Jae-Ok, K; Voaklander, D
Effects of Competition Rule Changes on the Incidence of Head Kicks and Possible Concussions in Taekwondo Journal Article
In: Clinical Journal of Sport Medicine, vol. 26, no. 3, pp. 239–244, 2016.
Abstract | Links | BibTeX | Tags: Concussion, head injury, rule change, taekwondo
@article{Jae-Ok2016,
title = {Effects of Competition Rule Changes on the Incidence of Head Kicks and Possible Concussions in Taekwondo},
author = {Jae-Ok, K and Voaklander, D},
doi = {10.1097/JSM.0000000000000244},
year = {2016},
date = {2016-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {26},
number = {3},
pages = {239--244},
abstract = {Objective: Competition rules related to head kicks (HKs) in sparing-taekwondo (S-TKD) were changed in 2009, resulting in more points awarded to the head attacker. The objective of this research is to measure the incidence of HKs and to analyze the characteristics of situations leading up to and after HKs in a postrule change competition. Design: Descriptive epidemiology study using video analysis. Setting: The final matches of the World Taekwondo Championships (WTCs) in 2011 and 2013. Participants: A total of 1760 athletes participated in both WTCs. Sixty-four athletes, who had won elimination-round matches and were 15 years or older, competed in final matches. Main Outcome Measures: The final matches - a total of 64 matches including 95 rounds - were analyzed using an anatomical and outcome coding scheme for HKs. Results: Overall, a total of 30 athletes experienced receiving one or more HKs during 2 WTCs (469 HKs per 1000 athlete-exposures (A-E), 95% confidence interval = 296, 642). Female athletes showed higher incidences of HKs than male. A trend of increasing incidence of HKs was observed in the females. The HKs occurred more frequently among competitors in lightweight categories and those of similar height (49%). Conclusions: Overall, the frequency of HKs seems to have increased compared with matches before 2009. A sharp increase in the numbers of HKs is evident among the elite female athletes. To prevent receiving an HK, updated game strategies such as training for blocking skills, and safety guidelines for HKs, or revisions to rules are needed. Clinical Relevance: The recent changes to competition rules promoting the use of HKs may have resulted in an increasing frequency of HKs compared with research findings before these changes. Multiple HKs occur frequently in S-TKD; care needs to be taken to avoid possible acute/chronic consequences. Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved.},
keywords = {Concussion, head injury, rule change, taekwondo},
pubstate = {published},
tppubtype = {article}
}
Westermann, Robert W; Kerr, Zachary Y; Wehr, Peter; Amendola, Annuziato
Increasing Lower Extremity Injury Rates Across the 2009-2010 to 2014-2015 Seasons of National Collegiate Athletic Association Football Journal Article
In: American Journal of Sports Medicine, vol. 44, no. 12, pp. 3230–3236, 2016, ISBN: 03635465.
Abstract | BibTeX | Tags: *ANKLE wounds, *BRAIN -- Concussion, *COLLEGE athletes, *COLLEGE sports, *EPIDEMIOLOGY, *FOOTBALL injuries, *KNEE -- Wounds & injuries, *LEG -- Wounds & injuries, *PREVENTION, *SPORTS -- Societies, ankle injury, Concussion, CONFIDENCE intervals, DATA analysis -- Software, DESCRIPTIVE statistics, etc., football, IOWA, knee, LONGITUDINAL method, ODDS ratio, RESEARCH, RESEARCH -- Finance, RESEARCH -- Methodology, rule change, UNITED States
@article{Westermann2016,
title = {Increasing Lower Extremity Injury Rates Across the 2009-2010 to 2014-2015 Seasons of National Collegiate Athletic Association Football},
