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. 2006 Sep 1;40(11):906–911. doi: 10.1136/bjsm.2006.025783

Table 3 Results of force capacity testing for controls and racing drivers.

Test Mean SD 95% Confidence limits
Lower Upper
Leg extensor force (N)
 Concentric
  Controls 1561 161 1412 1709
  Drivers 1517 285 1253 1781
 Eccentric
  Controls 2072 477 1631 2513
  Drivers 2271 466 1840 2702
Arm strength (N.m)
 Concentric
  Controls 75 9 66 84
  Drivers 80 11 70 90
 Eccentric
  Controls 117 17 102 133
  Drivers 114 16 98 129
Arm endurance* (s)
 Controls 94 26 61 127
 Drivers 78 27 54 100

*Isometric, threshold of 30 N.m.