Key Pinch in Healthy Adults: Normative Values

Intra-individual and inter-individual variations of key pinch strength were analysed in a standardised manner for healthy Caucasian adults (female n = 403; male n = 366) aged between 20 and 95 years. The mean strength was less in women (right 6.6 kg; left 6.1 kg) than in men (right 10.4 kg; left 9.7...

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Bibliographic Details
Published in:The Journal of hand surgery, European volume European volume, 2008-04, Vol.33 (2), p.144-148
Main Authors: GÜNTHER, C. M., BÜRGER, A., RICKERT, M., SCHULZ, C. U.
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Biological and medical sciences
Diseases of the osteoarticular system
European Continental Ancestry Group
Female
Hand Strength
Humans
Male
Medical sciences
Middle Aged
Reference Values
Traumas. Diseases due to physical agents
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Summary:Intra-individual and inter-individual variations of key pinch strength were analysed in a standardised manner for healthy Caucasian adults (female n = 403; male n = 366) aged between 20 and 95 years. The mean strength was less in women (right 6.6 kg; left 6.1 kg) than in men (right 10.4 kg; left 9.7 kg). Independently of hand dominance or gender, the right side was about 7% stronger. Constitutional variables such as forearm length, forearm circumference and hand size showed a positive correlation with key pinch strength. Since the correlation between age and key pinch was similar in both genders, showing a continuous decrease of strength from the fifth decade of life on, key pinch seems independent from gender-specific hormonal changes. In conclusion, we recommend to side adjust measured values and to include information regarding constitutional characteristics for intra-individual comparison.
ISSN:1753-1934
2043-6289
DOI:10.1177/1753193408087031