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Travis Anderson, Sandra J. Shultz, Nancy I. Williams, Ellen Casey, Zachary Kincaid, Jay L. Lieberman and Laurie Wideman

, the timing and magnitude of relaxin exposure may vary considerably among females and be difficult to detect with only one or two serum samples collected throughout a menstrual cycle. This variability may also help inform previously reported menstrual cycle phase differences in ACL injury risk (see

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Lindsay B. Baker, Kelly A. Barnes, Bridget C. Sopeña, Ryan P. Nuccio, Adam J. Reimel and Corey T. Ungaro

fluid intake recommendations ( Maughan & Shirreffs, 2010 ). Due to the time constraints and/or practical limitations of field conditions, it may not be possible for sweat samples to be analyzed immediately after collection. Therefore, oftentimes sweat samples must be temporarily stored on site or

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Chunxiao Li, Lijuan Wang, Martin E. Block, Raymond K.W. Sum and Yandan Wu

from exploratory factor analysis ( Brown, 2015 ). The factor structure of PESEISD-A was examined in only one independent sample, and there is a need to enhance its generalizability using other populations ( Messick, 1995 ). It is still unknown whether the one-factor model of the scale would hold in

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John Cairney, Heather Clark, Dean Dudley and Dean Kriellaars

 = response speed; h = Harter item; csa = CSAPPA item. Methods Sample We employed two samples from the Physical Health and Activity Study Team project ( Cairney, Hay, Veldhuizen, Missiuna, & Faught, 2010 ), a grade 5 sample and a grade 7 sample (see Table  1 for a description of both). This allowed us to

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Aston K. McCullough and Carol Ewing Garber

children in need of early PA intervention may not be identified as habitually inactive using wearable sensors due to insufficient device wear time. To our knowledge, brief accelerometer data samples (∼15 minutes) have not been explored as a means by which to identify children at risk of insufficient daily

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Tori M. Stone, Jonathan E. Wingo, Brett S. Nickerson and Michael R. Esco

aforementioned studies comparing BMC from DXA and BIA used small samples and correlational analyses, so more definitive conclusions about the efficacy of using BIA to estimate BMC, and the extent of bias between BMC values from DXA and BIA, remain unknown. Accordingly, the purpose of this study was to validate

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Bronwyn K. Clark, Nyssa T. Hadgraft, Takemi Sugiyama and Elisabeth A. Winkler

time, and some office-specific activities (such as sitting); however, further evidence is necessary to inform the collection of such measures in the field. Firstly, validity has been established only when using the shortest sampling interval (i.e., the 10-s proximity setting; Clark et al., 2018 ). Use

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Michael Buchecker, Stefan Wegenkittl, Thomas Stöggl and Erich Müller

). However, at least for devices producing a moderate level of difficulty (e.g., foam mats, slowly moving platforms, etc.), most of the available literature reports a corresponding loss of complexity in center of pressure (COP) and muscle dynamics. For example, by means of sample entropy (SEn) and largest

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Ioanna Athanasiadou, Sven Christian Voss, Wesal El Saftawy, Hind Al-Jaber, Najib Dbes, Sameera Al-Yazedi, Waseem Samsam, Vidya Mohamed-Ali, Mohammed Alsayrafi, Georgia Valsami and Costas Georgakopoulos

than 1.020) when using the Siemens IMMULITE assay shall be reported as a presumptive adverse analytical finding, that is, a sample test result for which there is a suspicious result without being confirmed. Complementary analysis shall be performed to detect the presence of gonadotropin

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Ben T. Stephenson, Eleanor Hynes, Christof A. Leicht, Keith Tolfrey and Victoria L. Goosey-Tolfrey

-leg impairment Abbreviations: SCI, spinal cord injury; T6i, incomplete lesion at the sixth thoracic vertebra; V ˙ O 2 peak , peak rate of oxygen uptake. Note: Values are presented as mean (SD), where appropriate. Study Design Saliva samples were collected over 23 consecutive weeks (February–July) and a further