Peripheral arterial disease affects the frequency response of ground reaction forces during walking

Denise McGrath, Timothy N. Judkins, Iraklis I. Pipinos, Jason M. Johanning, Sara A. Myers

    Research output: Non-textual formWeb publication/site

    8 Citations (Scopus)

    Abstract

    Background: Walking is problematic for patients with peripheral arterial disease. The purpose of this study was to investigate the frequency domain of the ground reaction forces during walking to further elucidate the ambulatory impairment of these patients. Methods: Nineteen bilateral peripheral arterial disease patients and nineteen controls were included in this study. Subjects were matched for age and gait speed. Participants walked over a force plate sampling at 600 Hz. PAD patients were tested before (pain-free condition) after the onset of claudication symptoms (pain). We calculated median frequency, frequency bandwidth, and frequency containing 99.5% of the signal for the vertical and anterior–posterior ground reaction forces. Findings: Our results showed reduced median frequency in the vertical and anterior-posterior components of the ground reaction forces between the control group and both peripheral arterial disease conditions. We found reduced frequency bandwidth in the anterior-posterior direction between controls and the peripheral arterial disease pain-free condition. There were no differences in median frequency or bandwidth between peripheral arterial disease pain-free and pain conditions, but an increase in the frequency content for 99.5% of the signal was observed in the pain condition. Interpretation: Reduced frequency phenomena during gait in peripheral arterial disease patients compared to velocity-matched controls suggests more sluggish activity within the neuromotor system. Increased frequency phenomena due to pain in these patients suggest a more erratic application of propulsive forces when walking. Frequency domain analysis thus offers new insights into the gait impairments associated with this patient population.
    LanguageEnglish
    PublisherElsevier
    DOIs
    Publication statusPublished - Sep 2012

    Fingerprint

    Peripheral Arterial Disease
    Walking
    Pain
    Gait
    Control Groups
    Population
    Pain-Free

    Cite this

    McGrath, D. (Author), Judkins, T. N. (Author), Pipinos, I. I. (Author), Johanning, J. M. (Author), & Myers, S. A. (Author). (2012). Peripheral arterial disease affects the frequency response of ground reaction forces during walking. Web publication/site, Elsevier. https://doi.org/10.1016/j.clinbiomech.2012.08.004
    McGrath, Denise (Author) ; Judkins, Timothy N. (Author) ; Pipinos, Iraklis I. (Author) ; Johanning, Jason M. (Author) ; Myers, Sara A. (Author). / Peripheral arterial disease affects the frequency response of ground reaction forces during walking. [Web publication/site].
    @misc{b9251702f91b4fdd8f258f92bb16b990,
    title = "Peripheral arterial disease affects the frequency response of ground reaction forces during walking",
    abstract = "Background: Walking is problematic for patients with peripheral arterial disease. The purpose of this study was to investigate the frequency domain of the ground reaction forces during walking to further elucidate the ambulatory impairment of these patients. Methods: Nineteen bilateral peripheral arterial disease patients and nineteen controls were included in this study. Subjects were matched for age and gait speed. Participants walked over a force plate sampling at 600 Hz. PAD patients were tested before (pain-free condition) after the onset of claudication symptoms (pain). We calculated median frequency, frequency bandwidth, and frequency containing 99.5{\%} of the signal for the vertical and anterior–posterior ground reaction forces. Findings: Our results showed reduced median frequency in the vertical and anterior-posterior components of the ground reaction forces between the control group and both peripheral arterial disease conditions. We found reduced frequency bandwidth in the anterior-posterior direction between controls and the peripheral arterial disease pain-free condition. There were no differences in median frequency or bandwidth between peripheral arterial disease pain-free and pain conditions, but an increase in the frequency content for 99.5{\%} of the signal was observed in the pain condition. Interpretation: Reduced frequency phenomena during gait in peripheral arterial disease patients compared to velocity-matched controls suggests more sluggish activity within the neuromotor system. Increased frequency phenomena due to pain in these patients suggest a more erratic application of propulsive forces when walking. Frequency domain analysis thus offers new insights into the gait impairments associated with this patient population.",
    author = "Denise McGrath and Judkins, {Timothy N.} and Pipinos, {Iraklis I.} and Johanning, {Jason M.} and Myers, {Sara A.}",
    year = "2012",
    month = "9",
    doi = "10.1016/j.clinbiomech.2012.08.004",
    language = "English",
    publisher = "Elsevier",
    address = "Netherlands",

