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

Weighted Mean00:57

Weighted Mean

5.4K
While taking the arithmetic, geometric, or harmonic mean of a sample data set, equal importance is assigned to all the data points. However, all the values may not always be equally important in some data sets. An intrinsic bias might make it more important to give more weightage to specific values over others.
For example, consider the number of goals scored in the matches of a tournament. While computing the average number of goals scored in the tournament, it may be more important to...
5.4K
Apparent Weight01:09

Apparent Weight

8.5K
True weight is the measure of the gravitational force acting on an object. However, if the object accelerates, its measured weight is different from its true weight. Similar observations can be made when the object is submerged in water. An object's weight in water is its apparent weight, which is equal to the difference between its true weight and the buoyant forces.
Consider a person standing on a bathroom scale inside an elevator. If the scale is accurate at rest, its reading equals the...
8.5K
Exercise and Muscle Performance01:27

Exercise and Muscle Performance

1.6K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
1.6K
Inclusive Fitness00:57

Inclusive Fitness

36.3K
Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
36.3K
Weightlessness01:01

Weightlessness

5.5K
When an object is dropped, it accelerates toward the center of the Earth. If the net external force on the object is its weight, it is said to be in free fall; that is, the only force acting on the object is gravity. Galileo was instrumental in showing that, in the absence of air resistance, all objects fall with the same acceleration g. However, when objects on the Earth fall downward, they are never truly in free fall, because there is always some upward resistance force from the air acting...
5.5K
Apparent Weight and the Earth's Rotation01:28

Apparent Weight and the Earth's Rotation

3.7K
Since all objects on the Earth's surface move through a circle every 24 hours, there must be a net centripetal force on each object, directed towards the center of that circle. The points of the north and south poles are the only exception to this rule.
For an object on the Earth's equator, the net centripetal force that accounts for its rotation is the Earth's pull towards its center, or the weight minus the normal force that prevents it from piercing into the Earth's surface....
3.7K

You might also read

Related Articles

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

Sort by
Same author

Intelligent Traffic Control Strategies for VLC-Connected Vehicles and Pedestrian Flow Management.

Sensors (Basel, Switzerland)·2025
Same author

Enhancing Airport Traffic Flow: Intelligent System Based on VLC, Rerouting Techniques, and Adaptive Reward Learning.

Sensors (Basel, Switzerland)·2025
See all related articles

Related Experiment Video

Updated: Sep 18, 2025

Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research
08:33

Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research

Published on: January 5, 2024

1.3K

Intelligent Sports Weights.

Olga Dos Santos Duarte1, Gustavo Jacinto1,2,3, Mário Véstias1,2

  • 1Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emidio Navarro, 1, 1959-007 Lisboa, Portugal.

Sensors (Basel, Switzerland)
|June 27, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces an embedded system for automatic weightlifting supervision, using a Convolutional Neural Network and IMU data to ensure correct exercise form and prevent injuries during unsupervised workouts. The low-cost system achieves nearly 95% accuracy in real-time monitoring.

Keywords:
embedded IoThuman activity recognitionintelligentfitnesslow-power

More Related Videos

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

8.1K
Importance of Jumping Ability in Handball Throwing Speed and Accuracy
02:43

Importance of Jumping Ability in Handball Throwing Speed and Accuracy

Published on: April 4, 2025

661

Related Experiment Videos

Last Updated: Sep 18, 2025

Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research
08:33

Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research

Published on: January 5, 2024

1.3K
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

8.1K
Importance of Jumping Ability in Handball Throwing Speed and Accuracy
02:43

Importance of Jumping Ability in Handball Throwing Speed and Accuracy

Published on: April 4, 2025

661

Area of Science:

  • Sports Science
  • Biomechanical Engineering
  • Embedded Systems

Background:

  • Weightlifting is a popular fitness activity, but unsupervised training risks serious injury due to improper form.
  • Current supervision methods are often impractical or unavailable for individual training sessions.

Purpose of the Study:

  • To develop an affordable, off-the-person embedded system for real-time automatic supervision of weightlifting exercises.
  • To enhance user safety and optimize athletic performance through accurate feedback on exercise execution.

Main Methods:

  • An embedded System-on-a-Chip (SoC) was utilized, integrating an Inertial Measurement Unit (IMU) to capture motion data.
  • A Convolutional Neural Network (CNN) model was employed for real-time classification of exercise correctness based on IMU data.
  • The system was designed to be coupled directly to the weights for trajectory analysis.

Main Results:

  • The system demonstrated real-time monitoring capabilities with an average accuracy close to 95% in classifying correct weightlifting trajectories.
  • Prototypes were housed in custom 3D-printed casings and validated in operational environments.
  • The solution is low-cost and adaptable to various weightlifting exercises.

Conclusions:

  • The proposed embedded system offers a viable, accurate, and low-cost solution for automatic weightlifting supervision.
  • This technology can significantly reduce the risk of injury for individuals training without direct supervision.
  • Open availability of research outputs and models encourages further development and adoption.