往返跑

身体素质指标，包括握力、坐位体前屈、闭眼单腿站立、选择反应时、简单反应时、背力、纵跳、10m×4往返跑、俯卧撑（男）/仰卧起坐（女）等。

Indexes of body constitution , including grasp force , bend-ahead in sitting , stand up on one leg with eyes closed , choice reaction time simple reaction time , back strength , 10 m × 4 shuttle run , and pushup ( male ) / sit-up ( female ) etc.

柔韧性和耐力素质指标坐位体前屈、50×8往返跑，实验后比实验前具体有显著性提高。

Flexibility and endurance of the quality indicators Sit-Reach , 50x 8 shuttle run after the experiment specific than before the experiment significantly increased .

通过相关性检验和配对t检验对模型的预测效果进行比较，发现12min跑与20m往返跑的预测效果均较好。

The effection about the model predictions were compared by the correlation test and paired t-test .

10m×4往返跑时间城市体力和非体力劳动者均较农民短（P<0.01）；

Time of 10 m × 4 return run in manual workers and non-manual workers in city was shorter than that in farmers ( P < 0.01 ) .

20m节奏往返跑，既可有效测量人体的耐力水平，又有一定的健身价值，比较适宜。

20-meter rhythmic back and forth run not only can effective measure human body 's endurance level , but also has certain value for keeping fit , thus it is a suitable choice .

并收集记名测试者的体育测试成绩，包括立定跳远、1500m长跑和50m×8往返跑。

The results of physical exercise test of the subjects with record of name were collected , including standing long-jump , 1500 m long-distance running and 50 m × 8 come-and-go running .

城市体力和非体力劳动者坐位体前屈、背力、纵跳、10m×4往返跑、仰卧起坐和选择反应时均优于农民（P<0.05或0.01）。

Anteflexion of body when sitting , back pressure , vertical jump , 10 m × 4 return run , sit-up and choice of reaction time in manual workers and non - manual workers in city were better than that in farmers ( P < 0.05 or 0.01 ) .

他住在离城很远的地方，三个学期来每天往返地跑，他不当一回事。

He lived a long way out of the city and thought nothing of making the daily journey , there and back , throughout the three terms .