What is the activity of the hip muscles during toe-off?
Anonymous Quiz
25%
Eccentric extensors
13%
Isometric abductors
16%
Eccentric adductors
46%
Concentric flexors
What is the main action of the dorsiflexors during acceleration (early swing)?
Anonymous Quiz
21%
Eccentric contraction
70%
Concentric contraction
7%
sometric contraction
2%
sometric contraction
Which muscles are active during deceleration to slow down the leg?
Anonymous Quiz
41%
Hamstrings eccentrically
25%
Quadriceps concentrically
16%
Hip flexors concentrically
18%
Dorsiflexors concentrically
During running, when is the gluteus maximus and medius active?
Anonymous Quiz
10%
Only during swing phase
20%
Mid-stance
63%
Beginning of stance and end of swing phase
6%
Toe-off only
What is the normal nerve conduction velocity (NCV) in upper limb peripheral nerves?
Anonymous Quiz
12%
65 m/s
53%
45 m/s
24%
55 m/s
12%
75 m/s
Which muscles are active during the swing phase to rotate the pelvis forward?
Anonymous Quiz
17%
Internal obliques and erector spinae
26%
Semispinalis, rotatores, multifidus, external oblique
35%
Quadratus lumborum and psoas major
22%
Gluteus medius and minimus
If the NCV is zero, what does it indicate?
Anonymous Quiz
18%
Muscle fatigue
27%
Nerve compression
9%
Muscle hypertrophy
45%
Complete nerve or spinal cord injury
During mid-swing, what is the initial activity of the knee muscles?
Anonymous Quiz
13%
Isometric
35%
Concentric quadriceps
48%
Eccentric quadriceps
5%
Eccentric quadriceps
In terminal stance, which muscle group acts concentrically at the ankle?
Anonymous Quiz
23%
Dorsiflexors
65%
Plantar flexors
6%
Peroneals
6%
Quadriceps
What is the primary function of the quadratus lumborum during gait?
Anonymous Quiz
16%
Forward pelvic tilt
21%
Pelvic rotation
50%
Lateral pelvic tilting
13%
Trunk extension
Which of the following statements about EMG is true?
Anonymous Quiz
3%
It measures heart activity
79%
It measures muscle electrical activity
9%
It detects only isometric contractions
9%
It is the same as EEG
Which muscles are responsible for controlling limb movement over the foot during mid-stance?
Anonymous Quiz
22%
Dorsiflexors concentrically
58%
Plantar flexors eccentrically
7%
Hamstrings isometrically
13%
Quadriceps eccentrically
What muscle contraction occurs at the hip during deceleration?
Anonymous Quiz
55%
Eccentric contraction of extensors
32%
Concentric contraction of extensors
9%
Isometric contraction of flexors
3%
No activity
What is the nerve conduction velocity (NCV) in lower limb peripheral nerves?
Anonymous Quiz
19%
65 m/s
47%
55 m/s
19%
50 m/s
14%
45 m/s
During swing, which group helps support the pelvis on the side of the swinging limb?
Anonymous Quiz
4%
Erector spinae
79%
Contralateral hip abductors, psoas major, and quadratus lumborum
6%
Hamstrings
10%
Iliopsoas only
👍1
What is the effect of nerve compression on NCV?
Anonymous Quiz
19%
Increases velocity
50%
Decreases velocity
21%
Changes contraction type
10%
No change
👍2
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