24 L 19 31 8 22 45 49 R 19 35 13 24 L

24 l 19 31 8 22 45 49 r 19 35 13 24 l

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24 L 25.1 4.0 .79 19 31 15.8 3.1 .55 8 22 45-49 R 25.8 3.9 .73 19 35 17.6 3.2 .65 13 24 L 24.8 4.4 .84 18 42 16.6 2.9 .58 12 24 50-54 R 26.7. 4.4 .88 20 34 16.7 2.5 .50 12 22 L 26.1 4.2 .84 20 37 16.1 2.7 .53 12 22 55-59 R 24.2 4.2 .92 18 34 15.7 2.5 .50 11 21 L 23.0 4.7 1.02 13 31 14.7 2.2 .44 12 19 60-64 R 23.2 5.4 1.13 14 37 15.5 2.7 .55 10 20 L 22.2 4.1 .84 16 33 14.1 2.5 .50 10 19 65--69 R 23.4 3.9 .75 17 32 15.0 2.6 .49 10 21 L 22.0 3.6 .70 17 28 14.3 2.8 .53 10 20 70-74 R 19.3 2.4 .47 16 25 14.5 2.9 .54 8 22 L 19.2 3.0 .59 13 28 13.8 3.0 .56 9 22 75+ R 20.5 4.6 .91 9 31 12.6 2.3 .45 8 17 L 19.1 3.0 .59 13 24 11.4 2.6 .50 7 16 All R 24.5 4.6 .26 9 41 16.2 3.0 .17 8 25 Subjects L 23.6 4.6 .26 11 42 15.3 3.1 .18 7 26 Males Females Age Hand Mean SD SE Low High Mean SD SE Low High 20-24 R 26.6 5.3 1.03 18 45 17.2 2.3 .45 14 23 L 25.7 5.8 1.08 15 42 16.3 2.8 .56 11 24 25-29 R 26.0 4.3 .84 19 35 17.7 3.2 .62 13 29 L 25.1 4.2 .82 19 36 17.0 3.0 .58 13 26 30-34 R 24.7 4.7 .91 16 34 19.3 5.0 .99 12 34 L 25.4 5.7 1.10 15 37 18.1 4.8 .94 12 32 35-39 R 26.2 4.1 .83 19 36 17.5 4.2 .85 13 29 L 25.9 5.4 1.17 14 40 17.1 3.4 .69 12 24 40-44 It 24.5 4.3 .85 17 37 17.0 3.1 .56 10 23 L 24.8 4.9 .96 15 37 16.6 3.5 .63 10 25 45-49 R 24.0 3.3 .63 19 33 17.9 3.0 .60 12 27 L 23.7 3.8 .71 18 33 17.5 2.8 .57 12 24 50-54 R 23.8 5.4 1.08 15 36 17.3 3.1 .63 12 23 L 24.0 5.8 1.16 16 36 16.4 2.9 .59 12 22 55-59 R 23.7 4.8 1.06 16 34 16.0 3.1 .63 11 26 L 21.3 4.5 .99 12 8 15.4 3.0 .61 11 21 60-64 R 21.8 3.3 .67 16 28 14.8 3.1 .61 10 20 L 21.2 3.2 .65 15 27 14.3 2.7 .54 10 20 65-69 R 21.4 3.0 .58 15 25 14.2 3.1 .59 8 20 L 21.2 4.1 .80 14 30 13.7 3.4 .64 8 22 70-74 R 18.1 3.4 .67 14 27 14.4 2.6 .48 9 19 L 18.8 3.3 .65 13 27 14.0 1.9 .35 10 17 75+ R 18.7 4.2 .84 9 26 12.0 2.6 .51 8 17 L 18.3 3.8 .77 10 26 11.5 2.6 .52 6 16 All R 23.4 5.0 .28 9 45 16.3 3.8 .21 8 34 subjects L 23.0 5.3 .30 10 42 15.7 3.6 .20 6 32
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DISCUSSION When the results of this study are compared to those of a similar study by Kellor's group, 7 several observations can be made. Grip strength (right and left hands) of males improved in 14/24 age groups while grip strength of women improved in 21/24 age groups. Overall the male scores are similar to those in Kellor's study but female scores have improved especially in the 20 to 54-year group. It might be speculated that the hand strength of women may have increased as a result of changing sex roles in our society. However, further investigation is needed to resolve this question. The scores for tip, key, and palmar pinch improved in this study at all M and F age groups when compared to Kellor's report. It may be speculated that both M and F pinch strength has increased since 1971; yet if this were true, a similar increase in grip strength would also be expected. Since this did not occur, Trombly's speculation 17 that the newer pinch gauge used in this study reads higher than the Osco pinch meter used in Kellor's study, appears to be supported. It is speculated that the improved M and F pinch strength scores of this study are more related to test instrument differences than to actual improved pinch strength scores. If this is true, therapists using the newer pinch gauge should not use Kellor's normative data to interpret test results. Previous studies 5.7.9.14 have established that there is a relationship between hand strength and age. This was confirmed in our present study, especially for grip strength. Kellor developed normative data based on a linear inverse relationship, that is maximal hand strength was achieved at 20 years and decreased with increasing age. The data from our study and others 1.2.4.5.9 would support a curvilinear relationship, with hand strength peaking somewhere between 25 and 50 years of age and decreasing thereafter. Therefore.
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  • Fall '14
  • Left-handedness, Hand strength, Palmar Pinch

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