WORK Biomechanic PDF

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Work biomechanic...

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7) Prepare angle during high knee flexion side view for each of the jumps executed at the time of landing Knee flexion angles DROOP JUMP

an angle observed in high knee flexion side view of 46 ° kinesiological

CONTRAMOVEMENT JUMP

an angle observed in high knee flexion in side view at 58 ° kinesiological JUMP SQUAT

an angle observed in high knee flexion side view 77 ° kinesiological

9) Develop career jump in front view, with reference to the midpoint between the anterior superior iliac spines - upper and identify:

a) maximum jump height in cm, for each of the jumps maximum heights DROOP JUMP

The maximum height of the jump droop is 58.27 cm CONTRAMOVEMENT JUMP

The maximum height of the contramovement is 48.86 cm

JUMP SQUAT

The maximum height of the squat jump is 50.47 cm

b) Slew rate at the time of takeoff, maximum speed of the track jump and jump speed at the time of maximum height for each of the jumps 

Takeoff speed DROOP JUMP

Takeoff speed droop of the jump is 9.31 m / s CONTRAMOVEMENT JUMP

Takeoff speed of the contramovement is 8,41 m / s

JUMP SQUAT

Takeoff speed of the squat jump is 7.22 m / s



Maximum speed Trajectory jump

DROOP JUMP

The maximum speed of the droop jump is 9.19 m / s CONTRAMOVEMENT JUMP

The maximum speed of the contramovement is 9.61 m / s

JUMP SQUAT

The maximum speed of the squat jump is 4.82 m / s 

Speed at the maximum height of the jump DROOP JUMP

The speed at the maximum height of the jump in the droop jump is 0.27 m / s CONTRAMOVEMENT JUMP

The speed at the maximum height of the jump in contramovement jump is 0.27 m / s

JUMP SQUAT

The speed at the maximum height of the jump in the squat jump is 0.12 m / s 

Flight time

DROOP JUMP

The flight time of the droop jump is 0: 00: 00: 60/100 CONTRAMOVEMENT JUMP

The flight time of the droop jump is 0: 00: 00: 56/100

JUMP SQUAT

The flight time of the droop jump is 0: 00: 00: 46/100



Comparison chart

Jump information Knee flexion angle Maximum height of jump Takeoff speed Maximum path speed jump Maximum speed jump height Flight time

droop jump

squat jump

46 °

58 °

contramovemen t Jump 77 °

58.27 cm

48.86 cm

50.47 cm

9.31 m / s

8.41 m / s

7.22 m / s

9.19 m / s

9.61 m / s

4.82 m / s

0.27 m / s

0.27 m / s

0.12 m / s

0: 00: 00: 60

0: 00: 00: 56

0: 00: 00: 46

DISCUSSION

According to the results, we can see that the person studied has a high strength and adaptability to the jumps because practicing parkour, just as it is thanks to strengthening their quadriceps, gluteus and gastrocnemius especially the strength of the rectus femoris and gluteus maximus and which give improved jump in power as contramovement and droop jump reactive force giving high values of bending at each hop obtaining angles greater than 30 ° in each eccentric motion, therefore its speed is also assessed which much help the vast of the quadriceps as greatly enhance the acceleration of movement in the jumps,We can also demonstrate the aid of antagonistic muscles at the time of bending since although the quadriceps three times stronger than its antagonistic muscle flexed hamstrings help eccentric motion enhancing the speed and iliotibial band aid handling stability of the movement of the jumps and the same as the ligaments and the capsule as such and also some of the muscle groups mentioned above, also they participate adductor but to a lesser extent the gastrocnemius also have an important function as it runs through the femoral condyles and help in a significant way to get a higher jump and improves the reactive force as can be seen in the data obtained with the patient.also they involved the adductors but to a lesser extent, the gastrocnemius also have an important role as it extends to the femoral condyles and help in a meaningful way to get a higher jump and improves the reactive force as seen in the data obtained with patient.also they involved the adductors but to a lesser extent, the gastrocnemius also have an important role as it extends to the femoral condyles and help in a meaningful way to get a higher jump and improves the reactive force as seen in the data obtained with patient....