Emotional responses during repeated sprint intervals performed on level,downhill and uphill surfaces

The purpose of this study was to test emotional responses during sprint intervals performed on a level, down and up surface. Fifty trained participants performed a maximal effort during a 60-m sprint and 10 repetitions of 60 m running sprints on a level, down and up surface on a 5.9% slope. Running speeds, emotional responses and heart rate were measured. Self-selected speeds were correlated with the rating of perceived exertion, the affective balance, the desire to stop and the resources needed for the task in all conditions whereas the pleasure, the desire to continue and the capacity to realise the task were correlated with speeds only during level and uphill running. Mean values of emotional parameters were significantly different (P < 0.05) during running on a flat surface, downhill and uphill. When the gradient of running surface is changed, the pattern of emotional responses was just translated, i.e. most of the slope between the evolution of emotional parameters and the repetitions were not significantly different whereas Y-intercepts were different.

Consented effort is highly correlated with the resources needed for the task (P < 0.001, r² = 0.72). We propose that the difference in the resources needed for the task between level, downhill and uphill running (F _{2, 1499} = 166.5, P < 0.001, Eta² = 0.18) is the most important key that explains our results.     

A six-year monitoring case study of a top-10 cycling Grand Tour finisher

This study analysed the evolution of the physical potential of a twice top-10 Grand Tour cycling finisher (Tour de France and Vuelta a España) whose training was monitored between the ages of 18 and 23 years. The world-class cyclist’s power output (PO) data and training indices were analysed over six years to determine the evolution of his record power profile and training load (TL), which were estimated by using the session rating of perceived exertion (RPE) method. The total annual duration and TL increased through six seasons by 79% and 83%, respectively. The record POs in all exercise intensity zones improved over the six years. The increases in TL, monotony (+34%) and strain (+162%) from the junior category to the world-class level significantly correlated with an improvement in his aerobic potential, which was characterised by an increase in the record POs between 5 min and 4 h. This case study of the performance level and training parameters of a world-class cyclist provides comprehensive insight into the evolution of a cyclist to the top level. Furthermore, determining the record power profile of this athlete over six competitive seasons illuminates the maturation of the physical potential of a top-10 Grand Tour finisher.     

Effect of environmental feedbacks on pacing strategy and affective load during a self-paced 30 min cycling time trial

The purpose of this study was to analyze the pacing strategy and its affective consequences during self-paced cycling time trials (TT) performed at different severity of hypoxia. Eight competitive cyclists performed five 30 min self-paced TTs at their best performance in the following conditions: 1) normobaric normoxia (NN_SL); 2) normobaric hypoxia under two simulated altitudes: 2000 m (NH₂₀₀₀) and 3500 m (NH₃₅₀₀) and 3) normobaric hypoxia but the cyclists were deceived and thought to be at sea level for 2000 m (DecNH₂₀₀₀) and 3500 m (DecNH₃₅₀₀). Power Output (PO), oxygen uptake (VO₂), and blood lactate concentration ([La]) were recorded to assess exercise intensity and physiological adaptations. The rate of perceived exertion (RPE) and pleasure were measured with a CR10 Borg scale to evaluate the affective load (AL). PO and VO₂ decreased with the severity of hypoxia but no significantly difference on performance was measured between deceived and real conditions, except for pacing strategy. The started intensity depends on the exercise expectations, but PO was rapidly adjusted with the physiological constraints and the rate of increase of RPE. Finally, AL did not reach maximal values so that the athletes sustained a physiological and emotional reserve to perform a final spurt.     

Book Review: Foundations for the next era of elementary mathematics teacher education. Yiping Li,Roger E. Howe,W. James Lewis,and James J. Madden (Eds.) (2021) Developing mathematical proficiency for elementary instruction

Educational Studies in Mathematics -     

Managing Dialectics to Make a Difference: Tension Management in a Community-Building Organization

This article is an ethnographic report of the dialectic tension management practices of a community-building organization called the Nehemiah Group. ¹ The Nehemiah Group, in 2009, changed their name to the Nehemiah Network to reflect their expanded involvement of business leaders (Our History, n.d. Our History . ( n.d. ). Retrieved from http://www.nehemiahnetwork.org/about  [Google Scholar]). This group unites local churches to serve the community. This three-year participant-observation study documents how group members manage two primary and intertwined dialectic tensions: noncooperation-cooperation and unity-division. Members use multiple practices to manage these tensions and other intertwined tensions: They construct narratives to voice moral issues, to alternate between tension poles to address pragmatic obstacles, to frame tensions as complementary through segmentation, and rely on prayer rituals to reframe tensions. From this analysis, three implications follow: (a) moral narratives serve to construct framing options, (b) a larger discursive history is utilized to create counternarratives, and (c) metadiscursive practices rely on rituals to manage tensions.     

Teachers in Schools with Low Socioeconomic Composition: Are They Really that Different?

This article aims to assess whether differences in teacher characteristics vary with differences in socioeconomic compositions of schools. We conducted correlation analyses on administrative data from the French-speaking education system in Belgium. This database regroups more than 20,000 teachers in 1,630 elementary schools. We selected indicators to measure the link between schools’ socioeconomic composition and a set of dimensions of teachers’ profile such as experience, job security, and stability. The results confirm that some of these dimensions are linked to the school composition. The findings highlight the relevance of considering segmentation of the school market when studying the topic.     

Frankish Captives in Mamlūk Cairo

Latin presence in the Middle East came to an end with the fall of Acre in 690/1291. Among the last prisoners, Roger of Stanegrave, who gave testimony of his captivity in Cairo, was released around 715/1315. Therefore, how can we explain that Egyptian chroniclers kept on telling the life and tribulations of “Frankish captives” (asārā min al-Afranj) in Cairo as late as the last decades of the fourteenth century? This article looks first at the conditions of the Latin prisoners in Mamlūk Cairo and at their forced labour on the building sites of the city. It investigates afterwards the astonishing life and business of their descendants, trading wine and dealing with entertainment and prostitution in the city centre of Cairo, before being confronted with repression by Mamlūk authorities and being scattered over the most disreputable areas of the city. The history of Cairo and its urban fabric gives a unique opportunity to bring to light the life of people still referred to as “Frankish captives”, one century after the end of the crusader wars, and to understand how they finally became indigenous.