study aimed to investigate the psychological factors that predict sedentary behavior in Brazilian older adults. Methods Study Design The present study is a methodological investigation, with an observational, descriptive, and cross-sectional design ( Ato, López, & Benavente, 2013 ). This study was
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Psychological Factors Predicting Sedentary Behavior of Older Adults: A Cross-Sectional Study in Brazil
Daniel Vicentini de Oliveira, Matheus Amarante do Nascimento, Bráulio Henrique Magnani Branco, Rogéria Vicentini de Oliveira, José Roberto Andrade do Nascimento Júnior, Gabriel Lucas Morais Freire, and Sônia Maria Marques Gomes Bertolini
Increasing Oxygen Uptake in Cross-Country Skiers by Speed Variation in Work Intervals
Bent R. Rønnestad, Timo Andre Bakken, Vetle Thyli, Joar Hansen, Stian Ellefsen, and Daniel Hammarstrøm
Some of the highest maximal oxygen uptake (VO 2 max) values ever reported are held by elite cross-country (XC) skiers, 1 and performance in XC skiing is, among other factors, related to VO 2 max. 2 In order to improve VO 2 max in highly endurance-trained athletes, it has been suggested that
Increasing Oxygen Uptake in Well-Trained Cross-Country Skiers During Work Intervals With a Fast Start
Bent R. Rønnestad, Tue Rømer, and Joar Hansen
Performance in cross-country (XC) skiing is highly related to maximal oxygen consumption (VO 2 max). 1 , 2 The high VO 2 max values in XC skiers could be related to numerous factors such as genetics, training volume, training periodization, and amount of high-intensity aerobic interval training
Cross-Cultural Adaptation and Validation of the Persian Version of the Functional Arm Scale for Throwers
Masumeh Hessam, Mohammad Hossein Mousavi, Maryam Saadat, and Kellie C. Huxel Bliven
and cultural adaptation of the FAST into the Persian language would be reliable and valid to administer to Iranian throwing athletes. Materials and Method Design This study was implemented in 2 phases, which consisted of translation and cross-cultural adaptation of the FAST into the Persian language
Correlates of Motor Competence in Primary School Students: A Cross-Sectional Study From a Portuguese Municipality
Francisco Carvalho, Marcos Onofre, João Mota, Miguel Peralta, Adilson Marques, Ana Quitério, António Rodrigues, Pedro Alves, Wesley O’Brien, and João Martins
-, behavioral-, and cultural- and social-level correlates of MC in second- and fourth-grade Portuguese children. Methods Study Context This cross-sectional study was part of the “Sintra Grows Healthy” (SGH) project, a school-based intervention project aimed at promoting physically active lifestyles through
Cross-Validation and Comparison of Energy Expenditure Prediction Models Using Count-Based and Raw Accelerometer Data in Youth
Alexander H.K. Montoye, Kimberly A. Clevenger, Kelly A. Mackintosh, Melitta A. McNarry, and Karin A. Pfeiffer
al., 2016 ; Staudenmayer et al., 2015 ) and one study in youth ( Hibbing, Ellingson, et al., 2018 ) have demonstrated that the accuracy of these models decreases when cross-validating in a new or independent sample, indicating a tendency for machine learning models to be over-fit to the data. Further
Effects of Three Types of Thought Content Instructions on Skiing Performance
Brent S. Rushall, Marty Hall, Laurent Roux, Jack Sasseville, and Amy C. Rushall
The purpose of this investigation was to assess the effects of instructions—to think particular types of thoughts—on the cross-country skiing performances of elite skiers. Eighteen members of the Canadian Cross-Country Ski Team served as subjects. Instructions were given to plan and think particular types of thoughts while skiing, namely task-relevant statements, mood words, and positive self-statements. Performances on a standard test track under thought control conditions were compared to similar efforts under “normal” (control) thinking. Thirteen subjects also recorded heart rates at the completion of each trial. A balanced order design of two replications of each condition was employed in each of the three experiments. Sixteen subjects improved in all conditions whereas two subjects improved in only one condition. Heart rates were marginally higher and statistically significant in each experimental condition compared to the control condition. Performance improvements of more than 3% were registered under each thought content condition, even though all subjects reported that they were not aware of any effort differential. That performance improvements of this magnitude could be achieved in athletes of such a caliber indicates the value of attempts to use the particular forms of thoughts employed in this study for improving cross-country skiing performance.
Gender Differences in Caregivers’ Attitudes to Risky Child Play in Britain: A Cross-Sectional Study
Andrea D. Smith, Helen F. Dodd, Luiza Ricardo, and Esther van Sluijs
collapsed into a binary socioeconomic status variable grouping participants into “middle class (high/medium socioeconomic status)” or “working class (low socioeconomic status).” 31 Statistical Analyses Multiple linear regression models examined cross-sectional associations between parent gender and child
Association Between Children’s and Parents’ Physical Activity During the COVID-19 Pandemic: A Cross-Lagged Analysis
Monika Szpunar, Matthew Bourke, Leigh M. Vanderloo, Brianne A. Bruijns, Stephanie Truelove, Shauna M. Burke, Jason Gilliland, Jennifer D. Irwin, and Patricia Tucker
participation. On average, how many minutes per week did YOU spend engaged in moderate-to-vigorous, heart-pumping physical activity prior to COVID-19 (eg, brisk walking, jogging/running, bike riding, playing sports, strength training, cross-country skiing, etc.)?” The second question asked parents to indicate
The Evolvement of Session Design From Junior Age to Senior Peak Performance in World-Class Cross-Country Skiers
Jacob Walther, Thomas Haugen, Guro Strøm Solli, Espen Tønnessen, and Øyvind Sandbakk
Reaching a world-class level in endurance sport requires many years of systematic training. A substantial body of research has been devoted to describing fundamental training variables such as training volume, forms, modes, and intensity distribution (TID) in senior world-class cross-country (XC
