Didn't mean to sound harsh with my earlier post, and your pup certainly kooks like it enjoys jumping. And I think that's when some people think 'great she/he jumps for fun'.
Most 5 bar gates are around the 5 foot mark, so that's double the height of your bitch, it's a fair way down for a young still growing, joints etc, dog to land. Scrambling over logs etc, like your bitch is doing in this clip, is all I let any youngsters I've had do til they're getting everything together, balance, coordination etc, which is normally over a year old, or even longer with some dogs.
Anyway, no offence inten