Related Experiment Video
Updated: Jan 27, 2026
04:56
Real-Time Force Measurement Between Emulsion Droplets During Enzymatic Breakdown
Published on: June 27, 2025
620
Impact force measurement in Shirodhara
Swathika Meenraj1, Lakshmana Rao Chebolu1, Balasubramanian Venkatesh2
1Department of Applied Mechanics, Indian Institute of Technology Madras, India.
Journal of Ayurveda and Integrative Medicine
|March 17, 2019
Summary
Shirodhara treatment involves a gentle fluid stream impacting the forehead. This study measured the low impact force, finding it consistent across different oils and correlating with fluid mechanics principles.
Area of Science:
- Ayurvedic medicine
- Biophysics
- Fluid mechanics
Background:
- Shirodhara is an Ayurvedic therapy for stress relief.
- It involves a continuous stream of temperature-controlled fluid impacting the forehead.
Purpose of the Study:
- To measure the impact force generated on the forehead during Shirodhara.
- To investigate force variations with different liquids and a traditional wick.
Main Methods:
- Utilized an Integrated Circuit Piezoelectric force sensor for low-load measurements.
- Tested medicinal oils (Ksheerabala, Mahanarayana) and water.
- Standardized fluid fall height from a dhara pot.
Main Results:
- Impact force measured in the order of 10⁻² N.
- Force showed minimal variation with different liquids.
- Force buildup occurred linearly over an average of 7.2 ms.
Conclusions:
- Shirodhara's forehead impact force is low and consistent across tested oils.
- Measured forces align with fluid mechanics predictions.
- These forces are crucial for estimating stresses and voltage in Shirodhara treatments.
More Related Videos
11:19Characterizing Multiscale Mechanical Properties of Brain Tissue Using Atomic Force Microscopy, Impact Indentation, and Rheometry
Published on: September 6, 2016
13.0K
07:18Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method
Published on: June 14, 2019
7.1K
Related Concept Videos
02:36Electromotive Force
30.1K
Electricity is generated by either electrons or ions flowing through a solution or a conducting medium. This flow of electrons or specifically electrical charge is defined as an electric current. When electrons move through a wire, they generate an electric current. It can be recalled that in a redox reaction, electrons are lost and gained. In the spontaneous redox reaction of zinc with copper, when zinc is immersed in a copper ion solution, a transfer of electrons from one substance to...
30.1K
01:19Impact of Groups on Groups
239
Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
239
03:13Intermolecular Forces
70.7K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
70.7K
01:30Impact
487
Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane.
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
487
03:00Intermolecular vs Intramolecular Forces
96.6K
Intermolecular forces (IMF) are electrostatic attractions arising from charge-charge interactions between molecules. The strength of the intermolecular force is influenced by the distance of separation between molecules. The forces significantly affect the interactions in solids and liquids, where the molecules are close together. In gases, IMFs become important only under high-pressure conditions (due to the proximity of gas molecules). Intermolecular forces dictate the physical properties of...
96.6K
02:28Intermolecular Forces in Solutions
39.3K
The formation of a solution is an example of a spontaneous process, a process that occurs under specified conditions without energy from some external source.
When the strengths of the intermolecular forces of attraction between solute and solvent species in a solution are no different than those present in the separated components, the solution is formed with no accompanying energy change. Such a solution is called an ideal solution. A mixture of ideal gases (or gases such as helium and argon,...
When the strengths of the intermolecular forces of attraction between solute and solvent species in a solution are no different than those present in the separated components, the solution is formed with no accompanying energy change. Such a solution is called an ideal solution. A mixture of ideal gases (or gases such as helium and argon,...
39.3K