Quantitative measures of sagittal plane head-neck control: A test-retest reliability study

John M. Popovich, N. Peter Reeves, M. Cody Priess, Jacek Cholewicki, Jongeun Choi, Clark J. Radcliffe

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Determining the reliability of measurements used to quantify head-neck motor control is necessary before they can be used to study the effects of injury or treatment interventions. Thus, the purpose of this study was to determine the within- and between-day reliability of position tracking, position stabilization and force tracking tasks to quantify head-neck motor control. Ten asymptomatic subjects performed these tasks on two separate days. Position and force tracking tasks required subjects to track a pseudorandom square wave input signal by controlling their head-neck angular position (position tracking) or the magnitude of isometric force generated against a force sensor by the neck musculature (force tracking) in the sagittal plane. Position stabilization required subjects to maintain an upright head position while pseudorandom perturbations were applied to the upper body using a robotic platform. Within-day and between-day reliability of the frequency response curves were assessed using coefficients of multiple correlations (CMC). Root mean square error (RMSE) and mean bandpass signal energy, were computed for each task and between-day reliability was calculated using intra-class correlation coefficients (ICC). Within- and between-day CMCs for the position and force tracking tasks were all ≥0.96, while CMCs for position stabilization ranged from 0.72 to 0.82. ICCs for the position and force tracking tasks were all ≥0.93. For position stabilization, ICCs for RMSE and mean bandpass signal energy were 0.66 and 0.72, respectively. Measures of sagittal plane head-neck motor control using position tracking, position stabilization and force tracking tasks were demonstrated to be reliable.

Original languageEnglish
Pages (from-to)549-554
Number of pages6
JournalJournal of Biomechanics
Volume48
Issue number3
DOIs
Publication statusPublished - 2015 Feb 5

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Advisory Committees
Reproducibility of Results
Neck
Stabilization
Head
Mean square error
Robotics
Frequency response
Sensors
Wounds and Injuries

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

Cite this

Popovich, John M. ; Reeves, N. Peter ; Priess, M. Cody ; Cholewicki, Jacek ; Choi, Jongeun ; Radcliffe, Clark J. / Quantitative measures of sagittal plane head-neck control : A test-retest reliability study. In: Journal of Biomechanics. 2015 ; Vol. 48, No. 3. pp. 549-554.
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Quantitative measures of sagittal plane head-neck control : A test-retest reliability study. / Popovich, John M.; Reeves, N. Peter; Priess, M. Cody; Cholewicki, Jacek; Choi, Jongeun; Radcliffe, Clark J.

In: Journal of Biomechanics, Vol. 48, No. 3, 05.02.2015, p. 549-554.

Research output: Contribution to journalArticle

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