Journal of Korean Foot and Ankle Society (대한족부족관절학회지)

Korean Foot & Ankle Society (대한족부족관절학회)
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Novel Balance Tests for Assessing Functional Ankle Instability: Relationships with BMI and Gender

기능적 족관절 불안정성을 평가할 수 있는 새로운 균형 평가법: 체질량 지수와 성별과의 연관성

  • Patankar, Harshad P. (Department of Orthopaedic Surgery, Guro Hospital, Korea University College of Medicine) ;
  • Yeo, Eui-Dong (Department of Orthopaedic Surgery, Guro Hospital, Korea University College of Medicine) ;
  • Kim, Seung-Joo (Department of Orthopaedic Surgery, Guro Hospital, Korea University College of Medicine) ;
  • Lim, Hong-Chul (Department of Orthopaedic Surgery, Guro Hospital, Korea University College of Medicine) ;
  • Hwang, Myong-Hoi (Department of Orthopaedic Surgery, Guro Hospital, Korea University College of Medicine) ;
  • Park, Se-Hyun (Department of Sports Medicine, Guro Hospital, Korea University College of Medicine) ;
  • Kim, Hak-Jun (Department of Orthopaedic Surgery, Guro Hospital, Korea University College of Medicine)
  • ;
  • 여의동 (고려대학교 의과대학 정형외과학교실) ;
  • 김승주 (고려대학교 의과대학 정형외과학교실) ;
  • 임홍철 (고려대학교 의과대학 정형외과학교실) ;
  • 황명회 (고려대학교 의과대학 정형외과학교실) ;
  • 박세현 (고려대학교 구로병원 스포츠의학실) ;
  • 김학준 (고려대학교 의과대학 정형외과학교실)
  • Received : 2012.04.14
  • Accepted : 2012.05.16
  • Published : 2012.06.15
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Abstract

Purpose: To design novel balance tests to assess FAI and evaluate whether these tests are affected by BMI or gender, with the goal of developing reliable FAI assessment tests that are not influenced by these factors. Materials and Methods: Participants included 20 young, healthy volunteers, 12 males and 8 females, with a mean age of $24{\pm}4$ years and a mean BMI of $23{\pm}2.28$. None of the subjects had known ankle instability. The following tests were assessed in each participant: single leg balance (SLB), percentage of leg press (PLP), single leg cycling (SLC), one leg squat (OLS), multiple direction reach-front/back/side (MDR-F/B/S), single leg hop (SLH), two leg jump (TLJ) and side step (SS). Data were analyzed using the SPSS 12.0 software program with ANOVA and t-test used. Results: When grouped by BMI, we found that despite differences in BMI, the performances of all subjects were equivalent except for the one-leg-squat test, for which the mean ratios for underweight ($1.69{\pm}0$), normal weight ($1.05{\pm}0.19$), and overweight ($0.93{\pm}0.30$) individuals were significantly different (p=0.02); ratios for SLB (p=0.273), SLC (p=0.903), PLP (p=0.664), MDR-F/B/S (p=0.498, 0.908, and 0.503, respectively), SLH (p=0.332) were not significantly different. When calculated according to gender, we found that the OLS (p=0.013) and MDRS (p=0.034) were significantly different, while parameters for all the remaining tests were not affected. Conclusion: We found that the SLB, PLP, SLC, MDR-F/B, and SLH ratios were unaffected by BMI or sex and, therefore, are reliable parameters for assessing ankle instability.

Keywords

References

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