Gender and motor competence affects perceived likelihood and importance of physical activity outcomes among 14 year olds

Little is understood about the impact of level of motor competence on self-perceptions in adolescence, in particular how this may differentially affect girls and boys. A sample of 1,568 14-year-old participants (766 girls and 802 boys) were grouped into four motor competence levels (very low to high) based on the McCarron Assessment of Neuromuscular Development (MAND). Self-perceptions were assessed using the Self-Perception Profile for Adolescents. Boys had higher self-perceptions of global self-worth, athletic competence, and physical appearance, whereas girls had higher scores for close friendships and behavioral conduct. Main effects in the predicted direction were found for motor competence for self-perceptions of global self-worth, athletic competence, physical appearance, close friendships, social acceptance, and romantic appeal. These findings indicate that level of motor competence is important in many aspects of self-perceptions, affecting girls and boys differently. Higher motor competence has a protective effect on psychosocial health, particularly for girls

Exercise can improve physical self perceptions in adolescents with low motor competence

Adolescents with low motor competence have diminished perceptions of their physical self and tend to avoid physical activities. This study examined the outcomes of an exercise intervention that focused on improving aerobic fitness, strength, and self-perceptions in the physical domain in adolescents with poor motor coordination. The sample included 35 adolescents with low motor competence, comprising boys (n = 25) and girls (n = 10) ranging in age from 13 to 17 years, who attended two sessions per week in the 13 week exercise intervention study (AMP it up). Physical self-perceptions were measured before and after the intervention using the Physical Self Perception Profile and Perceived Importance Profile. Significant improvements in perceived Physical Condition, Attractive Body and Physical Strength sub domain scores were identified between pre and post-test. Adjusting for age, gender, BMI and attendance, regression analyses revealed that Attractive Body was the strongest predictor of Physical Self Worth at pre-test, joined by Physical Condition at post-test. This exercise intervention had a positive impact on adolescent physical self-perceptions, in particular males, with improvements in those sub domains specifically related to the exercise program. Changes in specific aspects of Physical Self Worth can be facilitated by exercise interventions, after a relatively short period of time, in adolescents with poor motor coordination

Australian adolescents\u27 motor competence and perceptions of physical activity outcomes

Benefits that are generally associated with physical activity include enjoyment of the activity, expectation of positive benefits, intention to exercise, perceived fitness or health self-efficacy, intrinsic motivation, and positive physical self-perceptions (Sallis & Owen, 1999). In the Australian context where motor skill is highly valued, the ability to participate in play, games, and sports is likely to be particularly important in the socialization process of adolescents, such as their opportunity for reaffirming friendships and gaining social support from significant others. To be competent at movement would seem a clear advantage in order to experience quality of life through physical activity. However for adolescents who have poor motor competence, whose past experiences in sporting contexts have been less positive, future engagement in physical activity may not be viewed as so worthwhile. From a theoretical perspective motor competence has been closely linked to positive self-perceptions (Harter, 1999; Nicholls, 1990) and feelings of self-efficacy (Bandura, 1997). Furthermore, the choices individuals make are directly related to their expectancies for success, and subjective values they place on the options they perceive to be available (Eccles, Barber, & Jozefowicz, 1999). Empirical findings with adolescents (Cantell, Smyth, & Ahonen, 2003; Poulsen, Ziviani, Cuskelly, & Smith, 2007) suggest that level of motor competence is associated with psycho-social outcomes that in turn influence the intrinsic motivation to engage in physical activity. Even with marginal motor difficulties, adolescents perceive greater barriers to exercise (Rose, Larkin, Hands, & Parker, 2008) but there is little known of how adolescents with low motor competence perceive outcomes of future engagement in physical activity differently to their better coordinated peers. Their difficulties are not only frequently overlooked but are compounded by not experiencing the joy of participation and benefit from the healthy outcomes of physical activity so important to quality of life. Furthermore, there is evidence that movement difficulties experienced in childhood do not go away and there are often physical and psycho-social difficulties extending into adulthood (Cantell, Smyth, & Ahonen, 2003). In our study we proposed that adolescent girls and boys who differ in level of motor competence will also differ in their perceptions of benefits gained from any future engagement in sports and physical recreation. These proposed differences especially may be evident in physical and social evaluative settings where according to Harter (1999) adolescents are particularly vulnerable. She found that subgroups experiencing motor difficulties are likely to have a diminished view of their physical selves and be unwilling to participate in physical activities. If little positive benefit is perceived from participation there are strong implications for physical health associated with low energy expenditure and for overall quality of life. Considering that gender is linked to academic, occupational and recreational choice (Eccles et al., 1999) and that socialization for girls in sport often differs from that of boys (Coakley, 2007), girls may view their future in physical activity as less rewarding. This might have implications not only for girls but particularly for those girls who also lack competence in movement. Boys also may experience disadvantage if their motor competence does not reach the expectations of a sport oriented society (Poulsen et al., 2007). Our purpose here was to examine the likelihood of experiencing positive or negative outcomes from engaging in physical activity in adolescent boys and girls who differed in level of motor competence

