| Objective:To explore the relationship between grip strength and stride speed and bone mineral density(BMD)in elderly men.Methods:A total of 180 elderly male patients aged 70-90 years who were inpatient at the Geriatrics Center of Xinjiang Uygur Autonomous Region People’s Hospital from December 2018 to August 2019 were selected.All patients voluntarily underwent bone density testing,grip strength measurement,Speed determination.Record the general condition of the patient,and use a dual-energy X-ray absorption detector(Lunar-rodigy,GE USA)to measure the bone density(g/cm~2)of the lumbar spine and femoral neck of the study subjects,and measure the 6-meter pace(m/s),grip strength meter(Jamar grip strength meter,unit of measurement is kg)to measure the maximum grip strength of both hands.All people were divided into normal bone mass group,osteopenia,osteoporosis group,and severe osteoporosis group(four groups A,B,C,and D)according to the BMD value,and were divided into groups>25kg and The≤25kg group(E,F group)is divided into groups>0.8m/s and≤0.8m/s group(G,H group)according to the pace.Data processing was performed using SPSS l9.0 software.When the data conforms to the normal distribution,the mean±standard deviation is used,and the difference between multiple groups in the data is compared using single factor analysis of variance.The difference between the two sets of quantitative data was compared by t test.Correlation analysis between data.Pearson correlation analysis was used.P<0.05 was statistically significant.Results:1)The univariate analysis of variance was used to compare the differences in grip strength and stride speed between different BMD groups.It was found that the grip strength of the elderly in the A,B,C,and D groups was 33.13±5.68 kg,27.65±5.59 kg,26.91+6.65kg,23.21±6.42 kg,(P<0.001).The difference is statistically significant;the elderly’s stride rate in groups A,B,C,and D is 1.01±0.31m/s,0.92±0.31m/s,0.62±0.18m/s,0.56±0.16m/s,(P<0.001).The difference is statistically significant;2)The t-test was used to analyze the differences in grip strength and pace between normal bone mass group and abnormal bone mass group.The results showed the significant difference in grip strength and stride speed between normal bone mass group and abnormal bone mass group(P<0.001);3)Pearson correlation analysis was used to study the correlation between grip strength and stride speed and BMD in elderly men in groups B,C and D.The results showed there was a correlation between grip strength and BMD of the lumbar spine and femoral neck in elderly men of group B(r=0.326,P<0.001;r=0.312,P<0.001),and grip strength was correlated with lumbar spine and femoral neck BMD in elderly men of group C(r=0.672,P<0.001;r=0.642,P<0.05),there was a correlation between grip strength and BMD of lumbar spine and femoral neck in elderly men of group D(r=0.897,P<0.001;r=0.803,P<0.001);The results showed that there was a correlation between stride rate and lumbar spine and femoral neck BMD in elderly men in group B(r=0.280,P<0.001;r=0.257,P<0.05).There was a correlation between stride rate and lumbar spine and femoral neck BMD in elderly men in group C(r=0.361,P<0.001;r=0.353,P<0.001);and there was a correlation between stride rate and BMD of lumbar spine and femoral neck in elderly men in group D(r=0.420,P<0.001;r=0.417,P<0.001);4)The t-test was used to analyze the differences between BMD of lumbar spine and femoral neck grouped and different grip strength group and stride rate group.The results showed that there was significant difference in lumbar spine and femoral neck BMD in group E and F group(P<0.001),there was significant difference in BMD of lumbar spine and femoral neck in G and H group(P<0.001).Conclusion:There is a correlation between grip strength,stride rate and BMD in elderly men.Early measurement of BMD in the elderly man with decreased grip strength and stride rate can prevent and delay the occurrence of osteoporosis.And then reduce the resulting fall causing disability and fatal events. |
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