logging in or signing up Gait Powerpoint yankeeswin Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 1043 Category: Education License: All Rights Reserved Like it (3) Dislike it (0) Added: July 18, 2010 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Introduction to Observational Gait : Introduction to Observational Gait Biomechanics : Gait : Biomechanics : Gait Stance Phase Gait 60% of cycle Initial contact Loading response Midstance Terminal Stance Preswing Swing Phase Gait 40% of Cycle Early swing Mid-Swing Terminal Swing Gait In Lower Extremity : Gait In Lower Extremity Grouped by Phase Initial Contact : Initial Contact Initial Contact : Initial Contact Ankle jt. is in neutral STJ is slightly supinated Anterior Tibialis and EDL are on eccentrically Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Contact The knee is positioned in neutral The quadriceps contract to prepare for loading response The hamstrings contract to counteract a brief extension torque. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial contact Hip stays in the 25 degrees of flexion obtained in terminal swing. Hamstrings contract in reaction to hip flexion torque. Loading Response : Loading Response Loading Response : Loading Response Ankle moves rapidly into 10 degrees PF Pretibial mm action Tibia is pulled anterior Knee flexes STJ-Calcaneus everts 4-6 degrees (closed chain pronation) ?mm controls this Midtarsals? Loading Response : Loading Response Closed Chain Pronation: Loose packed position at STJ and in midtarsal region-allows for shock absorption Calcaneal eversion Talus horizontally adducts Tibia Internally Rotates Knee Flexes Femur internally rotates Knee Biomechanics: Gait : Knee Biomechanics: Gait Loading Response The knee flexes to 15 degrees Quadriceps contract eccentrically. Hip Biomechanics: Gait : Hip Biomechanics: Gait Loading Response Hip remains in 25 degrees of flexion. Glut max, hamstrings, and adductors contract Midstance : Midstance Midstance : Midstance Ankle DFs to 5-10 degrees Gastroc & Soleus working eccentrically Knee extends near neutral (Gastroc stabilizes the knee) Knee Biomechanics:Gait : Knee Biomechanics:Gait Midstance The knee extends near neutral. Quadriceps are on briefly, then the knee is stabilized by the gastrocnemius. Hip Biomechanics: Gait : Hip Biomechanics: Gait Midstance Hip extends to neutral. No muscle activity in the sagittal plane. The pelvis is stabilized in the frontal plane by the hip abductor group. Terminal Stance : Terminal Stance Terminal Stance : Terminal Stance Ankle DFs to 10 degrees 1st MTP extends to 30 Calf mms still on STJ-supinating Midtarsals? 1st Ray control Knee in full extension Terminal Stance : Terminal Stance Closed chain supination: subtalar joint and midtarsals go into a closed pack position. Makes a rigid lever for push off. Calcaneal inversion Talar horizontal abduction Tibial external rotation Knee extension Femur external rotation Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Stance The knee extends to neutral. No muslces are active at the knee. Knee still stabilized by the gastrocs. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Stance Hip extends 20 degrees. TFL fires to restrain hyperextension of the hip PreSwing : PreSwing PreSwing : PreSwing Knee rapidly flexing 1st MTP 30-70 DF Ankle to 20 degrees PF Lift off! Knee Biomechanics: Gait : Knee Biomechanics: Gait PreSwing The knee rapidly flexes to 40 degrees. The motion occurs without hip flexor activity. Hip Biomechanics: Gait : Hip Biomechanics: Gait PreSwing Thigh falls forward. This motion is aided by adductor longus. Initial Swing : Initial Swing Initial Swing : Initial Swing Ankle is dorsiflexing: Concentric contraction of Anterior tibialis, EHL, EDL. Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Swing The knee continues flexing to 60 degrees. Biceps femoris, sartorius, and gracilis are active. Foot clears the floor and the thigh advances. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial Swing 15 degrees of hip flexion is achieved, Iliacus, gracilis, sartorius, and adductor longus are active concentrically. MidSwing : MidSwing Midswing : Midswing Ankle is in neutral position, dorsiflexors are still on (isometrically or eccentrically at this point). Knee Biomechanics: Gait : Knee Biomechanics: Gait MidSwing The knee rapidly extends to 25 degrees. Knee extension motion is created by momentum There is some firng of the biceps femoris to control the rate of extension. Hip Biomechanics: Gait : Hip Biomechanics: Gait MidSwing: 25 degrees of hip flexion is achieved. The iliacus, gracilis, and sartorius, stop firing in late midswing. Terminal Swing : Terminal Swing Terminal Swing : Terminal Swing Ankle is still in neutral Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Swing The knee extends to neutral The quadriceps contract to ensure full extension. The hamstrings are active to decelerate the leg. