The Gait Cycle [Part 2] | Terminal Stance (TSt) → Pre-swing (PSw)

The video tutorial explores the gait cycle, focusing on the terminal stance and pre-swing phases. It reviews midstance and explains the transition to terminal stance, highlighting key events like forefoot rocker initiation and controlled dorsiflexion. The tutorial details the mechanics of terminal stance, including hip extension and knee flexion, and transitions into pre-swing, emphasizing passive knee flexion and plantar flexion. The video concludes with a brief look at the pelvis's role in these phases.

When does the midstance phase of the gait cycle begin?

• When the reference leg is fully extended

• When the center of gravity is over the foot

• When the toe of the contralateral leg lifts off

• When the heel of the reference leg touches the ground

What is the primary function of the forefoot rocker during terminal stance?

• To stabilize the hip joint

• To transfer weight onto the balls of the feet

• To control ankle dorsiflexion

• To initiate knee flexion

What is the significance of the trailing limb posture in the gait cycle?

• It reduces the need for muscle contraction

• It stabilizes the ankle joint

• It ensures effective hip extension

• It allows for maximum knee flexion

Which muscle group is primarily responsible for controlling dorsiflexion during terminal stance?

• Quadriceps

• Triceps Surae

• Hamstrings

• Gluteus Maximus

During terminal stance, what is the maximum angle of dorsiflexion achieved?

• 5 degrees

• 10 degrees

• 15 degrees

• 20 degrees

What is the role of the subtalar joint during terminal stance?

• To decrease knee flexion

• To increase hip extension

• To act as a rigid lever through supination

• To absorb shock through pronation

Which muscle is primarily responsible for subtalar supination?

• Tibialis Posterior

• Tibialis Anterior

• Soleus

• Peroneus Longus

What marks the beginning of the pre-swing phase?

• 30 degrees of MTP extension

• The heel touching the ground

• The knee reaching full extension

• The hip reaching maximum flexion

Which muscle is NOT involved in inducing hip flexion during pre-swing?

• Gastrocnemius

• Tensor Fascia Lata

• Rectus Femoris

• Adductor Longus

What is the primary cause of passive knee flexion during pre-swing?

• Active contraction of the hamstrings

• Contraction of the quadriceps

• Hip flexion and ankle plantar flexion

• Increased dorsiflexion torque