When holding an object, does the number of motor units remain the same? Are the same motor units used for the duration of holding the object?

Q: Briefly explain how does cross-bridge formation affect muscle force.

A: During muscle contraction, a force is generated in the muscle. This is termed the muscle force. This…

Q: Explain the role of joints in skeletal movement

A: Joints are practical intersections between at least two bones. Joints tie the skeleton together, to…

Q: Keeping the object you are carrying close to your body reduces the force and stress on your spine.…

A: Keeping an object that we are getting close to the body reduces the force and stress on the spine .…

Q: During this silent period what structures are likely to be producing trunk extension torque? Is this…

A: The muscle activation pattern illustrated is termed the myoelectric ‘silent period’, or…

Q: Is there a difference in the time to fatigue of the dominant and non-dominant arm? Cite relevant…

A: The dominant forearm is the strongest forearm naturally. It is the hand that is always chosen to…

Q: You are the gym with a friend who complains that she cannot lift as much weight on a new machine as…

A: Exercise refers to any type of physical activity. During exercise, the two important organs of the…

Q: List different types of movements? Give some examples?

A: BASIC INFORMATION  JOINTS The point of meeting of two bones or more than that is known as joint. The…

Q: Give two example of 'curvature' movement?

A: Terrestrial plants are not free to move around and hence cannot change their location. Yet, plants…

Q: What is a motor unit? How do large and small motor units differ functionally?

A: The contraction of muscle fibers are also associated with the neural responses. The motor neuron and…

Q: Why is it not possible for a person to sprint for 5 km?

A: Sprints are basically short runs which requires you to run as hard as you can, utilizing all your…

Q: 1. We have a twenty-five-year-old athlete who has an amputee from above the knee. Describe a…

A: For the amputee athlete a Running blade prostheses should be chosen. Running Blade prostheses has…

Q: What is the duration of the mechanical event

A: The cardiac cycle has 4 mechanical events:  Iso-volumetric relaxation Inflow Iso-volumetric…

Q: Describe three types of musculoskeletal levers and their respective advantages?

A: As we know human body is made of skeleton. Skeleton is structure that keeps body in shape and helps…

Q: What is an example of multiple lever types in the body during the same movement?

A: A lever helps to lift or move heavy objects easily. The human body is capable to perform a wide…

Q: Distinguish between a synergist, antagonist, and fixator. Explain how each of these may affect the…

A: The role of the muscle is to produce the movement smooth and effective.

Q: Give 10 example each of high and low impact aerobic movement

A: Aerobic exercise plays a very important role in our fitness and healthy lifestyle. This helps to…

Q: Explain various types of movement with example?

A: Depending on the location of the muscle and the joint, there are many movements, which muscles…

Q: Do the following mathematical calculations to figure out the work each hand did: Work = 1…

A: Introduction The relationship between two versions of a gene is referred to as dominant. Each parent…

Q: List and demonstrate the types of movements that occur at diarthroses?

A: Synarthrosis is the common movable joint in the body. These are also known as diarthrosis and have a…

Q: IF a patient is unable to dorsiflex his or her foot.Which muscle do you think would be involved in…

A: Dorsiflexion is the ability to contract or pull you feet inwards ie towards your shins. While…

Q: What is the main active muscle group across the (i) right knee joint and (ii) right ankle joint…

A: INTRODUCTION Muscles are group of muscle fiber they can contract and relax and they produce force.…

Q: Define a first-, second-, and third-class lever and give an example of each in the musculoskeletal…

A: Levers is a machine that is connected to the beam at a fixed point known as fulcrum. In biological…

Q: Define Flexors? Give one example of it?

A: Muscles in the body can be  a flexor,  extensor or a stabilizer depending on  It's action  and…

Q: Why can you lift a larger load when your elbow is slightly flexed and your biceps muscle is at an…

A: The muscles relax and contract the body parts of the human body to cause the movements. The effect…

Q: In the middle of a stride, you have one foot on the groundand you are about to swing the other leg…

A: In the human body, physiological actions like walking running, etc. require muscle actions. The…

Q: In grasping the load, how does the movement of the human hand compare with that of the myoelectric…

A: The myoelectric regulated prosthesis is an artificial limb that is controlled by electrical impulses…

Q: Correctly label the following parts of a motor unit. neuromuscular junction spinal cord skeletal…

A: The motor unit, which contains the motor nerve fiber and the muscle fibers, is the functional unit…

Q: Define a motor unit and explain how utlization of motor units is the same or different for moving a…

A: The nervous system consists of the central nervous system and peripheral nervous system. The brain…

Q: Define a lever.

A: The liver is the largest gland or largest solid organ in the human body. It is a spongy mass of the…

Q: Rowing is a whole body movement Rowing is simulated using a rowing ergometer Does a preload occur…

A: KEY WORDS :- Rowing - It is a sport in which racing a boat on water using oars. It requires certain…

Q: Describe what the “silent period” is during trunk flexion.

A: The trunk flexion is the result of the simultaneous spine flexion and forwards pelvic tilt. For the…

Q: Identify the type of muscle contraction involved in the jump and describe the movement patterns of…

A: Verticle jumping is a plyometric exercise that involves exertion of maximum force for a short time.…

Q: Explain the difference between active and passive range of motion.

A: We know that The range of motion exercise applies to an operation aimed at enhancing a particular…

Q: Define a motor unit.

A: A muscle is made up of numerous muscle tissues bundled together and surrounded by a tough connective…

Q: Why is it advantageous to have a highly folded sarcolemma at the motor end plate?

A: Neuromuscular junction is area or junction or connection between the end of the motor nerve plate…

Q: Name the specific types of angular motion.

A: Angular motions happen when an item is around another thing expanding or diminishing the angle. The…

Human Movement

Humans can move from one place to another through coordinated movements and postures. The movement produced by the human body due to the contraction of muscles and bending of bone joints is called human movement. Human movements are controlled by the nervous system. Hence, the human movement incorporates the use of muscles, ligaments, joints, and bones.  Kinesiology is the field that deals with the study of human movements.