Physical Work and Effort

Physical Work and Effort is a collection of papers presented at the Proceedings of the First International Symposium held at Stockholm on December 2-4, 1975.
This book deals with the investigations done on the clinical physiology of work and effort. This text discusses interdisciplinary measures conducted by psychologists and physiologists on both theoretical and clinical issues. Part 1 discusses basic theories; methods and results that can be found in studies relating to fatigue; visual perception; and stress that includes a simple method of rating these estimates of perceptions. Part 2 evaluates differential and developmental problems such as sex, heart rates, and the differences found in aerobic function related to childhood daily physical activities. Part 3 covers topics on clinical and applied studies such as ECG changes in asymptomatic men; perceived pain during tread-mill exercise; and changes in heart rate during work exertion or when driving under traffic conditions. Part 4 evaluates the psychophysiological intercorrelations from a series of experiments and concludes that two factors are present in the perception of exertion during physical work-the local factor and a central factor.
The book also includes the use of a model to evaluate the perceived ratings of these two factors. Psychologists, physiologists, physical therapists, physiotherapists, and scientists involved in work improvement will find this book very valuable.

Contenu

Invited Contributors
Preface
Opening Address
General Introduction
Symposium on Physical Work and Effort
Basic Theories, Methods and Results
Physiological Factors in Fatigue
Visual Perception and Stress
Simple Ratings Methods for Estimation of Perceived Exertion
Versatility of the Constant-effort Procedure
A Work Test Based on Preferred Settings
The Influence of Air Pollutants (CO and O3) on Behavior and Sub-maximal and Maximal Work Performance
Genetic and Environmental Variation in Perceived Exertion and Heart Rate during Bicycle Ergometer Work
Perception of Mechanical Factors in Breathing
Aging, Information Processing and Fitness
An Experimental Study on Physical Fitness Related to Information Processing in Elderly People
Buildup of Fatigue in Static Work: Role of Blood Flow
The Effects of Fatigue on the Perception of Muscular Effort
Aspects of the Validity of Borg's Scale. Is it Measuring Stress or Strain?
Differential and Developmental Problems
On the Assessment of Physical Work Stress
The Effect of Age and Sex on the Perception of Exertion during an Exercise Test with a Linear Increase in Heart Rate
Heart Rate Controlled Ergometry and its Application
A Comparison between Two Work Tests Controlled Subjectively and by Heart Rate
Age-related Changes in Exercise Perception
Perception of Effort in Selected Samples of Olympic Athletes and Soldiers
Differences in Maximal Aerobic Power Related to the Daily Physical Activity in Childhood
Discussion on Differential and Developmental Problems
Clinical and Applied Studies
Studies of Perceived Exertion Rate on Bicycle Ergometer in Conditions Reproducing Some Aspects of Industrial Work (Shift Work; Noise)
Frequency of Ischemic Exercise ECG changes in Asymptomatic Men with Primary Hyperlipidaemia Evaluated with Heart Rate Controlled Ergometry
Estimation of Perceived Pain during Tread-mill Testing of Patients with Obliterative Arterial Disease of the Lower Limbs
Heart Rate and Perceived Exertion in Simulated Work with High Heat Stress
Effort in Driving as a Traffic-safety Problem
Perceived Exertion of Dynamic Exercise in Normal Subjects and Patients Following Leg Injury
Exercise Performance and Perceived Exertion in Patients after Myocardial Infarction
Discussion on Clinical and Applied Studies
Psychophysiological Intercorrelations
Psychological and Physiological Factors Influencing Perceived Exertion
Oxygen Breathing, Selected Physiological Variables and Perception of Effort during Sub-maximal Exercise
Psychophysiological Interactions Leading to Increased Effort, Leg Fatigue, and Respiratory Distress during Prolonged, Strenuous Bicycle Riding
General Discussion
Editor's Note
In the Interests of Rapid Publication, no Author or Subject Indexes are Included in this Volume