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Running tips: one foot in front of the other. Biomechanical Gait and Running analysis Kurt Gengenbacher, PT, DPT, CSCS. History. Patient presents for one time treat/running evaluation (End of August 2010) Drove 3 hours for this one time visit Chief Complaint – Right lateral knee pain
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Running tips: one foot in front of the other Biomechanical Gait and Running analysis Kurt Gengenbacher, PT, DPT, CSCS
History • Patient presents for one time treat/running evaluation (End of August 2010) • Drove 3 hours for this one time visit • Chief Complaint – Right lateral knee pain • Similar symptoms in Left knee May 2009
Question #1: Which gait abnormality is associated with a self-protective mechanism related to injury in the LE? • Ataxic • Trendelenburg • Antalgic • Steppage
Past medical history • 1999/2000 MCL tear Left knee while skiing • non-operative management with PT (resolved) • 2001 – onset of Right hip pain with distances > 10 miles • Sx’s in PSIS, lumbosacral region, hip, but not past gluteal line • Cessation of running due to pain • August 2008 – same Right hip pain returned with training for half marathon • PT treatment for posterior capsular tightness • Resolution by end of the year, ran Philly half marathon without sx’s • January 2009 – occasional hip pain when training for full marathon • Onset at 15-20 miles • Ran the NJ marathon in May 2009 • May 2009 – treated for chronic LBP, and independent management of Left lateral knee pain • LBP managed with core exercises • Knee pain resolved with ice, rest, and decreased mileage for ~3 weeks
Further Information About Current Injury • Onset – October of 2009 during a 20 mile run • Running necessary mileage for marathon training, but with pain during any runs > than 10 miles • With independent fibular manipulation he is able to complete work outs without symptoms • Previous PT for Right knee (October-December 2009) – focused on reducing ITB restrictions and hypomobility in proximal tib-fib joint with symptom resolution and return to “easy runs” • Orthotics used from October 2008 – March 2010 • Pt noted no change in symptoms when he stopped using orthotics
Other Subjective Information • No limitations at work/home • No diagnostics • Current Medications – Prednisone and Lipitor • Goals • Run in Chicago or Philly marathon to qualify for Boston • Improve stride economy and prevent injury
Question #2: To avoid/assess for side effects related to long term prednisone use, pt’s should be instructed to do all the following, except: • Have a regular blood test • Immediately stop use if taken for 1 month or more • Get DEXA-scan occasionally • All of the above
Running Gait AnalysisWhat aspects of running gait do you want to look at during your observation?
ROM • Hip RL • IR 33° 33° • ER 44 ° 52 ° • ABD 26 ° 27 ° • EXT 15 ° 12 ° • Knee • Flex 147 ° 144 ° • Ext lack 2° hyper 3 ° • (right passive hyper 2°) • Ankle dorsiflex 5 ° 11 °
ROM • Hip RL • IR 33° 33° • ER 44 ° 52 ° • ABD 26 ° 27 ° • EXT 15 ° 12 ° • Knee • Flex 147 ° 144 ° • Ext lack 2 ° hyper 3 ° • (right passive hyper 2°) • Ankle dorsiflex5 °11 °
Strength (with HHD) RLStrength Index • Hip IR 19.4# 15.3# 127% • Hip ER 24.0# 21.0# 114% • Hip ABD 21.9# 22.0# 99% • Hip ext 10.0# 15.0# 67%
Strength (with HHD) RLStrength Index • Hip IR 19.4# 15.3# 127% • Hip ER 24.0# 21.0# 114% • Hip ABD 21.9# 22.0# 99% • Hip ext 10.0# 15.0# 67%
Joint Mobility & Palpation • Proximal and Distal Tib-fib: • Right hypomobile anterior and posterior • Left normal • Patella • Right hypomobile superior, inferior, and medial • Left normal • Talocrural • Right hypomobile posterior • Leftnormal • Palpation: (+) TTP over distal ITB and fibular head
Anthropometric & Flexibility Measures • Anthropometric Measures • Leg Length • R: 90 cm, L 90 cm • Q angle • R: 10, L 3 • Flexibility • Prone Quad (heel to buttock) • 20 cm B • HS (90/90) • R lack 44, L lack 42 • Ober’s (from table) • R 15 cm, L 14 cm
Observation • Standing posture • Left calcaneal eversion and toeing out • Right neutral calcaneal alignment • Single limb squat • Left slight pronation, genu valgum at end range • Right moderate pronation, genu valgum throughout range
Gait Analysis • Walking, barefoot • Left toe out and excessive pronation through heel strike into mid stance • Right slight supination at heel strike and maintained through stance • Too many toes sign positive bilateral • L 5 toes • R 4 toes
Question #3: What muscle is likely weak in a patient with positive too many toes sign? • Flexor hallucislongus • Peroneus longus • Anterior tibialis • Posterior tibialis
Question #4: During the Initial Contact phase of the gait cycle the: • Pelvis is rotated back, the hip is flexed, the knee is flexed, and the ankle is plantar flexed • Pelvis is rotated forward, the hip is extended, the knee is fully extended and the ankle is dorsiflexed • Pelvis is rotated forward, the hip is flexed, the knee is fully extended and the ankle is in neutral • Pelvis is rotated back, the hip is flexed, the knee is fully extended and the ankle is dorsiflexed
Question #5: During running gait, the subtalar joint everts ~10 degrees from footstrike to midstance. The primary muscle action occurring is: • Eccentric peroneus longus • Eccentric posterior tibialis • Concentric peroneus longus • Concentric posterior tibialis
Assessment • Pt has decreased R knee ext and dorsiflex ROM which are contributing to alterations in his gait with running, leading to pt’s c/o lateral knee pain • Pt is unable to achieve TKE on the right at landing which causes a functional leg length deficit and forefoot strike • Pt’stalocrural and patellofemoral joint mobility are decreased and may need treatment (joint mobilization) if stretching does not provide significant ROM gains • Ptneeds neuromuscular re-education during running to control femoral position with activity (genu valgum in stance and compensations in running); This dysfunction is also contributing to his increased lateral loading on the right
How/why will your treatment plan be different for this patient versus a typical patient?
Performing independent HEP: ADVICE! • Prioritize your information • Pt’susually have poor compliance with HEP, so sell the must haves • Work stretching program into running schedule • Stretch before and after run • Patellar mobilizations • After stretches • Sitting at a red light • Before you get up to get something out of the fridge • Hip strengthening • During commercial break • Before bed • On off day from running do them twice
HEP: ROM • Need to work on stretching to increase knee and ankle ROM • Self patella mobilizations to also improve knee ROM
HEP: Neuromuscular control /Running Re-training • Focus on foot and knee position with landing • Decrease forefoot abd and genu valgum • Concentrate on firing glut at landing to help control foot and knee position • Need visual cueing early (mirror and treadmill) • Gait retraining protocol: Gradual change in form/technique • Week 1 – all done with visual feedback • Start with 15 min and end at 24 min • Week 2 – gradually take away visual feedback • Start with 27 min total and 21 min with feedback • End with 30 min total and 3 min with feedback