Excellent video!
A few general comments:
- sprinting enhances the (rapid) recruitment of muscle fibers and increases in acceleration/speed beautifully transfer to other actions specific to the sport (in tennis the shots, in soccer kicking the ball).
- it contributes to teaching relaxation, other big advantage.
A few specific comments on the video.
- she’s a very good athlete
-sprinting form and posture seems generally very good - it seems that feet tend a little bit to collapse
- with push-up starts there is no full triple-extension, more general strength needed?
Very good video!