Revised normative values for grip strength with the Jamar dynamometer

Martine J. H. Peters, Sonja I. van Nes, Els K. Vanhoutte, Mayienne Bakkers, Pieter A. van Doorn, Ingemar S. J. Merkies, Catharina G. Faber*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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The Jamar dynamometer has been widely used in various chronic illnesses and has demonstrated its strength as a potential prognostic indicator. Various stratified normative values have been published using different methodologies, leading to conflicting results. No study used statistical techniques considering the non-Gaussian distribution of the obtained grip strength (GS) values. Jamar GS was assessed in 720 healthy participants, subdivided into seven age decade groups consisting of at least 50 men and 50 women each. Normative values (median and fifth values) were calculated using quantile regressions with restricted cubic spline functions on age. Possible confounding personal factors (hand dominance, length, weight, hobby, and job categorization) were examined. Clinically applicable revised normative values for the Jamar dynamometer, stratified for age and gender, are presented. Hand dominance had no influence. Other personal factors only minimally influenced final values. This study provides revised normative GS values for the Jamar dynamometer.
Original languageEnglish
Pages (from-to)47-50
JournalJournal of the Peripheral Nervous System
Issue number1
Publication statusPublished - Mar 2011


  • grip strength
  • Jamar dynamometer
  • normative values

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