Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Measuring Acceleration Due to Gravity

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 - Acceleration

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...

Relative Motion Analysis using Rotating Axes - Acceleration

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...

Angular Velocity and Acceleration

Angular Velocity and Acceleration

We previously discussed angular velocity for uniform circular motion, however not all motion is uniform. Envision an ice skater spinning with their arms outstretched; when they pull their arms inward, their angular velocity increases. Additionally, think about a computer's hard disk slowing to a halt as the angular velocity decreases. The faster the change in angular velocity, the greater the angular acceleration. The instantaneous angular acceleration is defined as the derivative of angular...

Average Acceleration

Average Acceleration

The importance of understanding acceleration spans our day-to-day experiences, as well as the vast reaches of outer space and the tiny world of subatomic physics. In everyday conversation, to accelerate means to speed up. For instance, we are familiar with the acceleration of our car; the harder we apply our foot to the gas pedal, the faster we accelerate. The greater the acceleration, the greater the change in velocity over a given time. Acceleration is widely seen in experimental physics. In...

Second Law: Motion under Same Force

Second Law: Motion under Same Force

Newton's laws can be applied to bodies at rest and bodies in motion. Newton's first law is applied to bodies in equilibrium, whereas the second law applies to accelerating bodies. To study accelerating bodies, first, the directions and magnitudes of acceleration and the applied forces are determined. Then, the free-body diagram is constructed, and Newton's second law is applied, considering the components of the forces in the x and y directions.
Let's imagine a person is standing on a weighing...

You might also read

Related Articles

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

Sort by

Same author

Increased quadriceps intermuscular adipose tissue in chronic liver disease is associated with an altered muscle transcriptome compared with healthy age matched controls.

GeroScience·2025

Same author

Moderate-intensity stepping in older adults: insights from treadmill walking and daily living.

The international journal of behavioral nutrition and physical activity·2023

Same author

Association of working shifts, inside and outside of healthcare, with severe COVID-19: an observational study.

BMC public health·2021

Same author

Device-measured physical activity and its association with physical function in adults with type 2 diabetes mellitus.

Diabetic medicine : a journal of the British Diabetic Association·2020

Same author

Leisure-time physical activity and life expectancy in people with cardiometabolic multimorbidity and depression.

Journal of internal medicine·2019

Same author

Testing the activitystat hypothesis: a randomised controlled trial.

BMC public health·2016

Search research articles

Related Experiment Video

Updated: May 26, 2026

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

Published on: April 21, 2017

Accelerometer counts and raw acceleration output in relation to mechanical loading.

A V Rowlands¹, V H Stiles

¹Sansom Institute for Health Research, School of Health Sciences, University of South Australia, Adelaide, SA, Australia. alex.rowlands@unisa.edu.au

Journal of Biomechanics

|January 6, 2012

Summary

Accelerometer output, measuring physical activity, correlates with ground reaction force (GRF). This suggests accelerometers, including wrist-worn devices, can quantify bone-healthy activities.

More Related Videos

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

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

Published on: June 16, 2021

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

Related Experiment Videos

Last Updated: May 26, 2026

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

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

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

Published on: June 16, 2021

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

Area of Science:

Biomechanics
Human Movement Analysis
Wearable Technology

Background:

Quantifying physical activity is crucial for understanding its impact on bone health.
Accelerometers are commonly used to measure physical activity, but their relationship with biomechanical forces needs further validation.
Ground reaction force (GRF) is a key indicator of mechanical loading on bone.

Purpose of the Study:

To assess the relationship between accelerometer output (counts and raw accelerations) and ground reaction force (GRF) in adults.
To compare the effectiveness of hip-worn and wrist-worn accelerometers in capturing GRF-related activity.

Main Methods:

Ten adults performed walking, running, jumping, and box drop activities.
Ground reaction forces were measured using a force plate.
Accelerometer data (ActiGraph GT1M, GT3X+, GENEA) were collected from hip and wrist placements.

Main Results:

Accelerometer counts (GT1M) significantly correlated with peak impact force, average resultant force, and peak loading rate.
Raw accelerations (GT3X+, GENEA) from both hip and wrist placements showed significant correlations with average resultant force and peak loading rate.
Wrist-worn accelerometers demonstrated a similar relationship with GRF as hip-worn devices.

Conclusions:

Accelerometer output, both counts and raw accelerations, positively correlates with GRF.
Accelerometers are suitable for quantifying physical activities that benefit bone health.
Wrist-worn accelerometers offer a viable alternative to hip-worn devices for bone health research.