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孕期步态协调性:骨盆和胸廓的横向旋转及其相对相位

Gait coordination in pregnancy: transverse pelvic and thoracic rotations and their relative phase.

作者信息

Wu Wenhua, Meijer Onno G, Lamoth Claudine J C, Uegaki Kimi, van Dieën Jaap H, Wuisman Paul I J M, de Vries Johanna I P, Beek Peter J

机构信息

Department of Orthopaedic Surgery, VU Medical Centre, The Netherlands.

出版信息

Clin Biomech (Bristol). 2004 Jun;19(5):480-8. doi: 10.1016/j.clinbiomech.2004.02.003.

Abstract

OBJECTIVE

To examine the effects of pregnancy on the coordination of transverse pelvic and thoracic rotations during gait.

DESIGN

Gait of healthy pregnant women and nulligravidae was studied during treadmill walking at predetermined velocities ranging from 0.17 to 1.72 m/s.

BACKGROUND

pelvis-thorax coordination during walking is altered in women with postpartum pregnancy-related pelvic girdle pain. This coordination has not been investigated in a healthy pregnant population.

METHODS

Comfortable walking velocity was established. Amplitudes of pelvic and thoracic rotations were calculated. Their coordination was characterized by relative Fourier phase and its standard deviation.

RESULTS

Comfortable walking velocity was significantly reduced. The amplitudes of pelvic and thoracic rotations were somewhat reduced, with significantly smaller intra-individual standard deviations. Also pelvis-thorax relative Fourier phase was somewhat smaller, its intra-individual standard deviation was negatively correlated with week of pregnancy, and significantly lower at velocities > or = 1.06 m/s.

CONCLUSIONS

The general pattern of gait kinematics in pregnant women is very similar to that of nulligravidae. Still, it appears that pregnant women experience difficulties in realizing the more anti-phase pelvis-thorax coordination that is required at higher walking velocities.

RELEVANCE

The present study shows that gait in healthy pregnancy is remarkably normal, but some differences in pelvis-thorax coordination were detected. In healthy pregnancy, anti-phase pelvis-thorax coordination appears difficult, but less so than in pregnancy-related pelvic girdle pain. Better understanding of gait in healthy pregnancy may provide insight into the gait problems of women with pregnancy-related pelvic girdle pain.

摘要

目的

研究妊娠对步态中骨盆横向旋转与胸廓旋转协调性的影响。

设计

在跑步机上以0.17至1.72米/秒的预定速度行走时,对健康孕妇和未孕女性的步态进行研究。

背景

产后患有与妊娠相关的骨盆带疼痛的女性在行走时骨盆-胸廓协调性会发生改变。尚未在健康孕妇群体中对这种协调性进行研究。

方法

确定舒适步行速度。计算骨盆和胸廓旋转的幅度。通过相对傅里叶相位及其标准差来表征它们的协调性。

结果

舒适步行速度显著降低。骨盆和胸廓旋转的幅度有所减小,个体内标准差显著更小。此外,骨盆-胸廓相对傅里叶相位也有所减小,其个体内标准差与孕周呈负相关,并且在速度≥1.06米/秒时显著更低。

结论

孕妇步态运动学的总体模式与未孕女性非常相似。然而,孕妇在实现较高步行速度所需的更反向的骨盆-胸廓协调性方面似乎存在困难。

相关性

本研究表明,健康妊娠期间的步态非常正常,但在骨盆-胸廓协调性方面检测到了一些差异。在健康妊娠中,反向骨盆-胸廓协调性似乎难以实现,但比与妊娠相关的骨盆带疼痛的情况要好一些。更好地了解健康妊娠期间的步态可能有助于深入了解患有与妊娠相关的骨盆带疼痛的女性的步态问题。

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