BACKGROUND Fatigue is recognized as a disabling symptom in many chronic conditions including rheumatic disorders such as rheumatoid arthritis (RA) and lupus. Fatigue in osteoarthritis (OA) is not routinely evaluated and has only been considered in a very limited number of studies. To date, these studies have focused primarily on patients with OA under rheumatological care, which represent the m...

OBJECTIVE We evaluated a variety of non-invasive physiological technologies and a series of test approaches for examination of aviator performances under conditions of mental workload in order to provide a standard real-time test for physiological and psychological pilot fatigue assessments. METHODS Twenty-one male aviators were selected for a simulated flight in a hypobaric cabin with artifi...

Our eyes are always in motion. Even during periods of relative fixation we produce so-called 'fixational eye movements', which include microsaccades, drift and tremor. Mental fatigue can modulate saccade dynamics, but its effects on microsaccades and drift are unknown. Here we asked human subjects to perform a prolonged and demanding visual search task (a simplified air traffic control task), w...

In everyday life, mental fatigue can be detrimental across many domains including driving, learning, and working. Given the importance of understanding and accounting for the deleterious effects of mental fatigue on behavior, a growing body of literature has studied the role of motivational and executive control processes in mental fatigue. In typical laboratory paradigms, participants complete...

Chronic fatigue syndrome (CFS) is characterized by disabling fatigue that significantly interferes with a person’s ability to carry out their normal daily activities. The core symptoms of CFS are: • physical and mental fatigue exacerbated by physical and mental exertion • cognitive impairment • disturbed sleep patterns • musculoskeletal pain • headaches. Levels of fatigue may fluctuate excessiv...

INTRODUCTION The effect of regular gum chewing on psychological status is unknown. The purpose of this study was to examine the effect of gum chewing for fourteen days on psychological status and physical and mental fatigue in healthy young adults. METHODS We assigned 50 volunteers randomly to an intervention group (n = 26) and a control group (n = 24). Participants in the intervention group ...

EFFECTS OF MILD DEHYDRATION ON THERMOREGULATION, PERFORMANCE AND MENTAL FATIGUE DURING AN ICE HOCKEY SCRIMMAGE Mark Edward Linseman Advisor: University of Guelph, 2011 Professor L.L. Spriet This study investigated the effects of progressive dehydration by 1.5-2.0% body mass (BM) (NF) on core temperature (Tc), heart rate (HR), on-ice performance, and mental fatigue during a 70-min scrimmage, com...

OBJECTIVES (1) To explore moderators of the effects of home-based exercise on reductions in physical and mental fatigue scores in postpartum depressed women and (2) to explore mediators of the intervention on changes in physical fatigue. METHOD Eighty-eight women in the postpartum period (4-38 weeks) obtaining a score >or=10 on the Edinburgh Postnatal Depression Scale were randomly assigned t...

BACKGROUND The health status of employees with chronic hepatitis C has major implications for organizations and labour market. OBJECTIVES To assess the effects of Acetyl-L-Carnitine administration on work productivity, daily activity, and fatigue in subjects with chronic hepatitis C treated with Pegylated-Interferon-α2b and Ribavirin. PATIENTS AND METHODS In this prospective, randomized, pl...

PURPOSE Fatigue is a devastating state of body and mind associated with distress at the end of life. We report the results of the third in a series of papers outlining a novel approach we have developed for understanding the meaning of fatigue by exploring how this meaning is shaped by beliefs and values. The aims of the study were to examine the perception and experiences of fatigue held by pa...