Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Measuring Acceleration Due to Gravity01:12

Measuring Acceleration Due to Gravity

Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out.
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
Assessment of apical pulse01:17

Assessment of apical pulse

Assessing the Apical Pulse
Assessing the apical pulse is a critical nursing procedure, particularly indicated for:
Gyroscope01:02

Gyroscope

A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis is unaffected by the orientation of the body that encloses it. The body or vehicle enclosing the gyroscope can be moved from place to place, while the orientation of the spin axis remains the same. This makes gyroscopes very useful in navigation, especially where magnetic compasses cannot be used, such as in crewed and crewless spacecraft,...
Assessment of apical radial pulse01:25

Assessment of apical radial pulse

Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Predictors of deep brain stimulation response in patients with obsessive compulsive disorder: a systematic review and meta-analysis.

Scientific reports·2026
Same author

Life-course trajectories and modifiable risk factors for incident walking limitation and mortality in 25 high-income, middle-income, and low-income countries (PURE): a prospective cohort study.

The lancet. Healthy longevity·2026
Same author

Pathological cortico-STN beta coupling in Parkinson's disease is confined to beta bursts.

bioRxiv : the preprint server for biology·2026
Same author

Asundexian for Secondary Stroke Prevention.

The New England journal of medicine·2026
Same author

Time-dependent facilitation of homologous actions.

Experimental brain research·2026
Same author

Stimulation of the human periaqueductal gray induces threat bradycardia: a case report.

Neurocase·2026
Same journal

Cerebellum crus II cortical thickness as a cognitive brain reserve in Parkinson's disease.

Parkinsonism & related disorders·2026
Same journal

Serious games and virtual reality in Parkinson's disease rehabilitation: A systematic review of randomized controlled trials.

Parkinsonism & related disorders·2026
Same journal

Respiratory-swallow training in Parkinson's disease: Effects of a single session on swallowing safety and efficiency with exploratory comparisons of biofeedback.

Parkinsonism & related disorders·2026
Same journal

Levodopa responsive childhood-onset generalized dystonia with diaphragmatic involvement associated with an SPTBN2 variant.

Parkinsonism & related disorders·2026
Same journal

Approach to a case of Neuro-Gonadal disorder: Perrault syndrome.

Parkinsonism & related disorders·2026
Same journal

Parakinesia in Chorea: Why attribution of intention is misleading.

Parkinsonism & related disorders·2026
See all related articles

Related Experiment Video

Updated: Jun 4, 2026

Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment
06:49

Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment

Published on: December 11, 2015

Rapid tremor frequency assessment with the iPhone accelerometer.

Raed A Joundi1, John-Stuart Brittain, Ned Jenkinson

  • 1Department of Physiology, Anatomy, and Genetics, Oxford University, UK. raed.joundi@magd.ox.ac.uk

Parkinsonism & Related Disorders
|February 9, 2011
PubMed
Summary
This summary is machine-generated.

This study shows that using an iPhone

More Related Videos

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

Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
09:35

Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor

Published on: June 16, 2021

Related Experiment Videos

Last Updated: Jun 4, 2026

Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment
06:49

Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment

Published on: December 11, 2015

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

Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
09:35

Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor

Published on: June 16, 2021

Area of Science:

  • Biomedical Engineering
  • Medical Technology
  • Neurology

Background:

  • Current methods for measuring tremor frequency are often expensive and cumbersome.
  • Physicians require efficient tools for patient assessment, particularly for tremors.
  • Tremor assessment is crucial for diagnosis and management of various neurological conditions.

Purpose of the Study:

  • To evaluate the utility of a smartphone application (iSeismo) utilizing the iPhone's accelerometer for rapid tremor frequency measurement.
  • To determine if this low-cost method can provide accurate tremor frequency data comparable to established techniques.
  • To explore the potential of mobile health (mHealth) technology in clinical tremor assessment.

Main Methods:

  • Utilized the iSeismo application on an iPhone to record tremor data.
  • Collected data from 7 patients presenting with various types of tremors.
  • Compared frequency measurements obtained via iSeismo with those from sophisticated electromyography (EMG) analysis.

Main Results:

  • Frequency measurements from the iSeismo application demonstrated a close correlation with EMG analysis.
  • The iPhone's accelerometer, via iSeismo, provided rapid and comparable tremor frequency data.
  • The study confirmed the feasibility of using this mobile technology for tremor assessment.

Conclusions:

  • The iSeismo application on an iPhone offers a viable, cost-effective solution for measuring tremor frequency.
  • This approach can significantly enhance the efficiency of patient assessments in clinical settings.
  • Smartphone-based accelerometry shows promise for quick evaluation of the dominant frequency component in diverse tremors.