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Intra-Individual Variation and Estimates of Usual Physical Activity
Annals of Epidemiology, 1999The magnitude of intra-individual variation, as determined by three methods of physical activity (PA) assessment, was estimated to determine the optimal number of repeated measures needed to reliably measure an individual's usual PA habits.Data were obtained from 77 healthy adults enrolled in the Survey of Activity, Fitness, and Exercise (SAFE). PA was
S, Levin +4 more
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Intra-individual variability in tinnitus patients
HNO, 2015Most tinnitus studies have attempted to compare groups of individuals, thus revealing inter-individuals differences, i.e., variations between compared subjects. For methodological reasons, inter-individual studies cannot take into account the variability of tinnitus experience, which has been known for decades to be relevant in daily practice with ...
Dauman, Nicolas +3 more
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Internal, External and Intra-Individual Relations
Axiomathes, 2005In this paper I argue that there are in fact external relations in Russell’s sense. The level at which we are forced to acknowledge them is, however, not the level of relations between concrete individual objects. All relations of this kind, which I will call “inter-individual” relations, can be construed as supervenient on the monadic properties of ...
Arkadiusz Chrudzimski +2 more
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Intra-individual consistency of vestibular perceptual thresholds
Attention, Perception, & PsychophysicsVestibular perceptual thresholds quantify sensory noise associated with reliable perception of small self-motions. Previous studies have identified substantial variation between even healthy individuals' thresholds. However, it remains unclear if or how an individual's vestibular threshold varies over repeated measures across various time scales ...
Clark, Torin K. +2 more
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Intra-individual variability in postural blood pressure in the elderly
Clinical Science, 19851. Orthostatic hypotension, an age-related phenomenon, has been associated with hypertension and body weight variability. To evaluate the relative contributions of blood pressure elevation and abnormalities in extracellular volume regulation to orthostatic hypotension, elderly institutionalized subjects (mean age = 87 ± 7 years), taking no ...
L A, Lipsitz +3 more
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Intra-Individual Variation in Bone Resorption Markers in Urine
Annals of Clinical Biochemistry: International Journal of Laboratory Medicine, 1996Osteoporosis, an increasingly common health problem, is the result of the continuous loss of bone during adult life, which is accelerated in women after the menopause. This additional bone loss is of variable length and intensity, resulting in 'fast-losers' and 'normal-losers'.
C, Popp-Snijders +2 more
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Analysis of the intra-individual differences of the joint surfaces of the calcaneus
Computer Methods in Biomechanics and Biomedical Engineering, 2013Patients with calcaneus fractures experience considerable interferences with daily living activities. The quality of anatomical reconstruction is important because of its influence on functional outcome. The aim of this study was to develop an automatic algorithm based on computer tomographic (CT) images to quantify the integrity of calcaneal joint ...
Daniel, Stephan +3 more
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Evaluation of Electrocardiographic Leads and Establishing Significance Intra-individuality
2014The theme of this work was to design and program implementation process electrocardiogram Frank leakage system. Especially when this realization were preprocessed ECG real data, which means the modification of data filtration. The work focuses on the optimal detection of ventricular complex electrocardiographic signals.
Marek Penhaker +3 more
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