Related Experiment Video
Updated: Feb 6, 2026
14:31
Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees
Published on: July 15, 2009
14.5K
Upper body accelerations during level walking in transtibial amputees.
Francesco Paradisi1,2, Eugenio Di Stanislao3,2, Aurora Summa2
11 Institute for Research and Health Care, Fondazione Santa Lucia, Rome, Italy.
Prosthetics and Orthotics International
|August 17, 2018
Summary
Transtibial amputees show increased upper body accelerations and altered movement strategies during walking. This research quanties these changes, aiding in objective mobility assessment and prosthetic training for amputees.
Area of Science:
- Biomechanics
- Gait Analysis
- Prosthetics
Background:
- Upper body movement analysis is crucial in gait research.
- Body-worn sensors enable real-world patient monitoring and fall prevention.
Purpose of the Study:
- Investigate how accelerations propagate to the head during walking in transtibial amputees.
- Characterize upper body movement alterations in individuals with transtibial amputation.
Main Methods:
- Compared 20 transtibial amputees with 20 able-bodied individuals.
- Used magneto-inertial measurement units at head, sternum, and pelvis.
- Measured acceleration root mean square during a 10-meter walking test.
Main Results:
- Amputees exhibited significantly higher acceleration at pelvis and head levels, particularly in the transverse plane.
- Observed distinct upward acceleration propagation patterns in amputees compared to controls.
- Indicated a different motor strategy adopted by amputees to manage gait instability.
Conclusions:
- Quantified objective mobility parameters for transtibial amputees.
- Highlighted altered upper body control and amplified transverse plane accelerations in amputees.
- Suggests assessing accelerations can improve prosthetic training and understanding of motor strategies.
Related Concept Videos
01:17Accelerators
291
Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...
The effectiveness of calcium chloride can...
291
01:30Average Acceleration
14.0K
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...
14.0K
01:16Instantaneous Acceleration
23.2K
Acceleration is in the direction of the change in velocity, but it is not always in the direction of motion. When an object slows down, its acceleration is opposite to the direction of its motion. Although commonly referred to as deceleration, this causes confusion in our analysis as deceleration is not a vector, and does not point to a specific direction with respect to a coordinate system. Therefore, the term deceleration is not used. For example, when a subway train slows down, it...
23.2K
01:30Acceleration Vectors
23.0K
In everyday conversation, accelerating means speeding up. Acceleration is a vector in the same direction as the change in velocity, Δv, therefore the greater the acceleration, the greater the change in velocity over a given time. Since velocity is a vector, it can change in magnitude, direction, or both. Thus acceleration is a change in speed or direction, or both. For example, if a runner traveling at 10 km/h due east slows to a stop, reverses direction, and continues their run at 10 km/h...
23.0K
01:17Accelerating Fluids
2.3K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
2.3K
01:09Levels of Organization
141.1K
Biological organization is the classification of biological structures, ranging from atoms at the bottom of the hierarchy to the Earth's biosphere. Each level of the hierarchy represents an increase in complexity that builds upon the previous level.
Molecules Are Composed of Atoms, and Biomolecules Are Assembled from Molecules:
The most basic levels include atoms, molecules, and biomolecules. Atoms, the smallest unit of ordinary matter, are composed of a nucleus and electrons. Molecules...
Molecules Are Composed of Atoms, and Biomolecules Are Assembled from Molecules:
The most basic levels include atoms, molecules, and biomolecules. Atoms, the smallest unit of ordinary matter, are composed of a nucleus and electrons. Molecules...
141.1K