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|
Parameter
|
SEM
|
%SEM
|
Upper 95% CL
|
SEM
|
%SEM
|
Upper 95% CL
|
|---|
|
SNP
|
PLHIV
|
|---|
|
Spatial parameters
|
|
Step length (cm)
|
4.01
|
6.09
|
4.81
|
4.33
|
6.82
|
5.20
|
|
Normalized step length
|
0.04
|
5.20
|
0.05
|
0.05
|
6.98
|
0.06
|
|
Stride length (cm)
|
3.20
|
2.46
|
3.84
|
4.03
|
3.23
|
4.84
|
|
Normalized stride length
|
0.04
|
2.65
|
0.05
|
0.05
|
3.56
|
0.06
|
|
Temporal parameters
|
|
Cadence (steps/min)
|
8.31
|
7.08
|
9.97
|
9.67
|
8.82
|
11.60
|
|
Normalized cadence
|
2.45
|
7.04
|
2.94
|
2.83
|
8.57
|
3.40
|
|
Stance time (s)
|
0.06
|
9.78
|
0.07
|
0.03
|
4.48
|
0.04
|
|
Step time (s)
|
0.04
|
7.70
|
0.05
|
0.04
|
7.22
|
0.05
|
|
Single support time (s)
|
0.03
|
7.14
|
0.04
|
0.03
|
6.91
|
0.04
|
|
Double support time (s)
|
0.03
|
15.23
|
0.04
|
0.03
|
12.77
|
0.04
|
|
Temporophasic parameters
|
|
Stance percentage (%GC)
|
1.97
|
3.31
|
2.36
|
1.60
|
2.63
|
1.92
|
|
Single support percentage (%GC)
|
2.56
|
6.34
|
3.07
|
2.49
|
6.32
|
2.99
|
|
Double support percentage (%GC)
|
2.18
|
11.42
|
2.62
|
2.30
|
10.71
|
2.76
|
|
Temporospatial parameters
|
|
Gait speed (m/s)
|
0.02
|
1.58
|
0.02
|
0.02
|
1.75
|
0.02
|
|
Normalized gait speed
|
0.04
|
9.20
|
0.05
|
0.04
|
10.34
|
0.05
|
- SEM 95% CL were calculated using a sample-and-trial-specific multiplying factor of 1.2 [19]
- %SEM absolute percentage SEM, CL confidence limits of SEM, GC gait cycle, PLHIV people living with HIV-1 infection, SEM standard error of measurement, SNP HIV-seronegative participants
