Q. 34 - Biology

Question

Describe the joints and motions involved in taking a step forward if a person is initially standing still. Assume the person holds his foot at the same angle throughout the motion. 

Step-by-Step Solution

Answer

• Walking would include bending the knee (a modified hinge joint) and moving the leg in the hip because the motion of the foot is not included (a ball and socket joint). 
• The knee will flex the shin toward the thigh as the foot lifts off the ground, and the hip joint will move the femur in a long motion. 
• The hip retracts the femur as the foot lands, whereas the knee extends the leg. 

Step : 1 Standing-related actions

• When the muscles contract, the motions associated with standing up occur. 
• The quadriceps, hamstrings, and glutes are the muscles required to carry out these movements.

Step : 2 Joint motion during walking

• Transverse plane twisting or rotational actions include turning your head side to side. 
• The sagittal plane is where actions like walking, pushing, pulling, and squatting take place.