At temperatures moderately below their glass transition temperature, the properties of many glass-forming materials can evolve slowly with time in a process known as physical aging whereby the thermodynamic, mechanical, and dynamic properties all drift towards their equilibrium values. In this work, we study the evolution of the thermodynamic and dynamic properties during physical aging for a m...

BACKGROUND Decreases in functional ability due to aging can impair work capacity and productivity among older workers. OBJECTIVE This study compares the sociodemographics, health conditions, and physical functioning abilities of young and old workers as well as correlates of physical functioning capacity with the work ability index (WAI). METHOD This exploratory, cross-sectional study exami...

Statistics of article page views is useful for measuring the impact of individual articles. Analyzing the temporal evolution of article page views, we find that article page views usually decay over time after reaching a peak, especially exhibiting relaxation with nonexponentiality. This finding suggests that relaxation in article page views resembles physical aging as frequently found in compl...

Sociodemographic changes have led to an increase of aging in the society [1]. The biological and physiological changes of aging are primarily associated with a decline in muscle mass ranging from 1% to 2% per year past the age of 50, strength, endurance, and the inability to maintain balance [2]. Furthermore, the prevalence and incidence of cardiovascular diseases, diabetes mellitus, osteoarthr...

Aging has been associated with a reduced muscle protein synthetic response to protein intake, termed "anabolic resistance." Physical activity performed before protein intake increases the use of protein-derived amino acids for postprandial muscle protein accretion in senescent muscle. Thus, the level of habitual physical activity may be fundamental to maintain the anabolic responsiveness to pro...

Although no amount of physical activity can stop the biological aging process, regular exercise can counteract some of the adverse physiological, psychological, and cognitive consequences of aging [1]. Age and physical inactivity are primary and secondary (indirect) risk factors for a long list of adverse chronic conditions [2, 3], whereas increasing physical activity from midlife to old age re...

INTRODUCTION Cognitive impairment in older adults is a major cause of functional disability. Interest in protecting brain health is likely to grow as the US population ages and more people have experiences with cognitive decline. Recent scientific evidence suggests that physical activity, heart-healthy diets, and social involvement may help to maintain brain health. We investigated attitudes ab...

OBJECTIVE There is no consensus on how to define successful aging. The authors sought to determine the correlates of self-rated successful aging as well as its correspondence with major researcher-defined criteria. METHODS Participants were 205 community-dwelling adults over age 60. A questionnaire survey asked the participants to rate their own degree of successful aging and inquired about d...