Aim: To compare the acute effects of two resistance exercise sessions with different partial blood flow restrictions (BFR) on hemodynamic parameters and cardiac autonomic modulation in older women with metabolic syndrome. Methods: Thirty-nine older women (64.4 ± 4.5 years) were allocated into three groups: BFR0 = resistance exercise (20%, 1 maximum repetition [MR]) + 0% BFR; BFR60 = 20% 1 MR resistance exercise + 60% BFR; and BFR80 = 20% 1MR resistance exercise + 80% BFR. Results: A reduction of 14 mmHg (BFR60 group) and 13 mmHg (BRF80 group) was observed 48 hr after the first exercise session, while vagal modulation was increased in the BRF60 group after 24 and 48 hr. Conclusion: A low-intensity resistance exercise session with 60% and 80% of BFR resulted in blood pressure (systolic, diastolic, and mean) reduction and positive changes on heart rate variability after 24 h of a RE session.
Antonio W.S. Maciel, Leandro M. Pinto, Roberta C.A. Campos, Andressa C. Ferreira, Carlos A.A. Dias-Filho, Carlos J.M. Dias, Flávio de Oliveira Pires, Christiano B. Urtado, Bruno Rodrigues and Cristiano Teixeira Mostarda
Dorthe Dalstrup Jakobsen, Jasper Schipperijn and Jens Meldgaard Bruun
Background: In Denmark, most children are not sufficiently physically active and only a few interventions have been found to increase long-term physical activity among overweight and obese children. The aim of our study was to investigate if children are physically active in correspondence to Danish recommendations after attending a multicomponent-overnight camp. Methods: A questionnaire was developed to estimate children’s physical activity level and behavior and investigate how transport, economy, availability, time, motivation, and knowledge about physical activity affect children’s physical activity level and behavior. Results: In this study, 60.9% of the children did vigorous physical activity (VPA) minimum 30 minutes 3 times per week up to 3 years after camp. Most children were physically active at a sports club (44.3%) and only 5.7% of the children did not participate in physical activity. Parental physical activity and child motivation toward physical activity were significantly (P < .05) associated with children doing VPA. Conclusion: Our findings suggest that 60.9% of children who attended camp engage in VPA after camp, which compared with a recent Danish study, is more frequent than children who did not attend camp. Further investigations are needed to determine the long-term health effects in children attending interventions such as multicomponent-overnight camps.
Kim Gammage, Alyson Crozier, Alison Ede, Christopher Hill, Sean Locke, Eric Martin, Desi McEwan, Kathleen Mellano, Eva Pila, Matthew Stork and Svenja Wolf
Marcelo Gonçalves Duarte, Glauber Carvalho Nobre, Thábata Viviane Brandão Gomes and Rodolfo Novelino Benda
Background: Studies related to the motor performance of children have suggested an interaction between organisms and the environment. Although motor development seems to be similar among people, the behavior is specific to the context that people are part of. Thus, the aim of this study was to compare the fundamental motor skill performance between indigenous (IN) and nonindigenous children. Methods: One hundred and thirteen children (43 IN and 70 nonindigenous children) between 8 and 10 years of age underwent the Test of Gross Motor Development—2. Results: A multivariate analysis showed a significant group main effect on both locomotor (p < .01) and object control (p < .01) performance with large and medium effect sizes (
Fraser Carson, Clara McCormack, Paula McGovern, Samara Ralston and Julia Walsh
This best practice paper reflects on a pilot coach education program designed for women coaching Australian Rules football. Focused on enhancing self-regulation, and underpinned by a growth mindset framework, the “Coach like a Woman” program was delivered to a selected group of female coaches either working in or having been identified with the potential to coach at high-performance levels. This manuscript describes the program content and discusses the key insights identified by the delivery team. Creating a community of practice encouraged the transfer of knowledge and experience between the enrolled coaches, which increased competence and self-confidence. Providing an understanding of behavioral tendencies enhanced positive self-talk and aided self-regulation by the coaches. The delivery of the program and challenges experienced are also discussed. This reflection on the program is provided to assist future developments in coach education.
Xiyao Shan, Pavlos Evangelidis, Takaki Yamagishi, Shun Otsuka, Fumiko Tanaka, Shigenobu Shibata and Yasuo Kawakami
This study investigated (a) site- and direction-dependent variations of passive triceps surae aponeurosis stiffness and (b) the relationships between aponeurosis stiffness and muscle strength and walking performance in older individuals. Seventy-nine healthy older adults participated in this study. Shear wave velocities of the triceps surae aponeuroses at different sites and in two orthogonal directions were obtained in a prone position at rest using supersonic shear imaging. The maximal voluntary isometric contraction torque of the plantar flexors and normal (preferred) and fast (fastest possible) walking speeds (5-m distance) were also measured. The shear wave velocities of the adjoining aponeuroses were weakly associated with plantar flexion torque (r = .23–.34), normal (r = .26), and fast walking speed (r = .25). The results show clear spatial variations and anisotropy of the triceps surae aponeuroses stiffness in vivo, and the aponeurosis stiffness was associated with physical ability in older adults.
