"Quick burst" means performing a quick and sudden release of energy or effort. It refers to doing something swiftly and intensely for a short period of time. Full definition
Your dog's digestive system can quickly and efficiently absorb and use these for quick bursts of energy. (breedingbusiness.com)
Both will usually feature a pulse option for quick bursts of speed. (idealhome.co.uk)
Once the athlete develops a baseline level of strength, there are countless exercises that can be done in quick bursts of energy. (blog.bridgeathletic.com)