Purpose: This study aimed to assess the incidence of adverse events (AE) in older adults participating in a year-long exercise intervention, investigating potential dose-response relationships between exercise intensity and AE frequency, and identifying demographic factors associated with AE risk.
Methods: A total of 648 older adults were randomized into one of three exercise groups: low-intensity stretching and toning (S&T), 150 minutes of aerobic exercise per week (150Ex), or 225 minutes of aerobic exercise per week (225Ex). Adverse events were tracked during the intervention, with event rates calculated based on participant adherence and time in the study.
Introduction: Adolescents report using digital technologies for emotion regulation (digital ER), with the aim of feeling better (i.e., improving emotions and reducing loneliness).
View Article and Find Full Text PDFAdolescents face many academic pressures that require good coping skills, but coping skills can also depend on social resources, such as parental support and fewer negative interactions. The aim of this study was to determine if parental support and parental negative interactions concurrently and longitudinally relate to adolescents' ways of academic coping, above and beyond the impact of three types of academic stress, students' achievement at school (i.e.
View Article and Find Full Text PDFParent-Child Interaction Therapy (PCIT) is an intensive parent support program for caregivers and their children who exhibit difficult-to-manage disruptive behaviors. After more than four decades of research supporting its efficacy for reducing children's disruptive behaviors and improving parent-child relationships, PCIT has become one of the most popular and widely disseminated parenting support programs in the world. The evidence for the efficacy of PCIT can be found in many reviews of randomized clinical trials and other rigorous studies.
View Article and Find Full Text PDFConsidering the emphasis on parent-led sexual abuse education (PLSAE) in child sexual abuse (CSA) prevention, and the imperative of prevention in families living with demonstrated risk factors, it is important to understand the extent to which this group delivers PLSAE to their children, whether this is associated with any barriers or facilitators, whether parents are engaging in other protective behaviors (such as monitoring and involvement) and the relationship between these variables and other risk factors such as parent and child symptomology. We surveyed 117 parents, with children ranging in age from 25-89 months (67% boys), attending a parenting program for assistance with a range of parenting difficulties and child behavior problems from 2020-22. A large majority of parents reported not giving their children comprehensive prevention messages, discussing body integrity and abduction dangers to a greater extent.
View Article and Find Full Text PDFIntroduction: Many adolescents are concerned about global and future crises, such as the health of the planet or terrorism/safety. Yet, adolescents can also express hope about the future. Thus, asking adolescents about their concern and hope could yield subgroups with different ways of coping and personal adjustment.
View Article and Find Full Text PDFThe Circle of Security-Parenting Intervention (COS-P; Cooper et al., 2009) is a psychoeducational program for caregivers of young children that has been widely disseminated. The program is founded in attachment theory and relies on computer-delivered content and parent reflection and discussion to teach concepts of safety and security to promote better caregiver-child relationships and child wellbeing.
View Article and Find Full Text PDFExperiencing stressful events that threaten feelings of social belonging can have far-reaching negative impacts on well-being, but there are individual differences in sensitivity to threat that might be explained by dispositional traits. In particular, naturally occurring dispositional mindfulness may be one trait that can explain such differences. To test this possibility, a pool of 495 young adults completed a measure of dispositional mindfulness and a subset of 90 (M = 19 years, SD = 1.
View Article and Find Full Text PDFMost adolescents and young adults navigate seamlessly between offline and online social environments, and interactions in each environment brings with it opportunities for appearance concerns and preoccupation, as well as victimization and teasing about appearance. Yet, research has concentrated primarily on face-to-face victimization and its role in offline appearance anxiety symptoms in adolescents and young adults. To extend this to include cyber-victimization and online behaviors indicative of appearance anxiety, the present longitudinal study investigated the risk of face-to-face and cyber-victimization for offline appearance anxiety and online appearance preoccupation.
View Article and Find Full Text PDFIntroduction: Adolescents and young adults who overemphasize the social values placed on an attractive appearance may develop body dysmorphic symptoms (BDS), defined as over-preoccupation with perceived appearance flaws and repetitive behaviors to conceal the flaws. Further, research has found that a heightened expectation of judgement and rejection by others because of appearance (i.e.
View Article and Find Full Text PDFSocial media (SM) can create a climate of social comparison and preoccupation with appearance, which can pose risks for emotional problems, such as depression and social anxiety. In this study, 763 adolescents and young adults reported time spent and intensity of social media use and preoccupation with both general and appearance-related (AR) social media activities and content. Associations were investigated with markers of depression and social anxiety symptoms and appearance sensitivities - appearance anxiety and appearance rejection sensitivity (appearance-RS).
View Article and Find Full Text PDFContext: Overestimation or underestimation of portion size leads to measurement error during dietary assessment.
Objective: To identify portion size estimation elements (PSEEs) and evaluate their relative efficacy in relation to dietary assessment, and assess the quality of studies validating PSEEs.
