APPLICATION IN TRIPLE JUMP
Hop, Step, and Jump: Each phase involves explosive extension of the leg at the hip, knee, and ankle joints. These joints act as axes, the muscles provide force, and the body weight or ground resistance is the load.
Take-off and Landing: During take-off, the athlete extends the leg, using the third-class lever system to generate high speed at the foot, propelling the body forward. The longer the resistance arm (distance from axis to foot), the greater the speed at the end of the lever, which is crucial for maximizing jump distance