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Swing Hip stays in 25 degrees flexion Hamstrings decelerate the limb Gait In Lower Extremity : Gait In Lower Extremity Grouped by Joint Initial Contact : Initial Contact Ankle jt. is in neutral STJ is slightly supinated Anterior Tibialis and EDL are on eccentrically Loading Response : Loading Response Ankle moves rapidly into 10 degrees PF Pretibial mm action Tibia is pulled anterior Knee flexes STJ-Calcaneus everts 4-6 degrees (closed chain pronation) ?mm controls this Midtarsals? Loading Response : Loading Response Closed Chain Pronation: Loose packed position at STJ and in midtarsal region-allows for shock absorption Calcaneal eversion Talus horizontally adducts Tibia Internally Rotates Knee Flexes Femur internally rotates Midstance : Midstance Ankle DFs to 5-10 degrees Gastroc & Soleus working eccentrically Knee extends near neutral (Gastroc stabilizes the knee) Terminal Stance : Terminal Stance Ankle DFs to 10 degrees 1st MTP extends to 30 Calf mms still on STJ-supinating Midtarsals? 1st Ray control Knee in full extension Terminal Stance : Terminal Stance Closed chain supination: subtalar joint and midtarsals go into a closed pack position. Makes a rigid lever for push off. Calcaneal inversion Talar horizontal abduction Tibial external rotation Knee extension Femur external rotation PreSwing : PreSwing Knee rapidly flexing 1st MTP 30-70 DF Ankle to 20 degrees PF Lift off! Initial Swing : Initial Swing Ankle is dorsiflexing: Concentric contraction of Anterior tibialis, EHL, EDL. Midswing : Midswing Ankle is in neutral position, dorsiflexors are still on (isometrically or eccentrically at this point). Terminal Swing : Terminal Swing Ankle is still in neutral Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Contact The knee is positioned in neutral The quadriceps contract to prepare for loading response The hamstrings contract to counteract a brief extension torque. Knee Biomechanics: Gait : Knee Biomechanics: Gait Loading Response The knee flexes to 15 degrees Quadriceps contract eccentrically. Knee Biomechanics:Gait : Knee Biomechanics:Gait Midstance The knee extends near neutral. Quadriceps are on briefly, then the knee is stabilized by the gastrocnemius. Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Stance The knee extends to neutral. No muslces are active at the knee. Knee still stabilized by the gastrocs. Knee Biomechanics: Gait : Knee Biomechanics: Gait PreSwing The knee rapidly flexes to 40 degrees. The motion occurs without hip flexor activity. Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Swing The knee continues flexing to 60 degrees. Biceps femoris, sartorius, and gracilis are active. Foot clears the floor and the thigh advances. Knee Biomechanics: Gait : Knee Biomechanics: Gait MidSwing The knee rapidly extends to 25 degrees. Knee extension motion is created by momentum There is some firng of the biceps femoris to control the rate of extension. Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Swing The knee extends to neutral The quadriceps contract to ensure full extension. The hamstrings are active to decelerate the leg. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial contact Hip stays in the 25 degrees of flexion obtained in terminal swing. Hamstrings contract in reaction to hip flexion torque. Hip Biomechanics: Gait : Hip Biomechanics: Gait Loading Response Hip remains in 25 degrees of flexion. Glut max, hamstrings, and adductors contract Hip Biomechanics: Gait : Hip Biomechanics: Gait Midstance Hip extends to neutral. No muscle activity in the sagittal plane. The pelvis is stabilized in the frontal plane by the hip abductor group. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Stance Hip extends 20 degrees. TFL fires to restrain hyperextension of the hip Hip Biomechanics: Gait : Hip Biomechanics: Gait PreSwing Thigh falls forward. This motion is aided by adductor longus. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial Swing 15 degrees of hip flexion is achieved, Iliacus, gracilis, sartorius, and adductor longus are active concentrically. Hip Biomechanics: Gait : Hip Biomechanics: Gait MidSwing: 25 degrees of hip flexion is achieved. The iliacus, gracilis, and sartorius, stop firing in late midswing. