A new fall-inducing technology platform: Development and assessment of a programmable split-belt treadmill

Area of Science:

• Biomechanics
• Motor Control
• Rehabilitation Technology

Background:

• Fall prevention is crucial, especially for at-risk populations.
• Current training methods often use mechanical obstacles or cable systems to simulate falls.
• There is a need for safer, more controlled methods to induce perturbations for research and training.

Purpose of the Study:

• To propose and validate a novel technology platform for inducing controlled trip perturbations.
• To assess the feasibility of using a split-belt treadmill with real-time gait analysis for fall research.
• To characterize the postural responses to induced trips in healthy adults.

Main Methods:

• Utilized a split-belt treadmill with individual force plates under each belt.
• Implemented a real-time gait phase detection algorithm to trigger perturbations.
• Employed a full-body motion capture system to collect kinematic data.
• Conducted a proof-of-concept study with 10 healthy young adults.

Main Results:

• The proposed split-belt treadmill system successfully induced trip perturbations.
• Congruent postural responses to the induced trips were observed and characterized.
• Kinematic measures effectively captured the effects of the perturbations.

Conclusions:

• The developed technology platform offers a safe and effective method for inducing trip perturbations.
• Findings support the use of this system for studying fall mechanisms and developing interventions.
• This approach has significant implications for designing fall reduction programs for high-risk individuals.