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Mark Dyreson and Jaime Schultz

Since the 1981 publication of Perspectives on the Academic Discipline of Physical Education, the history of physical activity has secured a prominent place in the field of kinesiology. Yet, despite encouraging signs of growth, the subdiscipline still remains an undervalued player in the “team scholarship” approach. Without the integration of historical sensibilities in kinesiology’s biggest questions, our understanding of human movement remains incomplete. Historians of physical activity share many “big questions” and “hot topics” with researchers in other domains of kinesiology. Intriguing possibilities for integrating research endeavors between historians and scholars from other domains beckon, particularly as scientists share the historical fascination with exploring the processes of change over time.

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Kevin E. Miller, Timothy R. Kempf, Brian C. Rider, and Scott A. Conger

Background: Previous research studies have found that heart rate monitors that predict maximal oxygen consumption (V˙O2max) are valid for males but overestimate V˙O2max in females. Inaccurate self-reported physical activity (PA) levels may affect the validity of the prediction algorithm used to predict V˙O2max. Purpose: To investigate the validity of the Polar M430 in predicting V˙O2max among females with varying PA levels. Methods: Polar M430 was used to predict V˙O2max (pV˙O2max) for 43 healthy female study participants (26.9 ± 1.3 years), under three conditions: the participant’s self-selected PA category (sPA), one PA category below the sPA (sPA − 1), and one category above the sPA (sPA + 1). Indirect calorimetry was utilized to measure V˙O2max (mV˙O2max) via a modified Astrand treadmill protocol. Repeated-measures analyses of covariance using age and percentage of body fat as covariates were used to detect differences between groups. Bland–Altman plots were used to assess the precision of the measurement. Results: pV˙O2max was significantly correlated with mV˙O2max (r = .695, p < .001). The mean values for pV˙O2max and mV˙O2max were 44.58 ± 9.29 and 43.98 ± 8.76, respectively. No significant differences were found between mV˙O2max, pV˙O2max, sPA – 1, and sPA + 1 (p = .492). However, the Bland–Altman plots indicated a low level of precision with the estimate. Conclusions: The Polar M430 was a valid method to predict V˙O2max across different sPA levels in females. Moreover, an under/overestimation in sPA had little effect on the predicted V˙O2max.

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Nicola K. Thomson, Lauren McMichan, Eilidh Macrae, Julien S. Baker, David J. Muggeridge, and Chris Easton

Modern smartphones such as the iPhone contain an integrated accelerometer, which can be used to measure body movement and estimate the volume and intensity of physical activity. Objectives: The primary objective was to assess the validity of the iPhone to measure step count and energy expenditure during laboratory-based physical activities. A further objective was to compare free-living estimates of physical activity between the iPhone and the ActiGraph GT3X+ accelerometer. Methods: Twenty healthy adults wore the iPhone 5S and GT3X+ in a waist-mounted pouch during bouts of treadmill walking, jogging, and other physical activities in the laboratory. Step counts were manually counted, and energy expenditure was measured using indirect calorimetry. During two weeks of free-living, participants (n = 17) continuously wore a GT3X+ attached to their waist and were provided with an iPhone 5S to use as they would their own phone. Results: During treadmill walking, iPhone (703 ± 97 steps) and GT3X+ (675 ± 133 steps) provided accurate measurements of step count compared with the criterion method (700 ± 98 steps). Compared with indirect calorimetry (8 ± 3 kcal·min−1), the iPhone (5 ± 1 kcal·min−1) underestimated energy expenditure with poor agreement. During free-living, the iPhone (7,990 ± 4,673 steps·day−1) recorded a significantly lower (p < .05) daily step count compared with the GT3X+ (9,085 ± 4,647 steps·day−1). Conclusions: The iPhone accurately estimated step count during controlled laboratory walking but recorded a significantly lower volume of physical activity compared with the GT3X+ during free-living.

