Low handgrip strength is closely associated with chronic low back pain among women aged 50 years or older: A cross-sectional study using a national health survey

• Sang-Min Park ,

  Contributed equally to this work with: Sang-Min Park, Gang-Un Kim

  Roles Conceptualization, Data curation, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Republic of Korea

  http://orcid.org/0000-0001-6171-3256

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• Gang-Un Kim ,

  Contributed equally to this work with: Sang-Min Park, Gang-Un Kim

  Roles Conceptualization, Data curation, Formal analysis

  Affiliation Department of Orthopedic Surgery, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Republic of Korea

  ⨯
• Ho-Joong Kim,

  Roles Conceptualization, Formal analysis, Writing – original draft

  Affiliation Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Republic of Korea

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• Hyoungmin Kim,

  Roles Supervision, Writing – review & editing

  Affiliation Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Hospital, Seoul, Korea

  http://orcid.org/0000-0002-4500-9653

  ⨯
• Bong-Soon Chang,

  Roles Conceptualization, Supervision, Writing – review & editing

  Affiliation Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Hospital, Seoul, Korea

  ⨯
• Choon-Ki Lee,

  Roles Conceptualization, Supervision, Writing – review & editing

  Affiliation Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Hospital, Seoul, Korea

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• Jin S. Yeom

  Roles Formal analysis, Supervision, Writing – review & editing

  * E-mail: highcervical@gmail.com

  Affiliation Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, Republic of Korea

  http://orcid.org/0000-0002-8241-5335

  ⨯