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Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
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Upper limb strength: study providing normative data for a clinical handheld dynamometer.

Wanda Van Harlinger1, Lori Blalock2, John L Merritt3

  • 1James A. Haley VA Hospital, Tampa, FL(∗).

PM & R : the Journal of Injury, Function, and Rehabilitation
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Summary

This study establishes normative clinical data for upper extremity strength in adults aged 20-64 using the Nicholas Manual Muscle Tester (NMMT). Men demonstrate greater strength than women, and dominant limbs are stronger in both genders.

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Area of Science:

  • Clinical Biomechanics
  • Human Physiology
  • Rehabilitation Science

Background:

  • Establishing normative data for upper extremity strength is crucial for clinical assessment.
  • Existing data may not adequately represent diverse populations or utilize standardized portable devices.
  • The Nicholas Manual Muscle Tester (NMMT) offers a portable solution for objective strength measurement.

Purpose of the Study:

  • To establish normative clinical data for upper extremity strength in men and women aged 20-64 years.
  • To utilize a portable device, the Nicholas Manual Muscle Tester (NMMT), for data collection.
  • To provide a foundational database for clinical care and research.

Main Methods:

  • A cross-sectional study involving 180 healthy volunteers (90 men, 90 women) aged 20-64.
  • Objective upper extremity strength data collected using the Nicholas Manual Muscle Tester (NMMT).
  • Eleven upper extremity muscle groups tested using standardized methodology in outpatient and community settings.

Main Results:

  • Normative data presented with means ± standard deviations for upper extremity muscle groups.
  • Significant differences in strength observed between men and women, with men exhibiting higher strength.
  • Dominant limbs were found to be stronger than non-dominant limbs in both genders.

Conclusions:

  • The study provides an initial normative database for upper extremity strength across a wide age range in men and women.
  • These data are essential for monitoring clinical care and guiding research for patients with injuries or impairments.
  • This work represents a critical first step towards comprehensive normative databases using the NMMT for objective strength measurements.