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ObjectiveTo evaluate the main structural and content features of four instruments for motor function and motor ability assessment and their psychometric properties for children and adolescents with disabilities, based on International Classification of Functioning, Disability and Health-Children and Youth Version (ICF-CY). MethodsPubMed, Medline and Web of Science databases were searched for literature on motor function and motor ability assessment for children and adolescents with disabilities published from establishment to May, 2023. The main structural and content characteristics of the tools were analyzed using ICF-CY, and the quality of measurement tools was assessed using COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN). ResultsNine papers were eventually included, and four assessment tools were identified, including Gross Motor Function Measure-88 (GMFM-88), Peabody Developmental Motor Scales second edition (PDMS-2), Bruininks-Oseretsky Test of Motor Proficiency second edition (BOT-2), and Movement Assessment Battery for Children second edition (MABC-2). The GMFM-88 consisted of 88 items in five dimensions: zone A (lying and rolling), zone B (sitting), zone C (crawling and kneeling), zone D (standing), and zone E (walking and running and jumping); it involved joint movement function (b710), random movement control function (b760), etc., in body function; and the change of basic body posture to maintain a body posture (d410) and maintain a body posture (d415) in activity and participation, with good to excellent levels of internal consistency reliability, test-retest reliability, content validity, and structural validity. The PDMS-2 consisted of six subtests, including reflexes, posture, movement, physical manipulation, grasping and visuomotor integration, with a total of 249 items; it involved memory function (b144) and joint mobility function (b710) in body function; as well as looking (d110) and imitation (d130) in activity and participation; with good psychometric properties in terms of internal consistency reliability, test-retest reliability, content validity, structural validity, and hypothesis testing and cross-cultural feasibility. There are two versions of BOT-2: long form and short form. The long form consisted of eight subtests with 53 items, involving joint mobility function (b710) and joint stability function (b715) in body function; as well as imitation (d130) and learned calculation (d150) in activity and participation; it achieved excellent levels of psychometric properties in terms of internal consistency reliability, content validity, and structural validity, and good level in reliability and test-retest reliability. MABC-2 consisted of two parts: an activity ability test and a checklist with 30 items; it involved joint mobility function (b710), joint stability function (b715), etc., in body function; as well as fine-hand use (d440), hand and arm use (d445) in activity and participation; with good psychometric properties such as reliability, content validity, and structural validity. ConclusionThis systematic review analyzed the main structural and content characteristics of four types of measurement tools for assessing motor function and motor ability in children and adolescents with disabilities based on the ICF-CY, and evaluated the quality of psychometric properties (internal consistency reliability, test-retest reliability, content validity, structural validity, and cross-cultural consistency, etc.) of the four types of measurement tools using the COSMIN criteria. For the structure and content, PDMS-2 appears the broadest content, and measures fine hand movements, dynamic and static balance, along with the BOT-2 and MABC-2. GMFM-88 focuses more on gross motor functions such as postural control. Four instruments show high internal consistency reliability, test-retest reliability, content validity and structural validity, while the BOT-2 and PDMS-2 show better reliability. To ensure the reliability and validity of the measures, rehabilitation workers and educators need to receive standardized training and qualification before using the standardized instruments for motor function and motor ability for children with disabilities. With norm-referenced measures, the results need to be converted to standard scores.
