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

Noncompartmental Analysis: Mean Residence Time01:05

Noncompartmental Analysis: Mean Residence Time

598
According to statistical moment theory, mean residence time (MRT) is an important measure in pharmacokinetics. MRT can be defined as the expected mean of a probability density function distribution. It provides valuable insights into drug disposition in the body.
After the administration of a drug through intravenous bolus injection, the drug molecules are distributed throughout the body and remain there for varying periods. The MRT represents the average time these drug molecules stay in the...
598
Components of Stress01:23

Components of Stress

534
Stress analysis under multiple loading conditions is intricate, necessitating a comprehensive grasp of normal and shearing stresses. Consider a small cube at point O, subjected to stress on all six faces, visible or not. Normal stress components σx, σy, σz act perpendicularly to the x, y, and z axes. Shearing stress components τxy and τxz are exerted on faces perpendicular to these axes.
Interestingly, the hidden cube faces also experience these stresses, equal and...
534
Components of Language01:24

Components of Language

815
Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs.
815
Noncompartmental Analysis: Mean Transit, Absorption and Dissolution Time01:02

Noncompartmental Analysis: Mean Transit, Absorption and Dissolution Time

382
When drugs are administered extravascularly, a comprehensive evaluation through noncompartmental analysis becomes imperative. This analytical approach considers various parameters that play a crucial role in understanding the pharmacokinetics of these drugs.
One of the key parameters is the mean transit time (MTT), which refers to the total duration required for drug molecules to transit through the body. MTT is determined by calculating the ratio of the area under the moment curve to the area...
382
Vector Algebra: Method of Components01:08

Vector Algebra: Method of Components

19.4K
It is cumbersome to find the magnitudes of vectors using the parallelogram rule or using the graphical method to perform mathematical operations like addition, subtraction, and multiplication. There are two ways to circumvent this algebraic complexity. One way is to draw the vectors to scale, as in navigation, and read approximate vector lengths and angles (directions) from the graphs. The other way is to use the method of components.
In many applications, the magnitudes and directions of...
19.4K
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

1.2K
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Conversion surgery after response to zolbetuximab-based chemotherapy in Claudin 18.2-positive gastric cancer: a case report.

Journal of surgical case reports·2026
Same author

Robotic-assisted transverse colectomy for transverse colon cancer in a centenarian: a case report.

Journal of surgical case reports·2026
Same author

Real-Time Imaging of Intercalation-Conversion Li Storage in MXenes for Solid-State Batteries.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Chondroitin sulfate E activates IL-6/STAT3 signaling to drive androgen-independent growth in castration-resistant prostate cancer.

Cell communication and signaling : CCS·2026
Same author

Enhancing the Cycling Stability of Amorphous-Based LiNiO<sub>2</sub>-Li<sub>2</sub>MnO<sub>3</sub>-Li<sub>2</sub>SO<sub>4</sub> Positive Electrodes: Insights from In Situ Transmission Electron Microscopy.

ACS nano·2025
Same author

Gait and frontal lobe function become associated in patients with idiopathic normal pressure hydrocephalus after shunt surgery.

Frontiers in neurology·2025

Related Experiment Video

Updated: Jan 30, 2026

Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
07:51

Video Movement Analysis Using Smartphones ViMAS: A Pilot Study

Published on: March 14, 2017

17.3K

Gait analysis in a component timed-up-and-go test using a smartphone application.

Masatsune Ishikawa1, Shigeki Yamada2, Kazuo Yamamoto3

  • 1Rakuwa Villa Ilios, 186 Jyurakumawari-Nishimachi, Nakagyo-ku, Kyoto, Japan; Normal Pressure Hydrocephalus Center, Rakuwakai Otowa Hospital, 2 Chinjicho, Yamashina-ku, Kyoto, Japan.

Journal of the Neurological Sciences
|January 26, 2019
PubMed
Summary

Smartphone analysis of the Timed-Up-and-Go (TUG) test reveals distinct gait patterns. This technology can differentiate between healthy individuals and those with hydrocephalus, aiding in diagnosis and treatment assessment.

Keywords:
AgedGaitHydrocephalusSmartphone

More Related Videos

Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder
06:54

Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder

Published on: March 4, 2018

14.8K
Real-time Tracking of DNA Fragment Separation by Smartphone
06:58

Real-time Tracking of DNA Fragment Separation by Smartphone

Published on: June 1, 2017

15.3K

Related Experiment Videos

Last Updated: Jan 30, 2026

Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
07:51

Video Movement Analysis Using Smartphones ViMAS: A Pilot Study

Published on: March 14, 2017

17.3K
Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder
06:54

Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder

Published on: March 4, 2018

14.8K
Real-time Tracking of DNA Fragment Separation by Smartphone
06:58

Real-time Tracking of DNA Fragment Separation by Smartphone

Published on: June 1, 2017

15.3K

Area of Science:

  • Biomedical Engineering
  • Neurology
  • Gait Analysis

Background:

  • The Timed-Up-and-Go (TUG) test traditionally measures total mobility time.
  • Smartphone advancements allow for detailed analysis of TUG's six components.
  • Assessing gait patterns using these components is a novel approach.

Purpose of the Study:

  • To investigate the utility of smartphone-based TUG component analysis for gait pattern assessment.
  • To differentiate gait patterns in idiopathic normal-pressure hydrocephalus (iNPH) patients compared to controls.

Main Methods:

  • 32 iNPH patients and 87 controls performed the TUG using a smartphone app.
  • The app automatically detected and computed times for TUG components (Stand, Go, Turn1, Come, Turns, Sit).
  • Statistical analyses, including item cluster analysis, were employed.

Main Results:

  • Controls exhibited high correlations between 'Go'/'Come' and 'Turn1'/'Turn2', indicating consistent straight walking and turning.
  • This correlation pattern was absent in iNPH patients at baseline and after CSF removal.
  • Post-surgery, iNPH patients regained high correlations, mirroring controls.

Conclusions:

  • Smartphone-based TUG component analysis effectively captures gait pattern variations.
  • This method shows promise for diagnosing and monitoring various gait disorders, including iNPH.