49 " ' (00 T4 50 2 9 | | 90 . 61 — 41.2 | PERCENT o EXPOSED ® UNEXPOSED a 80h , + — 32.5 T i COMBINED WITH STANDARD ERROR MEANS 1-00.68 ** . x2 49.42 -1, -1.98x+0.03 y? 249.42 2 e {11.83 { | — 9.67 SECONDS " PERCENT T oO EXPOSED @ UNEXPOSED 90 + a COMBINED WITH STANDARD ERROR MEANS | 620.7708 ** go ee 17 23-36 + 17Ox T VIBRATORY SCALE 100 -—— | 23 7 — 7.51 i 19 ol 20 #® CORRELATION WITH AGE r SIGNIFICANT AT {% LEVEL _ | 30 40 it 50 60 AGE 70 l Bo ol! Lis 90 20 1 rT a lo 3 = 20 T T°78 “ff EXPOSED @ UNEXPOSED 2 COMBINED WITH STANDARD o rT 7 59 60 AGE nn | 7 80 , : L_|es5 30 1 473 0 EXPOSED 10 ERROR MEAN r=0.43"* 8. 40 Po Figure 43. Reaction time (light extinction test), males. Figure 42. Vibratory sense in tibia, males. oy 30 | * * CORRELATION WITH AGE SIGNIFICANT AT 1% LEVEL @ UNEXPOSED o COMBINED WITH STANDARD | y?6,76+0.62 «x 20 2 ERROR ° — 57 PERCENT TALLIES PER MINUTE PERCENT y= 13.05 +0.80 x bo 2 kg PRESSURE P —— MEANS r=O.71** ~ 133 90+ 20 #* CORRELATION WITH AGE SIGNIFICANT AT i% LEVEL 30 40 50 60 AGE | 70 80 Figure +4. Neuromuscular function (hand tally test), males (1964). 90 BOL , | ** CORRELATION WITH AGE SIGNIFICANT AT 1% LEVEL | 90}— 4 | 1Oo0l 20 30 | 40 L 50 _l 60 AGE { 70 | i 80 Figure £5. Hand grip, males. L 30 3