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Translation, Cross-Cultural Adaptation, and Validation of the Persian Version of the Lifetime Total Physical Activity Questionnaire

Maryam Selk-Ghaffari, Amin Nakhostin-Ansari, Iman Menbari Oskouie, Yasamin Maleki Gilvaei, Behnaz Mahdaviani, Maedeh Gholami-Mehrabadi, and Ramin Kordi

Iranians. Hence, the purpose of this study was to translate and cross-culturally adapt the LTPAQ for use in Persian and to evaluate its validity and reliability. Methods Design Between May 2021 and September 2021, the study enrolled healthy 18–65 years old adults. Participants were provided with complete

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Is the 5-Minute Time-Trial Cycling Test a Valid Predictor of Maximal Oxygen Uptake? An External Cross-Validation Study

Fernando Klitzke Borszcz, Artur Ferreira Tramontin, Ricardo Dantas de Lucas, and Vitor Pereira Costa

 = .61 and .90, respectively). However, it is crucial to consider out-of-sample predictive accuracy when using linear regression models and it is recommended as standard practice. 9 Therefore, before the generalized use of a predictive equation in practice, cross-validation using another sample outside

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A Cross-Cultural Examination of the Role of (De-)Motivating Teaching Styles in Predicting Students’ Basic Psychological Needs in Physical Education: A Circumplex Approach

Sergio Diloy-Peña, Luis García-González, Rafa Burgueño, Henri Tilga, Andre Koka, and Ángel Abós

countries due to the cultural characteristics and their own variability ( Walton-Fisette et al., 2018 ). Therefore, there is a need to investigate whether the cross-cultural differences influence how students’ perceptions of (de-)motivating approaches from the teacher might yield specific motivational

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Development and Cross-Validation of a Prediction Equation for Estimating Percentage Body Fat From Body Mass Index in Young People With Intellectual Disability

Fabio Bertapelli, Stamatis Agiovlasitis, Robert W. Motl, Roberto A. Soares, Marcos M. de Barros-Filho, Wilson D. do Amaral-Junior, and Gil Guerra-Junior

 al., 1996 ). Previous research has developed and cross-validated equations from BMI and simple demographic variables such as sex and age for predicting %BF in individuals without ID ( Deurenberg, Weststrate, & Seidell, 1991 ; Gallagher et al., 2000 ; Jackson et al., 2002 ). These equations, however, may

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Acute Effect of Brace Use on Upper-Extremity Functionality in Adolescent Individuals With Idiopathic Scoliosis: A Cross-Sectional Study

Kamil Yilmaz, Fatih Celik, and Bayram Sonmez Unuvar

limitation of scapula and trunk mobility. Alternatively, we hypothesized that these braces may also have a positive acute effect on upper-extremity functionality by reducing axial asymmetry, increasing trunk stabilization, and improving motor behavior. Methods Study Design This cross-sectional study was

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The Effects of a Short Specific Versus a Long Traditional Warm-Up on Time-Trial Performance in Cross-Country Skiing Sprint

Guro Strøm Solli, Pål Haugnes, Jan Kocbach, Roland van den Tillaar, Per Øyvind Torvik, and Øyvind Sandbakk

the traditional warm-up used by cross-country (XC) skiers. 12 However, in sprint XC skiing (ie, ∼3-min time trial followed by 3 subsequent knockout heats), the competition speed and intensity are higher than the intensity reached during traditionally warm-up. Previous studies have shown high blood

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Does a Novice Technician Produce Results Similar to That of an Experienced DXA Technician When Assessing Body Composition and Bone Mineral Density?

Carl Persson, Flinn Shiel, Mike Climstein, and James Furness

an ethical consideration. Ideally, future research should include multiple technicians scanning large participant cohorts in a cross-sectional design to further validate the findings of this study and minimize the impact of a single technician. To be able to further generalize the findings, the

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Development of a “Cooling” Menthol Energy Gel for Endurance Athletes: Effect of Menthol Concentration on Acceptability and Preferences

Christopher J. Stevens, Megan L.R. Ross, and Roxanne M. Vogel

experiencing the altered thermal sensation and its effects on pacing through self-regulation of effort; (c) the development of products from food-grade sources rather than chemical companies, which are supplied with hazard statements, and to prevent cross-contamination with other harmful chemicals ( Barwood et

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Poststretch Isometric Contractions of the Hamstrings: Just a Brief Stretch to Achieve Supramaximal Isometric Force

Neil Chapman, John William Whitting, Suzanne Broadbent, Zachary Crowley-McHattan, and Rudi Meir

from diagnosed lower limb musculoskeletal injury and neurologic conditions in the preceding 12 weeks. The study and its associated methodology was approved by the Southern Cross University Human Research Ethics Committee (ECN: 2019/090). Experimental Setup Participants were seated on a Biodex System 3

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Development and Reliability of an Athlete Introductory Movement Screen for Use in Emerging Junior Athletes

Simon A. Rogers, Peter Hassmén, Alexandra H. Roberts, Alison Alcock, Wendy L. Gilleard, and John S. Warmenhoven

participants had taken part in 2 or more sports in the preceding 12-month period (number of sports = 2.8 [1.7]) and took part in 12.4 [6.4] hours of training and competition in organized sports per week. Before testing, ethical approval was granted by the Southern Cross University human ethics committee (ECN