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ObjectiveTo analyze the occurrence of sport injury in Paralympic athletes during the Summer or Winter Paralympic Games, as well as the risk factors for sport injuries and possible interventions. MethodsThe literatures related to sport injuries of Paralympic athletes were searched in PubMed, Web of Science, EBSCO and CNKI from January, 2013 to July, 2022, and a scoping review of the retrieved literature was performed. ResultsFinally, eight English articles from China, Sweden, South Africa, Poland and the United States were included, involving 4 769 atheletes. They included one interview study, five survey studies, one retrospective study and one prospective cohort study, which were mainly from journals in the fields of sport medicine, adaptive sport and sport science, and the publication date was mainly from 2016 to 2022. The types of disability of Paralympic athletes mainly involved physical disability (upper and lower limb amputation, cerebral palsy, spinal cord injury, poliomyelitis, dysplasia and neuromuscular dystrophy, central nervous system injury, myelomeningocele, etc.), intellectual disability and visual disability. The incidence of sport injury was high in Paralympic athletes, and most of the injury occured during competitions. Acute injury, chronic overuse injury and chronic to acute injury were the three most common types of injury. Sports injuries mainly involved head and neck, upper limbs (shoulders, upper arms/forearms, elbows, wrists and fingers), trunk (abdomen, back and waist), and lower limbs (hips/groin, thighs, knees, calves, ankles and toes). Risk factors for sport injuries in Paralympic athletes mainly included previous injury history, illness, fatigue and decreased physical strength, spasticity and muscle weakness; emotional states of inattention or distraction, excessive anxiety or excitement; improper exercise training methods, lack of knowledge related to sport training and injury prevention, and motor skill deficiencies; weather, competition venues, sport facilities, use of equipment and assistive devices, age factors, etc. Injuries of Paralympic athletes could be prevented by providing rehabilitation services for Paralympic athletes, optimizing training design, conducting collective training for coaches and athletes on various types of injuries, conducting research related to sport injuries of disabled athletes, formulating prevention programs and strategies, improving the physical fitness and sport skills of Paralympic athletes, improving emergency treatment techniques for injuries, and strengthening coordination and governance structures between sport medicine and rehabilitation therapists. ConclusionThe incidence of sport injury is high in Paralympic athletes. Chronic overuse injury is the most common injury type, and the injuries most involve head, neck and upper extremities. The risk factors for sport injuries of Paralympic athletes mainly involve physical function, psychological, activities and participation, environment and other factors. The main intervention strategies include providing emergency treatment intervention and monitoring services, sport medicine treatment and rehabilitation, guidance and specialized support, and health education on sport injury prevention.
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ObjectiveTo investigate the injury risk of simplified 24-action Taiji Quan wild horse mane splitting practice at different postures with mechanical analysis. MethodsThe mechanical model of the action of Taiji Quan wild horse mane splitting was establishied, and then the coordinates, velocity, acceleration and horizontal angle of thigh and lower leg were determined by image analysis. The force arm of quadriceps femoris was detected by X-ray, and the quadriceps femoris tension, femoral tibial joint force and patellofemoral joint pressure of wild horse mane splitting practice with different postures were compared. ResultsCompared with the high posture, the coordination and velocity decreased, the average angle of knee joint decreased from 128° to 115° at the low posture; and the knee moment, the quadriceps femoris tension, femoral tibial joint force and patellofemoral joint pressure significantly increased (F > 37.187, P < 0.001). ConclusionWhen practicing Taiji Quan wild horse mane splitting, the risk of knee injury at the low posture is higher than that at high posture.
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Objective To exploer the function and underlying mechanism of Lunasin on sports articular cartilage injury.Methods Wistar rats were randomly divided into control group and model group;after injection molding for 3 times, the model rats were feed for 28 days.Then the model rats were divided into sham model group, 0.01, 0.05 and 0.1 mmol/L Lunasin treatment group respectively.After treatment, ELISA was used to analyze the production of IL-1β,IL-6,TNF-α,MMP-6 and MMP-8.SOD activity and iNOS were evaluated by their ELISA kit.Western blot was used to detect the expression of NRF2, Keap1, LC-3Ⅱ, Bax, Beclin1, p-AMPK, AMPK.Results Compared with control, the dose of IL-1β,IL-6,TNF-α,MMP-6 and MMP-8 in serum of model rats were significantly increased (P<0.05), however, after treatment with Lunasin for 1 month, these inflammatory factors were obviously reduced then that of model rats (P<0.05);Furthermore Lunasin treatment obvi-ously increased SOD activity,up-regulated NRF2 expression and down-regulated the generation of nitric oxide synthase (iNOS) (P<0.05);Additionally, Lunasin can raise the expression of autophagy-related protein(beclin1 and LC-3Ⅱ), reduce the expression of apoptosis protein (Bax) in damaged articular cartilage.ConclusionsLunasin benefits the repair of damaged joints by reducing the production of inflammatory mediators, activating of oxidative stress system and autophagy pathway.