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The normal grip strength was determined with the Martin Vigorimeter in 450 men and women aged 21--65 years. The grip strength decreased steadily with increasing age. Men were stronger than women and in both sexes the dominant hand was the strongest. The ratio dominant/non-dominant hand varied only slightly with age and sex and it could thus be a useful parameter in evaluation of grip strength under pathological conditions.
Thorngren et al. (Mon,) studied this question.