The Broad Jump Disconnect
Horizontal Power vs. Vertical Power The broad jump measures horizontal force production. The vertical jump measures vertical force expression.

Horizontal Power vs. Vertical Power The broad jump measures horizontal force production. The vertical jump measures vertical force expression.

Around early adolescence, something happens. Athletes who once improved rapidly begin to stall. Vertical stops increasing. Speed plateaus. Injuries begin to surface. This is not random. It is developmental.