There's no better sight for a quick bowler than seeing his prey, the batsman, jump around with fear in his eyes, not knowing which way the ball will move or how fast it will get there. But as exciting as that may sound, it's equally difficult to master these crafts.
Bowling quick has a lot to do with genetics.
Speed is tougher to generate than swings. For starters, everybody has either the fast-twitch fibres (white) or slow-twitch ones (red) in their body. These determine whether you can be a quick bowler, like Brett Lee, or a medium-pacer, like Praveen Kumar. While fast-twitch fibres give you a definite edge, there are other factors that help an individual generate pace.
Go through this link to know about Slow-twitch vs. Fast-twitch Muscle Fibers.
Here some points to remember to generate sheer pace:
  1. A proper run-up : A bowler must accelerate as he gets closer to the stumps, while keeping both arms close to the body (close levers ensure no wastage of energy).
  2. A high jump: The momentum generated by the run-up is transferred to the jump. That's why most genuine quick bowlers - Imran Khan, Brett Lee, Malcolm Marshall - have a reasonably high jump
  3. A proper landing: When the front foot hits the ground, the force generated is transferred to the hip before moving upwards. The bowler rotates the shoulder, which uses the force it receives from the movement in the hip. This force is then transferred to the wrist. The result: The force generated from the run-up, the landing, the hip movement, the shoulder rotation and the wrist movement is translated into the speed of the ball. The more aligned the movements, the better the outcome.
Your fibres don't limit you, either. People increase their speed as they gain power and better alignment. Ajit Agarkar is one such player who started as a medium-pacer (he even had the wicket keeper standing up to the stumps in Under-16 cricket) but grew into a genuine quick.
From the start of the run-up to the end of the follow-through, it's important to keep the body aligned in the direction of your target - the batsman. The bowler must stay as close to the stumps as possible after delivering, without getting into the danger zone, while moving towards the batsman. A lot of bowlers, Zaheer Khan and Praveen Kumar among them, are guilty of either having no follow-throughs or very limited ones, while others tend to fall towards the off side, killing the momentum and with it the speed.
A bowler must also be careful about the order in which his limbs move in his action. If the shoulder begins to move before the hip has completed its action, the hip will stop contributing to the building up of momentum.
Knowledge Credits: Aakash Chopra (@cricketaakash) | Twitter (Former India opener)
There is not much that is more satisfying for a seam bowler than steaming in, beating the batsman for pace and seeing the stumps cartwheeling back.
If you know this man above in this picture, then go through this link below to read his article : Australia's Brett Lee reveals the secret of bowling fast.
If you wanna improve yourself as a genuine fast bowler go through this link below and take a look on the hints and tips for fast bowling: Now you can bowl fast too
If you want to spare some money to increase your abilities more on fast bowling then buy Ian Pont’s online course through this link: PitchVision.
Still lack of confidence ? Remember “Rome wasn’t built in a day.”
Do you know this Pakistani quicky ?
Look at his spell in world cup 2015 against Australia.
To produce such spell you need a lot of hard work ,patience and discipline.
Go through this link and take some inspirations: From 110 to 150 kph, the Wahab Riaz story
Photo credits: Google Images
Link credits: Google Search
Enjoy your fast bowling and keep breaking wickets and confidence of opposition batsmen by your sheer pace.
Wishing you to flourish as world class fast bowler.
Hope this helps out.