Fatigue is a common complaint defined as a feeling of tiredness and lack of energy. It can be acute or chronic lasting over 6 months. The document discusses the causes, evaluation, and management of fatigue. Psychological factors are involved in most cases of chronic fatigue. Evaluation involves taking a thorough history and physical exam to rule out underlying medical conditions. Treatment focuses on treating any identified causes, cognitive behavioral therapy, exercise, and antidepressants may help relieve symptoms in some cases. Chronic fatigue syndrome is a diagnosis of exclusion defined by persistent fatigue and additional symptoms lasting over 6 months. Its cause is unclear but may involve infections, immune dysfunction, or sleep disturbances.
Fatigue is a physical and/or mental state of being tired and weak that is characterized by a desire to sleep, lack of concentration, and impaired mental functioning. If left untreated, fatigue can increase the risks of heart disease, mental illnesses, and premature birth. To prevent fatigue, one should avoid energy draining activities, exercise regularly, snack frequently, get good sleep, manage stress through activities like listening to music, and eat a balanced diet.
This document discusses an alternative model for preventing strain and sprain injuries called the "positive deviant" model. It notes that a small percentage of the population is consistently uninjured and high performing, and examines what they do differently in their movement patterns and behaviors. Specifically, it highlights that positive deviants demonstrate superior balance in gravity for all actions, and trusts their kinesthetic awareness to self-correct discomfort before injury occurs. The document proposes training workers to develop these skills and reprogram their motor cortex through accelerated motor learning techniques. This aims to shift more people to the injury-free side through self-awareness, decision making, and optimal movement patterns.
This document discusses two philosophical streams in occupational health and safety - the Egocentric Stream and the Ergonomic Stream. The Egocentric Stream, which began developing in the 1920s, focuses on human behavior, training, and procedures. The Ergonomic Stream, which began in the 1950s, takes a more scientific approach and focuses on engineering solutions to reduce workplace injuries. The author argues that organizations cannot avoid being part of one of these two streams. Readers must decide which stream they will align with, as the streams cannot be integrated and have different impacts on injury prevention.
Fatigue is a common complaint defined as a feeling of tiredness and lack of energy. It can be acute or chronic lasting over 6 months. The document discusses the causes, evaluation, and management of fatigue. Psychological factors are involved in most cases of chronic fatigue. Evaluation involves taking a thorough history and physical exam to rule out underlying medical conditions. Treatment focuses on treating any identified causes, cognitive behavioral therapy, exercise, and antidepressants may help relieve symptoms in some cases. Chronic fatigue syndrome is a diagnosis of exclusion defined by persistent fatigue and additional symptoms lasting over 6 months. Its cause is unclear but may involve infections, immune dysfunction, or sleep disturbances.
Fatigue is a physical and/or mental state of being tired and weak that is characterized by a desire to sleep, lack of concentration, and impaired mental functioning. If left untreated, fatigue can increase the risks of heart disease, mental illnesses, and premature birth. To prevent fatigue, one should avoid energy draining activities, exercise regularly, snack frequently, get good sleep, manage stress through activities like listening to music, and eat a balanced diet.
This document discusses an alternative model for preventing strain and sprain injuries called the "positive deviant" model. It notes that a small percentage of the population is consistently uninjured and high performing, and examines what they do differently in their movement patterns and behaviors. Specifically, it highlights that positive deviants demonstrate superior balance in gravity for all actions, and trusts their kinesthetic awareness to self-correct discomfort before injury occurs. The document proposes training workers to develop these skills and reprogram their motor cortex through accelerated motor learning techniques. This aims to shift more people to the injury-free side through self-awareness, decision making, and optimal movement patterns.
This document discusses two philosophical streams in occupational health and safety - the Egocentric Stream and the Ergonomic Stream. The Egocentric Stream, which began developing in the 1920s, focuses on human behavior, training, and procedures. The Ergonomic Stream, which began in the 1950s, takes a more scientific approach and focuses on engineering solutions to reduce workplace injuries. The author argues that organizations cannot avoid being part of one of these two streams. Readers must decide which stream they will align with, as the streams cannot be integrated and have different impacts on injury prevention.
