(1.School of physical Education，Yancheng Institute of Technology，Yancheng 224051，China； 2.School of Physical Education and Educational Science，Tianjin Unitversity of Sport，Tianjin 301617，China； 3.School of Sports Training Science，Tianjin Unitversity of Sport，Tianjin 301617，China)
Abstract: To analyze the relationship among college students' physical activity level, functional movement and physical quality performance, and to establish reference standards for healthy physical activity level and the suitable sitting time for college students. Adopting IPAQ-LF to survey, using FMS and physical quality test to measure 232 ordinary undergraduates’ physical activity level and the sitting time, and then carrying on the statistics of Kendall's tau_b correlation and ROC analysis. Results showed that: (1)there was a significant positive correlation between the level of physical activity and the performance of straight lunge, active straight leg lift, rotation stability and standing long jump (r values are 0.188、0.113、0.122 and 0.127, respectively, P < 0.05), and there was a significant negative correlation between physical activity level and 50-meter running performance, sitting time on weekdays and vital capacity, the sitting time on rest days and straight lunge (r values are -0.175, -0.220 and -0.158, respectively, P < 0.05). (2) The healthy level of physical activity is for ≥ 1 800 mets, the sitting time on working day is suitable for ≤ 200 mins/day, meditation time on rest day is suitable for ≤ 450 mins/day by using ROC curve. The conclusions indicated that three reference standards have great guidance value for college students' physical fitness activity.
Keywords: physical activity level；FMS；physical fitness；the sitting time；college students