Three-dimensional kinematics of the lower limbs during forward ice hockey skating

The objectives of the study were to describe lower limb kinematics in three dimensions during the forward skating stride in hockey players and to contrast skating techniques between low- and high-calibre skaters. Participant motions were recorded with four synchronized digital video cameras while wearing reflective marker triads on the thighs, shanks, and skates. Participants skated on a specialized treadmill with a polyethylene slat bed at a self-selected speed for 1 min. Each participant completed three 1-min skating trials separated by 5 min of rest. Joint and limb segment angles were calculated within the local (anatomical) and global reference planes. Similar gross movement patterns and stride rates were observed; however, high-calibre participants showed a greater range and rate of joint motion in both the sagittal and frontal planes, contributing to greater stride length for high-calibre players. Furthermore, consequent postural differences led to greater lateral excursion during the power stroke in high-calibre skaters. In conclusion, specific kinematic differences in both joint and limb segment angle movement patterns were observed between low- and high-calibre skaters.     

Soccer and media in Brazil

This essay analyzes the complex relations between soccer and media in Brazil. Both massmedia and sports arrived in Brazil at the same time, in the late nineteenth century, both associated with the values of modernity in urban centres. It discusses the media coverage of the World Cup and data regarding audiences in particular. The World Cup is considered to be a very important social fact in contemporary Brazilian culture, and since its beginning, the World Cup has been available in Brazil exclusively through the mass media. Since the first international radio transmissions in the late 1930s, Brazil’s matches reached outstanding audience numbers. In the last three World Cups, the share of the total audience for the matches was around 95%, something like 110 million viewers per match, on average. The essay discusses the media’s role in projecting Brazilian football.