Presented by: Hans Key, WorkSafe NZ
Moni Hogg, Health and Safety Consultant
and Natia Tucker, Pasifika Injury Prevention Aukilana
at OHSIG 2014, Wednesday 10/9/14, NZI Room 4, 11.45am
Video URLs:
Say Yeah, Nah community education: www.youtube.com/watch?v=shte582z3fo
Puataunofo: www.youtube.com/watch?v=rXQqmOfoR6o
The document discusses Safety in Design (SiD) for industries in New Zealand. It outlines what SiD is, which is a collaborative lifecycle approach to identify hazards and risks and implement control measures at the design stage. The presentation notes that an estimated 40% of fatalities could have been prevented through SiD. It also discusses the changing legislative environment in New Zealand that is pushing for more formal and regulated SiD processes. The summary concludes that implementing SiD can help reduce potential injuries and harm, lower whole of life costs, and ensure compliance with new health and safety legislation.
It’s not only our muscles that get tired during intense exercise; our brains also experience fatigue. Fatigue is also a common and often debilitating symptom in many diseases. Join researcher Guillaume Millet for this webinar to hear key insights from his studies on both exercise-related and chronic fatigue. Learn about the factors that contribute to fatigue and how strategies like regular exercise can actually help alleviate it.
The document discusses sleep needs at different ages, sleep disorders, circadian rhythms, and the stages of sleep. Infants need 12-18 hours of sleep per night, children ages 5-10 need 10-11 hours, and teens and adults need 8-9 hours and 7-9 hours respectively. Sleep disorders include insomnia, sleep apnea, REM sleep behavior disorder, restless legs syndrome, and narcolepsy. Circadian rhythms regulate the sleep-wake cycle through exposure to light and darkness. Sleep cycles through NREM and REM stages with different brain wave patterns in each stage.
Not getting enough sleep, sleep apnea, and not eating enough or eating the wrong foods are common causes of fatigue. Sleep apnea involves brief interruptions in breathing during sleep that reduce sleep quality. Eating breakfast with protein and complex carbs provides sustained energy. Other potential causes of fatigue include anemia, depression, hypothyroidism, caffeine overload, urinary tract infections, diabetes, heart disease, food allergies, and chronic fatigue syndrome. Exercise can help fight mild fatigue not caused by an underlying condition.
1. The document discusses fatigue, which is structural damage that occurs when a material is subjected to cyclic loading below its tensile strength.
2. It describes how fatigue occurs through repeated loading and unloading causing microscopic cracks, and how factors like stress concentration, material properties, and the environment affect fatigue life.
3. The document outlines an experiment to determine the fatigue life of aluminum specimens under different stress levels using a fatigue testing machine. Results are analyzed to find the safe stress level for 1 million reversals.
Fatigue testing involves subjecting materials to repetitive loads or stresses to determine their fatigue life. There are two main types of fatigue testing: constant amplitude testing, where the stress level remains constant for each cycle, and variable amplitude testing, where the stress level varies each cycle. Fatigue testing can be done on standardized test specimens or actual components. Common machines used include rotating beam machines, where a stationary load bends a rotating specimen, creating repeated stresses. The results of fatigue testing are often displayed using an S-N curve to show the relationship between stress levels and the number of cycles before failure.
The document discusses sleep fundamentals including rest, sleep physiology, types of sleep, sleep cycles, sleep variations across age groups, and nursing interventions to promote sleep. It describes sleep as a state of relaxation and reduced perception, characterized by non-REM and REM sleep stages. Physiology involves electrophysiological, hormonal and neural processes. Nursing focuses on assessment, education, environmental factors and medications to enhance sleep.
This document summarizes the key points from a sleep presentation. It discusses what constitutes normal sleep, common sleep disorders like insomnia, sleep apnea, and consequences of abnormal sleep. It also covers how lifestyle factors like routines, medications, and naps can help improve sleep quality. Specific sections summarize findings on women's sleep, how their biology and life stages impact sleep, and the effects of poor sleep on health.
This document provides an overview of fatigue failure. It begins by defining fatigue as the premature failure or lowering of strength of a material due to repetitive stresses, even if they are below the material's yield strength. It then discusses key topics in fatigue such as stress cycles, S-N curves, fatigue testing, and factors that affect fatigue life. Crack initiation and propagation stages are described. Methods for improving fatigue performance, such as shot peening and removing stress concentrators, are also covered.
