Journal of Medical and Biological Engineering

, Volume 39, Issue 4, pp 596–604 | Cite as

Gender-Specific Kinematics for Rotational Coordination Between Hips and Lumbar Spine During Downswing

  • Ahnryul Choi
  • Ki Young Lee
  • Sangsik Lee
  • Hyunsoon Yu
  • Joung Hwan MunEmail author
Original Article


The purpose of this study was to compare and evaluate the inter-joint coordination between the hips and lumbar spine in both male and female skilled golfers during the downswing phase. Six infrared MCAM2 cameras were used for capturing each participant’s swing motion. In order to evaluate the inter-joint coordination, kinematic data and continuous relative phase (CRP) were obtained during downswing phase. The lead hip-lumbar spine CRP in male golfers showed a typical parabola pattern with a minimum value at around 60% of the downswing phase. On the other hand, the CRP between the lead hip and lumbar spine of female golfers barely changed from the initial to middle downswing stages, and increased at the later stage. Male golfers typically used their lead hip more than their lumbar spine during the early downswing, while the rotational contribution of the lumbar spine and lead hip in female golfers were comparable until the middle of the downswing phase. These findings result from the opposite rotation of the lumbar spine for even the early downswing phase due to the muscular and articular flexibility of female golfers. This study has the potential to help develop gender-specific coaching materials for the improvement of swing skills.


Kinematics Inter-joint coordination Continuous relative phase Lumbar spine Hip 



This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. NRF-2016R1A2B3009013).


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Copyright information

© Taiwanese Society of Biomedical Engineering 2018

Authors and Affiliations

  • Ahnryul Choi
    • 1
    • 2
  • Ki Young Lee
    • 1
  • Sangsik Lee
    • 1
  • Hyunsoon Yu
    • 3
  • Joung Hwan Mun
    • 2
    Email author
  1. 1.Department of Biomedical Engineering, College of Medical ConvergenceCatholic Kwandong UniversityGangneungRepublic of Korea
  2. 2.Department of Bio-Mechatronic Engineering, College of Biotechnology & BioengineeringSungkyunkwan UniversitySuwonRepublic of Korea
  3. 3.Department of Sports Science, College of Natural ScienceHankyong National UniversityAnseongRepublic of Korea

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