Jennifer T. Coletti, Veronica Allan and Luc J. Martin
A child’s first contact with media and culture typically comes from books they are exposed to in the home and at school. The narratives presented contribute to the early reinforcement of gender roles and norms and can greatly influence the way that young girls perceive and experience sport. The purpose of this study was to explore the narratives within sport-based books geared toward a young female audience to determine the extent to which they promote the engagement of girls in sport. A pragmatic literature search was conducted to obtain books that met our inclusion criteria. Books (n = 28) were analyzed based on the age of their intended audience (aged 3–5, 6–8, and 9–12 years) using thematic narrative analysis. Although the authors promoted the engagement of girls in sport, underlying gender stereotypes were nevertheless salient. Across the books, themes involved the emphasis of “feminine” sports as a context for diversity and learning, the need to understand development as a process, the importance of relationships, and implications pertaining to perceptions of capability as female athletes. Most importantly, the application of a critical feminist lens enabled us to identify an underlying theme—the reinforcement of gender stereotypes—that permeated the storylines and served to undermine the potential adaptive messaging intended by authors. These findings suggest the need for greater attention toward the complexity of female sport and a cultural shift in thinking toward gender equity rather than simply increasing sport access for female participants.
Emily A. Roper and José A. Santiago
The purpose of this study was to examine how and how often athletic girls were represented on the cover art of young adult (YA) sport fiction. In this research, 154 YA sport fiction books were analyzed using quantitative content analysis. Using existing sport research and theory focused on women’s representation in sport media, the researchers developed a coding scheme to assess cover art for each of the following categories: (a) presence and racial representation of female character/s on cover; (b) portrayal of female body on cover (whole body, partial body/with head, or partial body/without head); (c) portrayal of female character as active or passive; (d) portrayal of female character in or out of athletic uniform; (e) portrayal of female character in or out of the sport setting; (f) presence of sport equipment; and (g) type of cover. Findings revealed that 81% of the book covers had a female character in which 29% of the covers displayed the whole body, 47% displayed partial body/with head, and 23% displayed partial body/with no head of the female character. Only 0.06% of the book covers had a female character of color. Approximately 31% of the female characters were displayed in active positioning, 58% in athletic attire, and 44% in the sport setting. Of the books reviewed, 55% displayed equipment on the cover. The findings indicate that athletic girls have few images on YA sport fiction cover art that accurately represent their athleticism, and there is a clear absence of diverse representation. It is critical that those responsible for the design and layout of book covers clearly represent active females in action, in uniform, and in the sport context.
Craig Pickering, Dylan Hicks and John Kiely
Elite sprint performances typically peak during an athlete’s 20s and decline thereafter with age. The mechanisms underpinning this sprint performance decline are often reported to be strength-based in nature with reductions in strength capacities driving increases in ground contact time and decreases in stride lengths and frequency. However, an as-of-yet underexplored aspect of Masters sprint performance is that of age-related degradation in neuromuscular infrastructure, which manifests as a decline in both strength and movement coordination. Here, the authors explore reductions in sprint performance in Masters athletes in a holistic fashion, blending discussion of strength and power changes with neuromuscular alterations along with mechanical and technical age-related alterations. In doing so, the authors provide recommendations to Masters sprinters—and the aging population, in general—as to how best to support sprint ability and general function with age, identifying nutritional interventions that support performance and function and suggesting useful programming strategies and injury-reduction techniques.
Julie Freedman, Sally Hage and Paula A. Quatromoni
Male athletes are underrepresented in eating disorders research. This phenomenological study investigated the experiences of male athletes who self-identified as having an eating disorder, disordered eating, or compulsive exercise behaviors. Eight male collegiate athletes were interviewed, and qualitative analysis identified factors associated with the onset and maintenance of disordered behaviors. Among the novel findings was the salient influence of social media as a driver of body dissatisfaction and disordered behaviors. The participants described a perceived sense of control and feeling of pride associated with the use of behaviors, cultural norms in a male sport environment that sustained these behaviors, and a shared belief that, until they experienced a loss of control over their use of behaviors, they would not likely ask for help or seek treatment. These findings have implications for additional research, as well as individual and systems-level strategies for the prevention, screening, and treatment of eating and exercise disorders in male sport.