Changes in and the mediating role of physical activity in relation to active school transport, fitness and adiposity among Spanish youth: the UP&DOWN longitudinal study [PDF]
Background Longitudinal changes in child and adolescent active school transport (AST), and the mediating role of different intensities of daily physical activity (PA) levels in relation to AST and physical fitness and adiposity indicators is unclear ...
Abbott, Gavin+9 more
core +3 more sources
The relationship between physical activity, motor competence and health-related fitness in 14-year-old adolescents [PDF]
Physical activity, physical fitness, and motor competence are important health-related constructs. However, the relationship between them, particularly among children and adolescents, is still unclear.
Hands, Beth P+4 more
core +2 more sources
Effects of aging on unloading-induced skeletal muscle atrophy and subsequent recovery in rats
Aged individuals with physiological muscle atrophy (sarcopenia) are likely forced into an unloading condition of inactivity such as bed rest and limb-immobilization.
Hideki Yamauchi+3 more
doaj +1 more source
We examined the association between indicators of the school environment with sedentary behavior and different intensities of physical activity in children.
Diego Sales+5 more
doaj +1 more source
A Single Question of Parent-Reported Physical Activity Levels Estimates Objectively Measured Physical Fitness and Body Composition in Preschool Children: The PREFIT Project [PDF]
Physical inactivity is recognized as a determinant of low physical fitness and body composition in preschool children, which in turn, are important markers of health through the lifespan.
Aadahl+37 more
core +7 more sources
Central command and muscle metaboreflex effect on superficial venoconstriction in the resting limb
Exercise significantly activates the sympathetic nervous system. Sympathetic activation during exercise is governed by both central command and muscle reflex mechanisms (i.e., muscle metabo- and mechano-reflexes), which modulate arterial vascular ...
Anna Ooue, Tomoko Sadamoto
doaj +1 more source
Background With increases in inactive lifestyles and mounting pressure for academic excellence in Chinese younger populations, lack of physical activity and increased prevalence of obesity have become a major public health concern in China.
Zheng Zhu+8 more
doaj +1 more source
Fit Into College: A Program to Improve Physical Activity and Dietary Intake Lifestyles Among College Students [PDF]
The purpose of this study was to determine whether a 10-week program could improve physical activity, physical fitness, body weight, dietary intake, and perceptions of exercise and diet among college 30 healthy college freshmen. Outcomes were measured at
Conte, Kathleen P.+7 more
core +2 more sources
Sarcopenia is a common skeletal muscle degenerative disease characterized by decreased skeletal muscle mass and mitochondrial dysfunction that involves microRNAs (miR) as regulatory factors in various pathways.
Zhang-Lin Chen+13 more
doaj
Causation, physics, and fit [PDF]
Our ordinary causal concept seems to fit poorly with how our best physics describes the world. We think of causation as a time-asymmetric dependence relation between relatively local events. Yet fundamental physics describes the world in terms of dynamical laws that are, possible small exceptions aside, time symmetric and that relate global time slices.
openaire +4 more sources