Dingenen Bart, Janssens Luc, Luyckx Thomas, 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 Heverlee, Belgium.
KU Leuven Department of Electrical Engineering, Faculty of Engineering Technology Services, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium; KU Leuven Cardiovascular and Respiratory Rehabilitation Research Group, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, Tervuursevest 101 b1501, 3001 Heverlee, Belgium.
Hum Mov Sci. 2015 Dec;44:234-45. doi: 10.1016/j.humov.2015.09.007. Epub 2015 Sep 26.
The goal of this study was to evaluate muscle activation onset times (MAOT) of both legs during a transition task from double-leg stance (DLS) to single-leg stance (SLS) in anterior cruciate ligament injured (ACLI) (n=15) and non-injured control subjects (n=15) with eyes open and eyes closed. Significantly delayed MAOT were found in the ACLI group compared to the control group for vastus lateralis, vastus medialis obliquus, hamstrings medial, hamstrings lateral, tibialis anterior, peroneus longus and gastrocnemius in both vision conditions, for gluteus maximus and gluteus medius with eyes open and for tensor fascia latae with eyes closed. Within the ACLI group, delayed MAOT of tibialis anterior with eyes open and gastrocnemius with eyes closed were found in the injured leg compared to the non-injured leg. All other muscles were not significantly different between legs. In conclusion, the ACLI group showed delayed MAOT not only around the knee, but also at the hip and ankle muscles compared to the non-injured control group. No differences between both legs of the ACLI group were found, except for tibialis anterior and gastrocnemius. These findings indirectly support including central nervous system re-education training to target the underlying mechanisms of these altered MAOT after ACL injury.
本研究的目的是评估前交叉韧带损伤（ACLI）患者（n = 15）和未受伤对照受试者（n = 15）在睁眼和闭眼状态下从双腿站立（DLS）过渡到单腿站立（SLS）任务期间双腿的肌肉激活起始时间（MAOT）。在两种视觉条件下，与对照组相比，ACLI组的股外侧肌、股内侧斜肌、半腱肌内侧头、半腱肌外侧头、胫骨前肌、腓骨长肌和腓肠肌的MAOT显著延迟；睁眼时臀大肌和臀中肌以及闭眼时阔筋膜张肌的MAOT也显著延迟。在ACLI组中，与未受伤的腿相比，受伤腿睁眼时胫骨前肌和闭眼时腓肠肌的MAOT延迟。其他所有肌肉在双腿之间无显著差异。总之，与未受伤的对照组相比，ACLI组不仅在膝关节周围，而且在髋部和踝部肌肉的MAOT均延迟。除胫骨前肌和腓肠肌外，ACLI组双腿之间未发现差异。这些发现间接支持了包括中枢神经系统再教育训练在内的针对ACL损伤后这些MAOT改变的潜在机制的训练。
