The Characteristics Of Trunk Of Judo Athletes With Chronic Non-specific Low Back Pain

Objective: To compare the characteristics of judo athletes with chronic non-specific lower back pain in terms of joint mobility,muscle endurance and muscle activation related to the core region,thus helping to identify risk factors for judo athletes with chronic non-specific lower back pain and helping to guide training and rehabilitation practices.Methods: Forty judo athletes were included in this study and divided into a low back pain group(n=20)and a control group(n=20),which met the inclusion and exclusion criteria.The athletes in the two groups were also analyzed for pain,dysfunction,core muscle endurance,joint mobility in the core region and core muscle activation.Results: This study found that there were significant differences in pain degree,pain time,Oswestry disability index and fear avoidance belief questionnaire between the two groups.However,the two groups of athletes in the core muscle endurance spinal flexion(P = 0.92),spinal extension(P = 0.82)and spinal lateral flexor group(P > 0.05),joint range of motion hip joint rotation(P > 0.05),hip joint rotation(P > 0.05),hip joint extension(P > 0.05),spinal flexion(P > 0.05)and spinal extension(P > 0.05)and part of the muscle activation of rectus abdominis(P = 0.37),hip flexion(P > 0.05)and spinal extension(P > 0.05)28),longissimus(P = 0.91)and iliac Costus(P = 0.08).However,the activation of multifidus(P = 0.04)in judo athletes with chronic nonspecific low back pain was significantly higher than that in healthy controls.Conclusion: Chronic non-specific low back pain judo athletes did not have lower joint mobility and muscle endurance than healthy judo athletes.However,chronic non-specific low back pain judoka had higher activation of the multifidus muscle than healthy judoka.Therefore,the prevention and rehabilitation of chronic nonspecific low back pain in judo athletes should target core muscle activation rather than joint mobility and muscular endurance.