Members Can Post Anonymously On This Site
-
Similar Topics
-
By NASA
5 Min Read Wearable Tech for Space Station Research
A wearable monitoring device is visible on the left wrist of NASA astronaut Jeanette Epps. Credits: NASA Science in Space Nov 2024
Many of us wear devices that count our steps, measure our heart rate, track sleep patterns, and more. This information can help us make healthy decisions – research shows the devices encourage people to move more, for example – and could flag possible problems, such as an irregular heartbeat.
Wearable monitors also have become common tools for research on human health, including studies on the International Space Station. Astronauts have worn special watches, headbands, vests, and other devices to help scientists examine sleep quality, effectiveness of exercise, heart health, and more.
Warm to the core
Spaceflight can affect body temperature regulation and daily rhythms due to factors such as the absence of convection (a natural process that transfers heat away from the body) and changes in the cardiovascular and metabolic systems.
A current investigation from ESA (European Space Agency), Thermo-Mini or T-Mini examines how the body regulates its core temperature during spaceflight. The study uses a non-invasive headband monitor that astronauts can wear for hours at a time. Data from the monitor allow researchers to determine the effect on body temperature from environmental and physiological factors such as room temperature and humidity, time of day, and physical stress. The same type of sensor already is used on Earth for research in clinical environments, such as improving incubators, and studies of how hotter environments affect human health.
Thermolab, an earlier ESA investigation, examined thermoregulatory and cardiovascular adaptations during rest and exercise in microgravity. Researchers found that core body temperature rises higher and faster during exercise in space than on Earth and that the increase was sustained during rest, a phenomenon that could affect the health of crew members on long-term spaceflight. The finding also raises questions about the thermoregulatory set point humans are assumed to have as well as our ability to adapt to climate change on Earth.
NASA astronaut Nick Hague wears the T-mini device while exercising.NASA To sleep, perchance to dream
Spaceflight is known to disrupt sleep-wake patterns. Actiwatch Spectrum, a device worn on the wrist, contains an accelerometer to measure motion and photodetectors to monitor ambient lighting. It is an upgrade of previous technology used on the space station to monitor the length and quality of crew member sleep. Data from earlier missions show that crew members slept significantly less during spaceflight than before and after. The Actiwatch Sleep-Long investigation used an earlier version of the device to examine how ambient light affects the sleep-wake cycle and found an association between sleep deficiency and changes during spaceflight in circadian patterns, or the body’s response to a normal 24-hour light and dark cycle. Follow up studies are testing lighting systems to address these effects and help astronauts maintain healthy circadian rhythms.
NASA astronaut Sunita Williams wears an Actiwatch as she conducts research.NASA Wearable Monitoring tested a lightweight vest with embedded sensors to monitor heart rate and breathing patterns during sleep and help determine whether changes in heart activity affect sleep quality. The technology offers a significant advantage by monitoring heart activity without waking the test subject and could help patients on Earth with sleep disorders. Researchers reported positive performance and good quality of recorded signals, suggesting that the vest can contribute to comprehensive monitoring of individual health on future spaceflight and in some settings on Earth as well.
These and other studies support development of countermeasures to improve sleep for crew members, helping to maintain alertness and lessen fatigue during missions.
(Not) waiting to exhale
Humans exhale carbon dioxide and too much of it can build up in closed environments, causing headaches, dizziness, and other symptoms. Spacecraft have systems to remove this substance from cabin air, but pockets of carbon dioxide can form and be difficult to detect and remove. Personal CO2 Monitor tested specially designed sensors attached to clothing to monitor the wearer’s immediate surroundings. Researchers reported that the devices functioned adequately as either crew-worn or static monitors, an important step toward using them to determine how carbon dioxide behaves in enclosed systems like spacecraft.
One of the wearable carbon dioxide monitors clipped to the wall near a crew sleeping compartment. Radiation in real time
EVARM, an investigation from CSA (Canadian Space Agency), used small wireless dosimeters carried in a pocket to measure radiation exposure during spacewalks. The data showed that this method is a feasible way to measure radiation exposure, which could help focus routine dosage monitoring where it is most needed. Any shielding and countermeasures developed also could help protect people who work in high-radiation areas on Earth.
ESA’s Active Dosimeter tested a radiation dosimeter worn by crew members to measure changes in their exposure over time based on the space station’s orbit and altitude, the solar cycle, and solar flares. Measurements from the device allowed researchers to analyze radiation dosage across an entire space mission.
