Jump to content

File:Preventing black toenail subungual hematoma.svg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (SVG file, nominally 914 × 770 pixels, file size: 50 KB)

Summary

Description
English: Runners suffer from a painful condition variously called black toenail, jogger's toe, runner's toe, and subungual hematoma (bleeding under the nail). This is particularly common in downhill running. In a marathon, several percent of runners may be affected.[1]

It is caused by the toe(s) being repeatedly thrust against the inside of the toebox of the shoe.[1]

Right Column: If the shoe is too loose on the midfoot, the foot can slide forwards in the shoe, especially when going downhill. This may jam the toes into the end of the toebox.[1]

Center Column: Feet become longer and wider when weight is put on them, because the arches flatten, and the toes also splay and bend.[2]:p15,18 At the end of a long journey on foot, the arches flatten, the metatarsals spread, and the foot swells more than after a short one.[2]:52 If there is not enough space around the toes, the toes will hit the toebox repeatedly.[1]

Left Column: Wearing footwear which fits helps prevent runner's toe.[1] Foot deformation and dysfunction can encourage calluses to form.[1]

  1. ↑ a b c d e f (August 2004). "The wear and tear of 26.2: dermatological injuries reported on marathon day.". British Journal of Sports Medicine 38 (4): 498–501. DOI:10.1136/bjsm.2004.011874. PMID 15273194. PMC: 1724877.
  2. ↑ a b (1912) The soldier's foot and the military shoe; a handbook for officers and noncommissioned officers of the line, Menasha, Wis.: Press of the George Banta publishing company (this is the publication of a four-year review into the footwear of the US military by the Army Shoe Board, of which the author, a physician and senior officer of the United States Army Medical Corps, is president.
Date
Source Own work
Author HLHJ

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

inception

14 January 2020

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current19:09, 14 January 2020Thumbnail for version as of 19:09, 14 January 2020914 × 770 (50 KB)HLHJUser created page with UploadWizard

The following 2 pages use this file:

Global file usage

The following other wikis use this file:

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikipedia.org/wiki/File:Preventing_black_toenail_subungual_hematoma.svg"