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Biomechanical Assessment and Treatment of Running Injuries Created by Francine Eastwood BScPT, ART Provider ®, Founder of PSI Runner’s Clinic, Senior Clinical Leader PSI Sports Medicine Centre, 1000 Palladium Dr., Kanata, ON. www.psiottawa.com Picture of elite African distance runners
Injuries and Biomechanical Flaws my observations…. Injury Potential Stride Flaw Correct form PFPS ITBS IR Femur during contact and support phase Pelvic drop (opposite) “ keep knees apart” cadence/MFS strength glute med/ tone adductors ADD Femur during contact/ feet cross over midline/ whip “ Run with line between feet” “ Drive from hip not foot” – as if running through tall grass “ good arm carriage”
Injuries and Biomechanical Flaws Injury Potential Stride Flaw Correct form/strength vs. length Plantar Fasciitis/ AT Amount/duration of pronation, lacking dflx ( foot ER) “ push with big toe” cadence, heel strike +/- dflx ROM, ecc calf Shin Splints Stress # As above + Loud/slaps (fatigue) Heavy heel strike, lands far in front plumb line (inc GRF) “ Soft strike” MF strike, land with foot underneath body LEAN + cadence Minimalist shoes if anterior HS strain Overstride, land with foot far in front, pull type gait, slow cadence, overleans, stiff L/S Upright + cadence Avoid trunk rotation MF strike, look at L/S
Goal: investigate the relationships between running mechanics, top running speed and economy in young endurance athletes
Method: 25 endurance athletes (19.8 +/- yrs)
TEST 1: 8 x 30m with increasing speeds (measured ground reaction forces and stride characteristics)
TEST 2: incremental 5-6 x 1000m (measured running economy at the speed of 3.89m/s and Max O2 uptake)
*(~4.29min/km) or (6.86min/mile) or (8.4miles/hour)
Ground Contact time was the only factor which correlated significantly with both running economy and max running speed
Conclusion: Therefore, short contact times required in economical and high speed running suggests that fast force production is important for both economical running and high top running speed in distance runners.
Purpose: compare the biomechanical changes during 3 different foot strike patterns Methods : 20 runners instructed in mid foot and Pose running. Clinical gait analysis and biomechanical variables compared. Results: Pose stride lengths vertical displacement vertical impact force eccentric work in knee eccentric work at the ankle
Acute vs. Chronic PFS (load) Neuro-proprioceptive taping; myofascial release Of lateral structures Glute strengthening; Eccentric loading – step down Change running form ITBS (Repetition) Neuro-proprioceptive taping; myofascial release of lateral structures; AP fat pad; foam roller; Glute strengthening; single leg squats; hip hikes; airplane ex. Interval running AT (load) Unload (heel lift; no hills/speed); protect (friction) Calf stretching if needed AP; US; ART Eccentric loading; Return to run (run often/daily) MTSS (load) Unload (no hills/speed) Myofascial release; US; AP; Taping Eccentric loading; IMF strengthening; calf stretching as needed