Exercise Physiology Class Quiz

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Questions and Answers

What is a primary focus of exercise physiology?

Understanding psychological effects of exercise

Developing exercise equipment

Analyzing nutritional requirements of athletes

Measuring human energy expenditure (correct)

Which of the following best describes homeostasis?

The body's increase in energy expenditure during exercise

The body's adaptation to extreme temperatures

The maintenance of internal stability despite external changes (correct)

The gradual improvement of physical fitness levels

What is the purpose of ergometry in exercise physiology?

To measure time taken to complete various exercises

To evaluate cardiovascular stress during inactivity

To assess power output and total work performed (correct)

To analyze muscle recovery post-exercise

How can exercise affect the body's homeostasis?

It enhances the body's ability to maintain stability Signup and view all the answers

What is the key difference between homeostasis and steady state?

Homeostasis is maintained at rest, steady state occurs during exercise. Signup and view all the answers

What is the total percentage of the course evaluation based on lab work?

50% Signup and view all the answers

What is required for full marks in the formal lab report?

Equal partner participation Signup and view all the answers

When must extension requests be submitted for weekend due dates?

By 4PM on the preceding Friday Signup and view all the answers

How will late or missed assessments be treated according to the class policies?

They will not be accepted Signup and view all the answers

What is emphasized in the interactive classes of this course?

Exploration through collaborative learning Signup and view all the answers

What percentage is allocated to the midterm test in the overall evaluation plan?

25% Signup and view all the answers

What must all ISP accommodations be provided to the professor by?

January 17th Signup and view all the answers

Which statement about in-class assessments is correct?

You must be present in class to submit them Signup and view all the answers

What is the primary definition of muscular strength?

The maximal force that can be generated by a muscle in a single contraction Signup and view all the answers

Which factor does NOT influence the ability of a muscle to generate force?

Training duration Signup and view all the answers

What does a 1-repetition maximum (1-RM) test primarily evaluate?

Maximum weight lifted in one complete repetition Signup and view all the answers

How is muscular strength related to muscular endurance?

Increased muscular strength results in improved muscular endurance Signup and view all the answers

What is a genetic limitation of strength potential?

The maximum force generation a muscle can achieve Signup and view all the answers

What is the purpose of performing a warm-up at 40-60% of 1-RM?

To estimate maximum strength more accurately Signup and view all the answers

If an individual performs 8 repetitions at 100 lbs, what percentage of their 1-RM are they lifting?

80% 1-RM Signup and view all the answers

What should be done if the individual can perform more than 10 repetitions at the initial weight?

Increase the weight and repeat the exercise Signup and view all the answers

What is the next step after determining the weight lifted and the percentage of 1-RM?

Calculate the 1-RM using the weight divided by the percentage Signup and view all the answers

In a 6-10 RM test, what should the individual do after performing a set at 60-80% of estimated 1-RM?

Rest for 3-5 minutes before adjusting weight Signup and view all the answers

How is the 1-RM calculated after determining that the individual performed 8 repetitions?

By dividing the weight lifted by 0.8 Signup and view all the answers

What does a performance of 10 repetitions at 90 lbs indicate about the individual's strength?

They are at approximately 75% of their 1-RM Signup and view all the answers

Why is it necessary to calculate the 1-RM using a chart after performing repetitions?

To identify the individual's maximum lifting capacity Signup and view all the answers

What is the primary distinguishing factor of muscular endurance?

Ability to perform repeated contractions against a submaximal load Signup and view all the answers

Which exercise would best evaluate muscular endurance?

Isometric plank test Signup and view all the answers

How can muscular endurance be improved?

Increasing the number of repetitions with moderate loads Signup and view all the answers

What is a common characteristic of muscles with low endurance capacity?

They fatigue rapidly Signup and view all the answers

Which factor contributes to muscular power according to the definition provided?

The combination of strength and speed of movement Signup and view all the answers

Which fiber type is considered best for power athletes?

Type IIX (Fast Glycolytic) Signup and view all the answers

In a relative load endurance test, how is the weight determined?

It is based on the individual's maximum lift potential. Signup and view all the answers

What defines a dynamic endurance test?

Lifting a set weight at a set cadence. Signup and view all the answers

What happens to muscular power after reaching its maximum point?

It decreases due to reduced force at higher speeds. Signup and view all the answers

During a cycling exercise, what is the effect of gearing down too much?

Speed increases without much resistance leading to decreased power. Signup and view all the answers

What is aerobic power primarily a measure of?

Energy production with oxygen consumption. Signup and view all the answers

How is power calculated in terms of work and time?

