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

Response Surface Methodology

Response Surface Methodology

Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:

Design Example: Frog Muscle Response

Design Example: Frog Muscle Response

A student is tasked to work on an intriguing experiment involving an RL (Resistor-Inductor) circuit to study the muscle response of a frog's leg to electrical stimulation. The RL circuit plays a crucial role in this experiment, providing the means to control and measure the electrical impulses that trigger muscle contraction.
When the switch connecting the RL circuit is closed, a brief muscle contraction is observed. This is because, at a steady state, the inductor acts like a short...

You might also read

Related Articles

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

Sort by

Same author

Association Between Center of Pressure Parameters and Self-reported factors in Osteoarthritis Across Age and BMI: A cross-sectional Study in East Azerbaijan, Iran.

Medical engineering & physics·2026

Same author

Scientists everywhere must be protected.

Nature·2025

Same author

Evaluation of the trunk modules in the symmetrical and three-dimensional asymmetrical trunk positions.

Scientific reports·2025

Same author

Evaluation of the maximum voluntary isometric lumbar extension in three-dimensional positions.

International journal of occupational safety and ergonomics : JOSE·2025

Same author

Translation, Cross-Cultural Adaptation and Psychometric Properties of the Persian Version of Patient-Specific Functional Scale in Patients with Chronic Low Back Pain.

The archives of bone and joint surgery·2025

Same author

Enzymatic denaturation versus excessive fatigue loading degeneration: Effects on the time-dependent response of the intervertebral disc.

Journal of biomechanics·2024

Search research articles

Related Experiment Video

Updated: Jul 27, 2025

Experimental Methods to Study Human Postural Control

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

Normative database of response surface method for human trunk extension in isometric mode.

Mahmood-Reza Azghani¹, Sharareh Kian-Bostanabad¹, Ali Meghdari²

¹Department of Biomedical Engineering, Sahand University of Technology, Tabriz, Iran.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine

|June 9, 2023

Summary

Asymmetric movements increase low back disorder risk. This study models trunk strength and torques in various postures, offering a tool for injury prevention and assessing task capacity in fields like ergonomics and sports.

Keywords:

Low back disorders coupling torques response surface model triaxial lumbar dynamometer trunk asymmetric positions

More Related Videos

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

An Instrumented Pull Test to Characterize Postural Responses

An Instrumented Pull Test to Characterize Postural Responses

Published on: April 6, 2019

Related Experiment Videos

Last Updated: Jul 27, 2025

Experimental Methods to Study Human Postural Control

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

An Instrumented Pull Test to Characterize Postural Responses

An Instrumented Pull Test to Characterize Postural Responses

Published on: April 6, 2019

Area of Science:

Biomechanics
Ergonomics
Occupational Health

Background:

Asymmetric movements are identified as significant risk factors for low back disorders.
Objective assessment of task capacity requires measuring trunk strength and understanding coupling effects in different postures.

Purpose of the Study:

To estimate maximum voluntary isometric trunk extension strength and associated torques.
To develop predictive models for trunk torques across various postures.

Main Methods:

Thirty male participants performed maximal voluntary isometric trunk extensions in 33 different postures.
The Sharif Lumbar Isometric Strength Tester was used to collect data on moments and angular positions.
Second-order response surface models (RSM) were employed to establish relationships between strength, torques, and trunk angles.

Main Results:

The study successfully formulated relationships between trunk strength and three trunk angles using second-order RSM.
Model adequacy was confirmed through correlation coefficients, standard estimation errors, and lack of fit analysis.
While extension torque was primary, significant lateral bending and rotation torques were also observed concurrently.

Conclusions:

Second-order RSM is a valuable tool for predicting trunk extension, lateral bending, and rotation torques in specific postures.
These predictive models can aid in injury prevention strategies and occupational biomechanics assessments.
The findings are applicable to ergonomics, occupational biomechanics, and sports science for evaluating task capacity and preventing injuries.