Which of the following is a reason for reduced long-distance running performance in the heat (e.g., 85° F) ?     inhibits gluconeogenesis     hastens glycogen depletion     lowers muscle pH     inhibits nerve impulse transmission to the muscle fiber

Q: Which of the following summarizes the role of acetylcholinesterase in muscle contraction? O opens…

A: Acetylcholinesterase (AChE) is an enzyme that breaks down the neurotransmitter acetylcholine in the…

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: Describe the pattern of recruitment of muscle fiber types during aerobic activities of progressively…

A: Aerobic activities refer to those activities which require oxygen for their conduction. At the time…

Q: which decreases cytoplasmic calcium ion concentration The relaxation of skeletal muscle relies on…

A:

Q: /hich statement about muscle contractions is INCORRECT ? Once maximum muscle tension is achieved, no…

A: Muscle contraction occurs when actin and myosin slide past each other. The required calcium for…

Q: Which of the following alters the force of skeletal muscle contraction?  the frequency of…

A: Skeletal muscle contraction refers to the process, that when a motor neuron signals a skeletal…

Q: 17) Under aerobic metabolism, and produce ATP for which the process is carried out inside the water;…

A: Introduction:- The human body uses glucose to make adenosine triphosphate (ATP) molecules during the…

Q: How effective is aerobic exercise as a way to manage stress and improvewell-being?

A: Aerobic exercise is any physical activity of low to moderate intensity, such as jogging, cycling,…

Q: "We all have mental health." What does this mean? What are the benefits of exercise for our mental…

A: Mental health has recently gained much importance in the overall well-being of an individual. We are…

Q: The power stroke in muscle contraction is the: Group of answer choices product of force and velocity…

A: The cells that make up muscle have the unique capacity to shorten or contract to cause movement of…

Q: Elite sprinters have a high concentration of muscle fibers with the fastest cross-bridge cycling and…

A: Different kinds of muscles are present in the body, which help in locomotion and movement. These…

Q: What is associated with the formation of a cross-bridge in skeletal muscle? ADP release from myosin…

A: Any movement requires the contraction of skeletal muscles. Muscles contain actin and myosin…

Q: The higher the frequency of action potentials, the higher amount of force produced in a muscle.…

A: An action potential is a change in the membrane potential of the neuron. This is caused due to…

Q: During exercise in a hot and humid environment, the inability of the body to lose excess heat…

A: Exercise in hot and humid environments poses challenges to the body's ability to dissipate excess…

Q: structured exercise program for aerobic training with no more than 6-7 exercises (must include…

A: Introduction  Aerobic (with oxygen) exercises helps in cardiovascular conditioning. The American…

Q: Changes in mitochondria, muscle fibers metabolic fuel in response to training

A: Training is a systematic way of enhancing performance over time. Different types of training involve…

Q: What happens when theoxygen supply is insufficientto maintain aerobic cellularrespiration during…

A: Cellular respiration is a combination of metabolic reactions that occurs in the cells of organisms.…

Q: Describe the effect of adding salts then ATP, ATP and then salts, and addition of ATP and salts…

A: Glycerianted muscle is the muscle in which calcium ion is not required of its contraction  The…

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: What does the term VO2max refer to? Draw a figure showing changes in VO2 over increasing intensity…

A: It is an important measure of an individual's cardiorespiratory fitness and endurance, as it…

Q: Which of the following is not likely to result from endurance training alone?a. Increase in…

A: Endurance training is defined as training with a large increase in the frequency of motor unit…

Q: Shown below are changes that occur in skeletal muscle during vigorous physical activity.  For each…

A: Answer 1:  ↓ Po2 - decreased HbO2 saturation, decreased free O2

Q: complete tetanus    Has increased muscle length with no change in tension.   eccentric…

A: The contraction of the muscle generates a force called as muscle tension. There is also generation…

Q: Match the word in the word box with the following definition this type of stretching involves…

A: Stretching is a form of activity necessary for body movement. This has various phases and forms. It…

Q: Which of the following correctly states the importance of an action potential to muscle contration?…

A: Muscle contraction helps in the movement of muscles. It causes the muscle fibers to contract to…

Q: In order to help prevent hypoglycemia (reduced blood glucose concentration) during exercise,…

A: Glucose is considered as the body's major source of energy. Hypoglycemia is a condition where the…

Q: As the duration of a maximal effort increases from 10 seconds or less to between 10 and 180 seconds,…

A: Does factor become limiting in terms of energy production:

Q: A primary mechanism of fatigue during a short-duration (10 seconds), high-intensity exercise is…

A: Fatigue during focused energy exercise might become more greater because of the deficiency of…

Q: On the diagram below, the fat burning zone is at a fairly low exercise intensity. Describe why the…

A: Metabolism refers to all the biochemical reactions that are responsible for the proper functioning…

Q: Which of the following is the advantage to training maximal power production with power lifts? The…

A: A learning curve is a graphical representation of how an individual learns. It typically shows how…

Q: high levels of Pi and no other metabolites, what would you observe

A: Muscle fatigue is a common complaint in clinical practice in humans. Muscle fatigue is known as an…

Q: Contrast the “classic” method of achieving a supercompensation of the muscle glycogen stores with…

A: Glycogen could be a multibranched saccharide of aldohexose that is a style of energy storage in…

Q: What is the relationship between exercise and muscle

A: In response to various stimuli when the size of the cells increases, the condition is called…

Q: Which of the following is NOT correct regarding muscle contraction? A neurotransmitter is released…

A: A muscle is composed of a group of muscle fibers, and the plasma membrane of the muscle fiber is…

Q: Which of the following summarizes the role of calcium in muscle contraction? opens the binding sites…

A: The actin's active-binding sites are made visible by calcium ions attaching to the protein complex…

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: Humming birds and rattlesnakes can contract and relax skeletal muscle very quickly, i.e. in 10-20…

A: In all vertebrates three major types of muscles are present. These are- cardiac muscles, smooth…

Q: Which one of the following statements is the best description of a motor unit?     A single…

A: Motor unit is defined as a single motor neuron and all of the muscle fibers it innervates.

Q: Which of the following is NOT a microscopic change associated with strength training? increased…

A: Strength training is practiced to increase the endurance of a person. To do this, an outside…

Q: Which of the following factors can help to increase contractile force? small load large muscle…

A: Introduction Muscle contraction is defined as the tightening, shortening, or lengthening of muscles…

Q: We control muscle force using motor unit recruitment. When we recruit more motor units, what is…

A: The process of activating different motor units to achieve a specific level and kind of muscular…