Study: NCT03532984

Intervention type: DIAGNOSTIC_TEST
Intervention: Beam test to predict falls
Description: Dynamic balance will be determined in all participants during beam walking. The beams are 4m long, 2cm high, and 4, 8, and 12cm wide. After a practice trial, participants will perform three trials on each width with and without a calculation task. Trials will be block-randomized based on beam width then on task. Instructions: 'Traverse the entire length of the beam safely at your preferred speed without stepping off, facing forward, with your arms folded in front of your chest. Trials end when you step off, walk sideways, or unfold the arms.' Outcomes are the sum of length traversed, average velocity, number of steps, and average step length determined from video recordings made at 90° relative to the walking direction with full beam length in view using off-the-shelf video cameras.

Intervention type: DIAGNOSTIC_TEST
Intervention: Beam test to predict falls
Description: Dynamic balance will be determined in all participants during beam walking. The beams are 4m long, 2cm high, and 4, 8, and 12cm wide. After a practice trial, participants will perform three trials on each width with and without a calculation task. Trials will be block-randomized based on beam width then on task. Instructions: 'Traverse the entire length of the beam safely at your preferred speed without stepping off, facing forward, with your arms folded in front of your chest. Trials end when you step off, walk sideways, or unfold the arms.' Outcomes are the sum of length traversed, average velocity, number of steps, and average step length determined from video recordings made at 90° relative to the walking direction with full beam length in view using off-the-shelf video cameras.

Intervention type: DIAGNOSTIC_TEST
Intervention: Beam test to predict falls
Description: Dynamic balance will be determined in all participants during beam walking. The beams are 4m long, 2cm high, and 4, 8, and 12cm wide. After a practice trial, participants will perform three trials on each width with and without a calculation task. Trials will be block-randomized based on beam width then on task. Instructions: 'Traverse the entire length of the beam safely at your preferred speed without stepping off, facing forward, with your arms folded in front of your chest. Trials end when you step off, walk sideways, or unfold the arms.' Outcomes are the sum of length traversed, average velocity, number of steps, and average step length determined from video recordings made at 90° relative to the walking direction with full beam length in view using off-the-shelf video cameras.

Intervention type: DIAGNOSTIC_TEST
Intervention: Beam test to predict falls
Description: Dynamic balance will be determined in all participants during beam walking. The beams are 4m long, 2cm high, and 4, 8, and 12cm wide. After a practice trial, participants will perform three trials on each width with and without a calculation task. Trials will be block-randomized based on beam width then on task. Instructions: 'Traverse the entire length of the beam safely at your preferred speed without stepping off, facing forward, with your arms folded in front of your chest. Trials end when you step off, walk sideways, or unfold the arms.' Outcomes are the sum of length traversed, average velocity, number of steps, and average step length determined from video recordings made at 90° relative to the walking direction with full beam length in view using off-the-shelf video cameras.

Intervention type: DIAGNOSTIC_TEST
Intervention: Beam test to predict falls
Description: Dynamic balance will be determined in all participants during beam walking. The beams are 4m long, 2cm high, and 4, 8, and 12cm wide. After a practice trial, participants will perform three trials on each width with and without a calculation task. Trials will be block-randomized based on beam width then on task. Instructions: 'Traverse the entire length of the beam safely at your preferred speed without stepping off, facing forward, with your arms folded in front of your chest. Trials end when you step off, walk sideways, or unfold the arms.' Outcomes are the sum of length traversed, average velocity, number of steps, and average step length determined from video recordings made at 90° relative to the walking direction with full beam length in view using off-the-shelf video cameras.