This "Time Crunch" legs blaster is another giant set with varying reps, loads, and movement speeds.
This rapid-fire routine will provide you with a workout you can do when your schedule starts to fill up. Because, in the grand scheme of things, short, intense workouts are always better than no workout at all.
Go through each exercise consecutively, and take a 60-second rest after the hamstring curls. Do as many rounds as possible in 10 minutes.
In a separate circuit, perform 15-second incline treadmill sprints with 15 seconds of rest. Do this for five minutes. This will further train your legs, and also hit your calves.