author = {Westermann, Robert W and Kerr, Zachary Y and Wehr, Peter and Amendola, Annuziato},
isbn = {03635465},
year = {2016},
date = {2016-01-01},
journal = {American Journal of Sports Medicine},
volume = {44},
number = {12},
pages = {3230--3236},
abstract = {Background: Sports-related concussions (SRCs) have gained increased societal interest in the past decade. The National Collegiate Athletic Association (NCAA) has implemented legislation and rule changes to decrease the incidence and risk of head injury impacts. The “targeting” rule forbids initiating contact with the crown of a helmet and targeting defenseless players in the head and neck area; however, there are concerns that this rule change has unintentionally led to an increased incidence of lower extremity injuries. Purpose/Hypothesis: The purpose of this study was to evaluate the change in lower extremity injury rates in NCAA football during the 2009-2010 to 2014-2015 seasons. We hypothesized that the lower extremity injury rate has increased across the time period. Study Design: Descriptive epidemiology study. Methods: Sixty-eight NCAA football programs provided 153 team-seasons of data to the NCAA Injury Surveillance Program. Lower extremity injuries (ie, hip/groin, upper leg/thigh, knee, lower leg/Achilles, foot/toes) and SRCs sustained during NCAA football games were examined. We calculated injury rates per 1000 athlete-exposures (AEs) for lower extremity injuries and SRCs. Rate ratios (RRs) compared injury rates between the 2009-2010 to 2011-2012 and 2012-2013 to 2014-2015 seasons. Results: Overall, 2400 lower extremity injuries were reported during the 2009-2010 to 2014-2015 seasons; most were to the knee (33.6%) and ankle (28.5%) and caused by player contact (59.2%). The lower extremity injury rate increased in 2012-2013 to 2014-2015 compared with 2009-2010 to 2011-2012 (23.55 vs 20.45/1000 AEs, respectively; RR, 1.15; 95% CI, 1.06-1.25). This finding was retained when restricted to injuries due to player contact (RR, 1.19; 95% CI, 1.07-1.32) but not for injuries due to noncontact/overuse (RR, 0.96; 95% CI, 0.80-1.14). When examining player contact injury rates by anatomic site, only ankle injuries had an increase (RR, 1.36; 95% CI, 1.13-1.64). The SRC rate also increased in 2012-2013 to 2014-2015 compared with 2009-2010 to 2011-2012 (3.52 vs 2.63/1000 AEs, respectively; RR, 1.34; 95% CI, 1.08-1.66). Conclusion: The lower extremity injury rate has increased in NCAA football athletes. Similarly, SRC rates have increased, although this may be caused by concurrent policies related to better education, identification, and management. Targeting rule changes may be contributing to increased rates of player contact\textendashrelated ankle injuries. Alongside continued surveillance research to examine longitudinal time trends, more in-depth individual-level examinations of how targeting rule changes influence coaching and player behaviors are warranted. ABSTRACT FROM AUTHOR},
keywords = {*ANKLE wounds, *BRAIN -- Concussion, *COLLEGE athletes, *COLLEGE sports, *EPIDEMIOLOGY, *FOOTBALL injuries, *KNEE -- Wounds \& injuries, *LEG -- Wounds \& injuries, *PREVENTION, *SPORTS -- Societies, ankle injury, Concussion, CONFIDENCE intervals, DATA analysis -- Software, DESCRIPTIVE statistics, etc., football, IOWA, knee, LONGITUDINAL method, ODDS ratio, RESEARCH, RESEARCH -- Finance, RESEARCH -- Methodology, rule change, UNITED States},
pubstate = {published},
tppubtype = {article}
}
Jae-Ok, K; Voaklander, D
Effects of Competition Rule Changes on the Incidence of Head Kicks and Possible Concussions in Taekwondo Journal Article
In: Clinical Journal of Sport Medicine, vol. 26, no. 3, pp. 239–244, 2016.
