A study on the effects of modified sprint interval trainingon physical fitness test scores and the quantitative and dose-response relationships among Chinese male university students.

Sit-and-reach (12.9 ± 6.8 to 15.8 ± 6.2, an increase of 22.5% p = 0.091, ES = 0.451 [small]), 50-m run (7.8 ± 0.8 to 7.5 ± 0.7, a decrease of 3.8% p = 0.169, ES = −0.366 [small]), and standing long jump (226.2 ± 21.9 to 234.9 ± 21.7, an increase of 3.8% p = 0.138, ES = 0.395 [small]) did not reach statistical significance, but showed a small effect size improvement.

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