Biomechanics And Kinesiology - Biomechanics Of Skeletal Muscle

Question 1

Total force is determined by

Answer 1

• length-tension relationship
• load-velocity relationship
• skeletal muscle architecture

Question 2

Physiological Cross Sectional Area (PCSA)

Answer 2

• is the area of slice that passes through all the fibres in a muscle

Question 3

Joint moment arm

Answer 3

• perpendicular distance between the muscle and the point of rotation

Question 4

Rotary torque

Answer 4

• product of linear force and the moment arm or mechanical advantage of the muscle about the joint’s centre of rotation

Question 5

Recruitment

Answer 5

• the process whereby individual motor units are progressively activated

Question 6

Rate coding

Answer 6

• the process whereby a particular motor neuron is driven to higher rates of sequential activation