Joint Biomechanics Flashcards
What makes the shoulder so vulnerable?
number of bones, muscles, tendons, ligaments and bursae in one location
What muscles are the biggest stabilizers of the Scapula and the Humerus?
Rotator Cuff muscles and Pectorals
The knees primarily work in which plane?
Sagittal Plane
What is a Dislocation?
A complete displacement of joint surfaces
In order to reduce injuries, you should perform warm-up sets with what type of weight?
relatively light weight
What is the difference between a sprain and a strain?
Sprain: connects bone to bone, and is a trauma to ligaments
Strain: Connects ends of muscles that attach to bone, and is a trauma to muscles or tendons.
What does the valsalva maneuver do?
It increases abdominal pressure which, exerts compressive force on heart, elevate blood pressure to high levels, and can increase the risk of a blackout.
Should weight belts be used to lift maximally?
No, not until the abdominal muscles are strong enough to counteract the forces.
Impingement syndrome of the shoulder can cause?
tendinitis, inflammation, and degeneration of tissue
Prescriptions for the shoulders while working out:
- warm up with lighter weight
- keep shoulder joint muscles balanced
- Exercise at a controlled speed
The patella and surrounding tissue are most susceptible to forces in which type of training?
Resistance Training
What is overtraining and what does it do to the body?
It is excessive frequency, volume, or intensity of training that results in extreme fatigue, illness, or injury to the body.
What are the three phases of the healing process?
- Inflammatory Response Phase
- Fibroblastic-Repair Phase
- Maturation Remodeling Phase
Where do 85-90% of all intervertebral disk herniation’s occur at in the back?
Between the lowest two lumbar vertebrae
Muscles must exert a force that frequently exceeds ____ the weight lifted.
10 times
