From: The relationship between high physical activity and premenstrual syndrome in Japanese female college students
Total physical activity (MET-minutes/week)
 ≥ 3000 (n = 200)
 < 3000 (n = 181)
z
p-value
Physical symptoms
4.94
5.79
2.66
0.01
Psychological symptoms
3.21
3.99
2.47
PMS symptoms
8.16
9.78
2.88
 < 0.01