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BACKGROUND:One-legged standing with eyes closed is a method to test the muscle strength and the ability of body balance, it is considered to be an important quality indicator for evaluation of adults and elderly balancing capability in our country. A lot of works have been done in many provinces and cities, but there is a lack of in-depth studies. OBJECTIVE:To review the research progress of one-legged standing with eyes closed, to analyze its problem used in the physical fitness test and to prospect the future direction of the related researches. METHODS:A computer-based search on CNKI database and Elsevier database was undertaken to identify the article of balance capacity. The key words were“eyes closed and single legged standing, balance ability, physical fitness test”. Total y articles were searched and checked primarily, and those meeting the criteria were looked up. RESULTS AND CONCLUSION:The standard of one-legged standing with eyes closed for the male is higher than that for the female. Some elderly just stand for a short time in the test, and thus it is difficult to distinguish the balance ability. Elderly balance is significantly lower than that in young people. The same test method for adults and elderly people is employed, but whether it is scientific or not should be further studied. Various indicators in the test of one-legged standing with eyes closed have low correlation. For the above reasons, further studies should be made before the test of one-legged standing with eyes closed becomes a valuable measurement of the balance ability in the national physique.
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BACKGROUND:As a bone scaffold material,β-tricalcium phosphate has good biocompatibility, osteoinductive, and biomechanical properties. OBJECTIVE:To study the effect of al ogeneic osteoblasts compounded withβ-tricalcium phosphate in repairing rabbit radial defects. METHODS:A total of 45 rabbit radial defect models were made and divided into three groups in random. Experimental group was repaired with the compound of al ogeneic osteoblasts andβ-tricalcium phosphate; control group withβ-tricalcium phosphate;and blank control group with nothing. The new bone formation of each group was observed and assessed by X-ray and histopathological analysis at weeks 4, 8, 16 after implantation for evaluation of the bone repairing effect. RESULTS AND CONCLUSION:With the repair time, the experimental group appeared to complete bone defect repair gradual y. By the end of 16 weeks, the X-ray showed that the bone cal us between the scaffold and the host was completely ossified, and bone defects were completely repaired in the experimental group. Histopathological observation showed continuous cortical bone formed in the defect area, and canal recanalization realized in the experimental group. Additional y, the repair effect in the experimental group was better than that in the control and blank control group at different time points (P<0.01). It is suggested that the al ogenic osteoblasts/β-tricalcium phosphate compound has the better effects on guiding bone regeneration and preventing from nonunion.
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10.3969/j.issn.2095-4344.2013.24.026