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Related Concept Videos

Skewness01:06

Skewness

The measures of central tendency calculated from a data set may not reveal much about its intrinsic distribution. If a plot is made of the data set’s values, the mean and the median may not only differ, but also the plot may have more values on one side of the central tendencies. Such a data set is said to be skewed towards that side.
The longer the tail of the plot on one side, the more skewed it is. The skewness of a data set’s values suggests that the measures of central tendency are...
Types of Skewness01:09

Types of Skewness

If the frequency distribution of a data set is more inclined towards smaller or larger values, the distribution is said to be skewed. If data values are skewed to the right, then the distribution is called positively skewed. Conversely, if the plot is skewed to the left, the distribution is called negatively skewed.
For instance, in the middle of a pandemic, the geographical distribution of vaccine coverage may be positively skewed towards populations in the global north countries. However,...
Lumber Defects01:23

Lumber Defects

Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Wood Surfacing01:14

Wood Surfacing

Wood surfacing is a critical finishing process designed to smoothen the wood surface, enhance its dimensional accuracy, and make handling safer. This process compensates for potential shrinkage during the seasoning phase by marginally increasing the wood dimensions before surfacing. It also helps correct some distortions that may occur as the wood dries.
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

Definition A diabetic foot ulcer (DFU) is a chronic, non-healing wound that develops in individuals with diabetes. It typically occurs on pressure-bearing areas such as the heel, metatarsal heads, or hallux, and carries a high risk of infection and amputation.Pathophysiology • The development of DFUs can be explained by four interconnected mechanisms: neuropathy, ischemia, infection, and impaired wound healing. • Neuropathy is the most common factor. Sensory neuropathy reduces pain perception,...
Muscles of the Leg that Move the Foot and Toes01:28

Muscles of the Leg that Move the Foot and Toes

The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized into the anterior, lateral, and posterior compartments, each with a unique set of muscles carrying out specific functions.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles.

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Related Experiment Video

Updated: Jun 20, 2026

Spotting Cheetahs: Identifying Individuals by Their Footprints
09:47

Spotting Cheetahs: Identifying Individuals by Their Footprints

Published on: May 1, 2016

Skewfoot.

Sebastién Hagmann1, Thomas Dreher, Wolfram Wenz

  • 1Division of Pediatric Orthopaedics and Foot Surgery, Orthopaedic Department, University of Heidelberg, Schlierbacher Landstrasse 200a, Heidelberg 69118, Germany.

Foot and Ankle Clinics
|August 29, 2009
PubMed
Summary

Skewfoot, a rare foot deformity with forefoot adduction and hindfoot valgus, lacks known causes and natural history. Treatment requires careful differentiation and often involves surgery.

Area of Science:

  • Orthopedics
  • Pediatric Orthopedics
  • Foot and Ankle Surgery

Background:

  • Skewfoot is a rare congenital or syndromic foot deformity.
  • It presents with forefoot adduction and hindfoot valgus.
  • The etiology and natural history of skewfoot remain largely unknown.

Purpose of the Study:

  • To summarize the current understanding of skewfoot.
  • To highlight the diagnostic challenges and treatment considerations for skewfoot.
  • To differentiate skewfoot from more common foot deformities.

Main Methods:

  • Literature review of congenital and syndromic foot deformities.
  • Analysis of clinical presentations and diagnostic criteria for skewfoot.
  • Review of current treatment strategies, including conservative and operative measures.

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Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion
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Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

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Low-Cost Gait Analysis for Behavioral Phenotyping of Mouse Models of Neuromuscular Disease
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Low-Cost Gait Analysis for Behavioral Phenotyping of Mouse Models of Neuromuscular Disease

Published on: July 18, 2019

Related Experiment Videos

Last Updated: Jun 20, 2026

Spotting Cheetahs: Identifying Individuals by Their Footprints
09:47

Spotting Cheetahs: Identifying Individuals by Their Footprints

Published on: May 1, 2016

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion
08:19

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

Published on: January 15, 2016

Low-Cost Gait Analysis for Behavioral Phenotyping of Mouse Models of Neuromuscular Disease
05:53

Low-Cost Gait Analysis for Behavioral Phenotyping of Mouse Models of Neuromuscular Disease

Published on: July 18, 2019

Main Results:

  • Skewfoot is characterized by specific forefoot and hindfoot alignment.
  • It requires differentiation from other pediatric foot deformities due to potential treatment resistance.
  • There is no consensus on the optimal treatment approach for skewfoot.

Conclusions:

  • Skewfoot is a distinct entity requiring careful diagnosis.
  • Treatment approaches vary, often necessitating operative intervention.
  • Further research is needed to elucidate the etiology and natural history of skewfoot.