Biomechanics of Power clean vs Clean and Press

Biomechanics of Power clean vs. Clean and Press (edited calculations)

Work = ΔKE + ΔPE ΔKE = 0 ΔPE = mg(hf – hi) = (43. 09 kg)(9. 81 m/s 2)(1. 523 m-. 05 m) = 622. 66 J Total Work = 622. 66 J ΣFavg = maavg = 43. 09 kg(1. 445 m/s 2) = 62. 27 N ΣFavg = Farms + Fgravity = 62. 27 N Farms = 101. 09 N - Fgravity = 62. 27 N – mg = 62. 27 N – 43. 09 kg(-9. 81 m/s 2) Farms = 484. 98 N Δtime = 1. 984 -. 48 = 1. 50 seconds Power = Work/time = 415. 11 Watts

Work = ΔKE + ΔPE ΔKE = 0 ΔPE = mg(hf – hi) = (43. 09 kg)(9. 81 m/s 2)(1. 523 m-. 7808 m) = 313. 74 J Total Work = 313. 74 J ΣFavg = maavg = 43. 09 kg(. 5131 m/s 2) = 22. 11 N ΣFavg = Flegs + Fgravity = 22. 11 N Flegs =35. 90 - Fgravity = 22. 11 N – mg = 22. 11 N – 43. 09 kg(-9. 81 m/s 2) Flegs = 444. 82 N Δtime = 4. 076 s - 3. 216 s =. 86 s Power = Work/time = 364. 81 Watts

Work = ΔKE + ΔPE ΔKE = 0 ΔPE = mg(hf – hi) = (43. 09 kg)(9. 81 m/s 2)(1. 462 m-. 01 m) = 613. 78 J Total Work = 613. 78 J ΣFavg = maavg = 43. 09 kg(1. 755 m/s 2) = 75. 62 N ΣFavg = Farms + Fgravity = 75. 62 N Farms = 75. 62 N - Fgravity = 75. 62 N – mg = 75. 62 N – 43. 09 kg(-9. 81 m/s 2) Farms = 498. 33 N Δtime = 1. 58 s -. 248 s = 1. 332 seconds Power = Work/time = 460. 80 Watts

Work = ΔKE + ΔPE ΔKE = 0 ΔPE = mg(hf – hi) = (43. 09 kg)(9. 81 m/s 2)(2. 065 m-1. 462 m) = 254. 90 J Total Work = 254. 90 J ΣFavg = maavg = 43. 09 kg(. 2193 m/s 2) = 9. 45 N ΣFavg = Farms + Fgravity = 9. 45 N Farms = 9. 45 N - Fgravity = 9. 45 N – mg = 9. 45 N – 43. 09 kg(-9. 81 m/s 2) Farms = 432. 16 N Δtime = 2. 68 s – 1. 708 s =. 972 s Power = Work/time = 262. 24 Watts

Clean (PC) Squat Clean (CP) Shoulder Press Work (J) 622. 66 313. 74 613. 78 254. 9 Force (N) 484. 98 Power (W) 415. 11 444. 82 498. 33 432. 16 364. 81 460. 8 262. 24 0. 86 1. 332 0. 972 Time (s) 1. 5