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Swing Hip stays in 25 degrees flexion Hamstrings decelerate the limb You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Gait Powerpoint yankeeswin Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 1043 Category: Education License: All Rights Reserved Like it (3) Dislike it (0) Added: July 18, 2010 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Introduction to Observational Gait : Introduction to Observational Gait Biomechanics : Gait : Biomechanics : Gait Stance Phase Gait 60% of cycle Initial contact Loading response Midstance Terminal Stance Preswing Swing Phase Gait 40% of Cycle Early swing Mid-Swing Terminal Swing Gait In Lower Extremity : Gait In Lower Extremity Grouped by Phase Initial Contact : Initial Contact Initial Contact : Initial Contact Ankle jt. is in neutral STJ is slightly supinated Anterior Tibialis and EDL are on eccentrically Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Contact The knee is positioned in neutral The quadriceps contract to prepare for loading response The hamstrings contract to counteract a brief extension torque. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial contact Hip stays in the 25 degrees of flexion obtained in terminal swing. Hamstrings contract in reaction to hip flexion torque. Loading Response : Loading Response Loading Response : Loading Response Ankle moves rapidly into 10 degrees PF Pretibial mm action Tibia is pulled anterior Knee flexes STJ-Calcaneus everts 4-6 degrees (closed chain pronation) ?mm controls this Midtarsals? Loading Response : Loading Response Closed Chain Pronation: Loose packed position at STJ and in midtarsal region-allows for shock absorption Calcaneal eversion Talus horizontally adducts Tibia Internally Rotates Knee Flexes Femur internally rotates Knee Biomechanics: Gait : Knee Biomechanics: Gait Loading Response The knee flexes to 15 degrees Quadriceps contract eccentrically. Hip Biomechanics: Gait : Hip Biomechanics: Gait Loading Response Hip remains in 25 degrees of flexion. Glut max, hamstrings, and adductors contract Midstance : Midstance Midstance : Midstance Ankle DFs to 5-10 degrees Gastroc & Soleus working eccentrically Knee extends near neutral (Gastroc stabilizes the knee) Knee Biomechanics:Gait : Knee Biomechanics:Gait Midstance The knee extends near neutral. Quadriceps are on briefly, then the knee is stabilized by the gastrocnemius. Hip Biomechanics: Gait : Hip Biomechanics: Gait Midstance Hip extends to neutral. No muscle activity in the sagittal plane. The pelvis is stabilized in the frontal plane by the hip abductor group. Terminal Stance : Terminal Stance Terminal Stance : Terminal Stance Ankle DFs to 10 degrees 1st MTP extends to 30 Calf mms still on STJ-supinating Midtarsals? 1st Ray control Knee in full extension Terminal Stance : Terminal Stance Closed chain supination: subtalar joint and midtarsals go into a closed pack position. Makes a rigid lever for push off. Calcaneal inversion Talar horizontal abduction Tibial external rotation Knee extension Femur external rotation Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Stance The knee extends to neutral. No muslces are active at the knee. Knee still stabilized by the gastrocs. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Stance Hip extends 20 degrees. TFL fires to restrain hyperextension of the hip PreSwing : PreSwing PreSwing : PreSwing Knee rapidly flexing 1st MTP 30-70 DF Ankle to 20 degrees PF Lift off! Knee Biomechanics: Gait : Knee Biomechanics: Gait PreSwing The knee rapidly flexes to 40 degrees. The motion occurs without hip flexor activity. Hip Biomechanics: Gait : Hip Biomechanics: Gait PreSwing Thigh falls forward. This motion is aided by adductor longus. Initial Swing : Initial Swing Initial Swing : Initial Swing Ankle is dorsiflexing: Concentric contraction of Anterior tibialis, EHL, EDL. Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Swing The knee continues flexing to 60 degrees. Biceps femoris, sartorius, and gracilis are active. Foot clears the floor and the thigh advances. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial Swing 15 degrees of hip flexion is achieved, Iliacus, gracilis, sartorius, and adductor longus are active concentrically. MidSwing : MidSwing Midswing : Midswing Ankle is in neutral position, dorsiflexors are still on (isometrically or eccentrically at this point). Knee Biomechanics: Gait : Knee Biomechanics: Gait MidSwing The knee rapidly extends to 25 degrees. Knee extension motion is created by momentum There is some firng of the biceps femoris to control the rate of extension. Hip Biomechanics: Gait : Hip Biomechanics: Gait MidSwing: 25 degrees of hip flexion is achieved. The iliacus, gracilis, and sartorius, stop firing in late midswing. Terminal Swing : Terminal Swing Terminal Swing : Terminal Swing Ankle is still in neutral Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Swing The knee extends to neutral The quadriceps contract to ensure full extension. The hamstrings are active to decelerate the leg. