D3 - Squatting kinematics and kinetics and their application to exercise performance Flashcards
How many muscles are estimated to be activated during squat performance?
Over 200 muscles are estimated to be activated during squat performance.
What contributes to uncommon squat-related injuries when performed properly?
Proper technique and appropriate exercise prescription contribute to uncommon squat-related injuries.
What joints are involved in ankle movement during squat performance?
The ankle is comprised of the talc rural and subtalar joints
Where is the center of pressure (COP) located in the upright position before squatting?
In the upright position before squatting
Describe the movement of the COP and ankle joint torque during the squat acceleration and deceleration phases.
During acceleration
What movements does the tibiofemoral joint carry out during the squat?
The tibiofemoral joint carries out sagittal plane movement through a range of motion of 0 to approximately 160 degrees of flexion.
What is considered the most important stabilizer of the knee joint among ligaments and cartilage?
Among ligaments and cartilage
Which muscles act as the primary knee extensors during the squat?
The quadriceps femoris muscles act as the primary knee extensors during the squat.
How do the hamstrings behave during closed-chain exercises like squats?
In closed-chain exercises like squats
What type of joint is the hip joint
and when does maximal torque occur during squat performance?
Which muscles are the primary hip muscles involved in squatting?
The gluteus maximus and the hamstrings are the primary hip muscles involved during squatting.
What squat descent tempo is considered a general guideline?
A 2 or 3-second eccentric tempo is considered a general guideline for squat descent.
What are the considerations for a wider stance squat versus a closer stance in terms of muscle development?
A wider stance is preferable for optimal development of the hip adductors and hip extensors
How does the front squat compare to the back squat in terms of knee compression and lumbar stress?
The front squat produces significantly lower knee compression and lumbar stress compared to back squats
What is the most vulnerable joint during squatting
and how should the lumbar spine be maintained?
