If an athlete increases their strength capability by 15% and their body mass by 20%, their ability to accelerate is:

Q: sarcomeres are at their longest

A: Each of the muscle fibers are made up of even smaller fibers called as myofibrils. The sarcomere is…

Q: Why is muscle 1 more powerful than muscle 43

A: The shape of the force-velocity (F-V) relationship affects many aspects of muscle physiology,…

Q: Explain the structure and organization of muscle fascicles and the role in generating force include…

A: Bones, ligaments, muscles, tendons, etc. constitute the musculoskeletal system. The body movement is…

Q: A motor unit with the designation 1:25 is Group of answer choices made up of a combination of Type…

A: Neurons are the basic fundamental unit of the nervous system. The task of the nervous system is to…

Q: ney: Load (L) = 5 kgs E = Effort F = Fulcrum Weight of forearm = 1.8 kgs L- Load Biceps brachi…

A: Muscle is utilized to support joints and keep them protected from collapsing under stress. Smooth…

Q: Which of the following statements accurately describes the pattern of recruitment in a muscle when…

A: The contraction of muscle is responsible for the development of muscle movement. The generation of…

Q: depolarization of the transverse tubules (T-tubules) promote

A: Every cell in the body has a cell membrane which separate it from the external environment of the…

Q: A motor unit is site of  interaction between a motor neuron and the muscle fiber that it is…

A: Neurons are the specialized cells of the nervous system and are the basic functional unit of the…

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: 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: During a single muscle twitch, the sarcomeres within a muscle contract maximally. How can you…

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

Q: Select the correct statements regarding myosin-mediated contraction in the sarcomere. Ca2+ is…

A: Actin and myosin work together to produce muscle contractions and, therefore, movement.

Q: the process of muscle contraction, which of the following steps immediately precedes the influx of…

A: Muscle contraction:-  Is the response  a muscle has to any kind of stimuli where the result is…

Q: Question 18 Analyze the image below. Explain what happens during muscle con- traction according to…

A: Introduction: Myofibrils consist of parallel bundles of protein microfilaments, known as…

Q: To demonstrate muscle fatigue, a student held an 8 lb dumbbell in her hand and abducted her arm…

A: Ans - the correct answer for the above question is- A) Different motor units were contracting while…

Q: More than one answer may be correct.  Myogenic cells in smooth muscle   Question 9 options:   are…

A: Introduction :- Gap junctions are specialized structures in the cell membrane that allow the direct…

Q: hat do these results tell you about the relationship between electrical activity and muscle…

A: Motor neurons stimulate the muscles and this incitement causes electrical movement/activity in the…

Q: The motor unit firing patterns are measured in a human hand muscle using an electromyography (EMG)…

A: The EMG pattern observed as the individual voluntarily attempts to make a low-level force of…

Q: Fast twitch muscle fibers have lower force production than slow twitch.     True   False

A: Introduction:- The muscular system is an organ system that connects bones, tendons, and heart…

Q: Which of the following is NOT true of an eccentric contraction? Contraction produces a greater force…

A: Muscles are the most abundant structural component in the human body responsible for the functions…

Q: The following is an oscilloscope tracing displaying the muscle twitch of an intact, viable frog…

A: Muscle contraction is a major phenomenon associated with the functioning of the myofibril occurring…

Q: According to the when its______ Group of answer choices sliding-filament model of muscle…

A: The sarcomere is defined as the region between two Z line. It is the basic fundamental unit of…

Q: true or fasle :  Eccentric muscle contractions at a constant velocity are be considered isokinetic.…

A: Concentric refers to a muscle that shortens under tension. Eccentric refers to a muscle that…

Q: A muscle has a limit to how much it can contract, based on the limit of contraction of each…

A: The study of the human body can be divided into anatomy and physiology. The anatomy studies about…

Q: atent phase V [ Choose ] Active return of Ca2+ into SR Ca2+ released from SR Power stroke of…

A: Alpha motor neurons are the neurons which  innervate the skeletal muscle fibers. On entering a…

Q: Fast oxidative glycolytic fibers in skeletal muscle are used Select one: O a. intermittently, for…

A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…

Q: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: In an isometric contraction the muscle develops tension but does not - exhibit elasticity does not…

A: * there are three types of muscle contractions present  are:  Concentric  Eccentric Isometric…

Q: The following are the basic steps of a muscle contraction:               I.  Neurotransmitters bind…

A: Muscle tissue is responsible for movement. There are found three types of muscles: Skeletal,…

Q: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

A: Rigor mortis is the third phase of death. It is one of the unmistakable indications of death,…

Q: Question 6 of 16 Which of the following is mismatched with its function in muscle contraction?…

A: Introduction: Muscle contraction is defined as the change in length of the muscle , it can include…

Q: active muscle tension begins at approximately one hundred percent of resting length for a muscle…

A: Muscle tension is the condition where muscles of the body remain semi-contracted for a lengthy…

Q: All of the following are characteristic of delayed onset muscle soreness (DOMS) EXCEPT: It is more…

A: Delayed onset muscle soreness is a clinical condition in which there is a pain in muscle within the…

Q: True/False

A: Every living organisms try to maintain a constant homeostatic internal environmental conditions that…

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.