Table 2 Results from Fatigue impact scale and proportion of subjects with a muscle function test value below 100% of healthy subjects along side with mean and standard deviation.

Physical function tests

Standing heel rise, below reference

13 (SD 6.5), 218/241 (90.5%)

Maximal hand grip strength, below reference

331 N (SD 129), 187/241 (77.5%)

Walking speed (self chosen), below reference

1.5 m/s (SD 0.25), 73/241 (30%)

Walking speed (maximal), below reference

2.1 m/s (SD 0.4), 113/241 (47%)

Timed up and go, above 10 seconds

8.7 s (SD 1.5), 41/241 (17%)

Physical activity level (0–6), high level (5–6)

3.3 (1.3), 36/241 (15%)

Fatigue impact scale score

Total

38.5 (36.5)

Physical

10 (10)

Cognitive

10 (9)

Psycho-social

18.5 (17.5)