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Nadja Willinger, James Steele, Lou Atkinson, Gary Liguori, Alfonso Jimenez, Steve Mann and Elizabeth Horton

Background: Structured physical activity (PA) interventions (ie, intentionally planned) can be implemented in a variety of facilities, and therefore can reach a large proportion of the population. The aim of the authors was to summarize the effectiveness of structured interventions upon PA outcomes, in addition to proportions of individuals adopting and maintaining PA, and adherence and retention rates. Methods: Systematic review with narrative synthesis and exploratory meta-analyses. Twelve studies were included. Results: Effectiveness on PA levels during adoption (pre- to first time point) showed a trivial standardized effect (0.15 [−0.06 to 0.36]); during maintenance (any time point after the first and >6 mo since initiation) the standardized effect was also trivial with a wide interval estimate (0.19 [−0.68 to 1.07]). Few studies reported adoption (k = 3) or maintenance rates (k = 2). Retention at follow-up did not differ between structured PA or controls (75.1% [65.0%–83.0%] vs 75.4% [67.0%–82.3%]), nor did intervention adherence (63.0% [55.6%–69.6%] vs 77.8% [19.4%–98.1%]). Conclusion: Structured PA interventions lack evidence for effectiveness in improving PA levels. Furthermore, though retention is often reported and is similar between interventions and controls, adoption, maintenance, and adherence rates were rarely reported rendering difficulty in interpreting results of effectiveness of structured PA interventions.

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Adam Vanzella-Yang and Tobias Finger

Coed team sports typically offer different experiences for women and men. Though scholars have documented gender imbalances in participation within such teams, the social psychological processes at play and the broader consequences of unequal participation have rarely been explored. In this paper, the authors revisit coed team sports through the lens of status construction theory and expectation states theory to suggest that coed teams reinforce gendered notions of worth, prestige, and competence in the field of sport. The authors draw on research showing that mixed-sex settings where people must cooperate to achieve a common goal are especially prone to the reproduction of gender stereotypes. This paper builds bridges between two subfields of sociology and illuminates gender dynamics in a coed sport that has not been previously studied (futsal).

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Jack Hagyard, Jack Brimmell, Elizabeth J. Edwards and Robert S. Vaughan

Inhibitory control may be vital in elite sport. The authors examined the link between athletic expertise, inhibitory control, and sport performance in a two-part quasi experiment. Inhibitory control was indexed using the Stop-Signal Task, athlete expertise was categorized on literary recommendations, and sport performance was assessed using athlete and coach ratings. Study 1 examined cross-sectional and longitudinal patterns of inhibitory control across athletic expertise. Study 2 investigated whether the inhibitory control–sport performance relationship was moderated by expertise. Study 1 showed that expertise was linked to greater inhibitory control cross-sectionally and longitudinally. Study 2 revealed that expertise was related to superior performance on the Stop-Signal Task and athlete and coach performance ratings, and this relationship was moderated by athletic expertise. Inhibitory control relates to sport performance, increases with greater athlete expertise, and develops longitudinally. Long-term participation in sport may bring about changes in inhibitory control, which may lead to improved sport performance.

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Robert E. Rinehart

The avant-garde has much to offer sport studies and many paths to explore for sport studies’ scholars. In this article, I makes a case for the use of the avant-garde as a metaphor for sport studies, sport scholars, and the public at large. To do this, I sketch out some of the foundational and pertinent characteristics of the avant-garde, provides exemplars from art, considers the similarities between sport and art (in terms of an avant-garde metaphor), and provides some exemplars from sport.

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Samantha King and Gavin Weedon

This article raises the ecological substance and relational co-constitution of bodies as a generative question for sociologists of sport and physical culture. It proceeds from our observation that recent research on the materiality of athletic bodies, and on the environmental issues in which sport is implicated, tends to run on parallel tracks. By exploring how biological, environmental, and social natures cohere in the making and unmaking of healthy bodies, our aim is to connect and extend these vibrant areas of research. We do so by developing the concept of “ecological embodiment,” a descriptor for a fluid state of becoming and a sensibility for thinking about hierarchical socioecological entanglements. To illustrate this concept, we draw on a study of whey protein powder, a key ingredient in contemporary fitness cultures.

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Alana Thomson, Kristine Toohey and Simon Darcy

Sport event studies have demonstrated that relevant stakeholders must share objectives and coordinate efforts to leverage a large-scale sport event to secure positive legacies. However, the challenging and complex task of collaboration between networks of diverse organizational stakeholders to secure legacies has received little scholarly attention. In this conceptual paper, the authors explore, through a political economy lens, differences between the political economies of sports and sport events pertaining to mass sport participation legacies. The authors focus on the mesolevel and consider how divergences in political economy elements—structure and context, stakeholders and ideas/incentives, and bargaining processes—influence the likelihood of mass sport participation legacies from large-scale sport events. The authors suggest a need for event legacy stakeholders to engage more meaningfully with the complexities surrounding securing mass sport participation legacies. In addition, they provide pragmatic, actionable implications for policy and practice to assist stakeholders in addressing the challenges they face to maximize legacy outcomes.

