Efficacy Analysis Of The Body Weight Supported Treadmill Training Combined With Knee Joint Controlling On Knee Hyperextension In Stroke Patients

Objective:To observe the efficacy of the body weight supported treadmill training combined with knee control by quantitatively analyzing plantar pressure distribution in stroke patients with knee hyperextension based on a plantar pressure device,assessment of movement,balance and walking ability of both lower limbs in conjunction with the rehabilitation assessment scale,in order to provide a new composite rehabilitation strategy for improving lower limb stability and walking ability.Methods:In terms of the inclusion criteria based on the research,Thrity patients with knee hyperextension in stroke who had been treated in the Department of Rehabilitation Medicine of the First Affiliated Hospital of Anhui Medical University from June 2021 to June 2022 were selected and divided into 15 cases in the control group and 15 cases in the experimental group by using the random number table method.To be specific,the control group received conventional rehabilitation training such as physiotherapy and occupational therapy,whereas the experimental group received conventional training with weight loss gait training and knee joint control training.After 4 weeks of treatment,the Berg Balance Scale(BBS),Fugl-Meyer Assessment of Lower Extremity(FMA-LE),10-meter Walking Test(10MWT),the number of knee hyperextension measurements and plantar pressure analysis[including bilateral plantar pressure percentage,symmetry index(SI)and Center of Pressure(COP)]were observed in both groups of stroke patients with knee hyperextension.Apart from that,fifteen age-and gender-matched healthy subjects were selected as normal controls to collect plantar pressure data in the standing position.Results:Firstly,general information about the research,a total of 45 subjects(15 in the control group,15 in the experimental group and 15 in the healthy subjects)had been included in this study and all successfully completed this study without any withdrawal for any reason.Among them,there were 10 cases of cerebral infarction and 5 cases of cerebral haemorrhage in the control group,as well as 8 cases of cerebral infarction and 7cases of cerebral haemorrhage in the experimental group.There was no statistically significant difference between the general information(gender and age)of the three groups(P>0.05),indicating that the baseline information of the three groups was comparable.Secondly,comparison of rehabilitation assessment before and after treatment in 2 groups of stroke patients with hemiplegia,after 4 weeks of rehabilitation treatment,the BBS,FMA-LE,10MWT and the number of knee hyperextension measurements in both groups improved in comparison to those before treatment(P<0.05),except for the10MWT,the results of the experimental group were better than those of the control group(P<0.05)[BBS scores:(22.87±1.96)points vs.(20.93±2.23)points;FMA-LE:(22.07±2.64)points vs.(19.67±2.61)points;10MWT:(27.13±8.20)seconds vs.(30.73±10.95)seconds;The number of knee hyperextension measurements:(14.00±2.95)times vs.(17.40±3.91)times].Thirdly,according to the plantar pressure analysis of three groups,SI values and COP improved in both groups of stroke patients with hemiplegia compared to preadmission,and the test result of experimental group was better than that of the control group(P<0.05),but there was still a large difference with normal subjects(P<0.001)[SI:(0.55±0.02)vs.(0.57±0.02)vs.(0.49±0.03).COP:(198.87±33.14)mm~2 vs.(249.07±41.92)mm~2 vs.(56.80±22.78)mm~2].Conclusion:In patients with post-stroke knee hyperextension,body weight supported treadmill training combined with knee control training can effectively reduce the number of knee hyperextensions,enahnce walking balance and lower limb motor function,improve plantar pressure parameters,and prevent falls.