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Fernando Klitzke Borszcz, Artur Ferreira Tramontin and Vitor Pereira Costa

correlations ( r  = .61–.90) with the anaerobic threshold (AnT). 11 , 12 The AnT demarcates the highest intensity in which the production and elimination of [La − ] are in equilibrium during an incremental test. 1 The validity of various versions of the FTP test, such as 8-, 20-, and 60-minute TT, in relation

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Simon J. MacLeod, Chris Hagan, Mikel Egaña, Jonny Davis and David Drake

. To optimize the training process and control injury risk, practitioners must be able to utilize valid and reliable methods to monitor individual and team-training loads, 2 because without precise quantification of training load, it is not possible to identify the response to training. 3 Training

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Louise M. Burke and Peter Peeling

involvement of these variables is provided in Table  3 , as well as other specific reviews on dietary standardization prior to performance trials ( Jeacocke & Burke, 2010 ), external sources of motivation ( Halperin et al., 2015 ), and the organization of reliable and valid measurements of performance

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Simon A. Feros, Warren B. Young and Brendan J. O’Brien

ecological validity of the assessment, it is beneficial for controlling environmental factors such as wind, rain, temperature, and humidity, especially when the effects of these variables on fast-bowling skill is not understood. In attempt to enhance the ecological validity of the assessment, 5 of the

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Amador García-Ramos, Guy Gregory Haff, Francisco Luis Pestaña-Melero, Alejandro Pérez-Castilla, Francisco Javier Rojas, Carlos Balsalobre-Fernández and Slobodan Jaric

The 1-repetition maximum (1RM) is defined as the maximum load that can be lifted just once in a given exercise. 1 The 1RM is one of the variables most commonly reported to assess the efficacy of various training and rehabilitation interventions as it is considered a valid indicator of maximal

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Paul M. Wright, K. Andrew R. Richards, Jennifer M. Jacobs and Michael A. Hemphill

participants’ cognitive and motivational processes. The dearth of valid measures to assess transfer of responsibility learning in physical education or TPSR programs constitutes a gap in the literature ( Jacobs & Wright, 2017 ). The desire to see learning transfer is certainly not restricted to physical

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José R. Lillo-Bevia and Jesús G. Pallarés

measure cycling PO. Furthermore, relatively little information is available regarding the reliability and validity of these devices. There are several specialized standalone ergometers for laboratory use and its high level of reliability and validity have been confirmed (Lode, 1 Ergoline, 2 Monark, 2

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Joonkoo Yun and Dale A. Ulrich

The purposes of this tutorial are threefold: (a) to clarify the meaning of measurement validity, (b) to provide appropriate validation procedures for use by researchers in adapted physical activity, and (c) to raise the awareness of the limitations of the traditional views on measurement validity. Several validation procedures are described with specific examples from adapted physical activity research based on traditional approaches of providing validity evidence. Conceptual and empirical limitations of the traditional validity framework are discussed. We recommend that several categories of validity evidence should be reported in research studies. We encourage practicing the unified concept of measurement validity (Messick, 1993, 1995) in adapted physical activity research and practice.

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Kerri L. Vasold, Andrew C. Parks, Deanna M.L. Phelan, Matthew B. Pontifex and James M. Pivarnik

displacement plethysmography has shown high reliability and validity for evaluating body composition in many populations, and it has been used frequently as a criterion measure for field techniques in the past two decades, as other methods such as hydrodensitometry and dual-energy X-ray absorptiometry are not

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Justin A. Haegele, Ali S. Brian and Donna Wolf

Our purpose in this study was to document the criterion validity of the Fitbit Zip for measuring steps taken by youth with visual impairments (VI). A secondary purpose was to determine whether walking pace, mounting position, or relative position to the user’s mobility device impacted the criterion validity of the device. Fourteen adolescent-aged individuals (M age = 15.4; 13 male and 1 female) with VI participated in this study. Participants wore four Fitbit Zips at different mounting positions and completed two, 2-min walking trials while the lead investigator hand tallied steps. Measurement validity was analyzed using absolute percent error (APE), intraclass correlation coefficients estimated level of conformity, and paired samples t tests and Cohen’s d effect sizes assessed APE relative to mounting positions. Results supported the use of the Fitbit Zip during regular-paced walking; however, caution must be used during activities exceeding regular walking speeds, as devices consistently underestimated steps.