Prevention and Care of Athletic Injuries: Strains, Sprains, and Skin Trauma

Vocabulary flashcards covering inflammation indicators, wound types, ligament sprains, muscle strains, recovery timelines, and joint pathology.

Rubor, Dolor, Calor, and Tumor

The classic cardinal signs of inflammation and injury: redness, pain, heat, and swelling of the joint.

Redness (Circulatory Response)

A normal physiological response to injury indicating an increase in local blood circulation to help heal the area.

Red Streaks

An abnormal symptom radiating from a wound or scratch indicating an infection (referred to in text as blood poisoning) requiring prompt medical treatment.

Swelling

A bodily response that serves to temporarily stabilize an injured joint while initial healing begins.

Cartilage

Connective tissue located on the ends of bones that allows for frictionless movement between articulating bones.

Arthritis

A condition characterized by partial or full bone-on-bone contact resulting from the wearing down of articular cartilage.

Bone Bruising

An injury occurring when smaller blood vessels inside the bone suffer trauma and leak blood, typically requiring $4$ to $8\text{ weeks}$ of recovery time.

Depolarization (Muscle Contraction)

The neuromuscular electrical change initiated when calcium is released from the sarcoplasmic reticulum down through the transverse tubules.

Muscle Cramp

An involuntary contraction often caused by unconditioned fatigue or an imbalance in electrolytes, primarily sodium and potassium.

Puncture Wound

A deep penetrating skin injury that carries an elevated risk of infection by creating a large surface area for bacteria or viruses despite minimal external bleeding.

Thrombosis

The formation of a blood clot supported by connective webbing to stop bleeding at an injury site.

Blister

A closed, intact friction injury where fluid collects beneath the skin surface.

Rip

A skin injury resulting when frictional forces pull apart the skin or an existing blister, leaving an open, exposed wound.

Abrasion

A superficial scrape injury where top layers of skin are dislodged over a wide surface area, common when bracing large joints during falls.

Sprain

An injury to a joint and its ligaments resulting from being stretched beyond their safe anatomical range of motion.

Strain

An injury localized to the belly of a muscle or the musculotendinous junction where muscle and tendon connect to bone.

Inversion

Inward turning of the foot, which represents the most frequent mechanism of ankle sprains due to the lateral aspect having less ligamentous stability than the medial side.

Ligament Laxity

The abnormal lengthening and elasticity acquired by ligaments following repeated sprain and healing cycles, predisposing joints to recurrent injury.

Acute Injury

A sudden, immediate traumatic injury occurring at a distinct point in time.

Tendinosis

A long-term, chronic degenerative condition affecting a tendon resulting from repetitive stress or unresolved severe strains.

Neuromuscular Rehabilitation

A physical therapy intervention designed to re-educate and correct an individual's dysfunctional movement patterns, such as walking gait.

Mild Muscle Strain

A low-grade musculotendinous stretch or microtear that typically resolves within $1$ to $3\text{ days}$.

Moderate Muscle Strain

An intermediate muscle or tendon tear that requires approximately $1$ to $2\text{ weeks}$ to heal.

Severe Muscle Strain

A major disruption of muscle fibers or tendons requiring multiple months up to years of recovery and risking tendon rupture.