no way, you're knees cant take that and nor should they
1 - get stronger...a lot more stronger...like deadlift twice your bodyweight stronger
2 - decrease bodyfat...if you're not in single digits you're carrying too much baggage that is slowing you down, ecpecially for sporiting
3 - sprinting is plyometric exercise...couple that with all those jumps that you probably don't even know what they do for you and you'll break down quicker then the rockets in the first round (well not this year)
4 - work on your starts (technique and explosiveness out of the blocks)...if you can't start fast then you can't run fast, simple as that (well except if you're the current fastest man in history with 3 meter strides that means he could hop 100m faster then i could sprint it)
www.uponlinetraining.com