When you examine the calculated power outputs, how does the Lewis equation compare with the Johnson average and the Harman average power equations? With the Johnson and Harman peak power equations? The Sayers equation? If differences exist between the results for the various formulas, explain what may contribute to these differences.

Lewis Formula:

Average Power = (square root of 4.9) x body mass(kg) x (square root of jump distance(m)) x 9.81

Average Power = 2.2136 x 81.05 x 0.36 x 9.81

Average Power = 633.612 Watts

Sayers Formula:

PAPw (Watts) = 60.7 jump height(cm) + 45.3 body mass(kg) - 2055

PAPw = (60.7 x 36 + (45.3 x 81.05)) - 2055

PAPw = 2185.2 + 3671.565 - 2055

PAPw = 3801.765 Watts

Harman Formula:

Peak power (W) = 61.9 jump height (cm) + 36.0 body mass (kg) + 1,822

Average power (W) = 21.2 jump height (cm) + 23.0 body mass (kg) - 1,393

Peak power (W) = (61.9 x jump height (cm)) + (36 x body mass (kg)) + 1822

Peak power (W) = (61.9 x 36) + (36 x 81.05) + 1822

Peak power (W) = 2228.4 + 2917.8 + 1822

Peak power (W) = 6968.2 Watts

Average power (W) = (21.2 x jump height (cm)) + (23.0 x body mass (kg)) - 1393

Average power (W) = (21.2 x 36) + (23 x 81.05) - 1393

Average power (W) = 763.2 + 1864.15 - 1393

Average power (W) = 1234.35 Watts

Johnson & Bahamonde Formula:

Power-peak (W) = 78.6 VJ (cm) + 60.3 mass (kg) - 15.3 height (cm) - 1,308

Power-avg (W) = 43.8 VJ (cm) + 32.7 mass (kg) - 16.8 height (cm) + 431

Peak power (W) = (78.6 x VJ (cm)) + (60.3 x mass (kg)) - (15.3 x height (cm)) -1308

Peak power (W) = (78.6 x 36) + (60.3 x 81.05) - (15.3 x 176) - 1308

Peak power (W) = 2829.6 + 4887.315 - 2692.8 - 1308

Peak power (W) = 3716.115 Watts

Average power (W) = (43.8 x VJ (cm)) + (32.7 x mass (kg)) - (16.8 x height (cm)) + 431

Average power (W) = (43.8 x 36) + (32.7 x 81.05) - (16.8 x 176) + 431

Average power (W) = 1576.8 + 2650.3 - 2956.8 + 431

Average power (W) = 1701.3