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Kim Gammage, Jeff Caron, Alyson Crozier, Alison Ede, Christopher Hill, Sean Locke, Desi McEwan, Kathleen Mellano, Eva Pila, Matthew Stork, and Svenja Wolf

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Chantelle Zimmer, Meghan H. McDonough, Jennifer Hewson, Ann Toohey, Cari Din, Peter R.E. Crocker, and Erica V. Bennett

Little is known about how social participation can be facilitated among older adults in group physical activity and its psychosocial benefits that contribute to successful aging. This study aimed to understand older adults’ experiences with social participation in group physical activity programs. Using interpretive description methodology, 16 observations, eight focus groups, and two interviews with participants unable to attend focus groups were conducted with adults 55 years and older attending programs across four recreation facilities. Group programs were found to influence social participation through (a) a meaningful context for connecting and (b) instructors’ expectations of social interaction. Social participation in these programs addressed psychosocial needs by (c) increasing social contact and interaction, (d) fostering social relationships and belonging, and (e) promoting regular engagement. Training for instructors should include balancing the physical aspects of program delivery with the social, while also considering older adults’ diverse needs and preferences for social interaction.

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R. Scott Kretchmar and Cesar R. Torres

The philosophy of sport has flourished in some ways and struggled in others since the publication of George Brooks’s anthology Perspectives on the Academic Discipline of Physical Education: A Tribute to G. Lawrence Rarick in 1981. In this article, the authors trace challenges faced by the philosophy of sport, discuss trends and hot topics, analyze opportunities for integrations with other subdisciplines, and speculate on the current issues in and the future of the philosophy of sport. While they conclude that the philosophy of sport’s prospect within kinesiology is uncertain and that it has work to do, they also conclude that this subdiscipline is uniquely positioned to provide kinesiology with the clarity and unity of purpose it needs.

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Benjamin J.I. Schellenberg and Jérémie Verner-Filion

Previous research has shown that the highs and lows of sport fandom are more extreme for fans with strong levels of obsessive passion. The authors tested if this amplification effect applied to how hockey fans felt throughout a National Hockey League (NHL) playoff series. Fans of the Winnipeg Jets (N = 57) reported levels of harmonious and obsessive passion prior to the start of the 2019 NHL playoffs and then reported their feelings the day after each game of the first playoff round. The results supported the amplification hypothesis by showing that the impact of game result on both positive and negative feelings the day after a game was more extreme for fans with high obsessive passion. This moderating effect, however, appeared to be driven primarily by responses to losses.

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Jeffrey Martin and Drew Martin

In the current study, a 20-year span of 80 issues of articles (N = 196) in Adapted Physical Activity Quarterly (APAQ) were examined. The authors sought to determine whether quantitative research published in APAQ, based on sample size, was underpowered, leading to the potential for false-positive results and findings that may not be reproducible. The median sample size, also known as the N-Pact Factor (NF), for all quantitative research published in APAQ was coded for correlational-type, quasi-experimental, and experimental research. The overall median sample size over the 20-year period examined was as follows: correlational type, NF = 112; quasi-experimental, NF = 40; and experimental, NF = 48. Four 5-year blocks were also analyzed to show historical trends. As the authors show, these results suggest that much of the quantitative research published in APAQ over the last 20 years was underpowered to detect small to moderate population effect sizes.

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Jay Coakley

This article tells the story of the sociology of sport over the last 4 decades. In the process, it identifies key developments and trends in the field, the questions and topics that have shaped research and the production of knowledge about sports as social phenomena, the challenges currently facing the sociology of sport, and what may happen to the field over the next 40 years.

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Pamela Haibach-Beach, Melanie Perreault, Lauren J. Lieberman, and Alexandra Stribing

Children with CHARGE syndrome, an extremely complex, highly variable genetic disorder, are significantly delayed in the onset of their motor milestones in comparison with children without disabilities due to sensory and motor deficits as well as lengthy hospitalizations and reduced physical activity. Currently, the role of parents’ perceptions and participation in the motor development of their child with CHARGE is unknown. The purpose of this study was to examine the associations between parents’ perceptions and their child’s motor competence, comparing parents of children with and without CHARGE syndrome. Participants included 33 children with CHARGE and 38 children without disabilities. Parents completed the Child’s Movement Skills Research parent survey and children were assessed on their gross motor skills. Parental ratings of locomotor ability and time spent participating with their child predicted the locomotor, ball skill, and total motor skill scores in the CHARGE group. Control group parents’ rating of ball scores predicted ball skill and total skill scores. The results indicate that parents may play an important role in their child with CHARGE syndrome’s motor development. Parents who are more involved with their child’s movement activities can positively influence their motor competence.