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Table 5.

Recovery from lateral perturbations

Significantly different, perturbed step (number of trials)*Significantly different, step after perturbation (number of trials)Mean number of steps to recoveryNumber of trials recovering within first stepPhase of perturbation in step when animal recovered within first step (%)Phase of perturbation in step when animal did not recover within first step(%)Time to recovery (ms)
Fore—aft velocity 2.0±1.0 (4) 34±48 38±25 99±45 (5) 
Lateral velocity 11 1.6±1.0 (9) 16±15 54±23 27±12 (9) 
Vertical velocity 10 1.9±1.0 (7) 63±26 28±23 48±24 (8) 
Yaw velocity 1.3±0.5 (5) 29 38±30 37±15 (5) 
Pitch velocity 2.3±1.1 (7) 60±36 32±25 41±40 (7) 
Roll velocity 11 3 (1) NA 37±30 101±17 (3) 
Significantly different, perturbed step (number of trials)*Significantly different, step after perturbation (number of trials)Mean number of steps to recoveryNumber of trials recovering within first stepPhase of perturbation in step when animal recovered within first step (%)Phase of perturbation in step when animal did not recover within first step(%)Time to recovery (ms)
Fore—aft velocity 2.0±1.0 (4) 34±48 38±25 99±45 (5) 
Lateral velocity 11 1.6±1.0 (9) 16±15 54±23 27±12 (9) 
Vertical velocity 10 1.9±1.0 (7) 63±26 28±23 48±24 (8) 
Yaw velocity 1.3±0.5 (5) 29 38±30 37±15 (5) 
Pitch velocity 2.3±1.1 (7) 60±36 32±25 41±40 (7) 
Roll velocity 11 3 (1) NA 37±30 101±17 (3) 

Values are means ± S.D.

Numbers in parentheses indicate the number of samples used in the comparison.

NA, not applicable.

*

11 trials were used in the analysis.

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