On the sustained contraction recording, indicate when the muscle twitches began to combine (summate), andlabel the period of tetanic contraction and the period of fatigue.

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: List and discuss the primary changes that occur in skeletal muscle as a result of endurance…

A: The set of activities performed to increase the capacity of the muscles or endurance is termed as…

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: GIVE 3 EXERCISE THAT CAN BE CONSIDERED AS A LOCOMOTOR MOVEMENT WITH FLEXION AND EXTENSION MOVEMENT…

A: Locomotor- These are the movements by which the body moves from one point to another either by…

Q: Hill's equation gives a relation between muscle contraction rates νν and muscle tension TT…

A: We have to rewrite the equation in a form to show that T is dependent on v including T0, alpha and…

Q: Is the length of muscle contraction at the beginning of tetanic contraction the same or different…

A: A tetanic contraction can be defined as a sustained muscle contraction that evokes when the motor…

Q: If an individual completed 60-min of exercise at 40% of their maximal effort, which type of muscle…

A: Muscle fibres, also known as muscle cells or myofibers, are the basic structural units that comprise…

Q: During a maximal attempt, one may experience a burning sensation within the muscles being assessed.…

A: The burning sensation experienced during maximal efforts is often associated with fatigue and while…

Q: Explain the phases of a twitch contraction.

A: The contraction generated by one action potential is termed a muscle twitch.

Q: Maximal muscle force changes continuously throughout the elbow flexion according to the joint angle.…

A: Introduction: The myofibrils are made of parallel bundles of protein microfilaments referred to as…

Q: Underline the error in each of the following statements and provide the correction. ii. Smooth…

A: Introduction Smooth muscles are involuntary muscles i.e. these muscles are not under conscious…

Q: Name the stages of a muscle twitch in order

A: Muscle twitches are involuntary contractions of the muscle fibers. Nerves control these muscle…

Q: please explain in detail in your own words Differentiate between muscle tone, postural tone and…

A: Due to our answering policy, we can only answer one question at a time. Please repost the other…

Q: Define passive tension

A: The main stimulus for the development of muscle size and strength is tension. It includes the right…

Q: List the stages of a muscle twitch and explain what is occurring in each stage.

A: Muscle twitch occurs as a result of the contraction of one muscle fiber in response to a nervous…

Q: Describe the factors that contribute to muscle fatigue.

A: Muscle fatigue refers to the symptom that reduces the ability of muscles to work overtime. It can be…

Q: Describe how training can increase the size andefficiency of both types of muscle fibers.

A: The musculoskeletal system of the human body is made of muscles and bone. Over 40% of the…

Q: Diagram the molecular events of the contraction-relaxation cycle. Be sure to highlight the roles of…

A: The muscular system is an organ system comprising skeletal, smooth, and cardiac muscles. It grants…

Q: What causes the variation of the measurements for the periods (latent, contraction, relaxation…

A: Motor neurons that are located in the motor cortex of the brainstem or the spinal cord innervate…

Q: If the muscle fiber is stretched to 150% of muscle length and thentechnically stimulated, what would…

A: Muscle contraction is shorting of length of muscle which  lead to locomotion and movement. Most…

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

A: Energy method and muscles used in 400 m race

Q: Identify and describe the three phases of a twitch contraction

A: Decrease in the length of a muscle or an increase in tension across it results in the contraction of…

Q: Outline the model to explain delayed-onset muscle soreness.

A: Delayed onset muscle soreness occur and it cause pain amd inflammation and this is temporary.and…

Q: Define total tension

A: The contraction of the muscles can be explained by the sliding filament theory. According to sliding…

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: 1. What is a neuromuscular junction? 2. Explain the "all-or-none" law of muscle contraction.

A: The muscular system consists of skeletal, smooth and cardiac muscles. These are responsible for the…

Q: Discuss physiologic muscle hypertrophy and muscle atrophy of disuse.

A: Muscle can be defined as the soft tissue of the body that is associated with the bones and helps in…

Q: Define EPOC and muscle fatigue. List possible causes of muscle fatigue.

A: Muscles are the tissues in the body that are contractile and soft. They aid in the movement as they…

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 the role of tetanus in normal muscle action.

A: All the sensory activities are controlled and coordinated by the nervous system. The external…

Q: A E

A: The muscular system of the human body is made up of muscles which are soft tissues that are found…

Q: At what frequency of stimulation did tetanic contraction occur?

A: The muscles are stimulated by the nerve impulses causing the contraction of the muscles. The muscle…

Q: discuss the effects of resistance and endurance exerciseson muscles.

A: The physical exercises can change the appearance of the muscles in many ways. Resistance training…

Q: List the phases of a muscle twitch, and describe theevents that occur in each phase.

A: Phases of Muscle twitch:                   When an stimulant action potential travels down through…

Q: What causes the variations kn the measurements for the twitch amplitudes for different twitches?

A: A contraction of muscle fibers generate when an action potential pass down the motor neurons. A…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.