Normative hand grip strength and prediction models for Iranian office employees

Rostamzadeh, Sajjad; Saremi, Mahnaz; Tabatabaei, Shahnaz

doi:10.3233/wor-192858

Cited by 24 publications

(20 citation statements)

References 37 publications

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“…Consistent with the findings of several previous studies, the results of this study showed that hand strength in both hands were significantly greater in males than in females [2,5,[7][8][9][10][11][12][13]19,24,26,[36][37][38]. Female hand strength was between 59.1% and 73% of male hand strength for both hands.…”

Section: Discussionsupporting

confidence: 92%

“…The adjusted-R 2 of the models in Wang's study ranged from 0.32 to 0.44. The prediction models in other studies had greater explanatory power than those in the present study [4,6,8,11]. This was true not only for grip strength but also for pinch strength.…”

Section: Discussioncontrasting

confidence: 46%

“…Hand strength is an important reference used in the medical diagnosis of hand disorders and injuries to evaluate and compare treatments or predict mortality [1][2][3][4][5][6][7][8][9][10][11][12][13]; it is also used in the assessment of the risk of musculoskeletal disorders (MSDs) for the improvement of task processes and design with regard to the manual handling of materials and other manual operations [14][15][16][17]. Therefore, the establishment of hand strength databases is an important issue in many countries.…”

Section: Introductionmentioning

confidence: 99%

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Normative Hand Strength of Healthcare Industry Workers in Central Taiwan

Chao

2020

IJERPH

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Objectives: The purpose of this study is to establish the norms of hand grip strength in the healthcare industry in Taiwan and propose models to predict the strength of hand movement by regression with demographic and anthropometric factors. Methods: This is a cross-sectional study with a stratified convenience sample of workers in healthcare service industries in central Taiwan. Three hundred twenty-nine healthy subjects were recruited. Strength of different hand movement were tested three times in both hands and rests were given between tests. Results: Female strength of these hand movement was 59.1% to 73.0% that in males (p < 0.001). In general, the hand strength of male workers in the healthcare industry was less than that of male workers in the manufacturing industry (p < 0.001). In the prediction model, sex and weight played important roles in predicting hand strength. Conclusions: The norms of different types of hand strength was investigated the first time in workers in the healthcare industry in Taiwan. The tasks performed by healthcare personnel vary widely, and this variable should be considered in a future prediction model.

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Section: Discussionsupporting

confidence: 92%

Section: Discussioncontrasting

confidence: 46%

Section: Introductionmentioning

confidence: 99%

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Normative Hand Strength of Healthcare Industry Workers in Central Taiwan

Chao

2020

IJERPH

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“…The present study reaffirms that hand size can be an important factor influencing handgrip and pinch strengths of children and adolescents. This finding is in more consistent with the results of (26,62,63). Among the finger lengths that were measured, thumb length, index finger length, and middle finger length showed also strong correlations with all the three pinch outcomes of both sides.…”

Section: Relationship Between Hand-forearm Anthropometric and Handgrisupporting

confidence: 89%

“…Some studies have also shown that although height and weight are positively correlated with hand strengths in pubertal years, the influence of these variables is considerably smaller than that of either gender or age (20,24). Considering anthropometric dimensions, previous studies have found a strong correlation with handgrip and pinch strengths in adults (25)(26)(27), which was confirmed in children and adolescents in few studies (28). In addition, there are contradictory findings in the studies on the anthropometric variables affecting hand strengths (HGS and PS) in different age ranges (23,29,30).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Hand-Forearm Anthropometric Components in Assessing Handgrip and Pinch Strengths of School-Aged Children and Adolescents: A Partial Least Squares (PLS) Approach

Rostamzadeh

Saremi

Vosoughi

et al. 2020

Preprint

Self Cite

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Background The purpose of this study was to examine the influence of hand-forearm anthropometric dimensions on handgrip and pinch strengths among 7–18 years children and adolescents and to investigate the extent to which these variables can be used to predict hand strength.Methods Four types of hand strengths including handgrip, tip to tip, key, and three-jaw chuck pinches were measured in 2637 healthy children and adolescents (1391 boys and 1246 girls) aged 7–18 years using standard adjustable Jamar hydraulic hand dynamometer and pinch gauge. A set of 17 hand-forearm anthropometric dimensions were also measured with an accurate digital caliper and tape measure.Results No significant differences were found between the hand strengths of boys and girls up to the age of 10 years. Gender related differences in handgrip and pinches were observed from the age of 11 years onwards, with boys always being stronger. The dominant hand was stronger than the non-dominant hand (8% for handgrip and by about 10% for all three types of pinches). The strongest correlations were found between the hand length and hand strengths (r > 0.83 for handgrip and three all pinches; p < 0.001, 2-tailed). Based on the partial least squares (PLS) analysis, 8 out of 17 anthropometric indices including hand length, hand circumference, thumb length, index finger length, middle finger length, and forearm length had considerable loadings in the PLS analysis, which together accounted for 46% of the total variance.Conclusions These results may be used by health professionals in clinical settings as well as by designers to create ergonomic hand tools.

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Hand anthropometric dimensions and strengths in workers: A comparison of three occupations

Hajaghazadeh

Taghizadeh

Mohebbi

et al. 2022

Hum Ftrs & Erg Mfg Svc

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The purpose of this study was to measure and compare the hand anthropometric dimensions and strengths of three different occupations. A cross-sectional study was designed to measure 34 hand dimensions and 4 hand strengths of 558 participants consisted of office workers, vehicle mechanics, and farmers. A digital caliper, a hand dynamometer, and a pinch meter were used to collect data. Percentile values for each measurement were tabulated at the 5th, 50th, and 95th percentile levels. The analysis of variance, t test, and Cohen's d were performed to assess the differences in anthropometric variables between groups of workers. The findings demonstrated statistically significant differences in the mean size and strength of the hands across three occupations. Office workers' hands were significantly smaller than those of car mechanics and farmers, particularly in terms of hand depths and widths. Car mechanics' hand circumferences were bigger than those of farmers.Office workers produced the weakest hand strengths. Wrist breadth of workers showed the highest correlation with hand strengths. Compared to other studies, the hands of Iranian workers were wider and thicker, but the length of their hands was similar. Given the significant variances in hand anthropometry between occupational categories, these differences should be incorporated into the design and selection of hand-related products such as gloves and hand tools for each group of workers.

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Normative hand grip strength and prediction models for Iranian office employees

Cited by 24 publications

References 37 publications

Normative Hand Strength of Healthcare Industry Workers in Central Taiwan

Normative Hand Strength of Healthcare Industry Workers in Central Taiwan

Analysis of Hand-Forearm Anthropometric Components in Assessing Handgrip and Pinch Strengths of School-Aged Children and Adolescents: A Partial Least Squares (PLS) Approach

Hand anthropometric dimensions and strengths in workers: A comparison of three occupations

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