Effect of resistance training on changes in lymphocyte subpopulation during head-down-tilt bed rest.

Rie Wakimizu; Zheng Chen; Hideoki Fukuoka; Nobuo Suzuki; Jun Nomura

Effect of resistance training on changes in lymphocyte subpopulation during head-down-tilt bed rest.

Rie Wakimizu, Zheng Chen, Hideoki Fukuoka, Nobuo Suzuki, Jun Nomura

Research output: Contribution to journal › Article › peer-review

Abstract

Head-down-tilt (HDT) bed rest imitates microgravity-like conditions for a supine human body on the ground. On the other hand, resistance training is used to eliminate unfavorable physical changes in astronauts under a microgravity environment during spaceflight. Twelve healthy males voluntarily participated in a 20-day -6 degrees HDT bed rest study. The ratio of CD3-positive peripheral blood lymphocytes were analyzed by immunofluorescence staining. Volunteers who undertook resistance-training during HDT bed rest were designated as the resistance training group (RTG), and those who did not as non-resistance-training group (N-RTG). We could not observe significant differences in the ratio of CD3-positive peripheral blood lymphocytes between RTG and N-RTG. Thus, resistance training during HDT bed rest might not have a significant effect on changes in the ratios of CD3-positive PBL.

Original language	English
Pages (from-to)	200
Number of pages	1
Journal	Biological sciences in space = Uchū seibutsu kagaku
Volume	17
Issue number	3
Publication status	Published - 2003 Oct
Externally published	Yes

ASJC Scopus subject areas

Medicine(all)

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title = "Effect of resistance training on changes in lymphocyte subpopulation during head-down-tilt bed rest.",

abstract = "Head-down-tilt (HDT) bed rest imitates microgravity-like conditions for a supine human body on the ground. On the other hand, resistance training is used to eliminate unfavorable physical changes in astronauts under a microgravity environment during spaceflight. Twelve healthy males voluntarily participated in a 20-day -6 degrees HDT bed rest study. The ratio of CD3-positive peripheral blood lymphocytes were analyzed by immunofluorescence staining. Volunteers who undertook resistance-training during HDT bed rest were designated as the resistance training group (RTG), and those who did not as non-resistance-training group (N-RTG). We could not observe significant differences in the ratio of CD3-positive peripheral blood lymphocytes between RTG and N-RTG. Thus, resistance training during HDT bed rest might not have a significant effect on changes in the ratios of CD3-positive PBL.",

author = "Rie Wakimizu and Zheng Chen and Hideoki Fukuoka and Nobuo Suzuki and Jun Nomura",

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T1 - Effect of resistance training on changes in lymphocyte subpopulation during head-down-tilt bed rest.

AU - Wakimizu, Rie

AU - Chen, Zheng

AU - Fukuoka, Hideoki

AU - Suzuki, Nobuo

AU - Nomura, Jun

PY - 2003/10

Y1 - 2003/10

N2 - Head-down-tilt (HDT) bed rest imitates microgravity-like conditions for a supine human body on the ground. On the other hand, resistance training is used to eliminate unfavorable physical changes in astronauts under a microgravity environment during spaceflight. Twelve healthy males voluntarily participated in a 20-day -6 degrees HDT bed rest study. The ratio of CD3-positive peripheral blood lymphocytes were analyzed by immunofluorescence staining. Volunteers who undertook resistance-training during HDT bed rest were designated as the resistance training group (RTG), and those who did not as non-resistance-training group (N-RTG). We could not observe significant differences in the ratio of CD3-positive peripheral blood lymphocytes between RTG and N-RTG. Thus, resistance training during HDT bed rest might not have a significant effect on changes in the ratios of CD3-positive PBL.

AB - Head-down-tilt (HDT) bed rest imitates microgravity-like conditions for a supine human body on the ground. On the other hand, resistance training is used to eliminate unfavorable physical changes in astronauts under a microgravity environment during spaceflight. Twelve healthy males voluntarily participated in a 20-day -6 degrees HDT bed rest study. The ratio of CD3-positive peripheral blood lymphocytes were analyzed by immunofluorescence staining. Volunteers who undertook resistance-training during HDT bed rest were designated as the resistance training group (RTG), and those who did not as non-resistance-training group (N-RTG). We could not observe significant differences in the ratio of CD3-positive peripheral blood lymphocytes between RTG and N-RTG. Thus, resistance training during HDT bed rest might not have a significant effect on changes in the ratios of CD3-positive PBL.

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