@article{Jae-Ok2016,
title = {Effects of Competition Rule Changes on the Incidence of Head Kicks and Possible Concussions in Taekwondo},
author = {Jae-Ok, K and Voaklander, D},
doi = {10.1097/JSM.0000000000000244},
year = {2016},
date = {2016-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {26},
number = {3},
pages = {239--244},
abstract = {Objective: Competition rules related to head kicks (HKs) in sparing-taekwondo (S-TKD) were changed in 2009, resulting in more points awarded to the head attacker. The objective of this research is to measure the incidence of HKs and to analyze the characteristics of situations leading up to and after HKs in a postrule change competition. Design: Descriptive epidemiology study using video analysis. Setting: The final matches of the World Taekwondo Championships (WTCs) in 2011 and 2013. Participants: A total of 1760 athletes participated in both WTCs. Sixty-four athletes, who had won elimination-round matches and were 15 years or older, competed in final matches. Main Outcome Measures: The final matches - a total of 64 matches including 95 rounds - were analyzed using an anatomical and outcome coding scheme for HKs. Results: Overall, a total of 30 athletes experienced receiving one or more HKs during 2 WTCs (469 HKs per 1000 athlete-exposures (A-E), 95% confidence interval = 296, 642). Female athletes showed higher incidences of HKs than male. A trend of increasing incidence of HKs was observed in the females. The HKs occurred more frequently among competitors in lightweight categories and those of similar height (49%). Conclusions: Overall, the frequency of HKs seems to have increased compared with matches before 2009. A sharp increase in the numbers of HKs is evident among the elite female athletes. To prevent receiving an HK, updated game strategies such as training for blocking skills, and safety guidelines for HKs, or revisions to rules are needed. Clinical Relevance: The recent changes to competition rules promoting the use of HKs may have resulted in an increasing frequency of HKs compared with research findings before these changes. Multiple HKs occur frequently in S-TKD; care needs to be taken to avoid possible acute/chronic consequences. Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Westermann, Robert W; Kerr, Zachary Y; Wehr, Peter; Amendola, Annuziato
Increasing Lower Extremity Injury Rates Across the 2009-2010 to 2014-2015 Seasons of National Collegiate Athletic Association Football Journal Article
In: American Journal of Sports Medicine, vol. 44, no. 12, pp. 3230–3236, 2016, ISBN: 03635465.
@article{Westermann2016,
title = {Increasing Lower Extremity Injury Rates Across the 2009-2010 to 2014-2015 Seasons of National Collegiate Athletic Association Football},
author = {Westermann, Robert W and Kerr, Zachary Y and Wehr, Peter and Amendola, Annuziato},
isbn = {03635465},
year = {2016},
date = {2016-01-01},
journal = {American Journal of Sports Medicine},
volume = {44},
number = {12},
pages = {3230--3236},
abstract = {Background: Sports-related concussions (SRCs) have gained increased societal interest in the past decade. The National Collegiate Athletic Association (NCAA) has implemented legislation and rule changes to decrease the incidence and risk of head injury impacts. The “targeting” rule forbids initiating contact with the crown of a helmet and targeting defenseless players in the head and neck area; however, there are concerns that this rule change has unintentionally led to an increased incidence of lower extremity injuries. Purpose/Hypothesis: The purpose of this study was to evaluate the change in lower extremity injury rates in NCAA football during the 2009-2010 to 2014-2015 seasons. We hypothesized that the lower extremity injury rate has increased across the time period. Study Design: Descriptive epidemiology study. Methods: Sixty-eight NCAA football programs provided 153 team-seasons of data to the NCAA Injury Surveillance Program. Lower extremity injuries (ie, hip/groin, upper leg/thigh, knee, lower leg/Achilles, foot/toes) and SRCs sustained during NCAA football games were examined. We calculated injury rates per 1000 athlete-exposures (AEs) for lower extremity injuries and SRCs. Rate ratios (RRs) compared injury rates between the 2009-2010 to 2011-2012 and 2012-2013 to 2014-2015 seasons. Results: Overall, 2400 lower extremity injuries were reported during the 2009-2010 to 2014-2015 seasons; most were to the knee (33.6%) and ankle (28.5%) and caused by player contact (59.2%). The lower extremity injury rate increased in 2012-2013 to 2014-2015 compared with 2009-2010 to 2011-2012 (23.55 vs 20.45/1000 AEs, respectively; RR, 1.15; 95% CI, 1.06-1.25). This finding was retained when restricted to injuries due to player contact (RR, 1.19; 95% CI, 1.07-1.32) but not for injuries due to noncontact/overuse (RR, 0.96; 95% CI, 0.80-1.14). When examining player contact injury rates by anatomic site, only ankle injuries had an increase (RR, 1.36; 95% CI, 1.13-1.64). The SRC rate also increased in 2012-2013 to 2014-2015 compared with 2009-2010 to 2011-2012 (3.52 vs 2.63/1000 AEs, respectively; RR, 1.34; 95% CI, 1.08-1.66). Conclusion: The lower extremity injury rate has increased in NCAA football athletes. Similarly, SRC rates have increased, although this may be caused by concurrent policies related to better education, identification, and management. Targeting rule changes may be contributing to increased rates of player contact\textendashrelated ankle injuries. Alongside continued surveillance research to examine longitudinal time trends, more in-depth individual-level examinations of how targeting rule changes influence coaching and player behaviors are warranted. ABSTRACT FROM AUTHOR},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jae-Ok, K; Voaklander, D
Effects of Competition Rule Changes on the Incidence of Head Kicks and Possible Concussions in Taekwondo Journal Article
In: Clinical Journal of Sport Medicine, vol. 26, no. 3, pp. 239–244, 2016.
