The relationship between self-presentation concerns and pre-game affect among adolescent American football players

Background: The relationship between turf toe and plantar foot pressures has not been extensively studied. Two hypotheses were tested in a cohort of professional American football players: first, that a history of turf toe is associated with increased peak hallucal and first metatarsophalangeal (MTP) plantar pressures; second, that decreased range of motion (ROM) of the first MTP correlates with increased peak hallucal and first MTP plantar pressures. Materials and Methods: Forty-four athletes from one National Football League (NFL) team were screened for a history of turf toe during preseason training. Dorsal passive MTP ROM and dynamic plantar pressures were measured in both feet of each player. Anatomical masking was used to assess peak pressure at the first MTP and hallux. Results: First MTP dorsiflexion was significantly lower in halluces with a history of turf toe (40.6 ± 15.1 degrees versus 48.4 ± 12.8 degrees, p = 0.04). Peak hallucal pressures were higher in athletes with turf toe (535 ± 288 kPa versus 414 ± 202 kPa, p = 0.05) even after normalizing for athlete body mass index ( p = 0.0003). Peak MTP pressure was not significantly different between the two groups tested. First MTP dorsiflexion did not correlate with peak hallucal or first MTP pressures. Conclusion: This study showed that turf toe is associated with decreased MTP motion. In addition, increased peak hallucal pressures were found. Further study is warranted to determine whether these pressures correlate with the severity of symptoms or progression of turf toe to first MTP arthritis.

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THE RELATIONSHIP BETWEEN REPETITIVE HEAD IMPACT EXPOSURE AND CHRONIC TRAUMATIC ENCEPHALOPATHY IN AMERICAN FOOTBALL PLAYERS

Alzheimer s & Dementia ◽

10.1016/j.jalz.2017.07.543 ◽

2017 ◽

Vol 13 (7) ◽

pp. P1469-P1470

Author(s):

Jesse Mez ◽

Daniel H. Daneshvar ◽

Bobak Abdolmohammadi ◽

Patrick T. Kiernan ◽

Michael L. Alosco ◽

...

Keyword(s):

Chronic Traumatic Encephalopathy ◽

Head Impact ◽

American Football ◽

Football Players ◽

The Relationship

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Sports Level and the Personality of American Football Players in Poland

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph182413026 ◽

2021 ◽

Vol 18 (24) ◽

pp. 13026

Author(s):

Paweł Piepiora ◽

Damian Kwiatkowski ◽

Justyna Bagińska ◽

Dimitris Agouridas

Keyword(s):

Big Five ◽

Divergent Thinking ◽

Openness To Experience ◽

American Football ◽

Football Players ◽

Big Five Personality ◽

Personality Questionnaire ◽

Personality Tests ◽

Football Clubs ◽

The Relationship

Research on personality in sport is very popular as it allows prediction of the behavior of players in the starting situation. Hence, verifications of players due to their sports level may turn out to be crucial. Due to the dynamic development of American football in Poland, we undertook research to verify the relationship between the sports level and the personality of these players. The Big Five personality study that we carried out involved players aged from 20 to 29—the representatives of American football clubs in Poland (N = 140) from three league games levels: LFA 1 (n = 75), LFA 2 (n = 40), and LFA 9 (n = 25). The NEO-FFI personality questionnaire was used as a research tool. The players from the top-level games were characterized by their openness to experience, the level of which decreases along with the decrease in the players’ sports levels. The differences in openness to experience were revealed, first of all, in divergent thinking and creativity. It was ascertained that openness to experience is a characteristic personality trait for American football players in Poland. Therefore, systematic conduct of personality tests among American football players in Poland, in the process of selecting candidates for the highest levels of football competition, would be recommended. This might significantly affect the development of the sports level of this discipline in Poland. The obtained results of research on personality may, moreover, prove to be useful in selecting players and improving the predictions of important sports behaviors in American football in Poland.

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Does Overexertion Correlate with Increased Injury? The Relationship Between Player Load and Soft Tissue Injury in Professional American Football Players Utilizing Wearable Technology

Arthroscopy The Journal of Arthroscopic and Related Surgery ◽

10.1016/j.arthro.2017.08.109 ◽

2017 ◽

Vol 33 (10) ◽

pp. e103

Author(s):

Ryan Li ◽

Sagar Rambhia ◽

Joe Sheehan ◽

Michael J. Salata ◽

James E. Voos

Keyword(s):

Soft Tissue ◽

Tissue Injury ◽

Soft Tissue Injury ◽

Wearable Technology ◽

American Football ◽

Football Players ◽

The Relationship

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Does Overexertion Correlate With Increased Injury? The Relationship Between Player Workload and Soft Tissue Injury in Professional American Football Players Using Wearable Technology

