2025 Summer Research Symposium • Iris Reyna • July 9, 2025

Iris Reyna

she/her

Class of 2027

Major: Biology

Mentor: Gary Guerra, PhD, St. Mary’s University

Evaluation of Prosthetic and Orthotic Technologies using AI Technology

Background: Artificial intelligence (AI) is being used at all levels of education and career paths.

In the healthcare field, biomechanical analysis is used to study human movement and evaluate

the mobility and quality of life of individuals with certain interventions.

An artificial intelligence system used to evaluate the health and mobility of individuals with a

smartphone video is sit2stand.ai. This AI application provides sensor technologies at an

inexpensive cost. Providing flexion time and trunk acceleration that is used in the modifications

of prosthetics and orthotics to provided stability, ground reaction force, and injury risk to the

user.

Methods: 10 patients were asked to participate in a research study of the evaluation of

prosthetics and Orthotics. 5 individuals were lower limb amputees, and 5 individuals were ablebodied

to evaluate the effects of the interventions on the individuals' mobility and quality of life.

The patients were asked to sit in a stable chair and to cross their hands over their chest and sit -

and-stand 10 times while being recorded. The videos were then uploaded to the AI application

sit2stand.ai, and data was collected for graphical analysis.

Results: The results show flexion time and trunk acceleration after collected from the AI

application sit2stand.ai. The graphical analysis showed the overall comparison of each individual

that participated in the research and the usability of sit2stand.ai.

Conclusion: Results suggest that the AI application sit2stand.ai is an effective, accessible, user

and clinically friendly at evaluating lower limb prosthesis.

Keywords: sit2stand.ai, Novel Sensor Technology, Prosthetics, Orthotics, AI Application,

Sensor Systems, Statistical Analysis