Abstract | Links | BibTeX | Tags: Concussion, head injury, rule change, taekwondo
@article{Jae-Ok2016,
title = {Effects of Competition Rule Changes on the Incidence of Head Kicks and Possible Concussions in Taekwondo},
author = {Jae-Ok, K and Voaklander, D},
doi = {10.1097/JSM.0000000000000244},
year = {2016},
date = {2016-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {26},
number = {3},
pages = {239--244},
abstract = {Objective: Competition rules related to head kicks (HKs) in sparing-taekwondo (S-TKD) were changed in 2009, resulting in more points awarded to the head attacker. The objective of this research is to measure the incidence of HKs and to analyze the characteristics of situations leading up to and after HKs in a postrule change competition. Design: Descriptive epidemiology study using video analysis. Setting: The final matches of the World Taekwondo Championships (WTCs) in 2011 and 2013. Participants: A total of 1760 athletes participated in both WTCs. Sixty-four athletes, who had won elimination-round matches and were 15 years or older, competed in final matches. Main Outcome Measures: The final matches - a total of 64 matches including 95 rounds - were analyzed using an anatomical and outcome coding scheme for HKs. Results: Overall, a total of 30 athletes experienced receiving one or more HKs during 2 WTCs (469 HKs per 1000 athlete-exposures (A-E), 95% confidence interval = 296, 642). Female athletes showed higher incidences of HKs than male. A trend of increasing incidence of HKs was observed in the females. The HKs occurred more frequently among competitors in lightweight categories and those of similar height (49%). Conclusions: Overall, the frequency of HKs seems to have increased compared with matches before 2009. A sharp increase in the numbers of HKs is evident among the elite female athletes. To prevent receiving an HK, updated game strategies such as training for blocking skills, and safety guidelines for HKs, or revisions to rules are needed. Clinical Relevance: The recent changes to competition rules promoting the use of HKs may have resulted in an increasing frequency of HKs compared with research findings before these changes. Multiple HKs occur frequently in S-TKD; care needs to be taken to avoid possible acute/chronic consequences. Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved.},
keywords = {Concussion, head injury, rule change, taekwondo},
pubstate = {published},
tppubtype = {article}
}
Westermann, Robert W; Kerr, Zachary Y; Wehr, Peter; Amendola, Annuziato
Increasing Lower Extremity Injury Rates Across the 2009-2010 to 2014-2015 Seasons of National Collegiate Athletic Association Football Journal Article
In: American Journal of Sports Medicine, vol. 44, no. 12, pp. 3230–3236, 2016, ISBN: 03635465.
