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

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

Lipoid Proteinosis: Unfamiliar Skin Findings Delay Diagnosis

Lipoid proteinosis (LP) is a rare, inherited condition that progresses gradually with multisystemic manifestations. Histopathologic characteristics can be understated, delaying the diagnosis if a high degree of suspicion is not present

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

Does motor competence affect self-perceptions differently for adolescent males and females?

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

Mindfulness-Base Intervention for Latino Patients and their Caregivers

https://openworks.mdanderson.org/sumexp22/1150/thumbnail.jp

The infrared imaging spectrograph (IRIS) for TMT: sensitivities and simulations

We present sensitivity estimates for point and resolved astronomical sources for the current design of the InfraRed Imaging Spectrograph (IRIS) on the future Thirty Meter Telescope (TMT). IRIS, with TMT's adaptive optics system, will achieve unprecedented point source sensitivities in the near-infrared (0.84 - 2.45 {\mu}m) when compared to systems on current 8-10m ground based telescopes. The IRIS imager, in 5 hours of total integration, will be able to perform a few percent photometry on 26 - 29 magnitude (AB) point sources in the near-infrared broadband filters (Z, Y, J, H, K). The integral field spectrograph, with a range of scales and filters, will achieve good signal-to-noise on 22 - 26 magnitude (AB) point sources with a spectral resolution of R=4,000 in 5 hours of total integration time. We also present simulated 3D IRIS data of resolved high-redshift star forming galaxies (1 < z < 5), illustrating the extraordinary potential of this instrument to probe the dynamics, assembly, and chemical abundances of galaxies in the early universe. With its finest spatial scales, IRIS will be able to study luminous, massive, high-redshift star forming galaxies (star formation rates ~ 10 - 100 M yr-1) at ~100 pc resolution. Utilizing the coarsest spatial scales, IRIS will be able to observe fainter, less massive high-redshift galaxies, with integrated star formation rates less than 1 M yr-1, yielding a factor of 3 to 10 gain in sensitivity compared to current integral field spectrographs. The combination of both fine and coarse spatial scales with the diffraction-limit of the TMT will significantly advance our understanding of early galaxy formation processes and their subsequent evolution into presentday galaxies.Comment: SPIE Astronomical Instrumentation 201

Just Compensation: A No-Fault Proposal for Research-Related Injuries

Biomedical research, no matter how well designed and ethically conducted, carries uncertainties and exposes participants to risk of injury. Research injuries can range from the relatively minor to those that result in hospitalization, permanent disability, or even death. Participants might also suffer a range of economic harms related to their injuries. Unlike the vast majority of developed countries, which have implemented no-fault compensation systems, the United States continues to rely on the tort system to compensate injured research participants—an approach that is no longer morally defensible. Despite decades of US advisory panels advocating for no-fault compensation, little progress has been made. Accordingly, this article proposes a novel and necessary no-fault compensation system, grounded in the ethical notion of compensatory justice. This first-of-its-kind concrete proposal aims to treat like cases alike, offer fair compensation, and disburse compensation with maximum efficiency and minimum administrative cost. It also harmonizes national and international approaches—an increasingly important goal as research becomes more globalized, multi-site trials grow in number, and institutions and sponsors in the United States move to single-IRB review

Perinatal risk factors for Developmental Coordination Disorder

The aetiology of mild motor disability (MMD) is a complex issue and as yet is poorly understood. The aim of this study was to identify the prevalence of perinatal risk factors in a cohort of 10-year-old boys and girls with (n = 362) and without (n = 1193) MMD. Among the males with MMD there was a higher prevalence of postpartum haemorrhage, caesarean section, low birth weight and stressful first year of life. Among the females with MMD, there was a higher prevalence of essential hypertension, anaemia, and threatened pre-term. Multivariable logistic regression revealed gender (male), anaemia, threatened pre-term birth (if female), and hypertension (if female) weakly explained MMD at 10 years. These results underscore the importance of considering gender differences in order to better understand the multiple influences on motor development