Normal Gait 6 Flashcards
What is the ROM during the pre swing phase at the ankle joint?
15° of Plantarflexion
What is the torque demand during the pre swing phase at the ankle joint?
Dorsiflexion torque rapidly decreases
What is the muscle action during the pre swing phase at the ankle joint?
Calf muscle activity decreases
Pretibial muscle activity increases
What is the functional significance during the pre swing phase at the ankle joint?
Forefoot on floor assists balance
Plantarflexion assists knee flexion and limb advancement
What is the ROM during the pre swing phase at the subtalar joint?
Neutral
What is the torque demand during the pre swing phase at the subtalar joint?
Inversion torque diminishes to zero
What is the muscle action during the pre swing phase at the subtalar joint?
Anterior Tibialis begins to contract
What is the functional significance during the pre swing phase at the subtalar joint?
Preparation for foot clearing the ground during swing
What is the ROM during the pre swing phase at the MTP joint?
60° of extension
What is the torque demand during the pre swing phase at the MTP joint?
Extension torque rapidly decreases
What is the muscle action during the pre swing phase at the MTP joint?
Calf muscle activity decreases
What is the functional significance during the pre swing phase at the MTP joint?
Forefoot on floor assists balance
What is the ROM during the pre swing phase at the knee joint?
Flexes to 40°
What is the torque demand during the pre swing phase at the knee joint?
Flexion torque demand
What is the muscle action during the pre swing phase at the knee joint?
Minimal knee flexor activity from Gracilis
Rectus femoris may be active
What is the functional significance during the pre swing phase at the knee joint?
Contributes to knee flexion
Rectus femoris may restrain speed of knee flexion
What is the ROM during the pre swing phase at the hip joint?
10° of extension
What is the torque demand during the pre swing phase at the hip joint?
Hip extension torque diminishes
What is the muscle action during the pre swing phase at the hip joint?
Adductor longus contracts concentrically
Rectus femoris may be active
What is the functional significance during the pre swing phase at the hip joint?
Limb advancement begins
Hip flexion motion contributes to knee flexion
What is happening to the pelvis during the pre swing phase?
Remains in 5° of backward rotation in horizontal plane
What is the ROM during the initial swing phase at the ankle joint?
5° of Plantarflexion
What is the torque demand during the initial swing phase at the ankle joint?
Very low level plantar flexion torque
What is the muscle action during the initial swing phase at the ankle joint?
Pre tibial muscles contract concentrically to initiate dorsiflexion
What is the functional significance during the initial swing phase at the ankle joint?
Dorsiflexion is needed to clear foot in next phase begins
What is the ROM during the initial swing phase at the subtalar joint?
Neutral
What is the torque demand during the initial swing phase at the subtalar joint?
None to slight inversion torque
What is the muscle action during the initial swing phase at the subtalar joint?
Anterior Tibialis stabilizes medially
What is the functional significance during the initial swing phase at the subtalar joint?
Foot positioned to clear the ground
What is the ROM during the initial swing phase at the MTP joint?
Flexion to neutral position and is maintained there throughout swing
What is the torque demand during the initial swing phase at the MTP joint?
Flexion torque which quickly decreased
What is the muscle action during the initial swing phase at the MTP joint?
EHL and EDL peak in activity
What is the functional significance during the initial swing phase at the MTP joint?
Toes stabilized allowing EHL and EDL to facilitate dorsiflexion at ankle
What is the ROM during the initial swing phase at the knee joint?
Flexion to 60°
What is the torque demand during the initial swing phase at the knee joint?
Knee flexion torque
What is the muscle action during the initial swing phase at the knee joint?
Peak in activity of the short head of biceps femoris, Sartorius, and Gracilis
What is the functional significance during the initial swing phase at the knee joint?
Foot clears floor as thigh begins to advance
What is the ROM during the initial swing phase at the hip joint?
15° of flexion
What is the torque demand during the initial swing phase at the hip joint?
Hip extension torque initial which approaches zero by end of phase
What is the muscle action during the initial swing phase at the hip joint?
Iliacus, Gracilis, Sartorius, and adductor longus active
What is the functional significance during the initial swing phase at the hip joint?
Limb advancement continues
What is happening at the pelvis during the initial swing phase?
Remains in 5° of backward rotation in horizontal plane
