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Table 2 Comparison of training characteristics and acute chronic workload ratio (ACWR) by registered distance

From: Recent Versus Old Previous Injury and Its Association with Running-Related Injuries During Competition by SeRUN® Running Profiles: a Cross-sectional Study

 

Total

10 km

21 km

42 km

 

n = 868

n = 283

n = 451

n = 134

Hours of running training (h/week)a

4

(3–6)

3

(2–4)

4

(3–6)

5.5

(4–7)

Frequency of running training

3

(3, 4)

3

(2, 3)

3

(3, 4)

4

(3–5)

Chronic volume (km/week)c

24

(15.3–38.5)

14.5

(9.8–21.3)

27.3

(19–37.3)

50.5

(37.5–63.8)

 Week 1

20

(12–37.5)

13

(8–20)

22

(15–37)

47

(34–65)

 Week 2

20

(10–36.5)

12

(6–20)

22

(12–36)

48.5

(30–63)

 Week 3

20

(10–35)

12

(7–20)

22

(15–35)

44

(21–60)

 Week 4

15

(9–25)

10

(6–17)

15

(10–25)

20

(10–30)

Acute volume (km/week)c

35

(25–51)

20

(16–27)

36

(31–46)

62

(52–72)

ACWR

1.4

(1.2–1.7)

1.5

(1.2–1.8)

1.4

(1.2–1.7)

1.3

(1.1–1.5)

ACWR category

 < 0.85

40

(4.6)

22

(7.8)

15

(3.3)

3

(2.2)

 0.85–1.35

344

(39.6)

91

(32.2)

178

(39.5)

75

(56)

 > 1.35

484

(55.8)

170

(60.1)

258

(57.2)

56

(41.8)

  1. aMedian (interquartile range); babsolute frequency (%). km kilometres, m metres
  2. cAcute volume is the sum of week 4 + race distance; chronic volume is the average of week 1, 2, 3 and acute volume