Resistance Exercise Machine within Lower Body Negative Pressure for Counteracting Effects of Microgravity
, , , , oraz | 18 sty 2022
O artykule
Article Category: Research Article
Data publikacji: 18 sty 2022
Zakres stron: 94 - 107
DOI: https://doi.org/10.2478/gsr-2014-0008
© 2014 Christine M. Dailey et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
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Figure 10.
Specifications for the contributing links in the Moments of Inertia (MOI) equations discussed in section Kinematics.
| Specifications | |||||
|---|---|---|---|---|---|
| Link | Height (in) | Weigh (in) | Depth (in) | Mass (lbs) | Moment of Inertia |
| 2.48 | 2.06 | 1.97 | 0.87 | 3.13 | |
| 16.50 | 2.06 | 1.97 | 13.2 | 1727.93 | |
| 16.50 | 2.06 | 1.97 | 13.2 | 1727.93 | |
| 3459 | |||||
UT1
| BW | Body weight |
| G | Gravity |
| GRF | Ground reaction force |
| HR | Heart rate |
| LBNP | Lower body negative pressure |
| γ | The angle between the horizontal and the ground pivot on the right side of the mechanism |
| θ | Input position |
| θ̇ | Velocity |
| θ̈ | Acceleration |
| s | Position of the spring |
| Velocity of the spring | |
| I* | Equivalent inertia of the system |
| mass of inertia | |
| m | mass |
| Resistance provided by the spring | |
| Resistive force | |
| Link length of the member between the horizontal and the ground pivot on the right side of the mechanism | |
| Link length of the member between | |
| Link length of the member below the rotational pivot | |
| Link length of the member above the rotational pivot | |
| ΔP | Pressure differential force- the difference between the pressures inside the Box vs. outside the Box |
| Axy | Cross sectional area of the seal which is placed around the subject’s waist |
| β | The angle between vector |
Spring specifications used in the resistance equations discussed in section Kinematics.
| Spring Properties | |
|---|---|