Muscle Mechanics Flashcards
The knee joint is made up of the end of the ____ and the ____.
- Femur
2. Tibia
The knee is stabilized on the anterior side by the _____, and on the posterior side by the ______ from above and the _______ from below.
- Quadriceps
- Hamstrings
- Gastrocnemius
The knee is stabilized by the _____ and ____ on the medial side, and by the _____ on the lateral side.
- Sartorius
- Gracilis
- Tensor fasciae latae (FTL)
What are two-joint muscles?
Muscles that cross two joints rather than just one, such as the hamstrings, which cross both the hip and the knee.
What is chondromalacia?
The degeneration of cartilage
True or False
People with shin splints usually have significantly greater plantar flexor (extensor) strength than dorsiflexor (flexor) strength.
True
When combined with the Achilles’ tendon, the soleus and the gastrocnemius can exert a force over ____ pounds in ankle extension.
900
What is hyperextension?
Extension of a limb or part beyond the normal limit.
To produce shortening of the rectus abdominus in the lower fibers of the abdomen, it is necessary to do exercises such as the ____ or ____.
- Reverse sit-up (reverse crunch)
2. Hanging leg raises
What are antigravity muscles?
Hypothetical force by which a body of positive mass would repel a body of negative mass. Example is the extensor muscles of the spine
What is impingement?
Shoulder pain caused by connective tissue (a tendon) rubbing on a shoulder blade
True or False
The most accurate way to determine the key actions and muscles involved in a strength exercise is to biomechanically and kinesiologically analyze the movements
True
True or False
The muscles mass of the quadriceps is much greater than that of the hamstrings.
True
The ankle joint is made up of what 2 bones?
- Tibia
2. Tali’s
What is the major ankle extensor muscle of the shin?
Gastrocnemius
