Effects of spring-loaded crutches on gastrocnemius activity and upward displacement of the body during gait

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  • Kang Min-Hyeok
    Department of Physical Therapy, Graduate School, Inje University, Republic of Korea
  • Oh Jae-Seop
    Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Republic of Korea
  • Yang Sung-Ho
    College of Design, Inje University: 197 Inje-ro, Gimhae-si, Gyungsangnam-do 50834, Republic of Korea

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<p>[Purpose] This study investigated the effects of spring-loaded crutches on gastrocnemius muscle activity and upper body displacement in the sagittal plane during gait. [Subjects and Methods] The study involved 12 healthy males. All subjects performed crutch gait by using spring-loaded crutches and axillary crutches. During this gait, the gastrocnemius muscle activity was measured using a wireless electromyography system, and upward displacement of the body was measured using a three-dimensional motion analysis system. [Results] The gastrocnemius activity was significantly lower but upward displacement of the body was significantly greater with the spring-loaded crutches than with axillary crutches. [Conclusion] Spring-loaded crutches allow efficient crutch gait and involve less effort from the gastrocnemius muscle.</p>

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