basics of biomechanics dusan radovanovic, zurich duesseldorf 14th nov. 2006
TRANSCRIPT
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Basics of Biomechanics
Dusan Radovanovic, Zurich
Duesseldorf 14th Nov. 2006
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History
Summer 1997 until April 1998 Gaitway Kistler System under test in own practice
Study of patients with knee disorders Publication
„Gait- and motion analysis in physiotherapy. Possibilities of therapy for knee disorders for leisure athletes by altering the running technique".
Scientific Award of Association for Sports Medicine Switzerland
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Practice
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Practice
Treadmill Gaitway used since May 1998
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Used Measurement System Gaitway
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Action – Reaction„Center of Pressure“
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Registration of Patients
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Acceptance
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Vertical Bottom-Reaction-Force-Curve
20-30% des KG
110-120% des KG
80% des KG
130% des KG
Recording min. 10‘‘4.0km/h
links
rechts
walking in normal shoes
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Ideal Vertical Bottom-Reaction-Force-Curve
walking 4.03 km/h cadence 112 / min. 10“ 9x left 8x right
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Horizontal (frontal) Bottom-Reaction-Force-Curve
First peak
Standing phase
rightleft
Heel strike
Push-off-phase
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Vertical Bottom-Reaction-Force-Curve
running, barefoot 8 km/h
2.5 x KG
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Practical Examples
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Arthritis in the upper ankle (left) & Femoropatellares syndrome
(right)4 weeks later
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Calcaneal Spur
walking
8 weeks later
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Calcaneal Spur
running
10 weeks later
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Tendovaginitis Tibialis posterior, Flexor hallucis longus and Flexor digitorum
longus
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Jumpers knee left
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8-10
0
10
20
30
40
50
60
70
80
90
100
Relative Time (s)
Kil
og
ram
s (k
gf)
Force
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8-100
102030405060708090
100
Relative Time (s)
Kilo
gram
s (k
gf)
Force
21 days later
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“ Runners knee “
0 0.04 0.08 0.12 0.16 0.20 0.24-20
0
20
40
60
80
100
120
140
160
Relative Time (s)
Kilo
gra
ms
(kg
f)
Force
running shoes
barefoot
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VKB plastic right
2 years after operation
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Several surgeries left knee
0 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22-40
0
40
80
120
160
200
240
280
Relative Time (s)
Kil
og
ram
s (k
gf)
Force
8 kmh
8 km/h
13 km/h
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Knee pains left > right after 10 min. running with heel run technique
Forefoot run technique
with running shoes barefoot
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Gonarthritis right
0 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.32-20
0
20
40
60
80
100
120
140
160
180
Relative Time (s)
Kilo
gra
ms
(kg
f)
Force
0 0.05 0.10 0.15 0.20 0.25 0.30-200
20406080
100120140160180
Relative Time (s)
Kil
og
ram
s (
kg
f)
Force
heel run technique forefoot run technique
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Patellae multiple fracture
heel run technique
forefoot run technique
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Total implant left knee
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8-100
102030405060708090
100
Relative Time (s)
Kilo
gram
s (k
gf)
Force
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VKB plastic3 weeks after surgery 6 weeks after surgery
8 weeks after surgery 12 weeks after surgery
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Running after 12 and 14 weeks
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Femoropatellares syndrome8 weeks later
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Gonarthritis3 months later
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VKB plastic, Tibia head synthesis, metal removed
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Coxarthritis bds
20 min. after specific exercises
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Femoroacetabulare impingement syndrome right
Status after arthroscopic surgery
After correction of walking technique
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Hip pain bds
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ISG blocking
6 weeks after specifictraining
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Blocked ISG on surgery side
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Adductore strain right; ISG blocking right
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Disk hernia L5 / S1
4 days later
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Tractus Iliotibialis syndrome
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Conclusion
The running machine with integrated force platforms is perfect for
Diagnostics Documentation of Results Trend Monitoring Control of Results Control Quality Assurance for Physiotherapy and Sports Medicine
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Thank you