Skip to main content

Table 1 Frequency of muscle cramping in different body locations or muscle groups among those with cramping (n = 40), those with near cramping (n = 75), and those with either cramping or near cramping (n = 115)

From: Muscle Cramping During a 161-km Ultramarathon: Comparison of Characteristics of Those With and Without Cramping

Body location or muscle group

Combined cramping or near cramping (%)

Cramping (%)

Near cramping (%)

p value

Calf

53.9

57.5

52.0

0.69

Quadriceps

43.5

57.5

36.0

0.031

Hamstrings

33.0

45.0

26.7

0.061

Hip flexors

15.7

17.5

14.7

0.79

Trunk

6.1

10.0

4.0

0.23

Hip adductors

4.3

2.5

5.3

0.66

Ankle dorsiflexors

3.5

7.5

1.3

0.12

Forearm

2.6

7.5

0.0

0.040

Feet

2.6

5.0

1.3

0.28

Upper arm

1.7

2.5

1.3

1.00

Hands

0.9

2.5

0.0

0.35

  1. Values are expressed as percentages of those reporting they had experienced muscle cramping or near cramping. Since some runners had multiple areas with muscle cramping, the summation of percentages is greater than 100 %. The statistical comparison is between the cramping and near cramping groups for each body location or muscle group