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A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
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Quantification of prone thoracic manipulation using inertial sensor-derived accelerations.

Jonathan Mark Williams1, Antonio Cuesta-Vargas2

  • 1Lecturer in Physiotherapy, School of Health and Social Care, Bournemouth University, Bournemouth, UK.

Journal of Manipulative and Physiological Therapeutics
|March 25, 2014
PubMed
Summary
This summary is machine-generated.

Experienced therapists achieve greater acceleration and shorter time-to-peak acceleration during thoracic manipulation. Inertial sensors effectively quantify these differences, aiding technique analysis.

Keywords:
BiomechanicsManual TherapySpine

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Area of Science:

  • Biomechanics
  • Spinal Manipulation Therapy
  • Clinical Measurement

Background:

  • Thoracic manipulation is a common manual therapy technique.
  • Quantifying the biomechanical forces involved in thoracic manipulation is crucial for understanding its efficacy and safety.
  • Inter-therapist variability in technique can influence treatment outcomes.

Purpose of the Study:

  • To determine linear acceleration and time-to-peak acceleration during thoracic manipulation.
  • To compare the effects of hand position on these parameters.
  • To assess the utility of inertial sensors in quantifying manipulation variables and detecting inter-therapist differences.

Main Methods:

  • Thirteen volunteers underwent prone thoracic manipulation by two clinicians.
  • Accelerations were recorded using an inertial sensor.
  • Peak thrust acceleration and time-to-peak thrust were measured for right- and left-handed techniques.

Main Results:

  • Differences in thrust acceleration were observed between right- and left-handed techniques for one therapist.
  • The more experienced therapist produced greater peak thrust accelerations and shorter time-to-peak acceleration.
  • Higher accelerations correlated with a greater likelihood of cavitation.

Conclusions:

  • Therapist experience and frequency of use are associated with increased acceleration and reduced time-to-peak acceleration during thoracic manipulation.
  • Inertial sensors are a viable tool for quantifying thoracic manipulation parameters.
  • Inertial sensing can detect differences in technique between clinicians.