Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated volitional and reactive stepping movements that mimic the movements necessary to recover balance after tripping while walking.

step training: Participants practice volitional and reactive stepping responses that mimic those needed when recovering balance after tripping.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated exposure to simulated trips on a treadmill. To simulate a trip, participants first stand on the stationary treadmill belt. A sudden and unexpected increase in backward treadmill belt speed induces a forward loss of balance similar to when tripping. Participants are then required to take steps to recover balance and establish a stable gait pattern before the trial ends. Trials are repeated using pseudo-random speeds that provide variability and are individualized to each participant's capabilities.

treadmill training: Sudden treadmill changes in speed (from standing) induce trip-like losses of balance, after which participants take steps to recover balance and establish a stable gait pattern. This is repeated over a range of speeds to both provide training variability and to individualize training to each participant's capability.

Received no training.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated volitional and reactive stepping movements that mimic the movements necessary to recover balance after tripping while walking.

step training: Participants practice volitional and reactive stepping responses that mimic those needed when recovering balance after tripping.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated exposure to simulated trips on a treadmill. To simulate a trip, participants first stand on the stationary treadmill belt. A sudden and unexpected increase in backward treadmill belt speed induces a forward loss of balance similar to when tripping. Participants are then required to take steps to recover balance and establish a stable gait pattern before the trial ends. Trials are repeated using pseudo-random speeds that provide variability and are individualized to each participant's capabilities.

treadmill training: Sudden treadmill changes in speed (from standing) induce trip-like losses of balance, after which participants take steps to recover balance and establish a stable gait pattern. This is repeated over a range of speeds to both provide training variability and to individualize training to each participant's capability.

Received no training.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated volitional and reactive stepping movements that mimic the movements necessary to recover balance after tripping while walking.

step training: Participants practice volitional and reactive stepping responses that mimic those needed when recovering balance after tripping.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated exposure to simulated trips on a treadmill. To simulate a trip, participants first stand on the stationary treadmill belt. A sudden and unexpected increase in backward treadmill belt speed induces a forward loss of balance similar to when tripping. Participants are then required to take steps to recover balance and establish a stable gait pattern before the trial ends. Trials are repeated using pseudo-random speeds that provide variability and are individualized to each participant's capabilities.

treadmill training: Sudden treadmill changes in speed (from standing) induce trip-like losses of balance, after which participants take steps to recover balance and establish a stable gait pattern. This is repeated over a range of speeds to both provide training variability and to individualize training to each participant's capability.

Received no training.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated volitional and reactive stepping movements that mimic the movements necessary to recover balance after tripping while walking.

step training: Participants practice volitional and reactive stepping responses that mimic those needed when recovering balance after tripping.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated exposure to simulated trips on a treadmill. To simulate a trip, participants first stand on the stationary treadmill belt. A sudden and unexpected increase in backward treadmill belt speed induces a forward loss of balance similar to when tripping. Participants are then required to take steps to recover balance and establish a stable gait pattern before the trial ends. Trials are repeated using pseudo-random speeds that provide variability and are individualized to each participant's capabilities.

treadmill training: Sudden treadmill changes in speed (from standing) induce trip-like losses of balance, after which participants take steps to recover balance and establish a stable gait pattern. This is repeated over a range of speeds to both provide training variability and to individualize training to each participant's capability.

Received no training.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated volitional and reactive stepping movements that mimic the movements necessary to recover balance after tripping while walking.

step training: Participants practice volitional and reactive stepping responses that mimic those needed when recovering balance after tripping.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated exposure to simulated trips on a treadmill. To simulate a trip, participants first stand on the stationary treadmill belt. A sudden and unexpected increase in backward treadmill belt speed induces a forward loss of balance similar to when tripping. Participants are then required to take steps to recover balance and establish a stable gait pattern before the trial ends. Trials are repeated using pseudo-random speeds that provide variability and are individualized to each participant's capabilities.

treadmill training: Sudden treadmill changes in speed (from standing) induce trip-like losses of balance, after which participants take steps to recover balance and establish a stable gait pattern. This is repeated over a range of speeds to both provide training variability and to individualize training to each participant's capability.

Received no training.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated volitional and reactive stepping movements that mimic the movements necessary to recover balance after tripping while walking.

step training: Participants practice volitional and reactive stepping responses that mimic those needed when recovering balance after tripping.

Two training sessions per week will be completed for three consecutive weeks. Each training session will last 0.5-1 hour with an active training time of 30 minutes per participant. Training will involve repeated exposure to simulated trips on a treadmill. To simulate a trip, participants first stand on the stationary treadmill belt. A sudden and unexpected increase in backward treadmill belt speed induces a forward loss of balance similar to when tripping. Participants are then required to take steps to recover balance and establish a stable gait pattern before the trial ends. Trials are repeated using pseudo-random speeds that provide variability and are individualized to each participant's capabilities.

treadmill training: Sudden treadmill changes in speed (from standing) induce trip-like losses of balance, after which participants take steps to recover balance and establish a stable gait pattern. This is repeated over a range of speeds to both provide training variability and to individualize training to each participant's capability.

Received no training.