Sports Health A Multidisciplinary Approach ◽

10.1177/1941738119868477 ◽

2019 ◽

Vol 12 (1) ◽

pp. 66-73 ◽

Cited By ~ 5

Author(s):

Ryan T. Li ◽

Michael J. Salata ◽

Sagar Rambhia ◽

Joe Sheehan ◽

James E. Voos

Keyword(s):

Soft Tissue ◽

Tissue Injury ◽

Soft Tissue Injury ◽

Soft Tissue Injuries ◽

Wearable Technology ◽

Training Load ◽

American Football ◽

Football Players ◽

Tissue Injuries ◽

The Relationship

Background: The relationship of training load to injury using wearable technology has not been investigated in professional American football players. The primary objective of this study was to determine the correlation between player workload and soft tissue injury over the course of a football season utilizing wearable global positioning system (GPS) technology. Hypothesis: Increased training load is associated with a higher incidence of soft tissue injuries. Study Design: Case-control study. Level of Evidence: Level 3. Methods: Player workloads were assessed during preseason and regular-season practice sessions using GPS tracking and triaxial accelerometry from 2014 to 2016. Soft tissue injuries were recorded during each season. Player workload during the week of injury (acute) and average weekly workload during the 4 weeks (chronic) prior to injury were determined for each injury and in uninjured position-matched controls during the same week. A matched-pairs t test was used to determine differences in player workload. Subgroup analysis was also conducted to determine whether observed effects were confounded by training period and type of injury. Results: In total, 136 lower extremity injuries were recorded. Of the recorded injuries, 101 injuries with complete GPS and clinical data were included in the analysis. Injuries were associated with greater increases in workload during the week of injury over the prior month when compared with uninjured controls. Injured players saw a 111% (95% CI, 66%-156%) increase in workload whereas uninjured players saw a 73% (95% CI, 34%-112%) increase in workload during the week of injury ( P = 0.032). Individuals who had an acute to chronic workload ratio higher than 1.6 were 1.5 times more likely to sustain an injury relative to time- and position-matched controls (64.6% vs 43.1%; P = 0.004). Conclusion: Soft tissue injuries in professional football players were associated with sudden increases in training load over the course of a month. This effect seems to be especially pronounced during the preseason when player workloads are generally higher. These results suggest that a gradual increase of training intensity is a potential method to reduce the risk of soft tissue injury. Clinical Relevance: Preseason versus regular-season specific training programs monitored with wearable technology may assist team athletic training and medical staff in developing programs to optimize player performance.

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Relationship Between Toe Muscular Strength and the Ability to Change Direction in Athletes

Journal of Human Kinetics ◽

10.1515/hukin-2017-0183 ◽

2018 ◽

Vol 64 (1) ◽

pp. 47-55 ◽

Cited By ~ 3

Author(s):

Yasuhiro Yuasa ◽

Toshiyuki Kurihara ◽

Tadao Isaka

Keyword(s):

Muscular Strength ◽

Metatarsophalangeal Joint ◽

American Football ◽

Football Players ◽

Test Results ◽

Change Of Direction ◽

Change Direction ◽

Toe Flexor Strength ◽

The Relationship ◽

Flexor Strength

Abstract This study aimed to investigate the relationship between toe muscular strength and the ability to change direction in athletes. Seventeen collegiate American-football players participated in the study (age 19.9 ± 0.9 years, competition experience 7.3 ± 1.7 years). Two types of measurements were performed to evaluate toe muscular strength: toe flexor strength with the metatarsophalangeal joint in the planter flexed position and toe-pushing force with the metatarsophalangeal joint in the dorsiflexed position. The ability to change direction was evaluated using the pro-agility and 3-cone tests and change of direction deficits, calculated by subtracting the sprint times from the pro-agility and 3-cone times. There were significant correlations between toe-pushing force and the results of the pro-agility and 3-cone tests, but no significant correlations between toe flexor strength and the pro-agility and 3-cone tests. Neither toe-pushing force nor toe flexor strength was significantly correlated with the sprint test results. Furthermore, toe-pushing force was significantly correlated with the 3-cone test deficit, but toe flexor strength was not. The ability to change direction is more strongly affected by toe muscular strength (measured as toe-pushing force) with the metatarsophalangeal joint in the dorsiflexed angle than by toe muscular strength (measured as toe flexor strength) with the metatarsophalangeal joint in the plantar flexed angle. Our results suggest that athletes can improve their ability to change direction with toe muscular strength training with the metatarsophalangeal joint in the dorsiflexed position.

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