To ascertain the change of trunk muscle strength and lumbar curvature and cross sectional area of M. sacrospinalis in low back pain caused by military training, the indexes of trunk muscle strength (PT/BW, TAE, F/E) were measured in patients with low back pain and healthy subjects with CYBEX 6000 isokinetic testing system. The lumbar curvature was measured in lumbar X ray films on the lateral projection in standing position, and the cross sectional area of sacrospinalis was measured by ultrasonography. All of the indexes were compared between the two groups.The results showed PT/BW of flexors was not significantly different between the patients and healthy subjects, TAE of flexors in patients was lower than that of healthy subjects ( P

Objective: The demand of new rural cooperative medical system in Jiangsu province of the quantitative research is analyzed. Methods: To analyze cross-sectional data in 2011 statistical yearbook of Jiangsu province and China Statistical yearbook by using Extend Linear Expenditure System ( ELES) Model. Results: The farmers of Jiangsu for medical need a lower tendency and middle-income households below the expenditure on basic medical needs. In the premise of the farmers’ live, increase the income of medical and the demand will increase too. Conclusion:It needs to carry out effective propaganda work, improve the level of financing of the new rural cooperative medical system, implement the reform of the medical system.

Objective To investigate the relationship between general self-concept, social support and subjective well-being in Chinese older adults.Methods A total of 717 older adults completed the Gen-eral Self-Concept Scale ( GSCS) ,Social Support Rating Scale( SSRS) and Memorial University of Newfound-land Scale of Happiness(MUNSH).Results The self-concept score of the elderly was (2.91±0.41),social support score was (35.45±7.12) and subjective well-being score was (11.56±10.31).Social support was sig-nificantly positively related with self-concept and subjective well-being ( r=0.43,P<0.05;r=0.17,P<0.05) . Self-concept played a partly mediating role between social support and subjective well-being,and the confi-dence interval from Bootstrap output were 95％ (0.22,0.78).The mediating effect between social support and subjective well-being were suppressing effects( direct effects|-0. 31|, indirect effects |0. 50|>total effects|0.19|).Conclusion Social support can indirectly affect subjective well-being through self-concept.