Building Bridges: A Conversation between Friends, about Language, Laziness, and Long-distance Running

This conversation took place in a shared Google Doc over several occasions in April and early May 2021, between friends and colleagues, artists and writers, Hannah Clarkson and Matilda Tucker, in the context of an ongoing experiment in collaborative writing. In their individual and collective practices, Clarkson and Tucker explore potential embodiments in language(s) of thinking and dwelling in the ‘here and elsewhere’ of places and spaces they may not physically be in, across cultural, geographical and/or emotional distance. They are interested in how language can be employed as a tool for empathy beyond concrete linguistic understanding; how translation as method opens up to modalities of fictioning and collective storytelling; and writing as an experiment in sharing everyday struggles and building collective narratives of care. An attempt to bridge gaps between the here and elsewhere of Stockholm, Berlin and all the other places that in this time of pandemic we cannot be, the text below is not a conclusion but a conversation. It is a thinking out loud - or rather, on screen - together, on themes of language and translation; belonging and resisting; work and laziness; former and formless selves.

Influence of some anthropometric, motor and bone mass parameters on short distance running

The knowledge on morphological development and their impact on motor skills in short distance athletes should be one of the main preoccupations of athletics coaches, because any scientific research in the field of physical culture and sports is concerned with proving the development and evaluation of anthropological characteristics which are responsible in achieving success in athletics.The purpose of this paper is to prove the impact of some anthropometric, motor-specific characteristics and those of bone weight in short distance running, specifically in 100 meters, with students aged 19 ± 6 years, of the Faculty of Physical Education and Sports in Pristina.The sample of this research included a total of 75 students aged 19 of the Faculty of Physical Education and Sports in Pristina.The variables which were applied in this research were 7 anthropometric variables and 6 motor variables and 1 specific motor variable.Regression analysis in the manifest space was applied to determine the relationship between predictive variables (anthropometric and motor characteristics) and criterion variable (100 m running).

Loss of Hypoxia Signaling Limits Physiologic and Muscle Adaptations to Aerobic Exercise in Aging

To assess the differential effects of exercise with age, Young (Y, 10-12 weeks) and Old (O, 23-25 months) mice were subjected to regimented treadmill running or no regimented exercise. Y, trained mice experienced a significant increase in maximal distance running, maximal speed of running, and lean muscle mass in comparison to age-matched, untrained controls. O mice did not improve significantly in any of these measures following training. Transcriptome analysis of gastrocnemius from Y mice demonstrated differential regulation of 120 genes with exercise. None of these genes were similarly regulated in the O group. Genes most upregulated following exercise in Y mice were direct targets of the hypoxia signaling pathway. Immunoblotting demonstrated that aryl hydrocarbon receptor nuclear translocator (ARNT), a critical regulator of hypoxia signaling, increased 3-fold with exercise in Y mice, but this increase was absent in O mice following exercise. To assess whether this loss of ARNT in O muscle impaired the exercise response, we generated a mouse with inducible, skeletal muscle-specific knockout of ARNT (ARNT muscle (m) KO). Following regimented exercise, ARNT mKO mice did not improve maximal distance running, maximal running speed, or lean muscle mass in comparison to untrained ARNT mKO mice. Littermate, age-matched ARNT wild type mice increased significantly in all of these measures following training. Administration of ML228, an ARNT agonist, increased maximal running distance and speed in response to exercise training in O mice. These results suggest that restoration of ARNT and hypoxia signaling may restore the physiologic response to exercise in aging.

Pacing Profiles of Middle-Distance Running World Records in Men and Women

The aims of the current study were to compare the pacing patterns of all-time 800 m, 1500 m and mile running world records (WRs) and to determine whether differences exist between sexes, and if 800 m and 1500 m WRs were broken during championship or meet races. Overall and lap times for men and women’s 800 m, 1500 m, and mile WRs from World Athletics were collected when available and subsequently compared. A fast initial 200 m segment and a decrease in speed throughout was found during 800 m WRs. Accordingly, the first 200 m and 400 m were faster than the last 200 m and 400 m, respectively (p < 0.001, 0.77 ≤ ES ≤ 1.86). The first 400 m and 409 m for 1500 m and mile WRs, respectively, were faster than the second lap (p < 0.001, 0.74 ≤ ES ≤ 1.46). The third 400 m lap was slower than the last 300 m lap and 400 m lap for 1500 m and mile WRs, respectively (p < 0.001, 0.48 ≤ ES ≤ 1.09). No relevant sex-based differences in pacing strategy were found in any event. However, the first 409 m lap was faster than the last 400 m lap for men but not for women during mile WRs. Women achieved a greater % of WRs than men during championships (80% vs. 45.83% in the 800 m, and 63.63% vs. 31.58% in the 1500 m, respectively). In conclusion, positive, reverse J-shaped and U-shaped pacing profiles were used to break 800 m, men’s mile and 1500 m, and women’s mile WRs, respectively. WRs are more prone to be broken during championships by women than men.

Foot Strike Patterns During Overground Distance Running: A Systematic Review and Meta-Analysis

Background Investigations of foot strike patterns during overground distance running have foci on prevalence, performance and change in foot strike pattern with increased distance. To date, synthesised analyses of these findings are scarce. Objective The key objectives of this review were to quantify the prevalence of foot strike patterns, assess the impact of increased running distance on foot strike pattern change and investigate the potential impact of foot strike pattern on performance. Methods Relevant peer-reviewed literature was obtained by searching EBSCOhost CINAHL, Ovid Medline, EMBASE and SPORTDiscus (inception-2021) for studies investigating foot strike patterns in overground distance running settings (> 10 km). Random effects meta-analyses of prevalence data were performed where possible. Results The initial search identified 2210 unique articles. After removal of duplicates and excluded articles, 12 articles were included in the review. Meta-analysis of prevalence data revealed that 79% of long-distance overground runners rearfoot strike early, with prevalence rising to 86% with increased distance. In total, 11% of runners changed foot strike pattern with increased distance and of those, the vast majority (84%) do so in one direction, being non-rearfoot strike to rearfoot strike. Analysis of the relationship between foot strike pattern and performance revealed that 5 studies reported a performance benefit to non-rearfoot strike, 1 study reported a performance benefit to non-rearfoot strike in women but not men, 4 studies reported no benefit to non-rearfoot strike or rearfoot strike, and no studies reported a performance benefit of rearfoot strike over non-rearfoot strike. Conclusion Most overground distance runners rearfoot strike early, and the prevalence of this pattern increases with distance. Of those that do change foot strike pattern, the majority transition from non-rearfoot to rearfoot. The current literature provides inconclusive evidence of a competitive advantage being associated with long-distance runners who use a non-rearfoot strike pattern in favour of a rearfoot strike pattern.