| （1.School of Physical Education，South China Normal University，Guangzhou 510006，China；2.Department of Police and Physical Education，Guangdong Police College，Guangzhou 510230，China) Abstract: The authors tested the results of standing long jump performed by 30 testees in normal and toe-out landing postures, their walking pace angles as well as ankle joint adduction and abduction isokinetic muscle strength, probed into the effect of landing in a toe-out posture on the result of standing long jump, and revealed the following findings: as compared with landing in a normal posture, the effect of adopting landing in a toe-out posture for standing long jump on body stability after landing was not significantly different; the results of standing long jump by adopting these two landing postures were not significantly different; when landing in a toe-out posture was adopted, 50% of the testees (8 males and 7 females) had a worse result, the decrement was 0.05 m, while 33.3% of the testees (4 males and 6 females) had a better result, the increment was 0.07 m, the differences in the percentage, increment and decrement were not sig-nificant; the increment or decrement of the result of standing long jump by adopting landing in a toe-out posture had a medium degree of correlation with the pace angle, maximum extent of quick and slow ankle joint abduction (P<0.05). The said findings indicated the followings: as compared with landing in a normal posture, the increasing or decreasing of the result of standing long jump by adopting landing in a toe-out posture varied with the testees, having a medium degree of correlation with the pace angle, maximum extent of quick and slow ankle joint abduction; the smaller the pace angle and the greater the maximum extent of ankle joint abduction, the greater the chance to enhance the result of standing long jump by adopting landing in a toe-out posture.
Key words: sports biomechanics；standing long jump；landing posture；pace angle；isokinetic muscle strength
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