Table 4

Baseline characteristics of the TEFR study population

all subjects

MR group 1

MR group 2

number (%)

number (%)

number (%)


total

44

22 (50.0)

22 (50)

men

40 (90.9)

20 (90.9)

20 (90.9)

women

4 (9.1)

2 (9.1)

2 (9.1)

Finisher (F)

30 (68.2)

19 (86.4)

11 (50.0)

Non-finisher (NF)

14 (31.8)

3 (13.6)

11 (50.0)

mean/median (SD)

mean/median (SD)

mean/median (SD)

age (years)

49.7 (10.5)

50.3 (9.6)

49.1 (11.5)

prerace history:

years of regular endurance running

17.9 (7.5)

19.1 (7.5)

17.1 (7.4)

finished marathons

91.7 (168.6)

62.0 (93.4)

121.47 (218.8)

finished ultra-marathons

85.4 (63.6)

81.1 (59.0)

89.8 (69.0)

finished multistage ultra-marathons

5.7 (3.6)

5.1 (4.1)

6.3 (2.9)

anthropometry:

height (cm)

175 (8)

175 (6)

174 (9)

BMI (kg/m2)

23.1 (2.2)

22.8 (1.8)

23.4 (2.6)

body fat percentage, BIA (%)

11.2 (4.3)

11.0 (4.1)

11.4 (4.5)

body fat percentage, calculateda (%)

16.6 (4.2)

15.5 (3.2)

16.6 (5.0)

body fat percentage, MRI (%)

-

-

22.7 (6.0)

muscle percentage, calculatedb (%)

49.8 (5.1)

49.7 (4.7)

50.0 (5.7)

somatic lean tissue, MRI (%)

-

-

65.0 (5.3)

active range of hip motion (°)

flexion, 121 (26)c

123 (27)

122 (26)

124 (27)

extension, 19 (16)c

24 (17)

25 (17)

21 (16)

abduction, 42 (22)c

43 (23)

43 (22)

42 (24)

internal rotation, 31 (16)c

31 (16)

30 (16)

32 (16)

external rotation, 32 (18)c

34 (19)

33 (18)

34 (19)

active range of knee motion (°):

flexion, 132 (20)c

134 (19)

135 (20)

133 (19)

lower limb alignment:

-

-

LL difference [mm], 6 (95th: 11)d

2 (3.3), 95th: 9)

FTR, 1.26 (0.05)d

1.17 (0.04)

FTA [°], m: 178 (174-182)e

178 (175-182)

w: 181 (177-185)e

FTA difference

1 (0.8)

MAD (mm), 10 (4-16)e

10 (4-17)


acalculated by the updated DC (DEXA criterion)-equation according to Ball et al. [142], inputs: age, 7SF (chest, midaxillary, triceps, subscapular, abdomen, suprailiac, thigh); bcalculated estimation of skeletal muscle mass according to Lee et al. [143], inputs: gender, age, race, height, 3 SF and CF (upper arm, thigh, calf); cnormal AROM-values of hip and knee joints (goniometric data) according to the 1st National Health and Nutrition Examination Survey (NHANES I) [144]; dnormal values of side differences in the lower limb [119], generated with computed tomography gold standard method [117]. FTR: femoro-tibial length-ratio. Leg length (LL) differences of > 14 mm (3SD) are seen as pathological [122,119,118]; enormal values of femorotibial angle (FTA) and mean axis distance (MAD) [116,120,121]

Schütz et al. BMC Medicine 2012 10:78   doi:10.1186/1741-7015-10-78

Open Data