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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)