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  1. Article ; Online: Accelerometer and GPS Data to Analyze Built Environments and Physical Activity.

    Tamura, Kosuke / Wilson, Jeffrey S / Goldfeld, Keith / Puett, Robin C / Klenosky, David B / Harper, William A / Troped, Philip J

    Research quarterly for exercise and sport

    2019  Volume 90, Issue 3, Page(s) 395–402

    Abstract: ... ...

    Abstract Purpose
    MeSH term(s) Accelerometry/instrumentation ; Adult ; Aged ; Environment Design ; Exercise ; Female ; Fitness Trackers ; Geographic Information Systems ; Humans ; Male ; Massachusetts ; Middle Aged ; Population Density ; Residence Characteristics ; Walking ; Young Adult
    Language English
    Publishing date 2019-06-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 225654-x
    ISSN 2168-3824 ; 0270-1367
    ISSN (online) 2168-3824
    ISSN 0270-1367
    DOI 10.1080/02701367.2019.1609649
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Accelerometer and GPS Analysis of Trail Use and Associations With Physical Activity.

    Tamura, Kosuke / Wilson, Jeffrey S / Puett, Robin C / Klenosky, David B / Harper, William A / Troped, Philip J

    Journal of physical activity & health

    2018  Volume 15, Issue 7, Page(s) 523–530

    Abstract: Background: Concurrent use of accelerometers and global positioning system (GPS) data can be used to quantify physical activity (PA) occurring on trails. This study examined associations of trail use with PA and sedentary behavior (SB) and quantified on ...

    Abstract Background: Concurrent use of accelerometers and global positioning system (GPS) data can be used to quantify physical activity (PA) occurring on trails. This study examined associations of trail use with PA and sedentary behavior (SB) and quantified on trail PA using a combination of accelerometer and GPS data.
    Methods: Adults (N = 142) wore accelerometer and GPS units for 1-4 days. Trail use was defined as a minimum of 2 consecutive minutes occurring on a trail, based on GPS data. We examined associations between trail use and PA and SB. On trail minutes of light-intensity, moderate-intensity, and vigorous-intensity PA, and SB were quantified in 2 ways, using accelerometer counts only and with a combination of GPS speed and accelerometer data.
    Results: Trail use was positively associated with total PA, moderate-intensity PA, and light-intensity PA (P < .05). On trail vigorous-intensity PA minutes were 346% higher when classified with the combination versus accelerometer only. Light-intensity PA, moderate-intensity PA, and SB minutes were 15%, 91%, and 85% lower with the combination, respectively.
    Conclusions: Adult trail users accumulated more PA on trail use days than on nontrail use days, indicating the importance of these facilities for supporting regular PA. The combination of GPS and accelerometer data for quantifying on trail activity may be more accurate than accelerometer data alone and is useful for classifying intensity of activities such as bicycling.
    MeSH term(s) Accelerometry ; Adult ; Bicycling/physiology ; Exercise/physiology ; Female ; Geographic Information Systems ; Humans ; Male ; Sedentary Behavior ; Walking/physiology
    Language English
    Publishing date 2018-03-26
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1543-5474
    ISSN (online) 1543-5474
    DOI 10.1123/jpah.2016-0667
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book: The philosophic process in physical education

    Harper, William A.

    1977  

    Author's details William A. Harper ...
    Keywords Sportphilosophie ; Sportunterricht
    Size XIV, 336 Seiten: Illustrationen
    Edition 3. ed.
    Publisher Lea & Febiger; Philadelphia
    Document type Book
    HBZ-ID HT008077791
    ISBN 0-8121-0565-6 ; 978-0-8121-0565-0
    Database Central Library of Sport Science of the German Sport University Cologne

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  4. Book ; Online: Kant on Causality, Freedom, and Objectivity

    Harper, William A / Meerbote, Ralf

    1980  

    Language English
    Size Online-Ressource (199 p.)
    Publisher University of Minnesota Press
    Publishing place Minneapolis
    Document type Book ; Online
    Note Description based upon print version of record
    ISBN 9780816612666 ; 0816612668
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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