Here is a WOW lower body blast alternating cardio and toning exercises:

High-impact option:

• 10 high knee runs, 5 Jump Squats
• 10 alternating jump lunges, 10 alternating (5 right/5 left) rear lunges
• 30 second jump rope, 10 calf raises
• 8 mogul hops, 10 alternating (5 right/5 left) side lunges

Low-impact option:

• 10 alternating knee raises, 5 Squats
• 10 alternating rear toe taps back, 10 alternating (5 right/5 left) rear lunges
• 30 seconds march in place/pump arms, 10 calf raises
• 8 alternating quick side taps right and left, 10 alternating side lunges