Not all jumps train the same quality. Different jump variations stress different parts of the force–time curve and that matters if you’re trying to purposefully sequence your training. Box jumps are a good starting point. They bias concentric output, limit landing stress / mute the eccentric. That makes them useful early in a cycle or when you’re managing fatigue or coming back from injury. Easy to scale, easy to load, low cost. Broad jumps, bounds, and hops start to connect weight room outputs