Presented by: Hans Key, WorkSafe NZ
Moni Hogg, Health and Safety Consultant
and Natia Tucker, Pasifika Injury Prevention Aukilana
at OHSIG 2014, Wednesday 10/9/14, NZI Room 4, 11.45am
Video URLs:
Say Yeah, Nah community education: www.youtube.com/watch?v=shte582z3fo
Puataunofo: www.youtube.com/watch?v=rXQqmOfoR6o
The document discusses Safety in Design (SiD) for industries in New Zealand. It outlines what SiD is, which is a collaborative lifecycle approach to identify hazards and risks and implement control measures at the design stage. The presentation notes that an estimated 40% of fatalities could have been prevented through SiD. It also discusses the changing legislative environment in New Zealand that is pushing for more formal and regulated SiD processes. The summary concludes that implementing SiD can help reduce potential injuries and harm, lower whole of life costs, and ensure compliance with new health and safety legislation.
It’s not only our muscles that get tired during intense exercise; our brains also experience fatigue. Fatigue is also a common and often debilitating symptom in many diseases. Join researcher Guillaume Millet for this webinar to hear key insights from his studies on both exercise-related and chronic fatigue. Learn about the factors that contribute to fatigue and how strategies like regular exercise can actually help alleviate it.
The document discusses sleep needs at different ages, sleep disorders, circadian rhythms, and the stages of sleep. Infants need 12-18 hours of sleep per night, children ages 5-10 need 10-11 hours, and teens and adults need 8-9 hours and 7-9 hours respectively. Sleep disorders include insomnia, sleep apnea, REM sleep behavior disorder, restless legs syndrome, and narcolepsy. Circadian rhythms regulate the sleep-wake cycle through exposure to light and darkness. Sleep cycles through NREM and REM stages with different brain wave patterns in each stage.
Not getting enough sleep, sleep apnea, and not eating enough or eating the wrong foods are common causes of fatigue. Sleep apnea involves brief interruptions in breathing during sleep that reduce sleep quality. Eating breakfast with protein and complex carbs provides sustained energy. Other potential causes of fatigue include anemia, depression, hypothyroidism, caffeine overload, urinary tract infections, diabetes, heart disease, food allergies, and chronic fatigue syndrome. Exercise can help fight mild fatigue not caused by an underlying condition.
1. The document discusses fatigue, which is structural damage that occurs when a material is subjected to cyclic loading below its tensile strength.
2. It describes how fatigue occurs through repeated loading and unloading causing microscopic cracks, and how factors like stress concentration, material properties, and the environment affect fatigue life.
3. The document outlines an experiment to determine the fatigue life of aluminum specimens under different stress levels using a fatigue testing machine. Results are analyzed to find the safe stress level for 1 million reversals.
Fatigue testing involves subjecting materials to repetitive loads or stresses to determine their fatigue life. There are two main types of fatigue testing: constant amplitude testing, where the stress level remains constant for each cycle, and variable amplitude testing, where the stress level varies each cycle. Fatigue testing can be done on standardized test specimens or actual components. Common machines used include rotating beam machines, where a stationary load bends a rotating specimen, creating repeated stresses. The results of fatigue testing are often displayed using an S-N curve to show the relationship between stress levels and the number of cycles before failure.
The document discusses sleep fundamentals including rest, sleep physiology, types of sleep, sleep cycles, sleep variations across age groups, and nursing interventions to promote sleep. It describes sleep as a state of relaxation and reduced perception, characterized by non-REM and REM sleep stages. Physiology involves electrophysiological, hormonal and neural processes. Nursing focuses on assessment, education, environmental factors and medications to enhance sleep.
This document summarizes the key points from a sleep presentation. It discusses what constitutes normal sleep, common sleep disorders like insomnia, sleep apnea, and consequences of abnormal sleep. It also covers how lifestyle factors like routines, medications, and naps can help improve sleep quality. Specific sections summarize findings on women's sleep, how their biology and life stages impact sleep, and the effects of poor sleep on health.
This document provides an overview of fatigue failure. It begins by defining fatigue as the premature failure or lowering of strength of a material due to repetitive stresses, even if they are below the material's yield strength. It then discusses key topics in fatigue such as stress cycles, S-N curves, fatigue testing, and factors that affect fatigue life. Crack initiation and propagation stages are described. Methods for improving fatigue performance, such as shot peening and removing stress concentrators, are also covered.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms for those who already suffer from conditions like anxiety and depression.