Understanding Main Muscles and Their Functions in Sports

What is the primary function of the pectoral muscles?

• To flex the knee

• To stabilize the core

• To extend the legs

• To move the arms across the body

Which muscle is responsible for extending the arm at the elbow?

• Bicep

• Latissimus dorsi

• Tricep

• Deltoid

What role do the deltoids play in sports activities?

• They assist in toe movements

• They are involved in knee flexion

• They stabilize the lower body

• They help in swinging and moving the arms in various directions

Which muscle is known as the widest in the body?

• Gastrocnemius

• Trapezius

• Latissimus dorsi

• Quadriceps

What is the primary function of the abdominal muscles?

• To assist in arm movements

• To stabilize the core and assist in twisting

• To extend the legs

• To flex the knee

Which muscle group is crucial for providing power in running and jumping?

• Obliques

• Glutes

• Biceps

• Trapezius

What is the main function of the quadriceps?

• To rotate the shoulder

• To stabilize the core

• To extend the knee

• To flex the elbow

Which muscle is located at the back of the lower leg?

• Hamstrings

• Latissimus dorsi

• Quadriceps

• Gastrocnemius

What action is the calf muscle primarily responsible for?

• Flexing the knee

• Rising onto the toes

• Rotating the shoulder

• Stabilizing the core

What is the main takeaway from the video regarding muscle strengthening?

• Focus only on upper body muscles

• Strengthen all muscles for better sports performance

• Ignore core muscles

• Only work on leg muscles