Body weight exercises
Body weight exercises such as burpees are a great way to really up the cardiovascular intensity of your exercise program. Technique is important with this exercise though to avoid overloading the low back (e.g. make sure you do not let the pelvis drop too low on the kick out landing as this can over extend the low back).
According to: https://www.muscleforlife.com/the-ultimate-bodyweight-workout-routine/
“Bodyweight workouts have several advantages over weightlifting as well, including:
- Convenience and flexibility (you can do them at home, on the road, etc.).
- Affordability (no gym membership or home gym needed).
- Time efficiency (no driving to the gym, waiting for equipment, etc.).
If you’re looking to build a large amount of muscle and strength as quickly as possible, though, they’re not the best choice.”