ESA astronaut Thomas Pesquet holds one of the mobile units for the Active Dosimeter study.NASA The Active Dosimeter also was among the instruments used to measure radiation on NASA’s Orion spacecraft during its 25.5-day uncrewed Artemis I mission around the Moon and back in 2022.
Another device tested on the space station and then on Artemis I, AstroRad Vest is designed to protect astronauts from solar particle events. Researchers used these and other radiation measuring devices to show that Orion’s design can protect its crew from potentially hazardous radiation levels during lunar missions.
The International Space Station serves as an important testbed for these technologies and many others being developed for future missions to the Moon and beyond.
Melissa Gaskill
International Space Station Research Communications Team
Johnson Space Center
Keep Exploring Discover More Topics From NASA
Humans In Space
Space Station Technology Demonstration
Space Station Research and Technology
Station Science 101: Human Research
View the full article
-
-
By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Roy Armstrong, un instructor de la pasantía de OCEANOS y profesor de ciencias marinas, pilotea un pequeño bote alrededor de los cayos frente a la costa de La Parguera, Puerto Rico.NASA ARC/Milan Loiacono Read this interview in English here
¿Cuál es tu nombre y tu rol en OCEANOS?
Mi nombre es Roy Armstrong y soy profesor del Colegio de Mayagüez en el Departamento de Ciencias Marinas y en Océanos. Yo soy el investigador principal local en la Universidad de Puerto Rico y la manera que me involucré en este proyecto fue por invitación de mi ex estudiante, Juan Torres, quien trabaja en la NASA y se ideó este programa para motivar estudiantes hispanos puertorriqueños, particularmente a seguir carreras en la oceanografía usando tecnología de la NASA.
¿Cuál es la importancia de un programa como OCEANOS, particularmente en Puerto Rico?
Primero, porque son muy pocos los jóvenes que deciden continuar en sus estudios graduados y sobre todo en las ciencias marinas. Y muchos se van fuera de Puerto Rico. Lo que queremos hacer es motivar a estudiantes desde jóvenes, desde escuela superior y a principios de universidad, a que estudien y tengan carreras en la oceanografía, las ciencias marinas, usando tecnología de la NASA, satelital y robótica, etcétera para que entonces se queden en Puerto Rico y trabajen protegiendo nuestros recursos naturales.
¿Qué ha sido algo gratificante de trabajar con estos estudiantes?
Ha sido de gran satisfacción ver como los estudiantes se interesan en estos temas, aunque al principio lleguen con otras ideas en mente de otras carreras que quieren proseguir. Al final algunos deciden cambiar por completo sus preferencias y estudiar entonces ciencias marinas o seguir alguna carrera en tecnologías satelitales o cosas por el estilo. Así que eso para nosotros ha sido de suma satisfacción.
¿Cuál ha sido un desafío del programa?
El reto principal de trabajar con estudiantes primero es mantenerlos motivados y atentos. Así que hay que intercalar diferentes actividades fuera del salón. Las charlas no pueden ser muy extensas y también los temas tienen que ser diversos. Tratamos de que también ellos participen en actividades, en pequeños grupos y participen en proyectos diferentes proyectos de investigación, así que no es todo estar oyendo charlas en un salón de clase, sino que hay muchas otras actividades.
¿Cómo llegaste a la ciencia?
Yo empecé con mi interés en las ciencias marinas desde pequeño, porque yo nací en Puerto Rico, en Ponce y siempre he tenido una admiración inmensa por el mar. Y luego tuve la experiencia en mi 4.º año de universidad en los Estados Unidos de participar en un programa que se llama ‘el semestre en el mar,’ donde participé por seis semanas en un velero grande haciendo estudios de Oceanografía y eso me fascinó, me encantó. Y desde entonces yo supe que eso es lo que yo quería hacer en mi carrera.
¿Cuáles son algunos de los cambios ambientales que ha notado en Puerto Rico y sus alrededores?
En Puerto Rico, al igual que muchas áreas del Caribe y del planeta en general, han ocurrido muchos cambios a través de las décadas. El ambiente marino en las costas y sobre todo en los arrecifes de coral en Puerto Rico. En particular, luego de varios huracanes al final de la década de los setentas una mortandad grande de los corales en aguas bien someras y luego eso dio lugar a enfermedades que afectan los corales por muchos años. En años más recientes hemos tenido también el impacto del humano porque ha habido más presión en los ecosistemas por el uso de múltiples embarcaciones que cada vez son más y más. Así que también se ha deteriorado la calidad de agua en muchos sitios. Y sabemos que esto no es exclusivamente de Puerto Rico, sino que es un problema básicamente a nivel global.