A Metalsmith\u27s Guide to Toxicology

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The Expense of Spirit

A public and highly popular literary form, English Renaissance drama affords a uniquely valuable index of the process of cultural transformation. The Expense of Spirit integrates feminist and historicist critical approaches to explore the dynamics of cultural conflict and change during a crucial period in the formation of modern sexual values. Comparing Elizabethan and Jacobean dramatic representations of love and sexuality with those in contemporary moral tracts and religious writings on women, love, and marriage, Mary Beth Rose argues that such literature not only interpreted sexual sensibilities but also contributed to creating and transforming them.A public and highly popular literary form, English Renaissance drama affords a uniquely valuable index of the process of cultural transformation. The Expense of Spirit integrates feminist and historicist critical approaches to explore the dynamics of cultural conflict and change during a crucial period in the formation of modern sexual values. Comparing Elizabethan and Jacobean dramatic representations of love and sexuality with those in contemporary moral tracts and religious writings on women, love, and marriage, Mary Beth Rose argues that such literature not only interpreted sexual sensibilities but also contributed to creating and transforming them

Control of neutrophil inflammation at mucosal surfaces by secreted epithelial products

The human intestine is a large and delicately balanced organ, responsible for efficiently absorbing nutrients and selectively eliminating disease-causing pathogens. The gut architecture consists of a single layer of epithelial cells that forms a barrier against the food antigens and resident microbiota within the lumen. This barrier is augmented by a thick layer of mucus on the luminal side and an underlying lamina propria containing a resident population of immune cells. Attempted breaches of the intestinal barrier by pathogenic bacteria result in the rapid induction of a coordinated innate immune response that includes release of antimicrobial peptides, activation of pattern recognition receptors, and recruitment of various immune cells. In recent years, the role of epithelial cells in initiating this immune response has been increasingly appreciated. In particular, epithelial cells are responsible for the release of a variety of factors that attract neutrophils, the body\u27s trained bacterial killers. In this review we will highlight recent research that details a new understanding of how epithelial cells directionally secrete specific compounds at distinct stages of the inflammatory response in order to coordinate the immune response to intestinal microbes. In addition to their importance during the response to infection, evidence suggests that dysregulation of these pathways may contribute to pathologic inflammation during inflammatory bowel disease. Therefore, a continued understanding of the mechanisms by which epithelial cells control neutrophil migration into the intestine will have tremendous benefits in both the understanding of biological processes and the identification of potential therapeutic targets

Improving Tribal Collaboration in California\u27s Integrated Regional Water Management Program

Our research examines Integrated Regional Water Management (IRWM) policy-in-practice, which often reflects broader State exclusion of Tribal partners in natural resource policy, yet also provides potential opportunities for government-to-government collaboration and co-management. IRWM is the state of California’s chosen mechanism for collaborative water management. Our findings confirm that if Tribes and state or local jurisdictions were already working well together, the IRWM program has been beneficial to Tribal interests. In the Tuolumne-Stanislaus IRWM region, for example, the Regional Water Management Group (RWMG) facilitated a first of its kind voluntary water transfer between a Tribe and a local water agency. Conversely, in situations in which local governments and Tribal governments were adversarial, IRWM presents an additional barrier to Tribal participation in water policy and planning, despite Tribes’ Winters-affirmed federal reserved water rights. In all instances, we found it would significantly improve IRWM statewide to require RWMGs to: (a) engage in statutorily defined1 government-to-government consultation with Tribes and (b) provide seats for Tribal representation on RWMG governance bodies. By revising the IRWM program guidelines, the state of California can continue to address deeply institutionalized inequities within state water policy and management structures. Following the release of our recommendations, California Department of Water Resources (DWR) began holding workshops to examine revising the IRWM program guidelines. If DWR implements the findings from our study and requires Tribal participation in the governance of RWMGs, this could set a productive example for other states, as well as result in significant benefits in California water management

The psychometric properties of the McCarron Assessment of Neuromuscular Development as a longitudinal measure with Australian youth

The importance of considering age and sex differences in the assessment of motor performance has been largely overlooked. This study examines the psychometric properties of the US developed McCarron Assessment of Neuromuscular Development (MAND) using data from a longitudinal sample of 986 Australian youth at 10, 14 and 17 years. A key finding was the sex and age interaction of the Neuromuscular Developmental Index (NDI) (F = 121.46, p \u3c .001). Males had a significantly lower mean NDI score at 10 years and the females had a lower score at 17 years. The factor structure differed from the US samples (McCarron, 1997) at each age and between males and females. The sex specific analyses showed that the underlying structure was more complex for younger females. Although the MAND remains a useful test of motor performance for Australian children, further consideration is warranted regarding sex differences, the relevance of the US based normative tables and factor structures