Table 3

Harmonic ratio values

Harmonic Ratio
YG
EG


CS
FS
Δ (%)
CS
FS
Δ (%)

AP
H
2.96 (0.40)
1.60 (0.18)
-46%
2.60 (0.21)
2.26 (0.18)
-13%

S
5.48 (0.70)
2.41 (0.44)
-56%
4.19 (0.33)
3.41 (0.40)
-19%

P
8.85 (0.79)
6.70 (0.90)
N.S.
6.12 (0.39)
6.05 (0.66)
N.S.

ML
H
3.00 (0.29)
1.78 (0.21)
-41%
3.84 (0.40)
2.06 (0.17)
-46%

S
3.40 (0.29)
2.17 (0.47)
-36%
4.70 (0.54)
2.40 (0.21)
-49%

P
2.86 (0.22)
2.04 (0.36)
-29%
3.11 (0.33)
1.82 (0.21)
-42%

V
H
16.34 (1.31)
11.13 (1.79)
-32%
11.26 (1.07)
9.01 (1.39)
-20%

S
17.57 (1.83)
10.33 (1.65)
-41%
13.72 (1.49)
11.52 (1.72)
-16%

P
17.04 (1.83)
11.70 (1.56)
-31%
11.60 (0.78)
10.25 (1.59)
-11%

Mean (s.e.m.) values of the Harmonic Ratios computed at each body level (H, S, P) and in each direction (AP, ML, V) for the two groups (YG, CG). When significant, the variation (Δ) of the Harmonic Ratio between the comfortable (CS) and the fast speed (FS) conditions is reported as a percentage of the CS value (t-test, p < 0.05; N.S. = not significant).

Mazzà et al. Journal of NeuroEngineering and Rehabilitation 2008 5:30   doi:10.1186/1743-0003-5-30