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Objective@#To investigate the effect of cervical eccentric training on neck function of college students, and to provide basis for cervical spondylosis prevention.@*Methods@#Fifty two students from a medical college in Shanxi Province were recruited. Participants were divided into the neck eccentric training intervention group and the control group according to the random number table method, after stratified by sex. The intervention group received training for 25 min each time, 3 times a week for 6 weeks, and the control group received neck health education. Neck circumference, strength, range of motion, endurance and head and neck posture were measured before and after intervention.@*Results@#The interaction of strength anterior flexion, extension left fiexion and right flexion was significant( F=34.25, 55.96, 56.49, 37.13, P <0.05). After 6 weeks, the strength of the intervention group was anterior flexion(65.37±18.64)N, extension(87.61±21.38)N, left flexion(55.80±12.04)N, right flexion(55.87±11.83)N. After 6 weeks, the strength of the control group were (45.69±9.25), (53.34±9.45), (41.60±6.96) and(42.20±9.92)N, which were significantly lower compared to the intervention group( t =4.82, 7.48, 5.21, 4.52, P <0.01). The interaction of motion of anterior flexion, extension, left flexion and right flexion were significant( F=11.62, 8.83, 8.29, 6.57, P <0.05). After 6 weeks, the motion of intervention group had anterior flexion(53.54±7.28)°, extension(57.42±7.37)°, left flexion(40.77±4.14)°, right flexion(85.12± 6.35 )°. The corresponding motion levels of the control group were(45.35±9.55)°,(50.85±7.56)°,(37.19±5.86)°,(76.15±7.86)°. The intervention group was significantly higher than the control group( t=3.48, 3.18, 2.54, 4.52, P <0.05). Main effects on time were observed in neck circumference, right flexion and left rotation motion, neck endurance and head extension angle( F =15.79, 13.94, 35.90, 10.17, 8.61, P <0.05).@*Conclusion@#Six week neck eccentric training can significantly improve neck strength and range of motion, as well as neck circumference, neck endurance and head forward posture.
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<p><b>OBJECTIVE</b>To evaluate the clinical significance of AFP-L3 in patients with hepatocellular carcinoma.</p><p><b>METHODS</b>Serum AFP-L3 variants were separated by micro centrifugal column, and detected by chemiluminescence.</p><p><b>RESULTS</b>AFP and AFP-L3 levels were higher in patients with hepatocellular carcinoma than those in patients with chronic hepatitis (P<0.001); as a diagnostic target, the sensitivity and specificity of AFP-L3 were 72.3 percent and 97.2 percent, respectively. Eight patients with hepatitis have higher AFP-L3, but none of them were found with carcinoma by CT three months later.</p><p><b>CONCLUSION</b>AFP-L3 is very useful in the diagnosis of patients with hepatocellular carcinoma.</p>