Describe the relative force of contraction that can be developed in your back muscles when you bend at the knees to lift an object and when you bend at the waist to lift an object, based on the length-tension relationship. Explain the significance.

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: Assuming that the mass (weight) of these three different muscles is the same, WHICH most power, for…

A: Understanding Muscle powerA vital component of human biomechanics, Muscular power generation is…

Q: Why do men have higher grip strength than women? Include the concept of exercise physiology

A: Grip strength is measured in pounds or kilograms.  Mails and females have different grip strength…

Q: assume that the force generated by 2 different arms was exactly the same. if the EMG for arm 1 was…

A: EMG stands for electromyography which is a procedure for measurement of the electrical response of…

Q: insufficiency

A: Muscle is a type of contractile tissue that is organised into coordinated systems for greater…

Q: Explain the different muscle contractions in relation to the squat exercises.

A: A squat can be described as a kind of strength exercise in which the trainee lowers their hips from…

Q: What does the integrated curve (in BIOPAC) represents ?

A: BIOPAC  is a digital platform used for teaching student, specifically developed for secondary…

Q: Muscles in unfused/incomplete tetanus reach maximum tension while relaxing slightly between stimuli.…

A: Tetanic muscle contraction Tetanic muscle contraction can be either complete or incomplete. Complete…

Q: What factors affect muscle contraction during bicep curls. Explain

A: The biceps curl mainly targets the biceps brachii, brachialis and brachioradialis muscles. These…

Q: muscle force is highest at the start of the muscle’s shortening phase

A: Introduction:-  According to the Research that  has be shown that a torque that  produced against a…

Q: Where are the effort, fulcrum, and resistance in the act of dorsiflexion? What class of lever does…

A: A lever is a rigid and elongated object rotating about a fixed point. This point which is fixed is…

Q: Consider only the effect of the brachioradialis muscle for these questions: If a weight is held in…

A: Levers may be used to move a much higher weight with a small force. Bones serve as lifting arms…

Q: Two lifter's knees are of interest at a specific moment in their lifts. In both lifts, the knee…

A: Patellofemoral joint consist of posterior patella and anterior femur. It is a diarthrodial plane…

Q: To answer the following questions utilize the attached picture. A. What muscles are acting on the…

A: The first class lever- is where the fulcrum is in the middle between the effort and the load. The…

Q: Describe the qualities of the muscle fiber arrangement and tendon attachments of biceps femoris.…

A: There are three major types of muscle present- cardiac muscle, smooth muscle, and skeletal muscle.…

Q: an athletic trainer, you are supervising the rehabilitation of a junior baseball pitcher who…

A: Rehabilitation is the essential process after the surgery which is re habitating the function of the…

Q: The adjacent diagram displays the joint reaction force between the acetabulum and femoral head for…

A: Approach to solving the question:Given data:The weight of the right leg is 1/6​ of the total body…

Q: Graph and describe the relationship between movement velocity and the amount of force exerted during…

A: As the force-velocity curve suffering from muscular strength coaching by most circumstances, the…

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: Explain Lever Action of Muscles and Bones with diagram?

A: The muscles are made up of muscle fibers which contain sarcomere in the stranded form. Sarcomere is…

Q: explain how the shortening velocity can be varied from very fast to very slow even though the load…

A: Muscle contraction will depend upon two types of velocity. The twitch and tetanic. The twitch refers…

Q: What do these results tell you about when and how much you use your extensor muscles?

A: Humans have a well-developed muscular and skeletal system for the movement and locomotion of the…

Q: All exercises below are examples of closed kinetic chain exercises except...     Push up…

A: Closed kinetic chain (CKC) are actual activities performed where the hand or foot is fixed in space…

Q: Identify and discuss the main muscle groups needed to perform 400 meter event.

A: Energy method and muscles used in 400 m race

Q: Describe the characteristics of the three types of levers in the body

A: However, immovable joints are primarily responsible for the growth and may permit molding at the…

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: Analyze the Barbell press (overhead or military press) exercise by breaking the exercise into a…

A: The objective of this question is to analyze the Barbell press exercise by breaking it down into two…

Q: With the shoulder flexed at 30°, the moment arm of the deltoid muscle is 2 for the force exerted by…

A:

Q: Maximum force * Exerted when maximum number of cross bridges make contact Exerted at optimum resting…

A: Muscles come under the category of soft tissues. A human body is comprised of approximately six…

Q: When using muscles how do you generate more tension when picking up a heavier object than you do…

A: The amount of tension produced by muscles depends on the cross-sectional area of the muscle fiber…

Q: Before testing a true 1-RM exercise, why should you allow your client to complete 3 trial…

A: RM (repetition maximum ) is often expressed as a one-repetition maximum or 1-RM. It signifies the…

Q: Explain why the hamstring muscles fatigue faster with the 5-lb ankle weight.

A: Hamstring injury is more commonly seen in athletes and sportspersons. In the back of the thigh, a…

Q: Give an example of where circumduction but not rotation can occur

A: The motion is described according to its direction relative to the anatomical position of the…

Q: In the EMG experiment. the measured force came from the contraction of which muscles? Check all that…

A: The electrical activity of the muscles and the nerves regulating the muscles can be measured using a…

Q: Describe the roles of plantar flexion and dorsiflexion inwalking. What muscles produce these…

A: The term flexion refers to the movement at a joint which decreases the angle between the bones…

Q: Consider the movements of plantar flexion and dorsiflexion. Propose a reason why there are far more…

A: The ankle joint observes four types of movements, two of which are dorsiflexion and plantarflexion.…

Q: Briefly explain why it is easier to swing the leg through in the swing phase of sprinting with the…

A: meaning of Swing the leg is raising the right leg out to the side and balancing on the left foot. In…

Q: If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from…

A: Introduction  The biceps muscle is located in the front of the upper arm. The biceps consists of a…

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: GIVE EXAMPLES OF EXERCISES THAT INCLUDES BOTH FLEXION AND EXTENSION MOVEMENT AND EXPLAIN WHY

A: The main function of flexor is providing flexion to the wrist and helps in capture of the hand and…

Q: explain the type of contraction in quadriceps, glutes, and calves muscle while walking isometric OR…

A: The specific muscles undergo contraction and relaxation so as to enable us to walk. These…

Q: Give a part of the body that uses the 2nd class lever system

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…