Gait in patients with pregnancy-related pain in the pelvis: an emphasis on the coordination of transverse pelvic and thoracic rotations.
OBJECTIVE
To quantify gait impairments in women with pregnancy-related pain in the pelvis which persisted post-partum.Design. Nine patients and nine healthy subjects were studied during treadmill walking at different velocities.


BACKGROUND
Walking problems in patients with pregnancy-related pain in the pelvis have been known to exist for a long time. To date, no quantitative gait studies have been conducted in this population.


METHODS
Maximum attainable walking velocity was determined, amplitudes of pelvic and thoracic rotations were calculated, and spectral analysis was used to assess the harmonicity of these rotations. Coordination between pelvic and thoracic rotations was characterized as mean relative Fourier phase and weighted coherence.


RESULTS
Maximum attainable walking velocity was highly variable between patients, but on average significantly lower than in healthy controls. Moreover, patients had a significantly lower mean relative Fourier phase (again, highly variable) and higher weighted coherence. The other parameters did not differ significantly between groups.


CONCLUSIONS
Coordination between pelvic and thoracic rotations in the transverse plane was affected in patients with pregnancy-related pain in the pelvis. Individual patients may apply different strategies during walking to cope with the underlying problems.


CONCLUSIONS
Pregnancy-related pain in the pelvis is poorly understood. Patients with this condition are known to have problems with locomotion. The present study reveals that gait coordination is altered. Theoretically, this underlines the importance of analysing coordination in pathological movement. Clinically, better understanding the gait problems of women with pregnancy-related pain in the pelvis may contribute to more appropriate treatments.
Wu
Wenhua
W
Department of Orthopaedic Surgery, Academic Hospital, Vrije Universiteit, Amsterdam, The Netherlands.
Meijer
Onno G
OG
Jutte
Paul C
PC
Uegaki
Kimi
K
Lamoth
Claudine J C
CJ
Sander de Wolf
G
G
van Dieën
Jaap H
JH
Wuisman
Paul I J M
PI
Kwakkel
Gert
G
de Vries
Johanna I P
JI
Beek
Peter J
PJ
D000328:Adult; D005080:Exercise Test; D005260:Female; D005583:Fourier Analysis; D005684:Gait; D006801:Humans; D008297:Male; D017699:Pelvic Pain / Q000209:etiology* / Q000503:physiopathology*; D010388:Pelvis / Q000503:physiopathology*; D010507:Periodicity; D011247:Pregnancy; D011248:Pregnancy Complications / Q000503:physiopathology*; D011597:Psychomotor Performance; D012399:Rotation; D012680:Sensitivity and Specificity; D013223:Statistics as Topic; D013909:Thorax / Q000503:physiopathology*