Chronic Physical Activity and Feelings of Energy and Fatigue

Department of Exercise Science, University of Georgia, Athens, GA 30602, USA.
Medicine & Science in Sports & Exercise (Impact Factor: 3.98). 03/2005; 37(2):299-305. DOI: 10.1249/01.MSS.0000152802.89770.CF
Source: PubMed


This brief review summarizes key epidemiological and experimental evidence concerning relationships between chronic physical activity and feelings of energy (vigor, vitality) and fatigue. The epidemiological studies show a positive association between the amount of typical weekly physical activity reported and the frequency with which people report feeling energetic. The randomized controlled experiments show that 10-20 wk of exercise training is associated with an increase in the frequency and intensity of feelings of energy among fatigued people with medical conditions. The results of longitudinal studies with non-fatigued, healthy adults are mixed. Overtraining by athletes is associated with increased intensity of feelings of fatigue. Additional well-controlled investigations into relationships between physical activity and feelings of energy and fatigue, especially among sedentary and fatigued individuals, are warranted given the available evidence and the importance of these moods to health, work productivity, and quality of life.

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Available from: Timothy W Puetz, May 12, 2015
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    • "It follows then that studying positive affect in the context of specific PA sessions is an outcome worthy of investigation in its own right, and this within broader attempts to understand how to optimally predict sustainable patterns of PA behaviour for successful weight management and greater well-being. However, experts have highlighted that not all individuals who participate in PA achieve more positive affective states and ensuing increments in general well-being [8]. Indeed, results have not been entirely consistent as some participants have witnessed no change or a worsening of their affect with exercise [9]. "
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    ABSTRACT: There is evidence that affective experiences surrounding physical activity can contribute to the proper self-regulation of an active lifestyle. Motivation toward physical activity, as portrayed by self-determination theory, has been linked to positive affect, as has the intensity of physical activity, especially of a preferred nature. The purpose of this experimental study was to examine the interaction between situational motivation and intensity [i.e., ratings of perceived exertion (RPE)] in predicting changes in positive affect following an acute bout of preferred physical activity, namely, running. Fourty-one female runners engaged in a 30-minute self-paced treadmill run in a laboratory context. Situational motivation for running, pre- and post-running positive affect, and RPE were assessed via validated self-report questionnaires. Hierarchical regression analyses revealed a significant interaction effect between RPE and introjection (P < .05) but not between RPE and identified regulation or intrinsic motivation. At low levels of introjection, the influence of RPE on the change in positive affect was considerable, with higher RPE ratings being associated with greater increases in positive affect. The implications of the findings in light of SDT principles as well as the potential contingencies between the regulations and RPE in predicting positive affect among women are discussed.
    Full-text · Article · Jun 2012 · Journal of obesity
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    • "However, it is plausible that the association between accuracy of perceived exertion and vitality is a function of the amount or intensity of physical activity that people engage in during their daily lives. Amount of free-living physical activity or energy expenditure is positively associated with greater perceived energy or vitality [19–21] and inversely associated with RPE [3]. The intensity of free-living activity, in addition to the amount of free-living activity, might also be important, with less intense free-living activity being associated with higher RPE during exercise [22]. "
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    ABSTRACT: Objective. We investigated whether perceived exertion, in comparison to the physiological response to exercise, was associated with self-reported vitality, mental health, and physical function during daily activities, or weight control behaviors. Design. Weight-reduced, formerly overweight women (n = 126, aged 22–46 years), completed health and dietary control questionnaires, and underwent a treadmill-walking task while heart rate, ventilation, respiratory exchange ratio, and ratings of perceived exertion were recorded. Results. Overperception of exertion (perceived exertion physiological exertion) was inversely associated with vitality (r = −0.190, P < .05), mental health (r = −0.188, P < .05), and dietary control (r values range −0.231 to −0.317, P < .05). In linear regression modeling, vitality or mental health, and cognitive dietary restraint were independently associated with accuracy of perceived exertion, independent of age, ethnicity, and engagement in exercise during weight loss. Each model explained 7%-8% of the variance in accuracy of perceived exertion. Conclusion. Women with low vitality or poor mental health, and poor dietary control may overperceive exertion. Such overperception may be a barrier to engage in physical activity and thus increase susceptibility to weight gain.
    Full-text · Article · Sep 2010 · Journal of obesity
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    • "There is growing interest in the relationship between selfreported feelings of fatigue and physical activity. Much evidence supports the positive effects of regular physical activity on alleviating symptoms of fatigue [75] [76] [77] [78]. Physical activity has been inversely associated with reported fatigue levels in diverse populations, including patients with cancer [79], rheumatoid arthritis [80], and chronic diseases, including diabetes and hypertension [81]. "
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    ABSTRACT: Fatigue is a common and distressing complaint among people with diabetes and likely to hinder the ability to perform daily diabetes self-management tasks. A review of the literature about diabetes-related fatigue was conducted with an eye toward creating a framework for beginning to conduct more focused studies on this subject. A literature search containing the terms diabetes, fatigue, tiredness, and symptoms was conducted to search for literature that addressed diabetes-related fatigue. Diabetes presents many potential pathways for fatigue, but focused studies on this symptom are rare. Furthermore, research on diabetes-related fatigue is limited by fatigue's nonspecific symptoms and because fatigue researchers have yet to agree on standardized definition, measurement, or diagnostic criteria. Additionally, few diabetes randomized clinical trials included measurement of patient-reported outcomes, such as symptoms or health-related quality of life in their study designs, although one that did provided some meaningful finding that symptom-focused education improved self-management practices, Hb(A1c) levels, quality of life, and symptom distress. There is a need to standardize the definition, measurement, and diagnostic criteria of fatigue in diabetes. We present a model that can guide focused studies on fatigue in diabetes. The model capitalizes on the multidimensional phenomena (physiological, psychological, and lifestyle) associated with fatigue in diabetes.
    Full-text · Article · Jul 2010 · Journal of psychosomatic research
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