"Physical activity," "exercise," and "physical fitness" are terms that describe different concepts. However, they are often confused with one another, and the terms are sometimes used interchangeably. This paper proposes definitions to distinguish them. Physical activity is defined as any bodily movement produced by skeletal muscles that results in energy expenditure. The energy expenditure can be measured in kilocalories. Physical activity in daily life can be categorized into occupational, sports, conditioning, household, or other activities. Exercise is a subset of physical activity that is planned, structured, and repetitive and has as a final or an intermediate objective the improvement or maintenance of physical fitness. Physical fitness is a set of attributes that are either health- or skill-related. The degree to which people have these attributes can be measured with specific tests. These definitions are offered as an interpretational framework for comparing studies that relate physical activity, exercise, and physical fitness to health.

Physical activity, exercise, and physical fitness: definitions and distinctions for health-related research.

SUMMARYACSM Position Stand on The Recommended Quantity and Quality of Exercise for Developing and Maintaining Cardiorespiratory and Muscular Fitness, and Flexibility in Adults. Med. Sci. Sports Exerc., Vol. 30, No. 6, pp. 975-991, 1998. The combination of frequency, intensity, and duration of chr

http://myweb.facstaff.wwu.edu/chalmers/pdfs/acsm position stand - quantity and quality of exercise.pdf

ACSM Position Stand: The Recommended Quantity and Quality of Exercise for Developing and Maintaining Cardiorespiratory and Muscular Fitness, and Flexibility in Healthy Adults

A maximal multistage 20 m shuttle run test was designed to determine the maximal aerobic power of schoolchildren, healthy adults attending fitness class and athletes performing in sports with frequent stops and starts (e.g. basketball, fencing and so on). Subjects run back and forth on a 20 m course and must touch the 20 m line; at the same time a sound signal is emitted from a prerecorded tape. Frequency of the sound signals is increased 0.5 km h‐1 each minute from a starting speed of 8.5 km h‐1. When the subject can no longer follow the pace, the last stage number announced is used to predict maximal oxygen uptake (VO2max) (Y, ml kg‐1 min‐1) from the speed (X, km h‐1) corresponding to that stage (speed = 8 + 0.5 stage no.) and age (A, year): Y=31.025 + 3.238 X ‐ 3.248A + 0.1536.AX, r = 0.71 with 188 boys and girls aged 8–19 years. To obtain this regression, the test was performed individually. Right upon termination VO2 was measured with four 20 s samples and VO2max was estimated by retroextrap...

The multistage 20 metre shuttle run test for aerobic fitness

What is the cause of the ageing atrophy? Total number, size and proportion of different fiber types studied in whole vastus lateralis muscle from 15- to 83-year-old men

Maximal oxygen intake and nomographic assessment of functional aerobic impairment in cardiovascular disease

Find loads of the textbook of work physiology book catalogues in this site as the choice of you visiting this page. You can also join to the website book library that will show you numerous books from any types. Literature, science, politics, and many more catalogues are presented to offer you the best book to find. The book that really makes you feels satisfied. Or that's the book that will save you from your job deadline.

Textbook of Work Physiology

Our biological heritage -- The cell and its regulatory mechanisms -- The muscle and its contraction -- Motor function -- Body fluids, blood, and circulation -- Respiration -- Skeletal system -- Physical performance -- Evaluation of physical performance on the basis of tests -- Body dimensions and muscular exercise -- Physical training -- Nutrition and physical performance -- Temperature regulation -- Factors affecting performance -- Fatigue -- Applied sport physiology -- Applied work physiology -- Physical activity and health.

Textbook of work physiology : physiological bases of exercise

Maximal oxygen uptake in athletes

In April 1952, at the central gymnastic Institute (for the first time at this institute), P. – O. Astrand defended a thesis in order to gain the Doctor of medicine degree. This thesis is of great interest and the author´s summary of that part of the thesis, which deals with the suitability of school sporte for different ages and sexes, is given below.

Per-Olof Åstrand

Papers

Textbook of Work Physiology

Textbook of work physiology : physiological bases of exercise

Textbook of work physiology : physiological bases of exercise

Maximal oxygen uptake in athletes

Experimental studies of physical working capacity in relation to sex and age