Influence of muscle cooling on the passive mechanical properties of the human gastrocnemius muscle

Tetsuro Muraoka, Kohei Omuro, Taku Wakahara, Tetsuo Fukunaga, Kazuyuki Kanosue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The purpose of the present study was to examine the influence of muscle cooling on the passive mechanical properties of the human gastrocnemius muscle (GAS) in vivo. In a thermoneutral (a room temperature of 18-23°C) and a local cooling (placing the right lower leg into cold water with a temperature of 5-8°C for 60 min) conditions, the change in passive plantarflexion force (F), which is produced only by the GAS length change, was taken in five subjects during passive knee extension from 90° to 0° with a constant ankle joint angle of 10° dorsiflexion. To evaluate an elastic component of the passive plantarflexion force of GAS, the subject held full knee extended position for 1 min (i.e. relaxation period). Skin and muscle temperature of GAS were also measured using a core temperature thermistor. The peak value of F (Fve) that was measured at the end of the knee extension phase, the decrease of F (ΔF) during the relaxation period, and the F at the end of the relaxation period (Fe) were measured in the two conditions. Muscle cooling decreased the skin and muscle temperature by 6.7 ± 1.1°C and 8.1 ± 2.5°C, respectively. Fve increased by 24% ± 22% by muscle cooling. ΔF in the thermoneutral and local cooling conditions were 11.5 ± 4.9 N and 12.5 ± 2.9 N, respectively. Fe increased by 28% ± 21% by muscle cooling. These results suggested that muscle cooling increased an elastic component of the passive force arisen from GAS and seemed not to affect its viscous component.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Pages19-21
Number of pages3
Volume7 VOLS
Publication statusPublished - 2005
Externally publishedYes
Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai
Duration: 2005 Sep 12005 Sep 4

Other

Other2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
CityShanghai
Period05/9/105/9/4

Fingerprint

Muscle
Cooling
Mechanical properties
Skin
Temperature
Thermistors
Water

ASJC Scopus subject areas

  • Bioengineering

Cite this

Muraoka, T., Omuro, K., Wakahara, T., Fukunaga, T., & Kanosue, K. (2005). Influence of muscle cooling on the passive mechanical properties of the human gastrocnemius muscle. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 7 VOLS, pp. 19-21). [1616331]

Influence of muscle cooling on the passive mechanical properties of the human gastrocnemius muscle. / Muraoka, Tetsuro; Omuro, Kohei; Wakahara, Taku; Fukunaga, Tetsuo; Kanosue, Kazuyuki.

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. p. 19-21 1616331.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Muraoka, T, Omuro, K, Wakahara, T, Fukunaga, T & Kanosue, K 2005, Influence of muscle cooling on the passive mechanical properties of the human gastrocnemius muscle. in Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 7 VOLS, 1616331, pp. 19-21, 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005, Shanghai, 05/9/1.
Muraoka T, Omuro K, Wakahara T, Fukunaga T, Kanosue K. Influence of muscle cooling on the passive mechanical properties of the human gastrocnemius muscle. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS. 2005. p. 19-21. 1616331
Muraoka, Tetsuro ; Omuro, Kohei ; Wakahara, Taku ; Fukunaga, Tetsuo ; Kanosue, Kazuyuki. / Influence of muscle cooling on the passive mechanical properties of the human gastrocnemius muscle. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. pp. 19-21
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