Biomechanical effects of manipulating peak vertical ground reaction force throughout gait in individuals 6-12 months after anterior cruciate ligament reconstruction.
Biomechanical effects of manipulating peak vertical ground reaction force throughout gait in individuals 6-12 months after anterior cruciate ligament reconstruction.
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DOI：
10.1016/j.clinbiomech.2020.105014
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发表时间：
2020-06
期刊：
影响因子：
--
通讯作者：
Pietrosimone B
中科院分区：
文献类型：
--
作者：
Evans-Pickett A;Davis-Wilson HC;Luc-Harkey BA;Blackburn JT;Franz JR;Padua DA;Seeley MK;Pietrosimone B
我们的目的是确定在前交叉韧带重建后6-12个月的个体中，垂直地反力冲击峰值（在站立前50%的峰值）的增加或减少对垂直地反力、膝关节屈曲角、膝关节内伸力矩和膝关节内外展力矩波形的影响。12个人完成了3个条件（高、低和控制），其中高和低条件分别导致体重增加或减少5%，在垂直地面反作用力冲击峰值与正常行走相比。在高、低条件下与控制条件下的生物力学进行比较。高条件导致：(a)垂直地面反作用力在每个峰值时增加，在站立中期减少，(b)更大的膝关节偏移（即，站立早期的膝关节弯曲角度更大，站立后期的膝关节伸展更大），(c)大多数站立时更大的内伸力矩，以及(d)较小的第二次膝关节内展力矩峰值。低条件导致：(a)垂直地面反作用力在站立早期减少，在站立中期增加，(b)膝关节偏移减少，(c)整个站立期间内伸力矩增加，(d)膝关节内展力矩峰值减少。在垂直地面反作用力冲击峰值时，体重增加5%导致更动态的垂直地面反作用力加载模式，膝关节偏移增加，站立时更大的内部伸展力矩，这可能有助于恢复前交叉韧带重建后的步态模式。
We aimed to determine the effect of cueing an increase or decrease in the vertical ground reaction force impact peak (peak in the first 50% of stance) on vertical ground reaction force, knee flexion angle, internal knee extension moment, and internal knee abduction moment waveforms throughout stance in individuals 6–12 months after an anterior cruciate ligament reconstruction. Twelve individuals completed 3 conditions (High, Low, and Control) where High and Low Conditions cue a 5% body weight increase or decrease, respectively, in the vertical ground reaction force impact peak compared to usual walking. Biomechanics during High and Low Conditions were compared to the Control Condition throughout stance. The High Condition resulted in: (a) increased vertical ground reaction forces at each peak and decreased during mid-stance, (b) greater knee excursion (i.e., greater knee flexion angle in early stance and a more extended knee in late stance), (c) greater internal extension moment for the majority of stance, and (d) lesser second internal knee abduction moment peak. The Low Condition resulted in: (a) vertical ground reaction forces decreased during early stance and increased during mid-stance, (b) decreased knee excursion, (c) increased internal extension moment throughout stance, and (d) decreased internal knee abduction moment peaks. Cueing a 5% body weight increase in vertical ground reaction force impact peak resulted in a more dynamic vertical ground reaction force loading pattern, increased knee excursion, and a greater internal extension moment during stance which may be useful in restoring gait patterns following anterior cruciate ligament reconstruction.
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影响因子：
7
作者：
Chehab, E. F.;Favre, J.;Erhart-Hledik, J. C.;Andriacchi, T. P.
通讯作者：
Andriacchi, T. P.
影响因子：
7
作者：
Davis, H. C.;Luc-Harkey, B. A.;Pietrosimone, B.
通讯作者：
Pietrosimone, B.
DOI：
10.1002/jor.23317
发表时间：
2017-03
期刊：
Journal of orthopaedic research : official publication of the Orthopaedic Research Society
影响因子：
--
作者：
Erhart-Hledik JC;Chu CR;Asay JL;Andriacchi TP
通讯作者：
Andriacchi TP
影响因子：
1.8
作者：
Keller, TS;Weisberger, AM;Spengler, DM
通讯作者：
Spengler, DM
影响因子：
3.8
作者：
Andriacchi, Thomas P.;Favre, Julien;Chu, Constance R.
通讯作者：
Chu, Constance R.