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Table 6 Results of quadriceps strength measurement

From: Hand grip strength and fatigability: correlation with clinical parameters and diagnostic suitability in ME/CFS

Max. quadriceps strength [Newton]

 

HC, n = 8

ME/CFS, n = 8

 

QS initial (Fmax1)

333 (82)

264 (108)

 

5 min (Fmax2)

324 (46)

237 (88)

 

10 min (Fmax3)

333 (50)

246 (88)

 

15 min (Fmax4)

334 (39)

212 (85)

 

20 min (Fmax5)

342 (40)

212 (90)

 

Fmax5 in % of Fmax1

106.4 (21.8)

76.1 (13.0)

p = 0.0045

Fmean

330 (46)

223.5 (88)

p = 0.013

Fatigue Ratio

1.12 (0.058)

1.23 (0.110)

p = 0.1171

  1. Mean value of quadriceps strength with standard deviation in brackets; p-value refers to comparison with healthy controls (t-Test)