Do More Interval Training.
Interval training alternates short, intense bursts of activity (i.e. running/sprinting, HIIT workouts) with periods of active recovery in between that is lower in intensity (i.e. walking). When it comes to cardio, there are a million different ways that you can apply intervals to your own workout that are both effective and time efficient. And when you’re thinking about constantly changing up what you’re doing and how intense you’re doing it, this is a sure way to make the time fly. On top of that, the higher the intensity, the less time you need to exercise. For this reason interval training can be done in just 20-30 minutes when done effectively, which could be defined by achieving a target heart rate that is 70-85% of your maximum. Example:
Warm up for 5 minutes (light cardio, dynamic stretching).
Jog for 3 minutes, sprint for 30 seconds, walk for 30 seconds, repeat 5x (20 minutes total).
Cool down for 5 minutes (light walk, static stretching).
TOTAL WORKOUT TIME: 30 minutes.
As your endurance improves, lengthen the duration of intense bursts and shorten the duration of active recovery.