Reference data for the hand grip and palmar pinch force sense errors and the relationship between school-entry-age in young adults.

Background: Hands execute intricate tasks vital for everyday life and professions such as cooking, tailoring, and craftsmanship.

Objective: This study aimed to establish reference data for hand grip and palmar pinch force sense in young adults, accounting for gender differences, and to determine the correlation between these data and school-entry ages.

Methods: The cross-sectional observational study comprised 284 participants (156 females and 128 males). Demographic details, including age, gender, weight, and height, were recorded. Participant ages ranged from 18 to 29, representing the youth workforce population as defined by the International Labour Organization. Factors like hand dominance and school-entry age were ascertained based on participants' self-reports. Hand grip and palmar pinch force senses were separately assessed in the dominant and non-dominant hands of 130 randomly chosen participants to evaluate test-retest reliability.

Results: Hand grip (dominant: p < 0.001, non-dominant: p = 0.002) and palmar pinch force sense errors were significantly lower in male participants compared to females. Palmar pinch force sense error for the dominant hand was reduced in males (p = 0.002), but no significant disparity existed between genders for the non-dominant hand (p = 0.222). Healthy adults who began school at age five or earlier exhibited a decreased force sense error rate (p < 0.05).

Conclusions: Force sense error reference values vary based on gender and school-entry age. This reference data will aid rehabilitation specialists working with young adults in physiotherapy and occupational therapy fields in identifying potential impairments.