contributions. First, we suggest strategic IR are capable of producing new products when certain conditions are met regarding asymmetry, reciprocity, and efficiency. Second, the present findings indicate sport organizations rich in resources may be slower to establish additional IR because of resource buffers
Chad Seifried, Brian Soebbing and Kwame J.A. Agyemang
Ronald J. Maughan, Louise M. Burke, Jiri Dvorak, D. Enette Larson-Meyer, Peter Peeling, Stuart M. Phillips, Eric S. Rawson, Neil P. Walsh, Ina Garthe, Hans Geyer, Romain Meeusen, Luc van Loon, Susan M. Shirreffs, Lawrence L. Spriet, Mark Stuart, Alan Vernec, Kevin Currell, Vidya M. Ali, Richard G.M. Budgett, Arne Ljungqvist, Margo Mountjoy, Yannis Pitsiladis, Torbjørn Soligard, Uğur Erdener and Lars Engebretsen
-trained athletes ( Jones, 2014b ). Beta-Alanine Overview Beta-alanine augments intracellular buffering capacity, having potential beneficial effects on sustained high-intensity exercise performance. Mechanism A rate-limiting precursor to the endogenous intracellular (muscle) buffer, carnosine; the immediate
Stiliani Ani Chroni, Frank Abrahamsen, Eivind Skille and Liv Hemmestad
; (3) the sports directors recruit with the organizational culture in mind. The work of the participating sports directors can be summarised as being the main support for the coach while they also act as a buffer between administrative and sports issues. The findings are presented below organized by
Chris Wagstaff, Rebecca Hings, Rebecca Larner and David Fletcher
, organizational, and personal) encountered by sport performers and found that the aforementioned psychological protective factors appear to protect athletes from the potentially negative effect of these stressors. Such findings suggest that psychological resilience buffers against potentially negative responses
Zenzi Huysmans and Damien Clement
suggests that self-compassion may be an adaptive way of coping with stressful events by serving as a buffer against anxiety and a strategy for cognitive reframing. Within sports, empirical evidence supports the value of self-compassion for female athletes. Mosewich, Kowalski, Sabiston, Sedgwick, and Tracy
Luana Farias de Oliveira, Bryan Saunders and Guilherme Giannini Artioli
Sodium bicarbonate (SB) is an ergogenic supplement used to increase blood bicarbonate concentration, buffering capacity and, subsequently, high-intensity exercise capacity and performance ( McNaughton et al., 2016 ). There is a body of evidence indicating that SB is an effective ergogenic
Jacqueline Kerr, Greg Norman, Rachel Millstein, Marc A. Adams, Cindy Morgan, Robert D. Langer and Matthew Allison
Few studies of older adults have compared environmental correlates of walking and physical activity in women who may be more influenced by the environment. Environmental measures at different spatial levels have seldom been compared. Findings from previous studies are generally inconsistent.
This study investigated the relationship between the built environment and physical activity in older women from the Women’s Health Initiative cohort in San Diego County (N = 5401). Built environment measures were created for 3 buffers around participants’ residential address. Linear regression analyses investigated the relationship between the built environment features and self-reported physical activity and walking.
Total walking was significantly positively associated with the walkability index (β = .050: half-mile buffer), recreation facility density (β = .036: 1-mile buffer), and distance to the coast (β = –.064; P-values < .05). Total physical activity was significantly negatively associated with distance to the coast and positively with recreation facility density (β = .036: 1-mile buffer; P < .05).
Although effect sizes were small, we did find important relationships between walkability and walking in older adults, which supports recommendations for community design features to include age friendly elements. More intense physical activity may occur in recreational settings than neighborhood streets.
Alejandra Jauregui, Erica Soltero, René Santos-Luna, Lucia Hernández-Barrera, Simon Barquera, Edtna Jáuregui, Lucie Lévesque, Juan López-Taylor, Luis Ortiz-Hernández and Rebecca Lee
Mexican children often use active commuting to school (ACS). In order to maintain high levels of ACS it is important to understand correlates of ACS in this population. However, most evidence comes from high-income countries (HICs). We examined multilevel correlates of ACS in children attending public schools in 3 Mexican cities.
Information on 1191 children (grades 3 to 5) attending 26 schools was retrieved from questionnaires, neighborhood audits, and geographic information systems data. Multilevel logistic modeling was used to explore individual and environmental correlates of ACS at 400-m and 800-m buffers surrounding schools.
Individual positive correlates for ACS included age (6–8 years vs 9–11 years, odds ratio [OR] = 1.5; 6–8 years vs ≥12 years: OR = 2.1) and ≥ 6 adults at home (OR = 2.0). At the 400-m buffer, more ACS was associated with lower walkability (OR = 0.87), presence of posted speed limits (< 6% vs > 12%: OR = 0.36) and crossing aids (< 6% vs 6–20%: OR = 0.25; > 20%: OR = 0.26), as well as higher sidewalk availability (< 70% vs > 90%: OR = 4.5). Similar relationships with speed limits and crossing aids were observed at the 800m buffer.
Findings contrast with those reported in HICs, underscoring the importance of considering the local context when developing strategies to promote ACS. Future studies are needed to replicate these relationships and investigate the longitudinal impact of improving active transportation infrastructure and policies.
Colin A. Zestcott, Uri Lifshin, Peter Helm and Jeff Greenberg
This research applied insights from terror management theory (TMT; Greenberg, Pyszczynski, & Solomon, 1986) to the world of sport. According to TMT, self-esteem buffers against the potential for death anxiety. Because sport allows people to attain self-esteem, reminders of death may improve performance in sport. In Study 1, a mortality salience induction led to improved performance in a “one-on-one” basketball game. In Study 2, a subtle death prime led to higher scores on a basketball shooting task, which was associated with increased task-related self-esteem. These results may promote our understanding of sport and provide a novel potential way to improve athletic performance.
Jun-Hyun Kim, Chanam Lee, Norma E. Olvera and Christopher D. Ellis
Childhood obesity and its comorbidities have become major public health challenges in the US. While previous studies have investigated the roles of land uses and transportation infrastructure on obesity, limited research has examined the influence of landscape spatial patterns. The purpose of this study was to examine the association between landscape spatial patterns and obesity in Hispanic children.
Participants included 61 fourth- and fifth-grade Hispanic children from inner-city neighborhoods in Houston, TX. BMI z-scores were computed based on objectively-measured height and weight from each child. Parental and child surveys provided sociodemographic and physical activity data. Landscape indices were used to measure the quality of landscape spatial patterns surrounding each child’s home by utilizing Geographic Information Systems and remote sensing analyses using aerial photo images.
After controlling for sociodemographic factors, in the half-mile airline buffer, more tree patches and well-connected landscape patterns were negatively correlated with their BMI z-scores. Furthermore, larger sizes of urban forests and tree patches were negatively associated with children’s BMI z-scores in the half-mile network buffer assessment.
This study suggests that urban greenery requires further attention in studies aimed at identifying environmental features that reduce childhood obesity.