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Why Measure Mid Thigh Girth

The more a muscle is used, the stronger it becomes. There are a number of factors that influence muscle strength, but one of the more important factors is the cross sectional area of the muscle. This has shown to be directly related to the amount of force a muscle can produce. Lower limbs are used daily and are therefore used to performing weight bearing activities, such as walking. It is these and resistance training weight-bearing activities that increase the size of the muscle (hypertrophy). With the removal of gravity, however, there will be no loading force onto the muscle and thus it will have no stimulus to maintain the area of each muscle fiber. We can therefore determine how long it will take for significant decreases in muscle size (atrophy) to occur after the removal of gravity. This has important consequences to people who have been unable to move or have been bed-ridden for extended periods as the same adaptations to the muscle have been shown to occur in these individuals on earth as occurs in cosmonauts returning from space.

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The Team
Mark Shuttleworth
Dale Cupido
Karen Sharwood
Lara Keytel
Danie Barry
Freddy Khan
Vaughan Oosthuizen
Ravi Naidoo
Vuyo Dwane
Richard Mills
Nicolette Cronje
Wayne Derman
Peter Ribton
Mark's Measurements
Mark's Heart Rate
Mark's 24 Hr Heart Rate
Mark's Energy Intake
Body Weight
Blood Pressure
Mid Thigh Girth
About Health Measurements
Body Composition
Blood Pressure
About Heart Rate
Heart Rate
Research Outline
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Zero-G Heart Rate Data

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