Human Tendons Flashcards
1
Q
Toe region
A
-stretch to 2% strain=nonlinear response
-taking up the slack
2
Q
elastic (linear) region
A
-strain is <4% tendon returns to original length
3
Q
plastic region
A
strain to 8-10% microscopic failure begins
4
Q
viscoelastic material
A
-behavior dependent on rate of force is applied
-tendons a low strain absorb mechanical energy but are less effective in sustaining high loads
— more deformable
-tendons at high strain become stiffer and more effective at transmitting large muscle forces to the bone at high strain
— less deformable
5
Q
creep
A
-low load over long period of time
6
Q
stress relaxation
A
-time progresses, less stress/force to create change
-not good– tissue failure
7
Q
hysteresis
A
–less energy to bring back to 0 degrees after stretch
-dynamic flexibility
