Injury Types

What is a muscle strain?

• A muscle strain is a condition caused by excessive protein intake.
• A muscle strain is a result of dehydration.
• A muscle strain is a type of bone fracture.
• A muscle strain is a stretch or tear of muscle fibers.

Match the characteristics of a muscle strain to each grade

Groups:

(a) Grade 1

,

(b) Grade 2

,

(c) Grade 3

• fibers partially torn

• limited pain

• bleeding (bruising)

• significant impairment, pain and swelling

• complete rupture

• no decreased strength

• active contraction extremely painful

• divot where the muscle is torn

What is muscle soreness caused by?

• Lack of hydration
• Inadequate warm-up
• Overstretching of muscles
• cell/fiber death within the muscle

What builds up in the muscle when there is soreness?

• calcium
• glucose
• lactic acid
• carbon dioxide

What does lactic acid stimulate in the muscles?

• Glucose
• Calcium
• Oxygen
• pain receptors

What is a tendon?

• A tendon is a type of muscle.
• A tendon is a type of nerve.
• A tendon is a fibrous connective tissue that connects muscle to bone.
• A tendon is a type of bone.

What is the cause of tendonitis?

• Poor nutrition
• Lack of exercise
• Genetic predisposition
• Overuse or repetitive movements

What is tendonitis?

• Inflammation of a tendon
• Inflammation of a joint
• Inflammation of a ligament
• Inflammation of a muscle

What occurs in a grade 3 ligament sprain?

• The ligament is slightly damaged.
• The ligament is completely torn or ruptured.
• The ligament is stretched but not torn.
• The ligament is partially torn.

What kind of force creates a ligament sprain?

• Force that compresses a ligament
• Force that strengthens a ligament
• Force that contracts a ligament
• Force that stretches or tears a ligament