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Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study

Author

Listed:
  • Jaehyun Jung

    (College of Medicine, Korea University, Seoul 02841, Korea
    Division of Rheumatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Korea
    Co-first Author. Authors contributed equally.)

  • Kewwan Kim

    (Department of Physical Education, College of Arts and Physical Education, Incheon National University, Incheon 22012, Korea
    Co-first Author. Authors contributed equally.)

  • Sungjae Choi

    (College of Medicine, Korea University, Seoul 02841, Korea
    Division of Rheumatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Korea)

  • Gwangyu Song

    (College of Medicine, Korea University, Seoul 02841, Korea
    Department of Internal Medicine, Division of Rheumatology, Korea University Guro Hospital, Seoul 08308, Korea)

  • Young Ryu

    (Department of Physical Education, Graduate School of Incheon National University, Incheon 22012, Korea)

  • Cholhee Kim

    (Department of Physical Education, Graduate School of Incheon National University, Incheon 22012, Korea
    Authors contributed equally.)

  • Chaegil Lim

    (Department of Physical Therapy, Gachon University, Incheon 21936, Korea
    Authors contributed equally.)

Abstract

Postural control during walking is maintained by the combination of various factors. Among these factors, adjustment of trunk movement is essential for maintaining postural control, and the response of muscles to unpredictable stimuli affects postural control. Loss of balance while walking increases the risk of accidents, the frequency of which depends on age and sex. In this study, we investigated whether there was a difference in the movement time of trunk muscles to sudden stimulation while walking according to age and sex. Fourteen healthy individuals aged 20–30 years (6 men, 8 women) and 12 individuals aged 50–70 years (4 men, 8 women) were included in the study. Movement time of bilateral erector spinae and rectus abdominis muscles in response to visual stimulation during walking was examined using surface electromyography. Movement time was calculated as the total muscle activation time excluding the reaction time. This study revealed no significant differences in movement time of the erector spinae muscles according to sex or age. The role of the rectus abdominis muscles in maintaining posture during walking was insignificant. In conclusion, the movement time of trunk muscles in response to sudden visual stimulation during walking did not differ by age or sex, and the difference in accident frequency may be associated with deterioration of other factors required to maintain posture.

Suggested Citation

  • Jaehyun Jung & Kewwan Kim & Sungjae Choi & Gwangyu Song & Young Ryu & Cholhee Kim & Chaegil Lim, 2021. "Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study," IJERPH, MDPI, vol. 18(9), pages 1-8, May.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:9:p:5015-:d:551157
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    References listed on IDEAS

    as
    1. Jooyoung Kim & Wi-Young So, 2018. "High Body Mass Index Is Associated with the Extent of Muscle Damage after Eccentric Exercise," IJERPH, MDPI, vol. 15(7), pages 1-7, July.
    2. Monika Błaszczyszyn & Agnieszka Szczęsna & Katarzyna Piechota, 2019. "sEMG Activation of the Flexor Muscles in the Foot during Balance Tasks by Young and Older Women: A Pilot Study," IJERPH, MDPI, vol. 16(22), pages 1-10, November.
    Full references (including those not matched with items on IDEAS)

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