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

Physical and Chemical Properties of Matter02:57

Physical and Chemical Properties of Matter

166.3K
The characteristics that enable us to distinguish one substance from another are called properties.
166.3K
Physical Pendulum01:06

Physical Pendulum

2.8K
When a rigid body is hanging freely from a fixed pivot point and is displaced, it oscillates similar to a simple pendulum and is known as a physical pendulum. The period and angular frequency of a physical pendulum are obtained by using the small-angle approximation and drawing parallels with a spring-mass system. The small-angle approximation (sinθ=θ) is valid up to about 14°.
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it...
2.8K
The Scope of Physics01:17

The Scope of Physics

53.0K
Physics is concerned with the interactions of energy, matter, space, and time, in order to discover the underlying mechanisms that underpin all phenomena. The word "physics" comes from the Greek word "phúsis", which means nature. Physics seeks to comprehend the natural world around us at its most fundamental level. It emphasizes the use of quantitative laws to do this, which could be valuable in other fields that want to push the performance boundaries of present...
53.0K
Solving Problems in Physics02:32

Solving Problems in Physics

8.6K
Problem-solving is the ability to apply general physical principles to specific situations, usually expressed by equations. It is an essential skill in physics, and can also be useful for applying physics in everyday life as well. Analytical skills and problem-solving abilities can be applied to new situations, compared to a list of facts, which can never be extensive enough to include every possible circumstance. To solve physics problems, a certain amount of creativity and insight is...
8.6K
Estimation of the Physical Quantities01:05

Estimation of the Physical Quantities

7.6K
On many occasions, physicists, other scientists, and engineers need to make estimates of a particular quantity. These are sometimes referred to as guesstimates, order-of-magnitude approximations, back-of-the-envelope calculations, or Fermi calculations. The physicist Enrico Fermi was famous for his ability to estimate various kinds of data with surprising precision. Estimating does not mean guessing a number or a formula at random. Instead, estimation means using prior experience and sound...
7.6K
Physical Properties of Amines01:26

Physical Properties of Amines

4.2K
Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
4.2K

You might also read

Related Articles

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

Sort by
Same author

The Relation Between Quality of Life, Functional Impairment and Nutritional Status in Older People.

Healthcare (Basel, Switzerland)·2026
Same author

Frailty Syndrome and Cardiovascular Diseases in Older People.

Healthcare (Basel, Switzerland)·2025
Same author

Non-Motor Symptoms and Health-Related Quality of Life in Patients with Isolated Dystonia: A Cross-Sectional Study.

Healthcare (Basel, Switzerland)·2025
Same author

Health-Related Quality of Life in Romanian Patients with Dystonia: An Exploratory Study.

Journal of clinical medicine·2024
Same author

Monitoring and Predicting Health Status in Neurological Patients: The ALAMEDA Data Collection Protocol.

Healthcare (Basel, Switzerland)·2023
Same author

Shared Decision-Making to Improve Health-Related Outcomes for Adults with Stroke Disease.

Healthcare (Basel, Switzerland)·2023
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Jan 30, 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

9.3K

Human Physical Activity Recognition Using Smartphone Sensors.

Robert-Andrei Voicu1, Ciprian Dobre2, Lidia Bajenaru3

  • 1Faculty of Automatic Control and Computers, University Politehnica of Bucharest, Bucharest 060042 , Romania. robert_andrei.voicu@stud.acs.upb.ro.

Sensors (Basel, Switzerland)
|January 26, 2019
PubMed
Summary
This summary is machine-generated.

This study developed a smartphone-based system for recognizing human physical activities like walking and running. The system uses phone sensors to support aging in place and ambient assisted living initiatives.

Keywords:
activity recognitionambient assisted livingmachine learningsmartphones

More Related Videos

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
08:45

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption

Published on: June 20, 2025

587
Smartphone Fundus Photography
05:51

Smartphone Fundus Photography

Published on: July 6, 2017

40.1K

Related Experiment Videos

Last Updated: Jan 30, 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

9.3K
Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
08:45

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption

Published on: June 20, 2025

587
Smartphone Fundus Photography
05:51

Smartphone Fundus Photography

Published on: July 6, 2017

40.1K

Area of Science:

  • Gerontology
  • Computer Science
  • Biomedical Engineering

Background:

  • The global elderly population is rapidly increasing, making "aging in place" a critical focus in ambient assisted living.
  • Supporting independent living for seniors requires reliable methods for monitoring their daily activities and well-being at home.

Purpose of the Study:

  • To propose and evaluate a human physical activity recognition system using smartphone sensors.
  • To enable unobtrusive activity monitoring for supporting "aging in place" through ubiquitous mobile technology.

Main Methods:

  • Developed a classifier utilizing accelerometer, gyroscope, and gravity sensor data from smartphones.
  • Implemented the activity recognition system as an Android application for practical deployment.
  • Trained and tested the system on both an internal and an external dataset.

Main Results:

  • Achieved high accuracy in recognizing six distinct physical activities: walking, running, sitting, standing, ascending, and descending stairs.
  • Demonstrated particularly strong performance for recognizing walking, running, sitting, and standing activities.
  • Validated the system's effectiveness across two different datasets.

Conclusions:

  • Smartphone-based human physical activity recognition is feasible and accurate for supporting ambient assisted living.
  • The proposed system offers a practical, non-intrusive solution for monitoring elderly individuals at home.
  • Ubiquitous mobile technology can be effectively leveraged to enhance safety and independence for seniors aging in place.