Treadmill based reference running data for healthy subjects is dependent on speed and morphological parameters

ObjectiveTo obtain spatiotemporal and dynamic running parameters of healthy participants and to identify relationships between running parameters, speed, and physical characteristics.MethodA dynamometric treadmill was used to collect running data among 417 asymptomatic subjects during speeds ranging from 10 to 24 km/h. Spatiotemporal and dynamic running parameters were calculated and measured.ResultsResults of the analyses showed that assessing running parameters is dependent on running speed. Body height correlated with stride length (r = 0.5), cadence (r = −0.5) and plantar forefoot force (r = 0.6). Body mass also had a strong relationship to plantar forefoot forces at 14 and 24 km/h and plantar midfoot forces at 14 and 24 km/h.ConclusionThis reference data base can be used in the kinematic and kinetic evaluation of running under a wide range of speeds.     

Volunteering in older adulthood is associated with activity engagement and cognitive functioning

ABSTRACT

Introduction: Given evidence that activity engagement in older adulthood can have protective effects on the aging brain, we investigated the idea that volunteering in the community, which often encompasses social, cognitive, and physical activity, might benefit cognition.

Method: Ninety-one retired 65- to 75-year-olds reported their sociodemographic characteristics, wellbeing, volunteering, and activity engagement. They also completed computerized cognitive tests that tapped specific functions known to decline disproportionately with age.

Results: Volunteering at least monthly was associated with better working memory and more social and cognitive activity. Mediation analyses indicated that volunteering was indirectly related to switching performance via cognitive activity. However, the volunteering-working memory association did not depend on activity engagement, leaving the underpinning mechanisms unclear.

Conclusions: These findings provide new insight into positive associations between older people’s volunteering, activity engagement, and cognitive functioning. However, further work is needed to understand the mechanisms that drive volunteering-cognition links, and to establish causality.     

The Geopolitics of Gulf Sport Sponsorship

ABSTRACT

The names of two major Gulf airlines, Qatar Airways and Emirates, have saturated the European football scene for many years, sponsoring some of the most prominent European teams and FIFA itself. These state-backed airlines are also active in motorsports, rugby, cycling, tennis, golf, cricket, and equestrian sport, while several prominent Gulf elites and royal family members have recently taken over major sports franchises in Europe and elsewhere. How should we understand these far-reaching sponsorship agendas in the Gulf? What can they tell us about the politics and ethics of international sport on the Arabian Peninsula? Moving beyond the general readings of Gulf sport sponsorship as an exercise in ‘soft power,’ this article shows how these deals are strategic nodes for diverse actors in the Gulf and in the international sporting community to advance various interests: personal, political, financial, and otherwise. Informed by a critical geopolitics lens that questions the coherence of the ‘state’ as an actor, I ask what it means to say that ‘the Gulf’ sponsors sport, and more specifically investigate the relevant actors behind these sponsorship deals. To do so, this article examines regional and global political economy through a focus on three Gulf airline sponsors, Emirates, Etihad, and Qatar Airways, and three elite sports sponsors—the UAE’s Sheik Mansour, Qatar’s Nasser bin Ghanim Al-Khelaïfi, and Sheikh Nasser of Bahrain. By decentering ‘soft power’ approaches to sport that unduly emphasize the ‘state’ as an actor, this article suggests a more grounded approach to the geopolitics of sport in the Arabian Peninsula, which simultaneously acknowledges the complicity of Western actors and institutions in the rise of Gulf sports sponsorship deals in the past decade.