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Alannah K.A. McKay, Peter Peeling, David B. Pyne, Nicolin Tee, Marijke Welveart, Ida A. Heikura, Avish P. Sharma, Jamie Whitfield, Megan L. Ross, Rachel P.L. van Swelm, Coby M. Laarakkers and Louise M. Burke

This study implemented a 2-week high carbohydrate (CHO) diet intended to maximize CHO oxidation rates and examined the iron-regulatory response to a 26-km race walking effort. Twenty international-level, male race walkers were assigned to either a novel high CHO diet (MAX = 10 g/kg body mass CHO daily) inclusive of gut-training strategies, or a moderate CHO control diet (CON = 6 g/kg body mass CHO daily) for a 2-week training period. The athletes completed a 26-km race walking test protocol before and after the dietary intervention. Venous blood samples were collected pre-, post-, and 3 hr postexercise and measured for serum ferritin, interleukin-6, and hepcidin-25 concentrations. Similar decreases in serum ferritin (17–23%) occurred postintervention in MAX and CON. At the baseline, CON had a greater postexercise increase in interleukin-6 levels after 26 km of walking (20.1-fold, 95% CI [9.2, 35.7]) compared with MAX (10.2-fold, 95% CI [3.7, 18.7]). A similar finding was evident for hepcidin levels 3 hr postexercise (CON = 10.8-fold, 95% CI [4.8, 21.2]; MAX = 8.8-fold, 95% CI [3.9, 16.4]). Postintervention, there were no substantial differences in the interleukin-6 response (CON = 13.6-fold, 95% CI [9.2, 20.5]; MAX = 11.2-fold, 95% CI [6.5, 21.3]) or hepcidin levels (CON = 7.1-fold, 95% CI [2.1, 15.4]; MAX = 6.3-fold, 95% CI [1.8, 14.6]) between the dietary groups. Higher resting serum ferritin (p = .004) and hotter trial ambient temperatures (p = .014) were associated with greater hepcidin levels 3 hr postexercise. Very high CHO diets employed by endurance athletes to increase CHO oxidation have little impact on iron regulation in elite athletes. It appears that variations in serum ferritin concentration and ambient temperature, rather than dietary CHO, are associated with increased hepcidin concentrations 3 hr postexercise.

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Erianne A. Weight, Elizabeth Taylor, Matt R. Huml and Marlene A. Dixon

As thousands of professionals are drawn to work in the sport industry known for celebrity, action, and excitement, a growing body of literature on the industry’s culture describes a field fraught with burnout, stress, and difficulty balancing work–family responsibilities. Given this contradiction, there is a need to better understand employee experiences. Thus, the authors utilized a human capital framework to develop employee archetypes. Results from a latent cluster analysis of National Collegiate Athletic Association athletics department employees (N = 4,324) revealed five distinct employee archetypes utilizing inputs related to human capital development and work experiences (e.g., work–family interface, work engagement, age). Consistent with creative nonfiction methodology, results are presented as composite narratives. Archetypes follow a career arc from early-career support staff to late-career senior leaders and portray an industry culture wherein the human capital is largely overworked, underpaid, and replete with personal sacrifice and regret.

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Denys Batista Campos, Isabella Christina Ferreira, Matheus Almeida Souza, Macquiden Amorim Jr, Leonardo Intelangelo, Gabriela Silveira-Nunes and Alexandre Carvalho Barbosa

Objective: To examine the selective influences of distinct acceleration profiles on the neuromuscular efficiency, force, and power during concentric and eccentric phases of isoinertial squatting exercise. Design: Cross-sectional study. Setting: Biomechanics laboratory of the university. Participants: A total of 38 active adults were divided according to their acceleration profiles: higher (n = 17; >2.5 m/s2) and lower acceleration group (n = 21; <2.5 m/s2). Intervention: All subjects performed squats until failure attached to an isoinertial conic pulley device monitored by surface electromyography of rectus femoris, vastus medialis, vastus lateralis, biceps femoris, and semitendinosus. Main Outcome Measures: An incremental optical encoder was used to assess maximal and mean power and force during concentric and eccentric phases. The neuromuscular efficiency was calculated using the mean force and the electromyographic linear envelope. Results: Between-group differences were observed for the maximal and mean force (P range = .001–.005), power (P = .001), and neuromuscular efficiency (P range = .001–.03) with higher significant values for the higher acceleration group in both concentric and eccentric phases. Conclusion: Distinct acceleration profiles affect the neuromuscular efficiency, force, and power during concentric and eccentric phases of isoinertial squatting exercise. To ensure immediate higher levels of power and force output without depriving the neuromuscular system, acceleration profiles higher than 2.5 m/s2 are preferable. The acceleration profiles could be an alternative to evolve the isoinertial exercise.