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Related Experiment Videos

Normal pinch strength.

H Brorson1, C O Werner, K G Thorngren

  • 1Department of Orthopedics Lund University Hospital, Sweden.

Acta Orthopaedica Scandinavica
|February 1, 1989
PubMed
Summary

Pinch strength in adults declines with age. The dominant hand typically shows greater pinch strength than the non-dominant hand, a ratio useful for assessing conditions affecting grip.

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Area of Science:

  • Orthopedics
  • Human Physiology
  • Gerontology

Background:

  • Pinch strength is a crucial functional measure.
  • Age-related changes in muscle strength are well-documented.
  • Establishing normative data is essential for clinical assessment.

Purpose of the Study:

  • To determine normal pinch strength values in adults.
  • To investigate the relationship between age and pinch strength.
  • To establish the dominant to non-dominant hand strength ratio.

Main Methods:

  • Utilized the Mannerfelt-Ulrich intrinsic meter for measurement.
  • Recruited 90 healthy men and women.
  • Participants ranged in age from 21 to 65 years.

Main Results:

  • Pinch strength demonstrated a negative correlation with increasing age.
  • The mean ratio of dominant to non-dominant hand pinch strength was 1.12 (SD 0.13).
  • This ratio was consistent across both genders.

Conclusions:

  • Age is a significant factor influencing pinch strength.
  • The established dominant/non-dominant hand ratio provides a valuable reference.
  • This ratio can aid in the evaluation of pathological conditions affecting pinch strength.

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