SPH K409

Indiana University-Bloomington

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K409 -EXAM 3 Final Test Questions and All Accurate Solutions 2025-2026 Updated.
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29

mei 2026

2025/2026

A+
What is the Overload Principle? - Answer Physiological systems exist primarily in a state of equilibrium. For adaptation to occur, the system must be overloaded. Adaptations allow the body to best be able to handle the specific stimuli (i.e. exercise) Overload can be controlled by manipulating combinations of training like: - Answer - frequency - intensity - mode - duration - density - recovery What is the Specificity Principle? - Answer the adaptation of the body or...
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k409- FINAL EXAM AND CORRECT ANSWERS.
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23

mei 2026

2025/2026

A+
An individual with 70% type II fibers can lift more weight than an individual with 50% Type II Fibers. T/F? - Answer False What are the two different types of Muscle Fibers? - Answer Slow Twitch and Fast Twitch What determines the type of muscle fibers? - Answer Determined based on the action/speed of the contraction done Fiber Type alone does NOT predict success. T/F? - Answer True Which Fast Twitch is the primary state? - Answer FTx (which take on char...
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SPH-K409- Exam 2 Questions Fully Solved.
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5

mei 2026

2025/2026

A+
a subject with eyes closed, repeated contracts a muscle until fatigue occurs. When the eyes are opened, tension is restored. This experiment is a demonstration of fatigue being related to which of the following sites? - Answer central nervous system fatigue refers to - Answer an inability to maintain power output during repeated contractions which of the following has been shown to interfere with cross-bridge "cycling" during exercise? - Answer an accumulation of H+...
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SPH-K 409: Exam III Study Guide Questions with Actual Detailed Answers.
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17

mei 2026

2025/2026

A+
Body temperature is a balance between ___ and ___. - Answer heat gain, heat loss Heat gain is due to ___ and ___. - Answer environment, metabolic heat production Heat loss is due to four factors: ___, ___, ___, and ___. - Answer conduction, convection, radiation, evaporation conduction - Answer heat transfer due to contact with another object convection - Answer heat transfer due to a movement of a fluid past your body (air temperature greater than body ...
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SPH-K 409: Final Exam Questions and All Correct Answers 2025-2026 Updated.
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14

mei 2026

2025/2026
What are the contractile speeds of Type I, Type IIa, and Type IIx fibers? - Answer Type I- 110 ms (slowest) Type IIa- 50 ms Type IIx- 50 ms What skeletal muscle fiber type has the weakest motor unit force? - Answer -Type I What skeletal muscle fiber type has the strongest motor unit force? - Answer -Type IIx What skeletal muscle fiber has the smallest motor neuron size? - Answer Type I What skeletal muscle fiber has the largest motor neuron size? - Answe...
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SPH K 409: Exam 2 Test Questions With Complete Answers.
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12

mei 2026

2025/2026

A+
Cardiovascular path through the heart - Answer right atrium --> right ventricle --> pulmonary artery --> lungs --> left atrium --> left ventricle --> aorta --> systemic circulation Path of electrical conduct in the heart - Answer 1. SA Node (located in right atrium) depolarizes. Creates action potential. Intrinsic pacemaker. 2. electrical impulse spreads through both right and left atria 3. atria contract 4. impulse reaches AV node 5. impulse travels thro...
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SPH-K409: Test Questions and All Correct Answers.
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5

mei 2026

2025/2026

A+
circumstances helps increase enzyme activity in a muscle? - Answer o Increased substrate concentration o Increase temperature up to 37 degrees Which of the following statements is true concerning the cell membrane? - Answer Always negative The primary mechanism responsible for maintaining the resting membrane potential of a neuron - Answer active pumping of sodium and potassium ions across the neuronal membrane by the sodium-potassium pump the speed of a neural impuls...
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K409: Exam 2 Study Guide Questions and Correct Answers.
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4

mei 2026

2025/2026

A+
What is cardiovascular drift? - Answer phenomenon where some cardiovascular responses begin a time dependent change, or "drift" after around 10 minutes of exercise in a warm or neutral environment without an increase in workload. Understand how acute exercise effects the cardiovascular system (SV, Q, a-VO2, BP, blood flow redistribution, etc.) - Answer stroke volume: increases during with intensity (40-60%) - supine position increases SV b/c gravity eliminated cardiac ou...
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K409 -Final Exam Questions and All Correct Answers.
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11

mei 2026

2025/2026

A+
Muscle proteins synthesis is controlled in large part by an enzyme called mTOR. Indicate whether the condition below would increase mTOR activity, decrease mTOR activity, or have essentially no change: eating high fat meal - Answer Decrease Muscle proteins synthesis is controlled in large part by an enzyme called mTOR. Indicate whether the condition below would increase mTOR activity, decrease mTOR activity, or have essentially no change: increasing pre-workout protein intake from 30g t...
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K409 - Homework #5 (Exam 3)And All Correct Answers.
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2

mei 2026

2025/2026

A+
Using bioelectrical impedance analysis (BIA)to determine body composition, the results will be affected if the person... A. is dehydrated B. holds their breath C. is an amputee D. tenses their muscles during the measurement - Answer A Why is severe calorie restriction a poor strategy for sustained, long term weight loss? A. it can lead to anemia B. it causes a reduction in resting metabolic rate C. it causes a sever reduction in growth hormone secretion D. it can lead to di...
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