Kinematic Analysis of Gait in the Second and Third Trimesters of Pregnancy
Table 1
Spatiotemporal parameters of gait during the later stages of the second and third trimesters of pregnancy () and nulliparous controls (). Units (mean ± sd) of mass (Kg), velocity (m/s), length (m), and time (s).
Second trimester (2T)
Third trimester (3T)
Nonpregnant (NP)
Mass (Kg)
67.082 ± 6.946
71.368 ± 6.652
↑
58.333 ± 8.711
Velocity (m/s)
1.159 ± 0.125
1.127 ± 0.128
1.243 ± 0.089
Stride width (m)
0.096 ± 0.025
0.101 ± 0.027
0.078 ± 0.024
Stride length (m)
1.260 ± 0.098
1.234 ± 0.088
↓
1.316 ± 0.099
↑
Left-step length (m)
0.630 ± 0.051
0.616 ± 0.044
↓
0.657 ± 0.053
↑
Right-step length (m)
0.630 ± 0.049
0.618 ± 0.045
↓
0.659 ± 0.049
↑
Cycle time (s)
1.081 ± 0.054
1.091 ± 0.063
1.048 ± 0.040
Left-step time (s)
0.541 ± 0.030
0.545 ± 0.032
0.523 ± 0.020
Right-step time (s)
0.540 ± 0.026
0.545 ± 0.033
0.525 ± 0.021
Left-stance time (s)
0.640 ± 0.040
0.655 ± 0.046
0.616 ± 0.026
Left-swing time (s)
0.439 ± 0.018
0.435 ± 0.021
0.433 ± 0.018
Right-stance time (s)
0.645 ± 0.042
0.656 ± 0.042
0.616 ± 0.029
Right-swing time (s)
0.438 ± 0.019
0.436 ± 0.025
0.433 ± 0.020
Double limb support time (s)
0.208 ± 0.029
0.219 ± 0.030
↑
0.183 ± 0.018
↓
Bold: significant differences with . ↑significance only with third trimester. ↓ significance with second and third trimesters.
