New normative values for handgrip strength: results from the UK Biobank.

ABSTRACT

OBJECTIVES: To develop normative values for right and left handgrip strength after stratification for confounders like gender, age, and height. DESIGN: Cross-sectional, descriptive. SETTING: General population. PARTICIPANTS: A total of 502,713 people living in the United Kingdom. INTERVENTION None. MEASUREMENTS Handgrip strength was measured using a Jamar hydraulic hand dynamometer, which is considered to be an accurate instrument to measure handgrip strength. In addition, self-reported chronic conditions and ethnic background were registered, and lung function was assessed using spirometry. RESULTS: After exclusion of all individuals with missing data, a nonwhite ethnic background, the presence of 1 or more self-reported conditions, and/or an obstructive lung function (defined as FEV1/FVC <0.7), new normative values for right and left handgrip strength were derived from 224,830 and 224,852 individuals (54.2% women; age 55.0 [8.0] years; height 169.0 [9.2] cm; body mass index 26.9 [4.4] kg/m(2)) with a nonobstructed spirometry (FEV1 3.0 [0.8] L). Men were stronger than women. Moreover, significant associations were found between handgrip strength and height, and between handgrip strength and age. Finally, percentiles 5, 10, 25, 50, 75, 90, and 95 were calculated for right and left handgrip strength, after stratification for gender, age, and height. CONCLUSION: The UK Biobank dataset provided the opportunity to determine new normative values for handgrip strength in men and women aged 39 to 73 years. These normative values take into consideration age, height, and measurement side. Therefore, these new normative handgrip strength values are of broad clinical interest.