¿Qué es algo que espera que los estudiantes se lleven con ellos cuando se vayan?
Pues mi esperanza con los estudiantes es que en los próximos años que pasen a universidad o que pasen a escuela graduada para estudiar entonces temas relacionados con las ciencias marinas y el uso de la tecnología satelital de la NASA. También espero que se motiven a permanecer en Puerto Rico y participar en el cambio que hace falta de protección de los ecosistemas de parte de una nueva generación que vienen desde pequeño con el interés y también el conocimiento de hacer un cambio notable en el futuro de este país y de nuestros ecosistemas.
Share
Details
Last Updated Nov 12, 2024 Related Terms
General Ames Research Center's Science Directorate Earth Science Earth Science Division Explore More
4 min read Entrevista con Instructora de OCEANOS María Fernanda Barbarena-Arias
Article 5 mins ago 4 min read Entrevista con Instructor de OCEANOS Juan Torres-Pérez
Article 15 mins ago 1 min read Oral History with R. Walter Cunningham
Article 4 hours ago Keep Exploring Discover Related Topics
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA/Quincy Eggert The design and build of a unique NASA pod, produced to advance computer vision for autonomous aviation, was recently completed in-house at NASA’s Armstrong Flight Research Center in Edwards, California, by using the center’s unique fabrication capabilities. The pod is called the NASA Airborne Instrumentation for Real-world Video of Urban Environments (AIRVUE). NASA Armstrong can take an idea from a drawing to flight with help from the center’s Experimental Fabrication Shop.
NASA researcher James Cowart adds the top back onto the NASA Airborne Instrumentation for Real-world Video of Urban Environments (AIRVUE) sensor pod at NASA’s Armstrong Flight Research Center in Edwards, California, in late February 2024. The pod houses sensors, wiring and cameras. The AIRVUE pod was flown on a helicopter at NASA’s Kennedy Space Center in Florida and is used to collect data for future autonomous aircraft.NASA/Genaro Vavuris NASA subject matter experts developed the idea for the project, after which engineers drew up plans and selected materials. The Experimental Fabrication Shop received those plans and gathered the materials to fabricate the pod.
After the pod was built, it moved to NASA Armstrong’s Engineering Support Branch, where electronics technicians and other specialists installed instruments inside of it. Once completed, the pod went through a series of tests at NASA Armstrong to make sure it was safe to fly at NASA’s Kennedy Space Center in Florida on an Airbus H135 helicopter. The engineering team made final adjustments to ensure the pod would collect the correct data prior to installation. More about the design and fabrication process, and the pod’s capabilities, is available to view in a NASA video.
NASA researchers James Cowart and Elizabeth Nail add sensors, wiring and cameras, to the NASA Airborne Instrumentation for Real-world Video of Urban Environments (AIRVUE) sensor pod at NASA’s Armstrong Flight Research Center in Edwards, California, in late February 2024. The AIRVUE pod was flown on a helicopter at NASA’s Kennedy Space Center in Florida and is used to collect data for future autonomous aircraft.NASA/Genaro Vavuris Share
Details
Last Updated Nov 12, 2024 EditorDede DiniusContactTeresa Whitingteresa.whiting@nasa.gov Related Terms
Advanced Air Mobility Aeronautics Ames Research Center Armstrong Flight Research Center Drones & You Glenn Research Center Kennedy Space Center Langley Research Center Explore More
5 min read NASA Funds New Studies Looking at Future of Sustainable Aircraft
Article 31 mins ago 4 min read Interview with OCEANOS Instructor María Fernanda Barbarena-Arias
Article 1 day ago 3 min read Interview with OCEANOS Instructor Samuel Suleiman
Article 1 day ago Keep Exploring Discover More Topics From NASA
Armstrong Flight Research Center
Aeronautics
Advanced Air Mobility Mission
NASA’s Advanced Air Mobility (AAM) research will transform our communities by bringing the movement of people and goods off the ground, on…
Armstrong Capabilities & Facilities
View the full article
-
By European Space Agency
12 November 2024 marks the start of a new year on Mars. At exactly 10:32 CET/09:32 UTC on Earth, the Red Planet begins a new orbit around our Sun.
View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.