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Table 1 Stride-to-stride synergy variability parameters for stride velocity

From: Examination of the gait pattern based on adjusting and resulting components of the stride-to-stride variability: proof of concept

 

Adjusting variance

Resulting variance

Adjusting/resulting variance ratio

CI 95%

Trial 1

 lagi+½

0.040 (0.019)

0.042 (0.015)

1.0 (0.4)

(0.8–1.2)

 lagi+1

0.060 (0.025)

0.022 (0.008)

2.9 (1.4)**

(2.3–3.6)

 lagi+1½

0.043 (0.018)

0.041 (0.019)

1.2 (0.5)

(1.0–1.4)

 lagi+2

0.042 (0.017)

0.040 (0.020)

1.2 (0.5)

(0.9–1.4)

Trial 2

 lagi+½

0.034 (0.011)

0.045 (0.011)

0.8 (0.3)*

(0.7–0.9)

 lagi+1

0.055 (0.018)

0.022 (0.006)

2.8 (1.5)**

(2.1–3.4)

 lagi+1½

0.042 (0.012)

0.035 (0.011)

1.3 (0.4)

(1.0– 1.5)

 lagi+2

0.038 (0.010)

0.040 (0.011)

1.0 (0.4)

(0.9–1.2)

  1. Variance parameters are presented by mean values (SD), as well as confidence intervals for their ratio, with respect to stride-to-stride comparisons with four different time-lags: lagi+½ the following contralateral stride; lagi+1 the following ipsilateral stride; lagi+1½ the second following contralateral stride; lagi+2 the second following ipsilateral stride
  2. * P < 0.01
  3. ** P < 0.001