Check out the full month of workouts righthere.

reverse lunge

Or go to the workout calendarhere.

If you havent signed up to receive daily emails, do thathere.

Do each move below for your selected period of time.

Woman doing glute bridge exercise

At the end of each circuit, rest for 60 seconds.

Do the entire circuit 35 times.

Stand with your feet hip-width apart, core engaged, and hands clasped at chest height.

squat thrust

Come into a half squat by bending your knees a little and sending your butt back.

Move your feet fast, going for speed rather than how big of a step you might take.

When you reach the end, tap the floor with your right hand.

squat jack

Shuffle to the left and tap your left hand to the floor.

Continue to move back and forth as quickly as possible.

Stand with your feet shoulder-width apart, core engaged.

Step back with your right foot and bend both knees to sink into a lunge.

Keep your core engaged, hips tucked, and back straight.

Return to your starting position by pushing off your right foot and stepping forward.

Repeat on the other side.

Continue to alternate sides.

Make it harder: Hold a dumbbell in each hand.

Think of this move as a modified burpee without the jump or push-up.

Stand with your feet hip-width apart, core engaged, and hands at sides.

Jump your feet back to come into a high plank position and pause.

Make it harder: Add a vertical jump as you stand.

Keep your core engaged and push through your glutes to stand.

As you stand, jump and bring both feet together, taking a hop in place.

Immediately jump feet apart and sink into a squat again.

Repeat, hopping once in place between each squat.