(1.School of Sport and Health,Guangzhou Sport University,Guangzhou 510500,China;2.The First Primary School of Xiaolan Jidong,Zhongshan 528415,China) Abstract: By openly recruiting 16 male old people aged 60-69, the authors randomly divided them into an experiment group and a control group, let the people in the experiment group do specific tennis exercise for 6 months, 3 times a week, 60-90 min/time, and controlled the exercise intensity to a heart rate in the range of 110-130 beats/min, while let the people in the control group maintain their original lifestyles, measured balance ability related indexes and processed them statistically before and after the experiment, and revealed the following findings: the “sitting and standing” test on the lower limb strength, the following static balance indexes: center of gravity swaying track length measured in an eyes closed and two feet standing condition, and center of gravity swaying track length, envelope area and axis X swinging speed measured in an eyes opened and one foot standing condition, and the following dynamic balance in-dexes: pace, gait cycle and step width, of the people in the experiment group, showed significant differences as com-pared with those of the people in the control group (P<0.05); after the experiment, these data of the people in the ex-periment group were significantly better than those of the people in the experiment group before the experiment (P<0.05 or P<0.01). The said findings indicate that the elderly doing normative tennis exercise can effectively enhance lower limb strength, improve static and dynamic balance abilities, and enhance the fall resistance ability. Key words: sports biomechanics;lower limb strength;static balance;dynamic balance;tennis;the elderly |