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Questions and Answers
Which muscle maintains the same output and timing in both walking and running?
Which muscle maintains the same output and timing in both walking and running?
- Gluteus maximus (correct)
- Gluteus medius
- Adductor longus
- Hamstring muscles
What happens to muscle activity and timing as locomotion speed increases?
What happens to muscle activity and timing as locomotion speed increases?
- Muscle activity decreases and onset timing is delayed
- Muscle activity remains the same and onset timing is delayed
- Muscle activity increases and onset timing is sooner (correct)
- Muscle activity decreases and onset timing is sooner
Which muscle group propels the hip into flexion during the initial swing phase of running?
Which muscle group propels the hip into flexion during the initial swing phase of running?
- Hip adductors
- Hip flexors (correct)
- Gluteus maximus
- Gluteus medius
How does the gluteus maximus muscle behave in walking and running?
How does the gluteus maximus muscle behave in walking and running?
What is the primary function of the hamstrings during running?
What is the primary function of the hamstrings during running?
How does adductor muscle activity differ in running compared to walking?
How does adductor muscle activity differ in running compared to walking?
What happens to the gluteus medius muscle output amplitude as running speed increases?
What happens to the gluteus medius muscle output amplitude as running speed increases?
Which muscle's output amplitude increases with running speed?
Which muscle's output amplitude increases with running speed?
What is the primary function of the hip flexors during running?
What is the primary function of the hip flexors during running?
How does adductor muscle activity differ in running compared to walking?
How does adductor muscle activity differ in running compared to walking?
When are the hip adductors active during the running gait cycle?
When are the hip adductors active during the running gait cycle?
Which muscle group works eccentrically to stabilize the body during midstance and midswing in running?
Which muscle group works eccentrically to stabilize the body during midstance and midswing in running?
Which muscle maintains the same output and timing in both walking and running?
Which muscle maintains the same output and timing in both walking and running?
How does gluteus maximus output and timing compare between walking and running?
How does gluteus maximus output and timing compare between walking and running?
What type of muscle activity do the adductors perform during midstance and midswing in running?
What type of muscle activity do the adductors perform during midstance and midswing in running?
Which muscle group is active throughout the entire running gait cycle?
Which muscle group is active throughout the entire running gait cycle?
Which muscle's output amplitude increases with running speed?
Which muscle's output amplitude increases with running speed?
How does the onset timing of muscle activity compare between running and walking?
How does the onset timing of muscle activity compare between running and walking?
What is the primary difference in muscle activity between walking and running?
What is the primary difference in muscle activity between walking and running?
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Study Notes
- Changes occur in motion requirements and timing of activity as locomotion speed increases.
- Running requires eccentric muscle activity to absorb impact forces and generate power.
- Muscle activity is greater and onset timing is sooner in running compared to walking.
- Gluteus maximus maintains the same output and timing in both walking and running.
- Gluteus medius output amplitude increases with running speed.
- Hip flexors propel the hip into flexion during the initial swing phase.
- Adductor muscle activity is different in running compared to walking.
- Adductors work eccentrically to stabilize the body during midstance and midswing in running.
- Hip adductors are active throughout the entire running gait cycle.
- Hamstrings' primary function during running occurs at the hip.
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