This drill has many variations. It is outstanding to teach players to get their entire throwing arm into the throw. If a player is short arming their throws or only using their wrist to throw, the towel drill can correct it.
Generally, 14 year old average cruising speed would be about 65 mph. Average freshman pitcher (14 to 15 year old) cruising speed would be about 70 mph. Average cruising speed for a good high school pitching prospect at 14 to 15 years old would be about 75 mph.
A 32 inch vertical equals a power to weight ratio of that close to or over 1.5. This means the athlete can produce power that can push about 150% of his own body weight or more. A 1.5 power to weight ratio would be an accurate requirement for a pitcher to have the power to produce a 90+ mph fastball.
Some keep the knee to straight at plant and can't follow-through and usually pitch high. ... Usually this is a high pitch. Some kids land either too far left or right of this line which leads to "opening" the shoulder too soon, or being too closed which also causes loss of velocity.
“When baseball pitchers lose release velocity, it is always a result of the decrease in joint stability,” said Marshall, who has a Ph. D. ... Marshall argues that pitchers can maintain or regain velocity by correcting their motion, weight training and exercise.