Table 1

Measures of anthropometrics, physical fitness and isometric strength in amyotrophic lateral sclerosis (ALS) cases and controls

Cases (n=85) (mean (SD))Controls* (n=2531) (mean (SD))OR95% CIp Value
Anthropometrics
 Weight (kg)66.3 (8.6)68.5 (10.8)0.980.96 to 1.000.06
 Height (cm)177.6 (6.0)178.5 (6.4)0.980.94 to 1.010.18
Physical fitness
 WMAX (W)246.7 (38.6)240.2 (36.5)1.011.00 to 1.010.09
 WMAX (W/kg)3.75 (0.55)3.55 (0.55)1.981.32 to 2.970.001
 Resting heart rate (bpm)77.0 (13.7)74.6 (12.9)1.021.00 to 1.030.09
Isometric strength
 Handgrip (N)595.7 (98.5)612.8 (98.8)1.001.00 to 1.000.10
 Handgrip (N/kg)9.0 (1.3)9.1 (1.5)0.980.85 to 1.140.84
 Elbow flexion (N)378.3 (87.2)378.5 (81.4)1.001.00 to 1.000.99
 Elbow flexion (N/kg)5.7 (1.2)5.6 (1.1)1.140.94 to 1.390.19
 Knee extension (N)542.6 (99.1)535.7 (108.9)1.001.00 to 1.000.57
 Knee extension (N/kg)8.2 (1.3)7.9 (1.5)1.151.00 to 1.330.05
  • OR expresses the risk of developing amyotrophic lateral sclerosis.

  • * Number of controls varied between 2504 and 2531.

  • Physical fitness from ergometer test.

  • Isometric muscle strength per kg body weight.

  • WMAX, maximum physical working capacity.