Physiological Aspects of Walking in Simulated Hypogravity

Thomas Salisbury; Rafael R Baptista; Joan Fei; Felipe Susin; Thais Russomano

Physiological Aspects of Walking in Simulated Hypogravity

Thomas Salisbury, Rafael R Baptista, Joan Fei, Felipe Susin, Thais Russomano

Centre for Human & Applied Physiological Sciences

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

3 Citations (Scopus)

71 Downloads (Pure)

Abstract

The purpose of this study was to compare the differences in gait between land (1G), Lunar (Lunar G), and Martian (Mars G) based ambulation. Nine subjects (mean age = 24.2 ± 3.4; weight = 69.88 ± 14.65kg; height = 163.22 ± 7.8cm; 5 male and 4 female) were placed in a Body Suspension Device (BSD) and had baseline oxygen consumption (VO2) measured along with measures of comfort, pain, and exertion. Then, the BSD was engaged and the subjects underwent 10 min of walking at a self-selected speed in a simulated Mars G or Lunar G environment. The findings demonstrate that as gravity is decreased, self-selected walking speed decreases. However, there was no significant difference in relative and absolute VO2 between Lunar G and Mars G. The experiment will be repeated using a lower body positive pressure device that will enable the comparison of results.

Original language	English
Pages (from-to)	13-23
Journal	Journal of Exercise Physiology Online
Volume	18
Issue number	6
Publication status	Published - Dec 2015

Keywords

Body weight support device
Oxygen consumption
Weightlessness
Gait

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title = "Physiological Aspects of Walking in Simulated Hypogravity",

abstract = "The purpose of this study was to compare the differences in gait between land (1G), Lunar (Lunar G), and Martian (Mars G) based ambulation. Nine subjects (mean age = 24.2 ± 3.4; weight = 69.88 ± 14.65kg; height = 163.22 ± 7.8cm; 5 male and 4 female) were placed in a Body Suspension Device (BSD) and had baseline oxygen consumption (VO2) measured along with measures of comfort, pain, and exertion. Then, the BSD was engaged and the subjects underwent 10 min of walking at a self-selected speed in a simulated Mars G or Lunar G environment. The findings demonstrate that as gravity is decreased, self-selected walking speed decreases. However, there was no significant difference in relative and absolute VO2 between Lunar G and Mars G. The experiment will be repeated using a lower body positive pressure device that will enable the comparison of results.",

keywords = "Body weight support device , Oxygen consumption, Weightlessness, Gait",

author = "Thomas Salisbury and Baptista, {Rafael R} and Joan Fei and Felipe Susin and Thais Russomano",

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month = dec,

language = "English",

volume = "18",

pages = "13--23",

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T1 - Physiological Aspects of Walking in Simulated Hypogravity

AU - Salisbury, Thomas

AU - Baptista, Rafael R

AU - Fei, Joan

AU - Susin, Felipe

AU - Russomano, Thais

PY - 2015/12

Y1 - 2015/12

N2 - The purpose of this study was to compare the differences in gait between land (1G), Lunar (Lunar G), and Martian (Mars G) based ambulation. Nine subjects (mean age = 24.2 ± 3.4; weight = 69.88 ± 14.65kg; height = 163.22 ± 7.8cm; 5 male and 4 female) were placed in a Body Suspension Device (BSD) and had baseline oxygen consumption (VO2) measured along with measures of comfort, pain, and exertion. Then, the BSD was engaged and the subjects underwent 10 min of walking at a self-selected speed in a simulated Mars G or Lunar G environment. The findings demonstrate that as gravity is decreased, self-selected walking speed decreases. However, there was no significant difference in relative and absolute VO2 between Lunar G and Mars G. The experiment will be repeated using a lower body positive pressure device that will enable the comparison of results.

AB - The purpose of this study was to compare the differences in gait between land (1G), Lunar (Lunar G), and Martian (Mars G) based ambulation. Nine subjects (mean age = 24.2 ± 3.4; weight = 69.88 ± 14.65kg; height = 163.22 ± 7.8cm; 5 male and 4 female) were placed in a Body Suspension Device (BSD) and had baseline oxygen consumption (VO2) measured along with measures of comfort, pain, and exertion. Then, the BSD was engaged and the subjects underwent 10 min of walking at a self-selected speed in a simulated Mars G or Lunar G environment. The findings demonstrate that as gravity is decreased, self-selected walking speed decreases. However, there was no significant difference in relative and absolute VO2 between Lunar G and Mars G. The experiment will be repeated using a lower body positive pressure device that will enable the comparison of results.

KW - Body weight support device

KW - Oxygen consumption

KW - Weightlessness

KW - Gait

M3 - Article

SN - 1097-9751

VL - 18

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EP - 23

JO - Journal of Exercise Physiology Online

JF - Journal of Exercise Physiology Online

IS - 6

ER -

Physiological Aspects of Walking in Simulated Hypogravity

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