scholarly journals A Retrospective Study of Foot Biomechanics and Injury History in Varsity Football Athletes at the U.S. Naval Academy

2021 ◽  
Author(s):  
Jennifer Windsor ◽  
Joshua Jeffries ◽  
Jeff Sorensen ◽  
Kelly Bach ◽  
Evan Benedek ◽  
...  
Keyword(s):  
Musculoskeletal Pain ◽  
Penalized Regression ◽  
Football Players ◽  
Naval Academy ◽  
Foot Biomechanics ◽  
Extreme Gradient Boosting ◽  
Foot Posture ◽  
History Of ◽  
History Of Pain ◽  
The U.S

ABSTRACT Introduction The six-item Foot Posture Index (FPI-6) was previously developed as an assessment tool to measure the posture of the foot across multiple segments and planes. It was derived from a criterion-based observational assessment of six components of each foot during static standing. The association between abnormal foot posture and musculoskeletal injuries remains unclear and is in of need further exploration. Hypothesis/Purpose The purpose of this study was to assess the association between foot biomechanics and self-reported history of musculoskeletal pain or injury. Study Design Retrospective, cross-sectional study of collegiate football players at the U.S. Naval Academy. Materials and Methods For each athlete, data were recorded on height, weight, self-reported history of pain or injury, and foot posture, which was measured using a FPI-6 with each item measuring the degree of pronation/supination. The primary outcome was each athlete’s maximum deviation from neutral posture across the six-item index (FPImax). The prespecified primary analysis used generalized linear models to measure the association between FPImax and self-report history of pain or injury. Exploratory analyses measured the association using penalized regression (L1-norm) and a type of tree-based ensemble known as extreme gradient boosting (XGBoost). Results Data were collected on 101 athletes, 99 of whom had sufficient body mass index (BMI) data to be included for analysis. Among the 99 athletes, higher FPImax was associated with a prior history of musculoskeletal pain (odds ratio [OR] 1.15, 95% confidence interval [CI] 0.97 to 1.35), although the sample size was too small for the association to be significant with 95% CI (P = .107). FPImax was not associated with a history of knee injury/pain (OR 0.98, 95% CI 0.83 to 1.15, P = .792), nor with a history of ankle/foot injury or pain (OR 1.04, 95% CI 0.90 to 1.21, P = .599). From the L1-penalized model, the FPI components with the strongest linear associations were the L6, R2, R1-squared, and FPImax. From the XGBoost model, the most important variables were FPItotal, BMI, R1, and R2. Conclusions The U.S. Naval Academy football players whose foot postures deviated from neutral were more likely to have reported a previous history of musculoskeletal pain. However, this deviation from normal was not strongly associated with a specific history of pain or injury to the knee, ankle, or foot. Clinical Relevance The information ascertained from this study could be used to better inform clinicians about the value of the FPI in predicting or mitigating injuries for varsity football athletes.

History of Respiratory Illness at the U.S. Naval Academy

2001 ◽  
Author(s):  
Tammy L. Blankenship ◽  
Gary Gackstetter ◽  
Gregory C. Gray
Keyword(s):  
Respiratory Illness ◽  
Naval Academy ◽  
History Of ◽  
The U.S

scholarly journals Association between Foot Posture Index and Ankle Sprain in Indoor Football Players

2016 ◽  
Vol 8 (10) ◽  
pp. 160 ◽  
Author(s):  
Afsaneh Safar Cherati ◽  
Masoud Dousti ◽  
Shima Younespour
Keyword(s):  
Ankle Sprain ◽  
Football Players ◽  
Male And Female ◽  
Positive History ◽  
Foot Posture Index ◽  
Posture Index ◽  
Foot Posture ◽  
History Of ◽  
The Relationship

<p><strong>Objective</strong><strong>: </strong>This study investigated the relationship between foot type and ankle sprain incidence.</p><p><strong>Method</strong><strong>: </strong>In a prospective cohort study using the FPI, 68 adult male and female indoor football (Futsal) players were measured and their feet were classified according to foot posture index (FPI) as neutral, supinated and pronated. They were followed over 6 month as a one competition season and at the end, any injuries at the ankle during this period were detected.</p><p><strong>Result</strong><strong>: </strong>There was no significant association between FPI score (considering the total FPI score and its six components) and occurrence of ankle sprain. Also, no association was existed between gender, age, height, weight, BMI, duration of professional exercise, dominant foot and occurrence of ankle sprain. In this study, the history of previous ankle sprain was the only significant predictor of the occurrence of ankle sprain in the follow-up period. Participants with the positive history of previous ankle sprain were at higher risk of developing new ankle sprain (OR=6.02, 95% CI: (1.93, 18.84), p=0.002).</p><p><strong>Conclusion</strong><strong>: </strong>There was no significant association between FPI score and occurrence of ankle sprain.<strong></strong></p><p><strong>Limitation: </strong>there was scarce of supinated foot in the study so evaluation of relationship between supinated feet and ankle sprain was not applicable.</p>

Albert Abraham Michelson, 1852 - 1931

1932 ◽  
Vol 1 (1) ◽  
pp. 18-25
Keyword(s):  
United States ◽  
High School ◽  
San Francisco ◽  
The United States ◽  
Applied Science ◽  
Naval Academy ◽  
Physical Laboratory ◽  
History Of ◽  
Nautical Almanac ◽  
The U.S

