Relationship between the cyclic injecting jet-water and the locomotor-like stepping movement

Tomohisa Kato, Minoru Sato, Shinichiro Yamamoto, Takashi Komeda, Kimitaka Nakazawa

Research output: Contribution to journalArticlepeer-review


A lot of previous studies have developed various exercise methods and devices in order to provide exercise effective for maintaining good health. In particular, it is recently well-known that underwater gait-training is a useful fitness movement especially for elderly person. In addition, our previous study, it has been reported to develop a device to induce locomotor-like stepping movements by injecting jet-water to foot sole of a person sitting in a bath. And we demonstrated that the new device can induce locomotor-like stepping movement by effectively flexing hip, knee and ankle joints. In this study, we focused on optimization of this device. Here, we investigated relations of the cyclic (slow, fast) injecting jet-water and the locomotor-like stepping movement. The result shows that coefficient of variation (C.V.) of knee and hip joint was significantly larger in the slow cyclic injecting jet-water compared with that of fast cyclic. We suggested that different cyclic injecting jet-water modulate locomotor-like stepping movement.

Original languageEnglish
Pages (from-to)476-481
Number of pages6
JournalTransactions of Japanese Society for Medical and Biological Engineering
Issue number5
Publication statusPublished - 2010 Dec 1


  • Aquakinetics
  • Biomechanics
  • Fluid mechanics

ASJC Scopus subject areas

  • Biomedical Engineering


Dive into the research topics of 'Relationship between the cyclic injecting jet-water and the locomotor-like stepping movement'. Together they form a unique fingerprint.

Cite this