11 Questions
During which phase of running are the quadriceps active for a longer period of time compared to walking?
Absorption phase
What type of work do the quadriceps provide during running?
Negative work
What is the function of the rectus femoris during running?
Controls knee flexion
What is the role of the hamstrings during the propulsion phase of running?
Hip extension
When does the first activity burst of the quadriceps occur during running?
At the start of absorption phase
What is the function of the hamstrings during the absorption phase of running?
Knee flexion
What is the most active phase for the quadriceps during running?
Absorption phase
What is the function of the rectus femoris during running?
Controls knee extension
What is the role of the hamstrings during the center of mass movement in running?
Contraction
During which phase does the second activity burst of the quadriceps begin?
Propulsion phase
What is the function of the hamstrings during knee stabilization in running?
Knee flexion
Study Notes
- Quadriceps are active for longer during running than walking.
- Quadriceps function from the last 20% of swing phase until the end of absorption phase during running.
- Quadriceps provide more negative work than positive work during running.
- Rectus femoris controls body's center of mass and knee flexion during running.
- Hamstrings work as hip extensor during propulsion phase and assist quadriceps in knee stabilization during absorption phase.
- Hamstrings co-contract with quadriceps as the center of mass moves forward.
- Quadriceps peaks twice during running gait.
- First activity burst occurs eccentrically at the start of the absorption phase.
- Second activity burst begins at the end of propulsion after toe-off.
- Quadriceps is most active during the first half of stance.
Test your knowledge on the complex role of quadriceps and hamstrings during running with this quiz! From controlling body movement to providing negative work, these muscles play a crucial part in the running gait. See how much you know about their activity peaks, co-contraction, and more. With keywords like quadriceps, hamstrings, running gait, and muscle function, this quiz is perfect for anyone interested in sports science or running mechanics.
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