1. Resume
3. UAV project (work in progress)
5. Lapel Pins/Name Tags
6. Presentations for ISS Research & Development Conference & American Society for Gravitational & Space Research
7. Accelerometer Data for Gymnastics Skills
8. Motorbar/Centrifuge Development
Accelerometer Data/Double Leg Circles
Recently popularized by Stephen Nedoroscik in the 2024 Olympics, the "Double Leg Circle,” is a gymnastics skill where the athlete swings both legs together in a circular motion around a pommel horse or mushroom, maintaining straight arms and an extended body position throughout the rotation.
What’s an Accelerometer?
An accelerometer measures acceleration, or changes in velocity. These sensors are essential for navigation, attitude control, system monitoring, and simulation of space applications.
Acceleration Values for Circles
We found the average acceleration value during terrestrial circles was 3.90 gs, with a standard deviation of 1.56. Placing the accelerometer at the medial malleolus will likely reduce the standard deviation.
In the future, more accelerometer placements will support the data collection efforts, and hopefully other indicators such as intracranial pressure (possibly measured by a two-depth transorbital doppler
NASA’s Response
In the panel review for NASA’s 80JSC019N0001-FLAGSHIP - HERO Appendix A: NASA Research and Technology Development to Support Crew Health and Performance in Space Exploration Missions, the review panel explained gymnastics skills could be a novel countermeasure for Spaceflight Associated Neuro-ocular Syndrome (SANS), but were concerned how double leg circles might create a rostral vector and thereby make SANS worse. Future measurements will include additional sensor readings
Additionally, Astronaut Sunita Williams demonstrated circles in the International Space Station (video).
Terrestrial Trampoline Acceleration Values
This dataset illustrates the net acceleration forces experienced while jumping on a trampoline. Measurements were taken at regular intervals, showing how net acceleration fluctuated significantly during the activity. Initially, the acceleration remained close to 1g (Earth’s gravitational pull), reflecting periods of less intense bouncing. As the jumps progressed, peaks of up to approximately 8g were observed, indicating intense, high-force bounces. These peaks alternate with moments of reduced gravitational forces, close to 0g, simulating brief weightless states at the apex of each jump. This data provides a clear numeric depiction of the dynamic changes in force that occur during trampoline exercises.