Abstract | BibTeX | Tags: *ANKLE wounds, *BRAIN -- Concussion, *COLLEGE athletes, *COLLEGE sports, *EPIDEMIOLOGY, *FOOTBALL injuries, *KNEE -- Wounds & injuries, *LEG -- Wounds & injuries, *PREVENTION, *SPORTS -- Societies, ankle injury, Concussion, CONFIDENCE intervals, DATA analysis -- Software, DESCRIPTIVE statistics, etc., football, IOWA, knee, LONGITUDINAL method, ODDS ratio, RESEARCH, RESEARCH -- Finance, RESEARCH -- Methodology, rule change, UNITED States
@article{Westermann2016,
title = {Increasing Lower Extremity Injury Rates Across the 2009-2010 to 2014-2015 Seasons of National Collegiate Athletic Association Football},
author = {Westermann, Robert W and Kerr, Zachary Y and Wehr, Peter and Amendola, Annuziato},
isbn = {03635465},
year = {2016},
date = {2016-01-01},
journal = {American Journal of Sports Medicine},
volume = {44},
number = {12},
pages = {3230--3236},
abstract = {Background: Sports-related concussions (SRCs) have gained increased societal interest in the past decade. The National Collegiate Athletic Association (NCAA) has implemented legislation and rule changes to decrease the incidence and risk of head injury impacts. The “targeting” rule forbids initiating contact with the crown of a helmet and targeting defenseless players in the head and neck area; however, there are concerns that this rule change has unintentionally led to an increased incidence of lower extremity injuries. Purpose/Hypothesis: The purpose of this study was to evaluate the change in lower extremity injury rates in NCAA football during the 2009-2010 to 2014-2015 seasons. We hypothesized that the lower extremity injury rate has increased across the time period. Study Design: Descriptive epidemiology study. Methods: Sixty-eight NCAA football programs provided 153 team-seasons of data to the NCAA Injury Surveillance Program. Lower extremity injuries (ie, hip/groin, upper leg/thigh, knee, lower leg/Achilles, foot/toes) and SRCs sustained during NCAA football games were examined. We calculated injury rates per 1000 athlete-exposures (AEs) for lower extremity injuries and SRCs. Rate ratios (RRs) compared injury rates between the 2009-2010 to 2011-2012 and 2012-2013 to 2014-2015 seasons. Results: Overall, 2400 lower extremity injuries were reported during the 2009-2010 to 2014-2015 seasons; most were to the knee (33.6%) and ankle (28.5%) and caused by player contact (59.2%). The lower extremity injury rate increased in 2012-2013 to 2014-2015 compared with 2009-2010 to 2011-2012 (23.55 vs 20.45/1000 AEs, respectively; RR, 1.15; 95% CI, 1.06-1.25). This finding was retained when restricted to injuries due to player contact (RR, 1.19; 95% CI, 1.07-1.32) but not for injuries due to noncontact/overuse (RR, 0.96; 95% CI, 0.80-1.14). When examining player contact injury rates by anatomic site, only ankle injuries had an increase (RR, 1.36; 95% CI, 1.13-1.64). The SRC rate also increased in 2012-2013 to 2014-2015 compared with 2009-2010 to 2011-2012 (3.52 vs 2.63/1000 AEs, respectively; RR, 1.34; 95% CI, 1.08-1.66). Conclusion: The lower extremity injury rate has increased in NCAA football athletes. Similarly, SRC rates have increased, although this may be caused by concurrent policies related to better education, identification, and management. Targeting rule changes may be contributing to increased rates of player contact\textendashrelated ankle injuries. Alongside continued surveillance research to examine longitudinal time trends, more in-depth individual-level examinations of how targeting rule changes influence coaching and player behaviors are warranted. ABSTRACT FROM AUTHOR},
keywords = {*ANKLE wounds, *BRAIN -- Concussion, *COLLEGE athletes, *COLLEGE sports, *EPIDEMIOLOGY, *FOOTBALL injuries, *KNEE -- Wounds \& injuries, *LEG -- Wounds \& injuries, *PREVENTION, *SPORTS -- Societies, ankle injury, Concussion, CONFIDENCE intervals, DATA analysis -- Software, DESCRIPTIVE statistics, etc., football, IOWA, knee, LONGITUDINAL method, ODDS ratio, RESEARCH, RESEARCH -- Finance, RESEARCH -- Methodology, rule change, UNITED States},
pubstate = {published},
tppubtype = {article}
}