• An analysis of the validity and reliability of handheld ultrasound device for measuring rectus femoris muscle size 

      Nijholt, Willemke; Bakker, Astrid; Bennett, Alicia; Borgen, Morten Højsgård; Ellermann, Anne; Hogg, Peter; Gamboa, Patrícia; Thorskog, Martine; Vorster, Liesl; Aandahl, Ingrid-Jannicke (Peer reviewed; Chapter, 2016)
      Background: Previous studies show that ultrasound is valid and reliable when measuring muscle size. A Philips handheld ultrasound device was released in April 2015. The aim of this study was to investigate the validity ...
    • Ultrasound assessment of muscle thickness and muscle crosssectional area: a reliability study 

      Nijholt, W.; Aandahl, Ingrid Jannicke; Adajar, G.; Borgen, Morten Højsgård; Carreiras, I.; Rab, A.; Totland, Heidi; Warmerdam, N.C.; van der Wal, S.C.M.; Crofts, G. (Chapter; Peer reviewed, 2017)
      Purpose: Previous studies showed that ultrasound imaging is reliable when measuring the cross-sectional area (CSA) of a muscle. However, measurements of muscles could be affected by the level of experience of the observer. ...