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Effects of Knee Savers on the quadriceps muscle activation across deep knee bending postures.

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  • معلومة اضافية
    • Author-Supplied Keywords:
      Electromyography
      Ergonomics
      Knee disorders
      Kneeling
      Squatting
    • NAICS/Industry Codes:
      417930 Professional machinery, equipment and supplies merchant wholesalers
      339110 Medical equipment and supplies manufacturing
      339113 Surgical Appliance and Supplies Manufacturing
    • Abstract:
      Workers who kneel or squat frequently are at a high risk of developing knee pathologies. Knee Savers® are wedge-shaped pads, worn on the lower calf by baseball catchers that aim to reduce this risk. This study examined how Knee Savers® change the bilateral quadriceps muscle activity during dorsiflexed kneeling, and heels-up and flat-foot squatting. For twenty participants, integrated and peak electromyography (EMG) during descent and ascent phases, mean EMG during a 10-s static phase, and participants' subjective perception of muscle fatigue were compared between equipment conditions (with (W) and without (WO) Knee Savers®). Knee Savers® did not significantly reduce integrated or peak EMG during transitions into and out of the postures; however, they significantly reduced (p < .03) mean EMG in five of six muscles during the static phase. These findings indicate potential for Knee Savers® to reduce cumulative muscular effort and fatigue in applications where prolonged static kneeling or squatting are required. [ABSTRACT FROM AUTHOR]
    • Abstract:
      Copyright of Applied Ergonomics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
    • Author Affiliations:
      1Department of Kinesiology, University of Waterloo, 200 University Avenue West, Waterloo, ON, Canada
    • ISSN:
      0003-6870
    • Accession Number:
      10.1016/j.apergo.2019.05.016
    • Accession Number:
      137324378
  • Citations
    • ABNT:
      PEJHAN, S. et al. Effects of Knee Savers on the quadriceps muscle activation across deep knee bending postures. Applied Ergonomics, [s. l.], v. 80, p. 193–199, 2019. DOI 10.1016/j.apergo.2019.05.016. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=137324378&custid=s8280428. Acesso em: 29 maio. 2020.
    • AMA:
      Pejhan S, Denroche SK, Frew GJ, Acker SM. Effects of Knee Savers on the quadriceps muscle activation across deep knee bending postures. Applied Ergonomics. 2019;80:193-199. doi:10.1016/j.apergo.2019.05.016.
    • APA:
      Pejhan, S., Denroche, S. K., Frew, G. J., & Acker, S. M. (2019). Effects of Knee Savers on the quadriceps muscle activation across deep knee bending postures. Applied Ergonomics, 80, 193–199. https://doi.org/10.1016/j.apergo.2019.05.016
    • Chicago/Turabian: Author-Date:
      Pejhan, Shabnam, Sean K. Denroche, Geena J. Frew, and Stacey M. Acker. 2019. “Effects of Knee Savers on the Quadriceps Muscle Activation across Deep Knee Bending Postures.” Applied Ergonomics 80 (October): 193–99. doi:10.1016/j.apergo.2019.05.016.
    • Harvard:
      Pejhan, S. et al. (2019) ‘Effects of Knee Savers on the quadriceps muscle activation across deep knee bending postures’, Applied Ergonomics, 80, pp. 193–199. doi: 10.1016/j.apergo.2019.05.016.
    • Harvard: Australian:
      Pejhan, S, Denroche, SK, Frew, GJ & Acker, SM 2019, ‘Effects of Knee Savers on the quadriceps muscle activation across deep knee bending postures’, Applied Ergonomics, vol. 80, pp. 193–199, viewed 29 May 2020, .
    • MLA:
      Pejhan, Shabnam, et al. “Effects of Knee Savers on the Quadriceps Muscle Activation across Deep Knee Bending Postures.” Applied Ergonomics, vol. 80, Oct. 2019, pp. 193–199. EBSCOhost, doi:10.1016/j.apergo.2019.05.016.
    • Chicago/Turabian: Humanities:
      Pejhan, Shabnam, Sean K. Denroche, Geena J. Frew, and Stacey M. Acker. “Effects of Knee Savers on the Quadriceps Muscle Activation across Deep Knee Bending Postures.” Applied Ergonomics 80 (October 2019): 193–99. doi:10.1016/j.apergo.2019.05.016.
    • Vancouver/ICMJE:
      Pejhan S, Denroche SK, Frew GJ, Acker SM. Effects of Knee Savers on the quadriceps muscle activation across deep knee bending postures. Applied Ergonomics [Internet]. 2019 Oct [cited 2020 May 29];80:193–9. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=137324378&custid=s8280428