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Changes in the Cross-Sectional Area of the Abductor Hallucis During the Toe-Spread-Out Exercise at Different Ankle Positions

  • Journal of the Korean Society of Physical Medicine
  • Abbr : J Korean Soc Phys Med
  • 2020, 15(2), pp.121-128
  • DOI : 10.13066/kspm.2020.15.2.121
  • Publisher : The Korean Society of Physical Medicine
  • Research Area : Medicine and Pharmacy > Physical Therapy > Other physical therapy
  • Received : January 30, 2020
  • Accepted : March 27, 2020
  • Published : May 31, 2020

Seong-Tae Kang 1 Sun-Young Kang 1 Kim Kisong 2 JEON IN CHEOL 2 Sung-dae Choung 3

1호서대학교 생명보건대학 물리치료학과
2호서대학교
3백석대학교 보건학부 물리치료학과

Accredited

ABSTRACT

PURPOSE: This study examined the changes in the cross-sectional area (CSA) of the abductor hallucis muscle during various ankle positions while performing toe�spread-out (TSO) exercise. METHODS: Thirty subjects with an average age of 22.1 years were recruited for this study. All subjects were firstly measured for the angle of their first metatarsophalangeal joint using a goniometer. Those with angles greater than 15° were allocated to the HV group. The remaining subjects were placed in the normal group. The CSA of the abductor hallucis was measured by ultrasound in the resting position with no movement and three ankle positions: neutral (0°), plantarflexion (30°), and dorsiflexion (30°). All data were analyzed using a two-way mixed analysis of variance between the groups (normal and HV group) and within the groups (resting, neutral, plantarflexion, and dorsiflexion) to determine the group x position interaction effects. RESULTS: During TSO exercise in the normal group, the CSA of the abductor hallucis was significantly greater in both the plantarflexion and neutral positions compared to the resting position (padj < .01), and plantarflexion was significantly greater than the dorsiflexion position (padj < .01). During the TSO exercise in the HV group, the CSA of the abductor hallucis for plantarflexion was significantly greater than it was for the resting, neutral, and dorsiflexion positions (padj < .01). CONCLUSION: Based on the above results, the TSO exercise in plantarflexion is an effective rehabilitation exercise for subjects with HV.

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