Relationship between balance and gait stability in healthy older adults

Age-related adaptations during walking create a more stable walking pattern, which is less effective for forward progression and might be related to balance deficiencies. This study determined the relationship between walking stability and measures of balance in older adults. Seventeen older and 20 young adults performed the Berg Balance Test (BBT) and walked 10 m. Walking velocity (WV) and cadence were measured, and a gait-stability ratio (GSR) was calculated. Higher GSR indicated that a greater portion of the gait cycle was spent in double-limb support. Age-group comparisons established declines in BBT scores and WV and increases in GSR with age. Significant relationships were identified for BBT Item 12 (alternate stepping on a stool) with WV (r =.58, r(2) =.34) and GSR (r = -.74, r(2) =.54). The correlation of BBT Item 12 with GSR was stronger than with WV (p <.05). Results indicated a strong relationship between increased gait stability and decreased balance for a dynamic weight-shifting task. Therefore, GSR is a better indicator of balance deficits during walking than is WV alone.     

ALIGNING ACTIONS: TYPES AND SOCIAL DISTRIBUTION*

Research on aligning actions requires a clearer understanding of what types of aligning actions exist. A typology of aligning actions is described which is based on three criteria: temporal focus (retrospective or prospective), claim made (concerning the actor's responsibility or the act itself), and the desirability of the event involved. The typology is shown to incorporate the aligning actions already discussed in the literature and to suggest new possibilities. Using this typology, a number of propositions are offered suggesting how aligning actions are used by actors with differing levels of interpersonal power, as relfected in their gender and age.     

On Factors And Components: A Comment on Nicholson and Yeates

Un article recent par Nicholson et Yeates sur l'ecologie factorielle de la ville de Winnipeg met en lumiere une difficulte courante dans la litterature - c'est-a-dire une confusion entre la methode des composantes principales et celle de l'analyse factorielle. Elles ne sont point identiques. Puisque les deux auteurs ne precisent pas lequel de ces deux modeles statistiques ils ont utilise, leurs resultats sont difficiles d'interpretation. Cependant, nous sommes portes a croire qu'ils auraient employe la methode des composantes principales. Si c'est le cas, leurs conclusions ne sont pas directement comparables a celles des autres études, puisque la plupart des autres chercheurs oeuvrant dans ce secteur ont favorise l'analyse factorielle. En dernier lieu, l'auteur suggere un ensemble de regies a respecter dans la production des rapports de recherches se rapportant a des etudes factorielles et a des etudes de composantes.
A recent article by Nicholson and Yeates on the factorial ecology of the city of Winnipeg illustrates a problem not uncommon in the literature - a confusion between the method of principal components and the principal factor procedure. They are not the same. Since the authors do not clearly state which of the two statistical models they employed, their results are difficult to interpret, although the available evidence suggests that they did use a principal component solution. If so, their results are not directly comparable to those reported by others, since most other investigators in the area have used the principal factor procedure. Finally, a set of rules for the reporting of component and factor studies is suggested.     

Southern culture and patterns of victim‐offender relationships in homicide: A study of primary and nonprimary homicide in Louisiana

This paper examines the relative influence of Southern culture versus social structural features on primary (dispute motivated) and nonprimary (crime motivated) homicide rates in Louisiana. Multiple regression analysis is used to compare the determinants of homicide in parishes ("counties") with typical Southern cultural heritage with those of parishes with French‐Catholic heritage. It was found that Southern culture exerted a greater positive influence on primary homicide rates than most structural variables, but was negative with respect to nonprimary rates. Implications for clarifying the debate concerning the existence of a Southern subculture of violence are discussed.     

Child Sexual Abuse and Adult Religious Life: Challenges of Theory and Method

The religious consequences of child sexual abuse in adulthood remain relatively unexamined in the research literature, especially where abusers are not clergy. Some studies suggest child sexual abuse survivors may rely on religion as a source of support, though the majority document a decrease in religiosity. Given the propensity for psychological challenges among adult survivors with diminished spiritual coping, we are calling for increased research attention to religion in the context of child sexual abuse. The objectives of this article were to review the literature on intersections between child sexual abuse (perpetrated by nonclergy) and religiosity in adults and set forth relevant research approaches for future investigation. Findings revealed a comprehensive, multidisciplinary, and theoretically informed approach to research may be needed.     

Disclosure of Child Sexual Abuse as a Life‐Long Process: Implications for Health Professionals

One of the aims of this research project was to develop a fuller understanding of the process of disclosure of child sexual abuse. Face‐to‐face in‐depth interviews were conducted with 22 men and women aged 25 to 70 years old, who had an early sexual experience at the age of 15 or under with someone of 18 or over. Narrative inquiry methodology was used and data was analysed using Rosenthal and Fischer‐Rosenthal's (2004) process of data analysis. Disclosure can be conceptualised as a complex and life‐long process, and most participants did not make a selective disclosure until adulthood. The findings extend Alaggia's (2004) model of disclosure to include the life stage and the person to whom the disclosure is being made. The main barriers to disclosure and possible gender differences are discussed. Family therapists need to manage the challenges inherent in disclosure of child sexual abuse at any age.     

The effect of guided relaxation and exercise imagery on self-reported leisure-time exercise behaviors in older adults

The purpose of this study was to examine the effects of a 6-wk intervention that used guided relaxation and exercise imagery (GREI) to increase self-reported leisure-time exercise behavior among older adults. A total of 93 community-dwelling healthy older adults (age 70.38 ± 8.15 yr, 66 female) were randomly placed in either a placebo control group or an intervention group. The intervention group received instructions to listen to an audio compact disk (CD) containing a GREI program, and the placebo control group received an audio CD that contained 2 relaxation tracks and instructions to listen to music of their choice for 6 wk. Results revealed that listening to a GREI CD for 6 wk significantly increased self-reported leisure-time exercise behaviors (p = .03). Further exploration of GREI and its effects on other psychological variables related to perceived exercise behaviors may substantiate its effectiveness.     

When did coronavirus arrive in Europe?

Statistical Methods & Applications - The first cluster of coronavirus cases in Europe was officially detected on 21st February 2020 in Northern Italy, even if recent evidence showed sporadic...     

Population and land use change in the California Mojave: Natural habitat implications of alternative futures

Demographic and land use dynamics have important implications for the natural environment within both developed and developing nations. Within the context of developed nations, popular and policy debates surrounding contemporary patterns of suburbanization attest to the salience of demographic and development issues. We examine the implications of land-use patterns as related to population and development within the context of the California Mojave Desert ecosystem. In a general sense, we aim to better understand the land requirements inferred by varying levels of population growth and density, as well as the natural habitat implications of those requirements. We develop a GIS including remotely sensed imagery, and demographic, economic, and biophysical data to examine of the implications of various demographic scenarios on species diversity. Spatial and statistical models are designed to develop possible alternative land use `futures'. Within the context of the California Mojave region, our results suggest that high-density development could reduce conflict with regions providing potential habitat for threatened or endangered species by over 80 percent. The process of model development demonstrates a potentially useful tool for policymakers, allowing for estimation and visualization of the land use implications of policy decisions.