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Related Concept Videos

Anatomical Positions01:11

Anatomical Positions

In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Anatomical Movements00:51

Anatomical Movements

Anatomical movements refer to the various actions or motions that can be performed by the body's joints and muscles. These movements are described using specific terms to provide a standardized way of discussing and understanding the range of motion at different joints.
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Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist, metacarpophalangeal,...
Assessing Blood pressure in the Leg01:11

Assessing Blood pressure in the Leg

Proper measurement of leg blood pressure is a critical skill for healthcare providers, ensuring precise and reliable readings. When performed correctly, this procedure informs patient care and enhances the efficacy of interventions. The following text outlines step-by-step guidelines to measure blood pressure in the leg, providing clarity and ease of understanding for practitioners.
Preparation:
Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

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Ankle Joint01:10

Ankle Joint

The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...

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Related Experiment Video

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Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment
06:49

Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment

Published on: December 11, 2015

Arm position during daily activity.

Brian Coley1, Brigitte M Jolles, Alain Farron

  • 1Laboratory of Movement Analysis and Measurement, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.

Gait & Posture
|June 13, 2008
PubMed
Summary
This summary is machine-generated.

A new wearable sensor system accurately measures shoulder arm positions during daily activities. This method provides an objective assessment of arm function, useful for evaluating shoulder diseases and arm asymmetry.

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Area of Science:

  • Biomechanics
  • Rehabilitation Engineering
  • Orthopedics

Background:

  • Functional assessment of shoulder movement during daily activities is crucial for evaluating shoulder conditions.
  • Current assessment methods often rely on subjective questionnaires, lacking objective quantification of arm positions and durations.

Purpose of the Study:

  • To present a novel ambulatory system using inertial sensors for evaluating shoulder functional assessment during daily activities.
  • To define and validate a new objective score for assessing arm function based on shoulder position symmetry.

Main Methods:

  • An ambulatory system with inertial sensors attached to the humerus was developed to detect arm positions based on humerus elevation.
  • The system was tested on 31 healthy subjects, evaluating its ability to recognize nine defined arm positions and their frequency/duration during ~8 hours of daily activity.
  • A new symmetry index score was proposed based on quantified arm positions and durations.

Main Results:

  • The system demonstrated high sensitivity (80-100%) and specificity (96-99%) in recognizing arm positions.
  • Healthy subjects predominantly used arm positions below 120 degrees elevation (96% of the time).
  • No significant differences were found between dominant and non-dominant arms in frequency or duration of arm positions.

Conclusions:

  • The proposed ambulatory system provides an objective and sensitive method for evaluating shoulder function during daily activities.
  • The new symmetry index score shows promise for assessing arm function asymmetry in patients with shoulder diseases.
  • This technique offers a valuable tool for objective measurement in various shoulder pathologies affecting daily arm function.