Data Selection And Extraction: Electronic databases, internet sites, and cross-references of published records were searched, generating 16 801 initial records, from which 334 records were reviewed and 542 PSEEs were identified, comprising 5% 1-dimensional tools (eg, food guides), 46% 2-dimensional tools (eg, photographic atlases), and 49% 3-dimensional tools (eg, household utensils).
Various and inconsistent definitions for free and added sugars are used in the consideration and assessment of dietary intakes across public health, presenting challenges for nutritional surveillance, research, and policy. Furthermore, analytical methods to identify those sugars which are not naturally incorporated into the cellular structure of foods are lacking, thus free and added sugars are difficult to estimate in an efficient and accurate way. We aimed to establish a feasible and accurate method that can be applied flexibly to different definitions.
View Article and Find Full Text PDFIt has always been assumed that a three-dimensional protein structure is essential to antifreeze protein (AFP) ice interactions. Using a 9 kDa AFP isolated from the springtail, Gomphiocephalus hodgsoni, it was found that the bond between ice and protein is maintained independent of higher order protein structure. GomplyAFP9 remained bound to ice after denaturing by a range of agents (boiling, extreme pH, DTT, ethanol, urea).
View Article and Find Full Text PDFIn the Rock and Pillar Range, New Zealand, the alpine grasshopper, Sigaus australis Hutton, survives equilibrium freezing (EF) all-year round. A comparison of freeze tolerance (FT) in grasshoppers over four austral seasons for a 1 year period finds that: (a) the majority (>70%) of the sample population of grasshoppers survive single freeze-stress throughout the year; (b) exposure to increased freeze stress (multiple freeze-stress events) does not lead to a loss of freeze tolerance; and (c) responses to increased freeze stress reveal seasonal tuning of the FT adaptation to environmental temperatures. The Rock and Pillar sample population provides a clear example of the canalization of the FT adaptation.
View Article and Find Full Text PDFAt temperatures below their temperature of crystallization (Tc), the extracellular body fluids of insects undergo a phase transition from liquid to solid. Insects that survive the transition to equilibrium (complete freezing of the body fluids) are designated as freeze tolerant. Although this phenomenon has been reported and described in many Insecta, current nomenclature and theory does not clearly delineate between the process of transition (freezing) and the final solid phase itself (the frozen state).
View Article and Find Full Text PDFA 9 kDA antifreeze protein (AFP) was isolated and purified from the Antarctic springtail, Gomphiocephalus hodgsoni. By combining selective sampling procedures and a modified ice affinity purification protocol it was possible to directly isolate a single AFP protein without recourse to chromatographic separation techniques. Mass spectrometry identified a single 9 kDa component in the purified ice fraction.
View Article and Find Full Text PDFThe adaptive fitness of a freeze-tolerant insect may be mediated by both endogenous and exogenous interactions. The aim of the study presented here was to characterize the freeze tolerance of alpine Tiger moth caterpillars (Metacrias huttoni) and highlight two poorly explored indices of the potential attrition of fitness: (1) downstream development and reproduction; (2) parasitism. Caterpillars survived temperatures as low as -16°C and demonstrated >90% 72-h survival after exposures to -10°C.
View Article and Find Full Text PDFJ Comp Physiol B
August 2011
Antarctic springtails are exemplars of extreme low temperature adaptation in terrestrial arthropods. This paper represents the first examination of such adaptation in the springtail, Gressittacantha terranova. Acclimatization state was measured in field-fresh samples over a 22-day period at the beginning of the austral summer.
View Article and Find Full Text PDFThe process of organismal freezing in the Antarctic limpet, Nacella concinna, is complicated by molluscan biology. Internal ice formation is, in particular, mediated by two factors: (a) the provision of an inoculative target for ice formation in the exposed mucus-secreting foot; and (b) osmoconformity to the marine environment. With regard to the first, direct observations of the independent freezing of pedal mucus support the hypothesis that internal ice formation is delayed by the mucal film.
View Article and Find Full Text PDFThis study employed H-NMR spectroscopy to assay the metabolome of the high Arctic freeze-tolerant dipteran larvae, Heleomyza borealis, after recovery from exposure to a range of sub-zero temperature treatments. Our data demonstrate the resilience of freeze tolerance in individuals of this permanently freeze-tolerant species that were acclimated to summer temperatures (5 degree C): recovery of homeostasis after 48 h was not significantly disturbed by 2h exposures to -3, -12, or -20 degree C. Evidence of homeostatic perturbation to cryo-stress - both in terms of changes in specific metabolite concentrations as well as systemic changes in metabolism determined using multivariate pattern recognition techniques - was expressed almost entirely at a temperature coincident with the significant onset of mortality (-25 degree C) and considerably below the minimum winter temperatures of its over-wintering habitat (c.
View Article and Find Full Text PDF