Dag Figen, Dal Ugur, Altinkaya Zeynep, Erdogan Ayhan Taner, Ozdemir Emre, Yildirim Didem Derici, Colak Mehmet
Mersin University, School of Medicine, Department of Physical Medicine and Rehabilitation, Mersin, Turkey.
Mersin University, School of Medicine, Department of Physiology, Mersin, Turkey.
Acta Orthop Traumatol Turc. 2019 Jan;53(1):50-55. doi: 10.1016/j.aott.2018.10.006. Epub 2018 Oct 25.
The aim of this study was to determine the alterations of walking energy expenditure and plantar pressure distribution in young adults with patellofemoral pain syndrome (PFPS).
Thirty five individuals (mean age: 21.31 ± 1.76) with PFPS constituted the patient group and forty healthy participants (mean age: 21.40 ± 2.11) the control group. Preferred walking speeds (PWS) were determined on the over ground. Individuals walked on a treadmill for 7 min at their PWS and 30% above PWS and oxygen consumption was recorded via a metabolic analyzer. Net oxygen consumption was calculated for each walking trial. Borg scale was applied to assess perceived exertion during walking trial. Plantar pressure distributions were measured by a pedobarography device. Plantar area was subdivided into six zones to evaluate the dynamic plantar pressure data.
The mean PWS of PFPS and control groups were 4.69 ± 0.51 and 4.52 ± 0.60 km/h, respectively (p > .09). No significant difference was observed in energy expenditure during walking at PWS between 2 groups while oxygen consumption during 30% above PWS was higher in patient group (18.72 ± 3.75 and 16.64 ± 3.27) (p = .007). Net oxygen consumption was also found to be higher in PFPS group (15.12 ± 3.62 and 13.04 ± 3.24) (p = .005). The mean Borg scores were significantly higher in PFPS group at each walking trials (p < .001). No statistically significant difference was found between weight distribution (%) of symptomatic and nonsymptomatic extremity (50.45 ± 3.92% and 49.56 ± 3.93%, respectively) (p = .509). Dynamic pedobarography parameters were not different between 2 groups, and also between symptomatic and nonsymptomatic extremities (p > .05).
Although, rate of perceived exertion and energy expenditure during walking at 30% above PWS are affected negatively in young adults with PFPS, we may speculate that energy consumption and plantar pressure distribution can be compensated by a physiologic adaptation mechanism during walking at PWS.
Level III, Therapeutic Study.
本研究旨在确定髌股关节疼痛综合征（PFPS）青年患者步行能量消耗和足底压力分布的变化。
35例PFPS患者（平均年龄：21.31±1.76岁）组成患者组，40例健康参与者（平均年龄：21.40±2.11岁）组成对照组。在平地上测定最舒适步行速度（PWS）。受试者在跑步机上以其PWS及高于PWS 30%的速度行走7分钟，通过代谢分析仪记录耗氧量。计算每次步行试验的净耗氧量。应用Borg量表评估步行试验期间的主观用力程度。用足压计测量足底压力分布。将足底区域分为六个区以评估动态足底压力数据。
PFPS组和对照组的平均PWS分别为4.69±0.51和4.52±0.60 km/h（p>.09）。两组在以PWS步行时的能量消耗无显著差异，而在高于PWS 30%时患者组的耗氧量更高（分别为18.72±3.75和16.64±3.27）（p=.007）。还发现PFPS组的净耗氧量更高（分别为15.12±3.62和13.04±3.24）（p=.005）。在每次步行试验中，PFPS组的平均Borg评分显著更高（p<.001）。有症状和无症状肢体的重量分布（%）之间未发现统计学显著差异（分别为50.45±3.92%和49.56±3.93%）（p=.509）。两组之间以及有症状和无症状肢体之间的动态足压计参数无差异（p>.05）。
尽管高于PWS 30%步行时，PFPS青年患者的主观用力程度和能量消耗受到负面影响，但我们可以推测，在以PWS步行期间，能量消耗和足底压力分布可通过生理适应机制得到补偿。
三级，治疗性研究。