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Swing Hip stays in 25 degrees flexion Hamstrings decelerate the limb Gait In Lower Extremity : Gait In Lower Extremity Grouped by Joint Initial Contact : Initial Contact Ankle jt. is in neutral STJ is slightly supinated Anterior Tibialis and EDL are on eccentrically Loading Response : Loading Response Ankle moves rapidly into 10 degrees PF Pretibial mm action Tibia is pulled anterior Knee flexes STJ-Calcaneus everts 4-6 degrees (closed chain pronation) ?mm controls this Midtarsals? Loading Response : Loading Response Closed Chain Pronation: Loose packed position at STJ and in midtarsal region-allows for shock absorption Calcaneal eversion Talus horizontally adducts Tibia Internally Rotates Knee Flexes Femur internally rotates Midstance : Midstance Ankle DFs to 5-10 degrees Gastroc & Soleus working eccentrically Knee extends near neutral (Gastroc stabilizes the knee) Terminal Stance : Terminal Stance Ankle DFs to 10 degrees 1st MTP extends to 30 Calf mms still on STJ-supinating Midtarsals? 1st Ray control Knee in full extension Terminal Stance : Terminal Stance Closed chain supination: subtalar joint and midtarsals go into a closed pack position. Makes a rigid lever for push off. Calcaneal inversion Talar horizontal abduction Tibial external rotation Knee extension Femur external rotation PreSwing : PreSwing Knee rapidly flexing 1st MTP 30-70 DF Ankle to 20 degrees PF Lift off! Initial Swing : Initial Swing Ankle is dorsiflexing: Concentric contraction of Anterior tibialis, EHL, EDL. Midswing : Midswing Ankle is in neutral position, dorsiflexors are still on (isometrically or eccentrically at this point). Terminal Swing : Terminal Swing Ankle is still in neutral Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Contact The knee is positioned in neutral The quadriceps contract to prepare for loading response The hamstrings contract to counteract a brief extension torque. Knee Biomechanics: Gait : Knee Biomechanics: Gait Loading Response The knee flexes to 15 degrees Quadriceps contract eccentrically. Knee Biomechanics:Gait : Knee Biomechanics:Gait Midstance The knee extends near neutral. Quadriceps are on briefly, then the knee is stabilized by the gastrocnemius. Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Stance The knee extends to neutral. No muslces are active at the knee. Knee still stabilized by the gastrocs. Knee Biomechanics: Gait : Knee Biomechanics: Gait PreSwing The knee rapidly flexes to 40 degrees. The motion occurs without hip flexor activity. Knee Biomechanics: Gait : Knee Biomechanics: Gait Initial Swing The knee continues flexing to 60 degrees. Biceps femoris, sartorius, and gracilis are active. Foot clears the floor and the thigh advances. Knee Biomechanics: Gait : Knee Biomechanics: Gait MidSwing The knee rapidly extends to 25 degrees. Knee extension motion is created by momentum There is some firng of the biceps femoris to control the rate of extension. Knee Biomechanics: Gait : Knee Biomechanics: Gait Terminal Swing The knee extends to neutral The quadriceps contract to ensure full extension. The hamstrings are active to decelerate the leg. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial contact Hip stays in the 25 degrees of flexion obtained in terminal swing. Hamstrings contract in reaction to hip flexion torque. Hip Biomechanics: Gait : Hip Biomechanics: Gait Loading Response Hip remains in 25 degrees of flexion. Glut max, hamstrings, and adductors contract Hip Biomechanics: Gait : Hip Biomechanics: Gait Midstance Hip extends to neutral. No muscle activity in the sagittal plane. The pelvis is stabilized in the frontal plane by the hip abductor group. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Stance Hip extends 20 degrees. TFL fires to restrain hyperextension of the hip Hip Biomechanics: Gait : Hip Biomechanics: Gait PreSwing Thigh falls forward. This motion is aided by adductor longus. Hip Biomechanics: Gait : Hip Biomechanics: Gait Initial Swing 15 degrees of hip flexion is achieved, Iliacus, gracilis, sartorius, and adductor longus are active concentrically. Hip Biomechanics: Gait : Hip Biomechanics: Gait MidSwing: 25 degrees of hip flexion is achieved. The iliacus, gracilis, and sartorius, stop firing in late midswing. Hip Biomechanics: Gait : Hip Biomechanics: Gait Terminal Swing Hip stays in 25 degrees flexion Hamstrings decelerate the limb