trapezius muscle,
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- How much force must be produced by the biceps brachii, attaching at 90? to the radius at 3 cm from the center of rotation at the elbow joint, to support a weight of 200 N held in the hand at a distance of 30 cm from the elbow joint? (Neglect the weight of the forearm and hand, and neglect any action of other muscles)Due to fiber alignment, the quadriceps muscle group is better at producing increased force, not velocity. True FalseBefore testing a true 1-RM exercise, why should you allow your client to complete 3 trial repetitions first? Select 2 correct answer(s) To reduce risk of injury To ensure form is correct To fatigue the muscles to a "normal" functional strength To focus on the eccentric and concentric portions of the movement
- In the EMG experiment. the measured force came from the contraction of which muscles? Check all that apply. Check All That Apply flexor digitorum superficialis flexor pollicis longus flexor carpi ulnaris flexor carpi radialis palmaris longusWhat are all of the potential synergist/neutralizer at the wrist when the flexor carpi radialis acts with the goal to only flex the wrist?If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? hhh
- Two lifter's knees are of interest at a specific moment in their lifts. In both lifts, the knee extensor torque is 100 Nm, requiring quadriceps tendon/patella ligament forces of 1000 N (about 220 Ibs). Despite equivalent knee torques and quadriceps forces, patellofemoral joint forces are higher on the knees of lifter A. Briefly explain why. Edit View Insert Format Tools Table 12pt v Paragraph v BIUAContinually training with a specific loading condition that does not vary over time will most likely result in _________________ and little additional improvement.velocity specificty accommodationmuscle action specificityreversibilityWhen recording force generated by the abductor digiti minimi complete fused tetanus would best be observed by: O Increasing the voltage used to stimulate the ulnar nerve Increasing the interval between stimuli delivered to the ulnar nerve Increasing the frequency with which the ulnar nerve was stimulated Increasing the resting length of the muscle before stimuli was delivered
- You are trying to jump from a crouched position (knee fully flexed), 1) list all of the muscles at the knee and hip that would move you from this position to in the air. 2) using the principle of active insufficiency please also outline the timing of the muscle force for the knee and the hip (i.e. what muscles provide the most force early in the movement, when the knee and hip are both more flexed, and what muscles provide the most force later in the movement, when the hip and knee are both more extended)A patient is completing a knee extension exercise. The patellar tendon inserts on the tibia 2.92 cm away from the knee joint axis of rotation. The foot is 40.38 cm away from the knee joint axis of rotation. What is the foots arc length through the exercise if the patellar tendon insertion moves through an arc length of 7.80 cm? Report you answer in meters.Maximal muscle force changes continuously throughout the elbow flexion according to the joint angle. True False
