Answer :
The peak plantarflexor moments are generally higher in young adults compared to older adults due to factors like muscle strength and flexibility. The answer is b. 145 Nm and 250 Nm.
Here's the breakdown:
- Younger adults: Their plantarflexor muscles are typically stronger and more flexible, leading to higher peak plantarflexor moments (around 250 Nm). This translates to better propulsion during activities like walking and running.
- Older adults: As we age, muscle strength and flexibility tend to decline. This can lead to decreased peak plantarflexor moments (around 145 Nm), potentially impacting gait and balance.
Therefore, the answer is b. 250 Nm and 145 Nm.
Peak plantarflexor moments refer to the maximum force exerted by the muscles responsible for plantarflexion (pointing the foot downward) around the ankle joint. This measurement is often used in biomechanics and sports science to assess muscle strength and function, particularly in activities such as walking, running, and jumping. It is typically measured in units of Newton-meters (Nm) and provides valuable information about the force production capacity of the plantarflexor muscles during different movements and tasks.