    }

    McGrath, D, Judkins, TN, Pipinos, II, Johanning, JM & Myers, SA, Peripheral arterial disease affects the frequency response of ground reaction forces during walking, 2012, Web publication/site, Elsevier. https://doi.org/10.1016/j.clinbiomech.2012.08.004
    Peripheral arterial disease affects the frequency response of ground reaction forces during walking. McGrath, Denise (Author); Judkins, Timothy N. (Author); Pipinos, Iraklis I. (Author); Johanning, Jason M. (Author); Myers, Sara A. (Author). 2012. Elsevier.

    Research output: Non-textual formWeb publication/site

    TY - ADVS

    T1 - Peripheral arterial disease affects the frequency response of ground reaction forces during walking

    AU - McGrath, Denise

    AU - Judkins, Timothy N.

    AU - Pipinos, Iraklis I.

    AU - Johanning, Jason M.

    AU - Myers, Sara A.

    PY - 2012/9

    Y1 - 2012/9

    N2 - Background: Walking is problematic for patients with peripheral arterial disease. The purpose of this study was to investigate the frequency domain of the ground reaction forces during walking to further elucidate the ambulatory impairment of these patients. Methods: Nineteen bilateral peripheral arterial disease patients and nineteen controls were included in this study. Subjects were matched for age and gait speed. Participants walked over a force plate sampling at 600 Hz. PAD patients were tested before (pain-free condition) after the onset of claudication symptoms (pain). We calculated median frequency, frequency bandwidth, and frequency containing 99.5% of the signal for the vertical and anterior–posterior ground reaction forces. Findings: Our results showed reduced median frequency in the vertical and anterior-posterior components of the ground reaction forces between the control group and both peripheral arterial disease conditions. We found reduced frequency bandwidth in the anterior-posterior direction between controls and the peripheral arterial disease pain-free condition. There were no differences in median frequency or bandwidth between peripheral arterial disease pain-free and pain conditions, but an increase in the frequency content for 99.5% of the signal was observed in the pain condition. Interpretation: Reduced frequency phenomena during gait in peripheral arterial disease patients compared to velocity-matched controls suggests more sluggish activity within the neuromotor system. Increased frequency phenomena due to pain in these patients suggest a more erratic application of propulsive forces when walking. Frequency domain analysis thus offers new insights into the gait impairments associated with this patient population.

    AB - Background: Walking is problematic for patients with peripheral arterial disease. The purpose of this study was to investigate the frequency domain of the ground reaction forces during walking to further elucidate the ambulatory impairment of these patients. Methods: Nineteen bilateral peripheral arterial disease patients and nineteen controls were included in this study. Subjects were matched for age and gait speed. Participants walked over a force plate sampling at 600 Hz. PAD patients were tested before (pain-free condition) after the onset of claudication symptoms (pain). We calculated median frequency, frequency bandwidth, and frequency containing 99.5% of the signal for the vertical and anterior–posterior ground reaction forces. Findings: Our results showed reduced median frequency in the vertical and anterior-posterior components of the ground reaction forces between the control group and both peripheral arterial disease conditions. We found reduced frequency bandwidth in the anterior-posterior direction between controls and the peripheral arterial disease pain-free condition. There were no differences in median frequency or bandwidth between peripheral arterial disease pain-free and pain conditions, but an increase in the frequency content for 99.5% of the signal was observed in the pain condition. Interpretation: Reduced frequency phenomena during gait in peripheral arterial disease patients compared to velocity-matched controls suggests more sluggish activity within the neuromotor system. Increased frequency phenomena due to pain in these patients suggest a more erratic application of propulsive forces when walking. Frequency domain analysis thus offers new insights into the gait impairments associated with this patient population.

    U2 - 10.1016/j.clinbiomech.2012.08.004

    DO - 10.1016/j.clinbiomech.2012.08.004

    M3 - Web publication/site

    PB - Elsevier

    ER -

    McGrath D (Author), Judkins TN (Author), Pipinos II (Author), Johanning JM (Author), Myers SA (Author). Peripheral arterial disease affects the frequency response of ground reaction forces during walking Elsevier. 2012. https://doi.org/10.1016/j.clinbiomech.2012.08.004