11 Result(s)
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J. Timothy Lightfoot
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Article
Sibling Resemblances in Physical Fitness in Three Distinct Regions in Peru: The Peruvian Sibling Study on Growth and Health
We estimated sibling resemblance in health-related physical fitness (PF) and examined how individual characteristics and shared natural environment accounted for sibling similarities. The sample comprised 656 ...
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Article
Open AccessInter-individual variation in adaptations to endurance and resistance exercise training: genetic approaches towards understanding a complex phenotype
Exercise training which meets the recommendations set by the National Physical Activity Guidelines ensues a multitude of health benefits towards the prevention and treatment of various chronic diseases. Howeve...
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Article
Epistatic interactions of genes influence within-individual variation of physical activity traits in mice
A number of quantitative trait loci (QTLs) recently have been discovered that affect various activity traits in mice, but their collective impact does not appear to explain the consistently moderate to high he...
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Chapter
Can You Be Born a Couch Potato? The Genomic Regulation of Physical Activity
Most behaviors are controlled by a combination of environmental and genetic/biological factors. The regulation of daily physical activity levels, however, has primarily been considered to be environmental in o...
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Article
Sex Hormone Effects on Physical Activity Levels
The relationship between physical activity levels and disease rates has become an important health-related concern in the developed world. Heart disease, certain cancers and obesity persist at epidemic rates i...
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Article
Open AccessA search for quantitative trait loci controlling within-individual variation of physical activity traits in mice
In recent years it has become increasingly apparent that physical inactivity can predispose individuals to a host of health problems. While many studies have analyzed the effect of various environmental factor...
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Article
Open AccessGenetic variation in the pleiotropic association between physical activity and body weight in mice
A sedentary lifestyle is often assumed to lead to increases in body weight and potentially obesity and related diseases but in fact little is known about the genetic association between physical activity and b...
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Article
Open AccessGenetic variation for body weight change in mice in response to physical exercise
Physical activity is beneficial in reducing the weight gain and associated health problems often experienced by individuals as they age, but the association of weight change with physical activity remains comp...
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Article
A wide range of baroreflex stimulation does not alter forearm blood flow
The contribution to the regulation of forearm blood flow (FBF) by different baroreceptor populations has previously only been studied over a limited range of stimuli. Therefore, FBF and R-R interval were recor...
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Article
The reproducibility of tolerance to lower-body negative pressure and its quantification
The reproducibility of tolerance to lower-body negative pressure (LBNP) has not been assessed sufficiently. Furthermore, there has been confusion concerning the most appropriate index by which LBNP tolerance ...
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Article
Can Blood Pressure be Measured During Exercise?