Albert Abraham Michelson was born on December 19, 1852, at Strelno in Posen, now restored to Poland. When he was two years old, he was taken by his parents, Samuel Michelson and Rosalie (Przlubska), to the United States, and, after some fifteen years spent in Virgina City, Nevada, where his brother Charles was born, San Francisco became their home. There his sister Miriam, the author, was born, and the boy attended the high school. He was given, in unusual circumstances, an appointment in the U.S. Naval Academy at Annapolis, and after graduating in 1873 he became a midshipman in the U.S. Navy for two years and was afterwards appointed instructor in physics and chemistry in the Naval Academy in 1875, holding the appointment until 1879. His next year was spent in the Nautical Almanac Office in Washington, and then he studied for two years at the College of France, and at Heidelberg and Berlin. In 1882 he became Professor of Physics in the Case School of Applied Science at Cleveland, Ohio. After seven years he went as Professor of Physics to Clark University, Worcester, Mass., and remained there until 1892. He was then appointed Professor at the head of the Ryerson Physical Laboratory, Chicago ; this appointment he held until shortly before his death, which occurred on May 9, 1931. He married Miss Edna Stanton of Lake Forest, Illinois, in 1899, and they had a son and two daughters. This in brief contains the history of his official appointments : how he filled the various posts is another matter.

scholarly journals Family history of pain and risk of musculoskeletal pain in children and adolescents

Pain ◽  
2019 ◽  
Vol 160 (11) ◽  
pp. 2430-2439 ◽  
Author(s):  
Amabile B. Dario ◽  
Steven J. Kamper ◽  
Mary OʼKeeffe ◽  
Joshua Zadro ◽  
Hopin Lee ◽  
...  
Keyword(s):  
Family History ◽  
Children And Adolescents ◽  
Musculoskeletal Pain ◽  
History Of ◽  
History Of Pain

scholarly journals History of Respiratory Illness at the U.S. Naval Academy

2001 ◽  
Vol 166 (7) ◽  
pp. 581-586 ◽  
Author(s):  
Tammy L. Blankenship ◽  
Gary Gackstetter ◽  
Gregory C. Gray
Keyword(s):  
Respiratory Illness ◽  
Naval Academy ◽  
History Of ◽  
The U.S

The Planning, Design and Construction of the 44-foot Offshore Training Craft for the U.S. Naval Academy

1989 ◽  
Author(s):  
Ian McCurdy ◽  
John Bonds
Keyword(s):  
The Other ◽  
Naval Academy ◽  
History Of ◽  
The U.S ◽  
Design And Construction

This paper includes a brief history of the of used by the Naval Academy’s sailing program and their uses, the development of the criteria used to define the yawl replacement, and finally, a description of the replacement vessel. This class of vessel will eventually replace all of the Academy yawls and the other sail training craft now used by the Sailing Squadron.

The history of pain and hysteria

1997 ◽  
Vol 8 (3) ◽  
pp. 157-162 ◽  
Author(s):  
H Merskey
Keyword(s):  
History Of ◽  
History Of Pain

An American Language

2018 ◽  
Author(s):  
Rosina Lozano
Keyword(s):  
United States ◽  
National Policy ◽  
The United States ◽  
Spanish Language ◽  
Spanish Speakers ◽  
Language Recognition ◽  
Political Language ◽  
Political Issue ◽  
History Of ◽  
The U.S

An American Language is a political history of the Spanish language in the United States. The nation has always been multilingual and the Spanish language in particular has remained as an important political issue into the present. After the U.S.-Mexican War, the Spanish language became a language of politics as Spanish speakers in the U.S. Southwest used it to build territorial and state governments. In the twentieth century, Spanish became a political language where speakers and those opposed to its use clashed over what Spanish's presence in the United States meant. This book recovers this story by using evidence that includes Spanish language newspapers, letters, state and territorial session laws, and federal archives to profile the struggle and resilience of Spanish speakers who advocated for their language rights as U.S. citizens. Comparing Spanish as a language of politics and as a political language across the Southwest and noncontiguous territories provides an opportunity to measure shifts in allegiance to the nation and exposes differing forms of nationalism. Language concessions and continued use of Spanish is a measure of power. Official language recognition by federal or state officials validates Spanish speakers' claims to US citizenship. The long history of policies relating to language in the United States provides a way to measure how U.S. visions of itself have shifted due to continuous migration from Latin America. Spanish-speaking U.S. citizens are crucial arbiters of Spanish language politics and their successes have broader implications on national policy and our understanding of Americans.

Asian Americans and Pacific Islanders Excel in Business but Not without Risks

2016 ◽  
Vol 14 (2) ◽  
pp. 77-90
Author(s):  
Bill Imada
Keyword(s):  
Asian Americans ◽  
Asian American ◽  
Immigration Policy ◽  
Pacific Islanders ◽  
Significant Growth ◽  
Current Trends ◽  
History Of ◽  
Mainstream Society ◽  
American Society ◽  
The U.S

In recent years, data has shown that there has been significant growth in Asian American Pacific Islander-owned (AAPI) enterprises. Driven by demographic changes, related in large part to the history of immigration policy, the AAPI population has been growing, and this has been accompanied by AAPI innovators and entrepreneurs leaving greater marks on American society and the U.S. economy. This growth, however, is not without risks and threats. The legacy of being “othered” by mainstream society means that AAPI success in business and in the corporate landscape can be met with resentment and criticism. This article explores the history of AAPI entrepreneurship and current trends. It also examines the challenges that the community may continue to face and offers recommendations on how to ensure continued growth and expanded opportunities for AAPIs in business.

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