Dehydration etiology
2% of body weight lost in fluid
Exertional heat exhaustion etiology
result of inadequate fluid replacement - can’t sustain cardiac output
Exertional heat stroke etiology
breakdown of thermoregulatory mechanism
Pes Planus foot (flatfoot) etiology
assoc with excessive pronation, weak supportive structuures, and consistend high impact activity
Pes cavus (high arch) etiology
higher arch than normal - excessive supination. Accentuated high medial longitudinal arch, poor shock absorption
Plantar fasciitis etiology
simply means “pain in transverse arch and heel”. Increased tension and stress on fascia (during toe-off or running phase). May be caused by change from rigid footwear to flexible. Common with excessive pronation
Metatarsal Stress Fracture etiology
2nd MT most common (march fracture). can be caused by change in running pattern - increasing mileage, running hills, or running on harder surface
Great toe hyperextension (turf toe) etiology
hyperextension injury resutling in sprain of 1st MTP joint. can be acute or chronic
Apophysitis of calcaneus (sever’s disease) etiology
traction injury at apophysis of calcanues where achille’s attaches
Grade 3 Inversion Ankle Sprain etiology
extremely disabling, caused by significant force, may result in talocrural subluxation, causes damage to anterior talofibular, posterior talofibular, calcaneofibular ligament
Eversion Ankle Sprain etiology
damage to deltoid ligament and possible fracture to fibula or tibia
High Ankle etiology
injury to distal tibiofibular joint (anterior / posterior tibiofibular ligament). Method of injury - forced rotation often in dorsiflexion
Achilles Tendinopathy etiology
inflammatory condition involving tendon and sheath - causes fibrosis and scarring that can restrict tendon motion in sheath. tendon is overloaded due to consistent stress beyond internal resistance (yield point). Presents with graduel onsent and worsens with continued use
Achilles Tendon Rupture etiology
occurs with sudden stop and go, forceful dorsiflexion with knee moving into full extension. May have no precipating factors
Tibial Stress Syndrome (Shin-Splints) etiology
pain in anterior portion of shin, caused by repetitive microtrauma, weak muscles, static foot structure, improper footwear, training errors, and biomechanics are greatest contributors
Stress Fracture of Tibia etiology
common overuse condition, often in those with structural and biomechanical insufficiencies. Can happen with changes in environment
Medial Collateral Ligament Sprain Grade I etiology
severe blow from lateral side (valgus force)
Medial Collateral Ligament Sprain Grade II etiology
severe blow from lateral side (valgus force)
Medial Collateral Ligament Sprain Grade III etiology
severe blow from lateral side (valgus force)
Lateral Collateral Ligament Sprain etiology
varus force from medial side, injury may also occur to cruciate ligs, iliotibial band, and menisucs
Anterior Cruciate Ligament Sprain etiology
“Non Con: athele decelerating from jump, ground contact creates axial force w knee near extension or valgus, produces anterior shear and internal rotation on tibia on femur Contact: limb specific external contact forces knee into valgus and tibia internal rotation w anterior shear. Indirect external contact dispalces athlete in a way that disrupts lower extremity mechanics females have more intrinsic sprains”
Posterior Cruciate Ligament Sprain etiology
at risk during 90 degrees of flexion, usually caused by falling on bent knee. Also caused dahsboard injury, when the flexed knee of a car driver hits the dashboard
Meniscal Lesions etiology
axial load, roation and valgus force. Can also occur w flexed knee with load or force through tibia into femur. Tear can occur in all directions and areas of meniscus
Osgood-Schaltter Disease etiology
Apophysists occuring at tibial tubercule - develops bondy callus which enlarges tubercule. Symptoms resolve with aging