Balance Performance During Perturbed Standing Is Not Associated With Muscle Strength and Power in Young Adults

The authors investigate the ways in which varied postural responses to translating platform perturbations are associated with the variables of strength and power. Twenty-four physically active and 27 sedentary young adults were exposed to a set of postural perturbations at varied velocities (10 and 20 cm/s) and the respective accelerations (6.4 and 6.9 m/s²), constant distance (6 cm), and 4 directions of platform motion (forward, backward, left-lateral, and right-lateral). They also performed maximum voluntary isometric contraction (MVC) and chair rising/chair jumping tests. The analysis of variance revealed significant interaction effect for peak center of pressure displacement, direction by velocity: F_3,129 = 24.43, p = .002; and direction by acceleration: F_3,129 = 34.18, p = .001. There were no significant correlations between peak center of pressure displacements and peak force and peak rate of force development measured during MVC in either standing (r = .27–57) or sitting positions (r = .12–51) and peak power during chair jumping (r = .47–.59) in all participants. As such, only a small proportion of variance was explained (9–39%, 3–23%, and 23–41%, respectively). In conclusion, interaction effects indicate that the composition of stimuli strongly influences compensatory responses and this effect is more pronounced in sedentary than in physically active young adults. Nevertheless, the dynamic balance is not associated with muscle strength and power in either group.     

Characteristics of E-therapy Websites Involving Marriage and Family Therapists

This study described some of the common ethical and legal issues that mental health professionals practicing over the Internet or phone may encounter. It also explored how 83 e-therapy websites involving marriage and family therapists characterize their services. Results indicated that a majority of the websites lack information regarding crisis resources, terms of service, procedures for treatment of minors, and procedures for provision of therapy across borders. Further findings indicated that practitioners may have not properly considered the global nature of the Internet and its risks. Therapists are urged to give attention to e-therapy limitations, as well as ethical and legal problems, before attempting distance treatment.     

Associations between assertiveness,psychological well‐being,and self‐esteem in adolescents

This study explored the associations between adolescents’ assertive behavior, psychological well‐being, and self‐esteem. The sample consisted of 1,023 students (14.9 ± .51; 47.6% boys). Two dimensions of the Scale for Interpersonal Behavior (distress and performance), 2 factors of the General Health Questionnaire‐12 (depression/anxiety and social dysfunction), and 2 factors of the Rosenberg Self‐Esteem Scale (positive self‐esteem and negative self‐esteem) were used; data were analyzed using hierarchical linear regression. It was found that (a) the more anxious respondents felt in assertive situations, the less frequently they engaged in these situations; and that (b) both dimensions of assertiveness were associated with psychological well‐being and self‐esteem.     

Tolerance more than equality? Two facets of tolerance towards immigrants among Czech adolescents

ABSTRACT

This study focused on facets of tolerance towards immigrants among Czech adolescents, drawing on data from 9^th and 10^th graders (n = 2003). The aim of this study was to examine the relationship between tolerance towards immigrants and support for democracy, repression potential, right-wing authoritarianism, and out-group trust. Results showed that tolerance towards immigrants should be treated as a two-dimensional concept: support for equal rights, focused on equality in labour market, housing or access to education, and support for cultural rights, encompassing acceptance of immigrants’ rights to practice their culture and religion. We found that Czech adolescents were generally more supportive of equal rights than of cultural rights, and that out-group trust explained most of the variance for both dimensions of tolerance towards immigrants. The study also indicated ambiguous effects in the relationship between right-wing authoritarianism, repression potential and support for equal/cultural rights of immigrants with out-group trust used as moderating variable.