Clinical Application of Portable Intelligent Multi Joint Isokinetic Training and Evaluation System Technology
Phase: NA
Conditions: Stroke, Hemiplegia, Rehabilitation; Tobacco Use, Physical Disability
Sponsor: Ran Shi

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Project Name: Clinical Application of Portable Intelligent Multi
Joint Isokinetic Training and Evaluation System
Technology
Project number：2021004
Sponsor:
Qianfoshan Hospital
Responsible Party: Principal Investigator
Investigator: Ran Shi
Official Title: doctor
Affiliation: Qianfoshan Hospital
Starting and ending years: January 2024 to December 2024
November 21, 2023

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1 Materials and Methods
1.1 General information
A total of 90 stroke hemiplegic rehabilitation patients who were
hospitalized in the Rehabilitation Department of Qianfoshan Hospital in
Shandong Province from January 2022 to January 2023 were selected,
meeting the diagnostic criteria for cerebral infarction and cerebral
hemorrhage in the 2007 edition of the Chinese Guidelines for the
Prevention and Treatment of Cerebrovascular Diseases, and confirmed by
cranial CT or MR examination; All of them are first-time onset, with a
course of ≤
1 month, and the lower limb of the hemiplegic side is
classified as stage III or above. All participants signed an informed
consent form. All patients have stable vital signs, stable condition,
cooperative examination, no severe cognitive, visual, hearing impairment,
no sensory aphasia, no orthopedic diseases, no lower limb muscle pain,
no history of congenital diseases or other brain diseases, no history of
organic or functional mental illness. Divide patients into a control group
and a treatment group using a random number table method. There are 30
cases in the control group, 30 cases in the intelligent isokinetic treatment
group, and 30 cases in the traditional isokinetic treatment group.
1.2 Method
Both the
control group
and the
two
treatment
groups received
conventional rehabilitation therapy such as exercise therapy (once a day,

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40 minutes a time, 5 times a week), occupational therapy (once a day, 30
minutes a time, 5 times a week), low-frequency electricity (once a day, 20
minutes a time, 5 times a week), acupuncture and moxibustion therapy
(once a day, 20 minutes a time, 5 times a week), which complied with the
recommendations on rehabilitation treatment in the 2017 edition of the
Guidelines for Early Rehabilitation Treatment of Stroke in China;
Intelligent isokinetic therapy adds isokinetic muscle strength training to
the lower limb flexion and extension muscles of hemiplegia in the above
treatments. The intelligent portable isokinetic tester of this project team
was used for isokinetic training of the affected knee flexor and extensor
muscles. The patient's seat backrest was adjusted to 85 °, and the waist
and shoulder cross straps were fixed. The proximal thighs of the test
subjects were fixed with nylon buckles, the lateral condyle of the femur
was the axis, and the length of the arm was 12 on the scale. The distal
ankle of the lower leg was fixed above the ankle. Before training, passive
joint movements were performed on the knee and ankle joints to avoid
joint damage, And conduct three low resistance warm-up exercises.
Choose 60 ° /s, 90 ° /s, and 120 ° /s angular velocity isokinetic
training based on the patient's specific situation. Train 10 times for each
angular velocity, with 15 seconds of rest between each cycle, and 2
minutes of rest between each cycle. Train for 4 cycles according to the
patient's tolerance, with an appropriate amount of training to cause

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moderate muscle fatigue and no fatigue on the second day (a total of 25
minutes per training session). Train each muscle group once a day, 5 days
a week, for a total of 3 weeks. The control group received 110 minutes of
daily training, while the observation group received 135 minutes of daily
training. Traditional isokinetic therapy has the same treatment parameters
as the intelligent isokinetic group in this project group.
1.3 Evaluation method
Before and after treatment, a dedicated person is assigned to assess
whether the patient is in the control group or treatment group, which is a
third-party blind assessment. Evaluate lower limb motor function using
the Fugl Meyer method (total lower limb motor score 34 points, total
balance score 14 points). Muscle strength, muscle tone examination,
motor function, and self-care ability scores. And record the peak torque
(PT) at an angular velocity of 60 °/s. The reason for choosing this angle
is because most of our subjects find it difficult to produce faster
movements. PT refers to the maximum torque output generated by muscle
contraction, representing the maximum muscle force generated by muscle
contraction, in N · m. In isokinetic muscle strength testing, the PT value
has high accuracy and repeatability, and is considered the golden
indicator of isokinetic muscle strength testing. It has high repeatability,
and the peak torque measurement of knee joint flexion and extension is
particularly stable. At the same time, a satisfaction questionnaire survey

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was conducted on the use of different isokinetic methods, quantifying the
characteristics of the two types of isokinetic methods based on the results:
the survey content includes patients' comfort, satisfaction, and treatment
effectiveness; Therapist: Conduct statistics on operability, learning curve,
economy, and other aspects.
2 Statistical analysis
SPSS 23.0
software
was used for data
statistical analysis. The
measurement data is represented by the mean ± standard deviation, the
inter group comparison is performed using one-way analysis of variance,
the pairwise comparison between groups is performed using LSD test, the
mean comparison between two samples is performed using t-test, and the
rate comparison of categorical data is performed using chi square test.
P<0.05 indicates a statistically significant difference.