The objective of these studies was to determine the gender-dependent changes of coordination and fitness parameters in function of age by means of observational, cross-sectional study. We studied 180 male and 180 female participants by means of flamingo, kinesthetic differentiation, spatial orientation, reaction to signals, arm bend and chair stand tests. Generalized linear model (GLM) and the Welch test and the appropriate t-tests were used to compare the differences between the studied age groups. A nonlinear age-dependent progressive deterioration of basic coordination parameters and the strength level has been observed. The results of the battery of the tests indicate men as stronger with higher coordination level than women. The difference between the two genders increases along the aging.
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http://dx.doi.org/10.1016/j.archger.2009.12.008 | DOI Listing |
Nutrients
December 2024
Cryptobiotix, Technologiepark-Zwijnaarde 82, 9052 Gent, Belgium.
Background: The human gut microbiota develops in concordance with its host over a lifetime, resulting in age-related shifts in community structure and metabolic function. Little is known about whether these changes impact the community's response to microbiome-targeted therapeutics. Providing critical information on this subject, faecal microbiomes of subjects from six age groups, spanning from infancy to 70-year-old adults (n = six per age group) were harvested.
View Article and Find Full Text PDFJ Therm Biol
December 2024
Department of Agriculture, Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Volos, Greece. Electronic address:
The highly invasive Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is currently expanding its geographic distribution into cooler temperate areas of the Northern Hemisphere. In marginal conditions, the invasion potential of medfly depends in part on innate tolerance to the novel environmental conditions. Physiological tolerances are potentially influenced by interactions among multiple factors, such as organism age or reproductive maturity, sex, and mating status.
View Article and Find Full Text PDFJ Exp Child Psychol
January 2025
Department of Developmental Psychology, University of Hamburg, 20146 Hamburg, Germany.
Findings on the emergence and interpretation of early object representation in the first year of life diverge widely between designs that employ looking times versus action-based measures. As a promising new approach, pupillometry has produced evidence for object permanence at 18 months of age, but not younger as of yet. In the current study, we (re)investigated object permanence following occlusion events in a pupillometric violation-of-expectation paradigm optimized for younger infants.
View Article and Find Full Text PDFTheor Popul Biol
December 2024
School of Biological Sciences, Victoria University of Wellington, New Zealand.
Settlement is a critical transition in the life history of reef fish, and the timing of this event can have a strong effect on fitness. Key factors that influence settlement timing are predictable lunar cyclic variation in tidal currents, moonlight, and nocturnal predation risk as larvae transition from pelagic to benthic environments. However, populations typically display wide variation in the arrival of settlers over the lunar cycle.
View Article and Find Full Text PDFJ Virol
August 2024
Department of Microbiology and Immunology, Center for Infectious Disease, Stony Brook, New York, USA.
Unlabelled: Powassan virus (POWV) is an emergent tick-borne flavivirus that causes fatal encephalitis in the elderly and long-term neurologic sequelae in survivors. How age contributes to severe POWV encephalitis remains an enigma, and no animal models have assessed age-dependent POWV neuropathology. Inoculating C57BL/6 mice with a POWV strain (LI9) currently circulating in ticks resulted in age-dependent POWV lethality 10-20 dpi.
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