Evaluation of hip abductor and adductor strength in the elderly: a reliability study

Background

In elderly individuals an increased muscle strength contributes to the diminution of the falls risk and associated adverse events. An increasing interest in lateral control exists due to the fatal consequences of postero-lateral falls. Therefore a proper assessment of frontal plane hip muscle strength in elderly is important but remains challenging.Therefore we aimed to investigate the feasibility and repeatability of a hip abductor and adductor maximum voluntary isometric strength (MVIS) and rate of force generation (RFG) test in elderly. This represents an initial step in the development process of a new and clinically relevant test that could lead to more specific treatment protocols for this population.

Methods

In this measurement focused study hip abduction (ABD) and adduction (ADD) MVIS and RFG were tested twice within one to three hours with a dynamometer fixed to a custom made frame in a geriatric population including fallers and non-fallers. Intraclass correlation coefficient (ICC_agreement), standard error of measurement (SEM), and smallest detectable difference (SDD) were determined.

Results

All recruited persons (N?=?76; mean age (SD) 80.46 (7.05) years old) completed the tests. The average time needed to complete the strength tests was 10.58 min. (1.56) per muscle group. The reliability of the hip ABD and ADD was high with ICC’s_agreement ranging from 0.83 to 0.97. The SDD varied between 18.1 and 81.8% depending on the muscle group and type of strength that was evaluated.

Conclusion

Hip abductor and adductor strength measures in older person are feasible and reliable. However, the significance of moderate changes in these measurements may be limited by the large SDD and SEM. Therefore, physical therapist should be careful when using this measure for assessing the progress of an individual person in a daily clinical use.

     

Child Marriage Laws around the World: Minimum Marriage Age,Legal Exceptions,and Gender Disparities

ABSTRACT

The marriage of children below 18 is widely recognized in international human rights agreements as a discriminatory global practice that hinders the development and well-being of hundreds of millions of girls. Using a new global policy database, we analyze national legislation regarding minimum marriage age, exceptions permitting marriage at earlier ages, and gender disparities in laws. While our longitudinal data indicate improvements in frequencies of countries with legal provisions that prohibit marriage below the age of 18, important gaps remain in eliminating legal exceptions and gender discrimination.     

Working it: the professionalization of amateurism in digital adult entertainment

This article examines a sector of professional amateur work for women in the digital industry for adult entertainment known as “adult webcam modeling” (AWM). Through a selection of narratives, this paper explores the gendered meanings of AWM and the values women derive from their “amateur” sexual content creation. I draw particular attention to the complex union of professional and amateur roles and relations in the strategies women adopt to succeed in these spaces. On one level, they describe the technical skills and institutionalized knowledge needed to successfully perform professionalized duties of hosting and animating site users’ sexual and emotional fantasies. Still, they do not solely view their work in professional terms, highlighting the usefulness of enacting their amateurism by performing authenticity and developing ongoing friendships with site users for succeeding in this line of work. Framing this work as reliant on both “professional” and “amateur” strategies builds ambiguity into the AWM persona, which has implications for social and historical constructions of sexuality and gender. It also demands rethinking conceptual frameworks that create dualities between professional/amateur, public/private, and commercial/authentic.     

Caregiving environment and socio-emotional development of foster-placed FASD-children

The study investigated the role of the postnatal caregiving environment in the socio-emotional development of children under the age of 16 who had been exposed to alcohol in utero and placed in foster family care (n = 38). Quantitative and qualitative methods of analysis were utilized. Based on psychological examinations, most of the children (76%) were reported to have at least one developmental problem; concentration, attention and language/speech problems being the most typical. The critical issues affecting children's development were 1) the range of somatic illnesses and disabilities that had impaired their functional capacity, 2) children's age at the time of the first placement and of entry into long-term foster family care, and 3) the number of traumatic experiences. Placement outside a biological family at an early age decreased, and traumatic experiences, illnesses and disabilities increased socio-emotional problems (including neuropsychological problems). Undiagnosed children had more behavioural problems measured by the Child Behaviour Checklist than children with foetal alcohol syndrome, but in general the differences between the diagnostic categories were small. Damage to the central nervous system by prenatal alcohol exposure together with lack of constructive early interaction seems to launch a process which may make it difficult for the child to form a coherent picture of him-/herself and to control his/her feelings and behaviour.     

Life Satisfaction Among Children in Different Family Structures: A Comparative Study of 36 Western Societies

This paper examines differences in life satisfaction among children in different family structures in 36 western, industrialised countries (n = 184 496). Children living with both biological parents reported higher levels of life satisfaction than children living with a single parent or parent–step‐parent. Children in joint physical custody reported significantly higher levels of life satisfaction than their counterparts in other types of non‐intact families. Controlling perceived family affluence, the difference between joint physical custody families and single mother or mother–stepfather families became non‐significant. Difficulties in communicating with parents were strongly associated with less life satisfaction but did not mediate the relation between family structure and life satisfaction. Children in the Nordic countries characterised by strong welfare systems reported significantly higher levels of life satisfaction in all living arrangements except in single father households. Differences in economic inequality between countries moderated the association between certain family structures, perceived family affluence and life satisfaction.     

Three dimensions of the public sphere on Facebook

The article provides an empirical analysis of the online public sphere in the three dimensions introduced by Dahlgren (2005): structural, representational and interactional. The main subject of analysis is the largest social networking site – Facebook – and Polish users’ activity on the Facebook Pages of political parties and politicians. The researchers analysed data about all users active on those Pages during two 4-month periods in 2013 and 2015. The results of the study show that only a small fraction of Facebook users are active in public political discussions that take place on political Facebook Pages (structural dimension). However, the level of engagement depends on the current political events taking place within the public sphere offline, and users are more active during electoral campaigns. Moreover, Facebook does not provide an alternative public sphere for political actors that are less present in mainstream media. Parties and politicians that are visible in traditional media are also attracting active fans in social media (representational dimension). Nonetheless, non-parliamentary groups have more active fans than would result only from their popularity in mainstream media. Finally, the online public on Facebook is fragmented and clustered into homogenous political groups (interactional dimension), thus supporting the hypothesis on ‘echo chambers’ presented by Sunstein (2001). The divisions are smaller when there are significantly more users involved. However, most of these cross-cutting links are the result of the electoral campaign.