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The position of the elbow joint to the wrist as it relates to the trunk is

The position of the elbow joint to the wrist as it relates to the trunk is. proximal medial inferior anterior. The position of the elbow joint to the wrist as it relates to the trunk is. proximal medial inferior anterior.

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The position of the elbow joint to the wrist as it relates to the trunk is

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  1. The position of the elbow joint to the wrist as it relates to the trunk is • proximal • medial • inferior • anterior

  2. The position of the elbow joint to the wrist as it relates to the trunk is • proximal • medial • inferior • anterior

  3. The position of the shoulder to the elbow as it relates to the wrist is • proximal • distal • inferior • anterior

  4. The position of the shoulder to the elbow as it relates to the wrist is • proximal • distal • inferior • anterior

  5. Motion in the sagittal plane takes place about which axis? • longitudinal • mediolateral • transverse • anteroposterior

  6. Motion in the sagittal plane takes place about which axis? • longitudinal • mediolateral • transverse • anteroposterior

  7. Most human movements in running take place in • the sagittal plane • the frontal plane • the transverse plane • multiple planes

  8. Most human movements in running take place in • the sagittal plane • the frontal plane • the transverse plane • multiple planes

  9. A subject slowly bends over at the trunk. What type of muscle action is occurring in the trunk extensors during the activity? • Concentric/Shortening • Eccentric/Lengthening • Isotonic • The extensors are not active • Isometric

  10. A subject slowly bends over at the trunk. What type of muscle action is occurring in the trunk extensors during the activity? • Concentric/Shortening • Eccentric/Lengthening • Isotonic • The extensors are not active • Isometric

  11. Levers: The Law • Fload rload = Feffort reffort P1 vs P2: Mechanical Advantage or Disadvantage? • P1-> Advantage, P2-> Disadvantage • P1-> Disadvantage, P2-> Advantage • P1,P2 -> Disadvantage • P1,P2-> Advantage • I have no idea Feffort P1 P2

  12. Levers: The Law • Fload rload = Feffort reffort P1 vs P2: Mechanical Advantage or Disadvantage? • P1-> Advantage, P2-> Disadvantage • P1-> Disadvantage, P2-> Advantage • P1,P2 -> Disadvantage • P1,P2-> Advantage • I have no idea Feffort P1 P2

  13. Levers: The Law • Fload rload = Feffort reffort reffort = ? reffort = 200m 0.02m 50m 1m I don’t understand Feffort 100kg ? reffort rload rload=1m Feffort=my laptop (2kg)

  14. Levers: The Law Fload rload = Feffort reffort reffort = ? reffort = 200m 0.02m 50m 1m I don’t understand Feffort 100kg ? reffort rload rload=1m Feffort=my laptop (2kg) • reffort = (Fload rload)/Feffort • reffort = (100 kg) (1m)/(2kg) • reffort = 50m

  15. Lever Problems The biceps brachii and brachioradialis are both elbow flexors, but act at different distances from the elbow (5 cm, 20cm). 1) If I want to use the minimum amount of muscle force possible, which muscle and how much force should I use to lift the 2kg load (15cm)? Only one muscle can be used. A) Biceps : 6kg B) Brachioradialis: 1.5 kg C) Brachioradialis: 6 kg D) Biceps : 1.5 kg reffort-biceps reffort-brachioradialis rload J (Elbow)

  16. Lever Problems The biceps brachii and brachioradialis are both elbow flexors, but act at different distances from the elbow (5 cm, 20cm). 1) If I want to use the minimum amount of muscle force possible, which muscle and how much force should I use to lift the 2kg load (15cm)? Only one muscle can be used. A) Biceps : 6kg B) Brachioradialis: 1.5 kg C) Brachioradialis: 6 kg D) Biceps : 1.5 kg reffort-biceps reffort-brachioradialis rload J (Elbow)

  17. Lever Problems The biceps brachii and brachioradialis are both elbow flexors, but act at different distances from the elbow (5 cm, 20cm). 1) If I want to use the minimum amount of muscle force possible, which muscle and how much force should I use to lift the 2kg load (15cm)? Only one muscle can be used. 2) Indicate at which point along my arm I should hang the load if I want the biceps brachii to function as a force-amplifier. A B C D E: None reffort-biceps reffort-brachioradialis rload J (Elbow)

  18. Lever Problems The biceps brachii and brachioradialis are both elbow flexors, but act at different distances from the elbow (5 cm, 20cm). 1) If I want to use the minimum amount of muscle force possible, which muscle and how much force should I use to lift the 2kg load (15cm)? Only one muscle can be used. 2) Indicate at which point along my arm I should hang the load if I want the biceps brachii to function as a force-amplifier. A B C D E: None reffort-biceps reffort-brachioradialis rload J (Elbow)

  19. Lifting a box Calculate how much force in the back extensor muscles is needed when lifting a 1 kg box with the arms outstretched (r = 30 cm), compared to when the arms are beside the body (r = 5 cm). The muscle’s effort arm: (reffort = 5cm). Draw a diagram! • 6 times less force • 6 times more force • the same force • 150 times more • I don’t understand

  20. Lifting a box Calculate how much force in the back extensor muscles is needed when lifting a 1 kg box with the arms outstretched (r = 30 cm), compared to when the arms are beside the body (r = 5 cm). The muscle’s effort arm: (reffort = 5cm). Draw a diagram! • 6 times less force • 6 times more force • the same force • 150 times more • I don’t understand

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