Dingenen Bart, Janssens Luc, Claes Steven, Bellemans Johan, Staes Filip F
KU Leuven Musculoskeletal Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Leuven (Heverlee), Belgium.
KU Leuven Department of Electrical Engineering, Faculty of Engineering Technology Services, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium.
Hum Mov Sci. 2015 Jun;41:46-58. doi: 10.1016/j.humov.2015.02.001. Epub 2015 Mar 2.
The goal of this study was to evaluate postural stability during the transition from double-leg stance (DLS) to single-leg stance (SLS) in anterior cruciate ligament reconstructed (ACLR) (n=20) and non-injured control subjects (n=20). All ACLR subjects had fully returned to their pre-injury sport participation. Both groups were similar for age, gender, height, weight, body mass index and activity level. Spatiotemporal center of pressure outcomes of both legs of each subject were measured during the transition from DLS to SLS in eyes open and eyes closed conditions. Movement speed was standardized. The center of pressure displacement after a new stability point was reached during the SLS phase was significantly increased in the ACLR group compared to the control group in the eyes closed condition (P=.001). No significant different postural stability outcomes were found between the operated and non-operated legs. In conclusion, the ACLR group showed postural stability deficits, indicating that these persons may have a decreased ability to stabilize their body after the internal postural perturbation created by the transition from DLS to SLS. The non-operated leg may not be the best reference when evaluating postural stability of the operated leg after ACLR, as no differences were found between legs.
本研究的目的是评估前交叉韧带重建术（ACLR）患者（n = 20）和未受伤的对照受试者（n = 20）在从双腿站立（DLS）过渡到单腿站立（SLS）过程中的姿势稳定性。所有接受ACLR的受试者均已完全恢复到受伤前的运动参与水平。两组在年龄、性别、身高、体重、体重指数和活动水平方面相似。在睁眼和闭眼条件下，测量了每个受试者从DLS过渡到SLS过程中双腿的时空压力中心结果。运动速度已标准化。在闭眼条件下，与对照组相比，ACLR组在SLS阶段达到新的稳定点后的压力中心位移显著增加（P = .001）。手术腿和未手术腿之间未发现显著不同的姿势稳定性结果。总之，ACLR组表现出姿势稳定性缺陷，表明这些人在从DLS过渡到SLS所产生的内部姿势扰动后，稳定身体的能力可能下降。在评估ACLR术后手术腿的姿势稳定性时，未手术腿可能不是最佳参考，因为两腿之间未发现差异。
