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Related Experiment Video

Updated: May 11, 2026

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
07:24

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

Published on: April 21, 2017

Tri-axial accelerometer analysis techniques for evaluating functional use of the extremities.

Wendy J Hurd1, Melissa M Morrow, Kenton R Kaufman

  • 1Department of Orthopedic Surgery, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55902, USA. hurd.wendy@mayo.edu

Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology
|May 7, 2013
PubMed
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Activity monitors offer objective patient function data. Different analyses reveal unique insights, particularly in comparing dominant and non-dominant limbs and activity intensity distribution in shoulder arthroplasty patients.

Area of Science:

  • Biomedical Engineering
  • Orthopedics
  • Rehabilitation Science

Background:

  • Activity monitors provide objective measures of patient function.
  • Understanding the unique information from different analytical methods is crucial for clinical application.
  • Shoulder arthroplasty patients exhibit altered functional patterns compared to controls.

Purpose of the Study:

  • To compare objective functional data obtained from different analytical methods using activity monitors.
  • To investigate similarities and unique information yielded by various analyses in shoulder arthroplasty patients.
  • To evaluate the time distribution of activity intensity as a novel metric.

Main Methods:

  • Tri-axial accelerometer activity monitors were worn bilaterally on the upper (biceps) and lower (wrist) arm for 3 days.

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Home-Based Monitor for Gait and Activity Analysis
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Home-Based Monitor for Gait and Activity Analysis

Published on: August 8, 2019

Capturing Representative Hand Use at Home Using Egocentric Video in Individuals with Upper Limb Impairment
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Capturing Representative Hand Use at Home Using Egocentric Video in Individuals with Upper Limb Impairment

Published on: December 23, 2020

Related Experiment Videos

Last Updated: May 11, 2026

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
07:24

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

Published on: April 21, 2017

Home-Based Monitor for Gait and Activity Analysis
07:24

Home-Based Monitor for Gait and Activity Analysis

Published on: August 8, 2019

Capturing Representative Hand Use at Home Using Egocentric Video in Individuals with Upper Limb Impairment
06:25

Capturing Representative Hand Use at Home Using Egocentric Video in Individuals with Upper Limb Impairment

Published on: December 23, 2020

  • Fifteen patients undergoing shoulder arthroplasty and fifteen matched controls participated.
  • Analyses included measures of central tendency, variance, sample entropy, asymmetry, and time distribution of activity intensity.

    • Main Results:

    • Significant differences in central tendency and variance were observed between dominant and non-dominant limbs in both groups for both arms.
    • Differences in entropy were found in the lower arm for both groups and the upper arm for patients.
    • Between-group differences were noted in asymmetry index, maximum activity level of the lower arm, and time distribution of activity intensity in the upper arm.

    Conclusions:

    • Multiple analysis methods applied to activity monitor data yield unique and complementary information.
    • Novel approaches, such as evaluating time distribution of activity intensity, provide valuable insights into patient function.
    • These findings support the use of diverse analytical techniques for comprehensive functional assessment in orthopedic populations.