Biomech

7/23/99

Shoe Types

• Shoes are only to protect from cutting and keep warm in colder climates
• Shoes developed today w/shoes that are supposed to help w/performance really don't
• Soles of tennis shoes last 6 months or 500 miles
• Pronation—over pronation of the ankle
• Abnormal swings to pelvis has pain at thoracolumbar pain
• Normal loading puts extra strain on this level
• 2^nd largest area of osteoarthritis
• Gait
• Look at how little muscles fire during the cycle
• Look where they are firing
• Look at the actions—stretched or contracting when firing
• Quads—extends knee when fired
• Gluteus maximus
• Hamstrings
• Posterior lower leg—does it job
• Anterior tibial muscle
• Controlled fall