Power = Work ÷ Time Signup and view all the answers

What is an ergometer used for?

To measure work output. Signup and view all the answers

In the example of a bench step ergometer calculation, what is the primary force applied?

The subject's body weight. Signup and view all the answers

What physiological condition does homeostasis refer to?

Maintenance of a constant internal environment. Signup and view all the answers

What is the primary role of insulin in the body?

To promote cellular uptake of glucose. Signup and view all the answers

How is work defined in physical terms?

Work = Force x Distance Signup and view all the answers

What does a maximum VO2 test measure?

Aerobic capacity. Signup and view all the answers

What is the significance of a steady state in physiology?

It shows balance between physiological demands and body response. Signup and view all the answers

In a cycle ergometer test, how is work determined?

Through the calculation of force and distance covered. Signup and view all the answers

What happens to power as the speed of movement increases beyond a muscle's peak power output?

Power decreases due to lower force production. Signup and view all the answers

Which of the following correctly describes anaerobic power?

Involves the body’s ability to generate ATP without oxygen. Signup and view all the answers

Study Notes

Welcome to Exercise Physiology (FTHP 212)

Course is FTHP 212
Weekly lectures will include in-class work and discussions (lecture and practically-based)
There are 5 lab assignments; one will be a formal lab report
Equal partner participation required for full marks in labs

Course Expectations

Labs: 5 labs in total, 1 as a formal report, equal partner participation required
Lectures: Weekly lectures, in-class work and discussions, both lecture and practical-based

Interactive Classes

Focuses on the development of thoughts and experiences through movement, not just the science of exercise
Uses a variety of learning styles
Emphasizes the practical application of the content
Collaborative learning environment expected

Evaluation Plan

Labs: 50% (4 x 7.5% + 1 x 20%)
Midterm Test: 25%
Final Test: 25%

Course Outline

Extension requests must be received 48 hours before the due date (or 4PM Friday before weekend due dates)
Late/missed assessments are not accepted (grade of 0%)

Week 1 - Introduction to Exercise Physiology

Discuss the scope of exercise physiology as a branch of physiology
Define key terms
Describe ergometry and the two ways to measure human energy expenditure
Calculate total work and power output during various forms of exercise
Compare and contrast homeostasis and steady state
Introduce biological homeostasis control with examples

Defining Muscular Performance: Strength

Maximal force produced in a single muscle contraction (1-RM or 1-Repetition Maximum)
Directly associated with muscular endurance
Corresponding increase in endurance with increased strength

Evaluating Strength: Predicting 1-RM

2-5 RM test, 6-10 RM tests can predict 1-RM
Procedure is similar but calculations may differ

Defining Muscular Performance: Muscular Endurance

Body's ability to remain contracted or contract repeatedly against a submaximal load
Improved by using a moderate load and increasing repetitions
Muscle fatiguing rapidly = low endurance capacity

Defining Muscular Performance: Muscular Power

Product of strength and speed of movement
Higher movement speed = higher power output
Power = Force x Velocity (distance/time)
Power athletes benefit from type IIA (FO) or type IIX (FG) muscle fibers.

Power: Inverted ‘U' Relationship

Power initially increases with increasing force and speed of movement, then decreases with faster speeds due to reduced force.
There is an optimal speed for maximal power output.

Aerobic and Anaerobic Power

Aerobic Power: Oxygen consumption, measuring cardiovascular fitness (maximal aerobic power), Max VO2 test
Anaerobic Power: Body's ability to produce ATP without oxygen, Wingate bike test

Work and Power Defined

Work = Force x Distance (measured in Joules (J) or Newton-meters (N.m))
Power = Work/Time (measured in Watts (W))

Ergometry

Measurement of Work Output
Devices used to measure work (e.g., bench step, cycle, arm ergometers, treadmills)
Examples Provided for specific Ergometer calculation in one case study

Homeostasis and Steady State

Homeostasis: Maintaining constant internal environment (e.g., temperature)
Steady State: Physiological variable is unchanging but not necessarily "normal"

Biological Homeostatic Control

Regulation of body temperature (thermal receptors, skin blood vessels, sweat glands)
Regulation of blood glucose (hormone insulin, pancreas signaling)

Coming Up

Next week: Adaptations and principles of resistance training
Upcoming assessments
Lab #1 in Week 4

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Description

Test your understanding of key concepts in exercise physiology, including homeostasis, ergometry, and assessment policies. This quiz covers topics that are essential for mastering the subject and understanding the course evaluation structure.