Flashcards in Exam 1 Deck (121)
Roles and Responsibilities of Athletic Trainers
Injury/illness prevention and wellness protection
Clinical evaluation and diagnosis
Immediate and emergency care
Treatment and rehabilitation
Organizational and professional health and well-being.
NATA Code of Ethics
Members shall respect the rights, welfare and dignity of all.
Members shall comply with the laws and regulations governing the practice of athletic training.
Members shall maintain and promote high standards in their provision of services.
Members shall not engage in conduct that could be construed as a conflict of interest or that reflects negatively on the profession.
A physical injury or wound that is produced by and external or internal force.
An external force acting on tissues that causes internal reactions within the tissues.
The relative ability of a tissue to resist a particular load. The greater the stiffness, the greater the magnitude of load it can withstand.
The internal resistance of the tissues to an external load is called a stress.
Extent of deformation of tissue under loading.
Change in shape of a tissue.
A property that allows a tissue to return to normal following deformation.
The yield point is the elastic limit of a tissue.
Plastic is the deformation of tissue that exist after the load is removed. (permanent changes)
Deformation of tissue that occurs with application of a constant load over time.
Exceeding the ability to withstand stress and strain, causing tissue to break down.
Tissue Loading Types
Compression is produced by external loads applied toward one another on opposite surfaces in opposite directions.
(opposite of compression)
Tension is the force that pulls or stretches tissue. The structure elongates and tensile stress and strain results.
Shearing occurs when equal but not directly opposite loads are applied to opposing surfaces, forcing those surfaces to move in parallel directions relative to one another.
Bending can occur in one of the following ways:
1. When two forces pairs act at opposite ends of a structure (4-point)
2. When three forces cause bending
3. When an already bowed structure is axially loaded.
Torsion loads caused by twisting in opposite directions fro the opposite ends of a structure cause shear stress over the entire cross section of that structure.
(Chronic) Overtime, due to repetitive movements and poor biomechanics.
Musculotendinous Unit Injuries
The musculotendonuos unit consist of the muscle, the tendon, and the fascia that surrounds the muscle.
High incidence in athletic.
Types of Muscle
3. Striated (Skeletal)
A stretch, tear, or rip in the muscle or its tendon.
Pathologically, a strain is very similar to a contusion or sprain with capillary or blood vessel hemorrhage.
Time required for healing may be lengthy
Often involves large, force-producing muscles.
Treatment and recovery may take 6-8 Weeks depending on severity.
Return to play too soon could result in re-injury.
Muscle Strain Grade I
Grade I - some fibers have been stretched or actually torn resulting in tenderness and pain on active ROM, movement may be painful but full range is present
Muscle Strain Grade II
A number of fibers have been torn and active contraction is painful, usually a depression or divot is palpable, some swelling and discoloration result, but may not occur immediately. Usually patient hears a popping sound.
Muscle Strain Grade III
A complete rupture of muscle or musculotendinous junction. There is significant impairment to or perhaps total loss of movement. Initially there is a great deal of pain that diminishes due to nerve damage.
Painful and involuntary skeletal muscle contraction.
Occurs in well-developed individuals when muscle is in a shortened position.
A muscle contraction in response to pain.
Following injury, the muscles that surround the injured area contract to, in effect, splint that are, thus minimizing pain by limiting movement.