I really like kettlebell swings as an alternative to sprints.
Like sprints, you can do just one 5 min session of intervals every few days and still get mega aerobic and anaerobic benefits.
You can do 30sec on /30 sec off, or just one long set, working up to say 120 reps, or my favourite (...least-favourite, when Im not up to the intensity) 40 sec on, 20 sec off.
Advantages:
-Low Impact. No knee problems.
-Do them at home
-Build up your sexual power and stamina. seriously after a few months of progression on KB swings, you become a sexual jackhammer. The movement is an explosive hip thrust...girls will be like "what.. the.. omg. ommGGG..!!"
![[Image: wink.gif]](https://rooshvforum.network/images/smilies/wink.gif)
-Easily to progress by adding reps, sets, reducing rest periods
-Builds alot of muscle and strength, surprisingly (probably because it's explosive). Your ass and hams will grow, your deadlift will go up (Although sprints do this too).
Disadvantages:
-Suck for travelling. Few gyms have them, so have to buy a new one in each place.
-At some point you need to increase the weight and use a new KB