Normal Gait 4 Flashcards
What is the most challenging portion of the gait cycle?
Weight acceptance
What is the ROM at the ankle joint during the initial contact phase?
Neutral
What is the torque demand at the ankle joint during the initial contact phase?
Plantar flexion torque
What is the muscle action at the ankle joint during the initial contact phase?
Isometric contraction of pretibial muscles
What is the functional significance at the ankle joint during the initial contact phase?
Foot correctly positioned for heel rocker action in LR
What is the ROM at the knee joint during the initial contact phase?
Neutral to 5° of flexion
What is the torque demand at the knee joint during the initial contact phase?
Brief extension torque
What is the muscle action at the knee joint during the initial contact phase?
Quads prep for next phase
Hamstrings counter extension torque
What is the functional significance at the knee joint during the initial contact phase?
Extension torque stabilizes the knee
What is the ROM at the hip joint during the initial contact phase?
Flexed 20°
What is the torque demand at the hip joint during the initial contact phase?
High intensity flexion torque begins
What is the muscle action at the hip joint during the initial contact phase?
Hip extensors active
Semimembrinosus and long head or biceps femoris decrease
What is the functional significance at the hip joint during the initial contact phase?
Hip in position of forward reach
What is happening with the pelvis in the initial contact phase?
5° of forward rotation in horizontal plane
What is the ROM at the ankle joint during the loading response phase?
5° of plantar flexion
What is the torque demand at the ankle joint during the loading response phase?
Plantarflexion torque forces foot to floor then diminishes
What is the muscle action at the ankle joint during the loading response phase?
Pre Tibialis contract eccentrically
Soleus and gastroc act to control tibial advancement
What is the functional significance at the ankle joint during the loading response phase?
Heel rocker action created
Momentum carried forward
Knee flexion initiated
What is the ROM at the knee joint during the loading response phase?
15° of flexion
What is the torque demand at the knee joint during the loading response phase?
Moderate intensity flexion torque
What is the muscle action at the knee joint during the loading response phase?
Eccentric quad activity
Diminishing hamstring activity
What is the functional significance at the knee joint during the loading response phase?
Shock absorbed
Limb stability maintained
What is the ROM at the hip joint during the loading response phase?
20° of flexion
What is the torque demand at the hip joint during the loading response phase?
High intensity flexion torque
Adduction torque begins
What is the muscle action at the hip joint during the loading response phase?
Hip extensors and abductors active
What is the functional significance at the hip joint during the loading response phase?
Hip joint, pelvis, and trunk stabilized in Sagittal and frontal planes
What is happening with the pelvis in the loading response phase?
5° of forward rotation in horizontal plane
What does the heel rocker action provide?
Forward progression of the entire stance limb
What is the ROM at the subtalar joint during the loading response phase?
Calcaneus everts 5°
Subtalar joint pronates
What is the torque demand at the subtalar joint during the loading response phase?
Eversion torque
What is the muscle action at the subtalar joint during the loading response phase?
Anterior and posterior Tibialis muscles contract eccentrically
What is the functional significance at the subtalar joint during the loading response phase?
Assists shock absorption
Induces IR of tibia which reduces rotatory stress on ankle
