stroke mechanics in a sentence

1. The putting clinics are designed to improve golfer's putting by teaching the proper setup and stroke mechanics and developing a systematic practice program.
2. Counsilman, known as Doc, was a molder of champions, an inventor, a consultant, an author and an authority on exercise physiology and stroke mechanics.
3. Once I was inside the confines of the squash court, a brightly lighted 21-by-32-foot white room, Widney thrust a graphite racquet in my hand, spent about 60 seconds on stroke mechanics and said, " Go hit ."
4. It's difficult to find stroke mechanics in a sentence.