I noticed this bug back in 1.14.0 and it applies to every version I've tried. I was hoping in when 1.16.0 came out, it would fix it. It did fix how long it took before it started draining, but never fixed how fast it drained. This bug is so annoying I can't play Bedrock anymore cause of how much it renders the game unplayable for me. I tend to jump and sprint a lot, and its not a problem in Java or the Legacy Console edition. I only saw one other report of this bug (MC-177281) and it said it was invalid. This bug is real, and should be fixed ASAP. It's been around for too long and I really wanna be able to play with my friends who don't have Java. 

If you wanna see for yourself how bad it is, go create an easy survival world and sprint-jump around for about 3-5 minutes. Even without taking damage, it drains really quickly.