percentage of AQ already in qualifying positions were 32.1%, 42.9%, and 65.7% at 400 m, 800 m, and 1200 m. Race positions remained more stable throughout 800-m races (Figure 1 ) than through the 1500-m races which visual inspection of data suggests were characterized by a greater degree of positional change
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Fortune Favors the Brave: Tactical Behaviors in the Middle-Distance Running Events at the 2017 IAAF World Championships
Arturo Casado and Andrew Renfree
Dynamic Leap and Balance Test: Ability to Discriminate Balance Deficits in Individuals With Chronic Ankle Instability
Abbis H. Jaffri, Thomas M. Newman, Brent I. Smith, Giampietro L. Vairo, Craig R. Denegar, William E. Buckley, and Sayers J. Miller
establish stability while performing a task. 3 Gambetta and Gray 4 described balance as the most important component in performing athletic activities, because an ability to maintain a stable position is a requisite for every motion in daily life. Balance deficits are frequently observed after lower
An Exploration of Recruitment of Elite Athletes to Coaching Within Federations
Stiliani “Ani” Chroni, Kristen Dieffenbach, and Sigurd Pettersen
a good match Find a good match Resources for a stable start Upon hiring resources Provide handbook (where available) Give clear and precise guides Provide and plan for educational opportunities Plan and support education Fast tracking Provide monitoring, meetings, and feedback Coach the coach
Proximal-to-Distal Sequencing and Coordination Variability in the Volleyball Spike of Elite Youth Players: Effects of Gender and Growth
Ben Serrien, Maggy Goossens, and Jean-Pierre Baeyens
individually. The largest observed ranges were 15 cm, 19 cm, and 18 cm in the anterior-posterior, left-right, and superior-inferior directions, respectively, in year 1 and 15 cm, 14 cm, and 19 cm in year 2. The location of impact was thus always relatively stable (the volume of impact variability was smaller
Randomized Controlled Trial of Primary Health Care Strategies for the Promotion of Leisure-Time Physical Activity Among Older Brazilians
Francini Vilela Novais, Eduardo J. Simoes, Chester Schmaltz, and Luiz R. Ramos
4-year period between cohort baseline and study preintervention stage (study baseline), average minutes of LTPA per week remained more or less stable for subjects in the 3 IGs (ie, MIG, PCG, and CRG), indicating stability in the secular trend. After intervention, average minutes of LTPA per week in
Emotions, Perceived Qualities, and Performance of Rugby Players
Valentina D’Urso, Andreina Petrosso, and Claudio Robazza
This study was mainly designed to contrast the Individual Zones of Optimal Functioning (IZOF) emotion model and the performance profiling approach in predicting performance of rugby players based on normative, individualized, situational, and relatively stable characteristics. Pregame assessments were accomplished in 33 male Italian rugby players of a top-level team over a whole championship, and individual interviews were conducted at the end of the season. Performance differentiation and discrimination between athletes were reached on relatively stable qualities (i.e., constructs), according to predictions within the performance profile framework. Study findings also revealed that emotions modify widely during the game because of external events (e.g., behaviors of teammates or opponents) or individual behaviors (e.g., individual faults). In conclusion, findings add support to the contention that extending the IZOF model to other physical or performance related components would require situational rather than relatively stable qualities. On the other hand, the concept of zones extended to constructs seems beneficial for practical purposes.
Effects of a School-Based Physical Activity Intervention on Adolescents’ Mental Health: A Cluster Randomized Controlled Trial
Kazi Rumana Ahmed, Sharon Horwood, and Asaduzzaman Khan
(endline). Averages of depressive symptoms in the intervention groups decreased about 41% at postintervention, while remained stable in the control group. At postintervention, there was a 24% increase in average life satisfaction in the intervention group, while there was a 3.3% decrease in the control
Influence of Different Inertial Loads on Basic Training Variables During the Flywheel Squat Exercise
Rafael Sabido, Jose Luis Hernández-Davó, and Gabriel T. Pereyra-Gerber
exercises, the aims of this study were: (1) to identify the number of training sessions required to obtain stable and reliable results in the flywheel quarter-squat exercise, (2) to describe the influence of 4 different inertial loads (0.025, 0.050, 0.075, and 0.100 kg·m 2 ) on both concentric and eccentric
Energy Availability in Athletics: Health, Performance, and Physique
Anna K. Melin, Ida A. Heikura, Adam Tenforde, and Margo Mountjoy
weight stable and not excessively low in body mass or body fat levels yet have impaired physiological function secondary to LEA ( Burke et al., 2018c ; Loucks, 2014 ). Table 1 Classification of Energy Availability Levels With Examples of Calculation for a Hypothetical Male and Female Athlete Energy
Evaluating Girls on the Run in Promoting Positive Youth Development: Group Comparisons on Life Skills Transfer and Social Processes
Maureen R. Weiss, Lindsay E. Kipp, Alison Phillips Reichter, and Nicole D. Bolter
would score higher than the non-GOTR girls on life skills transfer, due to the intentional curriculum, and that relatedness and coach autonomy support would be viewed more favorably by the GOTR girls due to their emphasis in coach training. Finally, we expected life skills transfer to remain stable at
