Skip to main content

Table 2 Characteristics of men with low and high physical fitness (cut-off at median=32) among men without history of low back pain/injury

From: Physical fitness as a predictor of herniated lumbar disc disease – a 33-year follow-up in the Copenhagen male study

  Level of physical fitness
  Up to median Above median pa
  VO2MAX range: 15-32 VO2MAX range: 33-78  
  n=2055 n=1778  
Physical fitness    
 VO2MAX (mlO2/kg/min) 27.5 (3.5) 38.8 (5.4) -
Strenuous work, %    
 Seldom/never 62.4 61.3  
 Occasionally 31.0 32.2 0.72
 Often 6.6 6.5  
Height, %    
 - 171 cm 33.5 33.6  
 172-177 cm 35.8 35.0 0.83
 178 + cm 30.7 31.4  
Height, mean (SD) 174.3 (6.5) 174.3 (6.5) 0.87
Weight, %    
- 72 kg 30.3 49.5  
 73-80 kg 30.7 30.7 <0.001
 81 + kg 39.0 19.9  
Weight, mean (SD) 79.2 (10.4) 74.1 (9.1) <0.001
Age, years 49.8 (5.4) 47.4 (5.1) <0.001
  1. Included in the table are only factors significantly associated with HLDD risk in Table 1. Values presented are mean (SD) or frequency in per cent. Significant associations (p < 0.05) are highlighted (bold). a: p-values of unpaired t test or Chi-square test (likelihood ratio) where appropriate.