Lisfranc injury: Prevalence and maintaining a high index of suspicion for optimal evaluation.

Objectives: To quantify the long-term prevalence of game-related Lisfranc trauma in college football on artificial turf and natural grass.

Methods: 32 universities were evaluated over 10 competitive seasons across all Football Bowl Subdivision (FBS) conferences. Outcomes of interest included injury severity, injury category, primary type of injury, player and skill position, injury mechanism and situation, elective imaging and surgical procedures, and field conditions.

Surface-Related High School Football Game Injuries on Pad and No-Pad Fields.

Background: Artificial turf fields are increasingly being installed with lighter weight infill systems that incorporate a pad underlayer, which is reported to reduce surface shock and decrease injuries. At this time, the effects of a pad underlayer on football trauma are unknown.

Hypothesis: Athletes would not experience differences in surface-related injuries between pad and no-pad fields.

Blood lactate and rectal temperature can predict exit velocity of beef feedlot steers.

Interest in beef cattle temperament has increased due to growing consumer awareness of animal welfare and increased concern for handler safety. Temperament measures are based on behavioral responses to a perceived stressor. Subjective chute scoring has been used to give a numeric value to temperament; however, the subjectivity and variability among observers have been questioned.

Incidence, Mechanisms, and Severity of Game-Related High School Football Injuries Across Artificial Turf Systems of Various Infill Weights.

Background: Artificial turf surfaces are developed to duplicate playing characteristics of natural grass. With the newer generations of sand and rubber infill systems, the infill is a common component that varies between fields and is a critical factor that could influence the player-surface interaction. Because the influence of infill weight on sport trauma is unknown, this study quantified football trauma in high schools in the United States across artificial turf systems of various infill weights.

Incidence, Mechanisms, and Severity of Match-Related Collegiate Men's Soccer Injuries on FieldTurf and Natural Grass Surfaces: A 6-Year Prospective Study.

Background: Numerous injuries have been attributed to playing on artificial turf. More recently, newer generations of artificial turf have been developed to duplicate the playing characteristics of natural grass. Although artificial turf has been deemed safer than natural grass in some studies, few long-term studies have been conducted comparing match-related collegiate soccer injuries between the 2 playing surfaces.

Pain-Coping Traits of Nontraditional Women Athletes: Relevance to Optimal Treatment and Rehabilitation.

Context: The primary goal of traditional treatment and rehabilitation programs is to safely return athletes to full functional capacity. Nontraditional activities such as rock climbing or rodeo are typically less training structured and coach structured; individualism, self-determination, and autonomy are more prevalent than observed in athletes in National Collegiate Athletic Association (NCAA)-sponsored sports. The limited research available on nontraditional athletes has provided the athletic trainer little insight into the coping skills and adaptations to stressors that these athletes may bring into the clinical setting, especially among the growing number of women participating in these types of activities.

Skateboarding injuries: An updated review.

This in-depth literature review shows that skateboarding has experienced intermittent periods of popularity, with an estimated 6-15 million skateboarders in the US currently involved at all levels of recreational play and competition. Head trauma accounts for ∼ 3.5-13.

Incidence, mechanisms, and severity of match-related collegiate women's soccer injuries on FieldTurf and natural grass surfaces: a 5-year prospective study.

Background: Numerous injuries have been attributed to playing on artificial turf. Over the past 2 decades, however, newer generations of synthetic turf have been developed to duplicate the playing characteristics of natural grass. Although synthetic turf has been determined to be safer than natural grass in some studies, few long-term studies have been conducted comparing match-related collegiate soccer injuries between the 2 playing surfaces.

Comparing the validity of 2 physical activity questionnaire formats in African-American and Hispanic women.

Background: The purpose of this study was to compare the validity of 2 physical activity questionnaire formats--one that lists activities (Checklist questionnaire) and one that assesses overall activities (Global questionnaire) by domain.

Methods: Two questionnaire formats were validated among 260 African-American and Hispanic women (age 40-70) using 3 validation standards: 1) accelerometers to validate activities of ambulation; 2) diaries to validate physical activity domains (occupation, household, exercise, yard, family, volunteer/church work, and transportation); and 3) doubly-labeled water to validate physical activity energy expenditure (DLW-PAEE).

Results: The proportion of total variance explained by the Checklist questionnaire was 38.

The rodeo athlete: injuries - Part II.

A previous instalment to this review focused on the sport science for rodeo, the history behind the sport and what is currently known about the physical and physiological status, coronary risk profile, strength and power levels, event-specific kinesiological and biomechanical aspects, nutritional habits and psychological indices associated with the rodeo athlete. In regards to injury, rodeo is well known for its high-velocity, high-impact atmosphere where athletes compete against the clock and uncooperative livestock. Considered by many to be a dangerous sport with high vulnerability towards trauma and frequent injuries, animal/human contact events comprise ∼80% of reported injuries.

The rodeo athlete: sport science: part I.

Based on the tradition, history and lore of the American West, as well as the individualistic nature and lifestyle of the sport of rodeo, the rodeo athlete has achieved iconic status in sport, literature, art and entertainment. For over half a century, rodeo has become a staple of organized sport programmes in high schools, universities and international competitions. The origins of rodeo grew from ranch work dating back to the Spanish vaqueros in the 1700s.

Incidence, mechanisms, and severity of game-related college football injuries on FieldTurf versus natural grass: a 3-year prospective study.

Background: Numerous injuries have been attributed to playing on artificial turf. More recently, FieldTurf was developed to duplicate the playing characteristics of natural grass. No long-term studies have been conducted comparing game-related collegiate football injuries between the 2 playing surfaces.

Mountain biking injuries in children and adolescents.

Over the last decade, the sport of mountain biking has experienced extensive growth in youth participation. Due to the unpredictable nature of outdoor sport, a lack of rider awareness and increased participation, the number of injuries has unnecessarily increased. Many believe that the actual incidence of trauma in this sport is underestimated and is just the 'tip of the iceberg'.

Validity of the VmaxST portable metabolic measurement system.

The aim of this study was to assess and compare the validity of the portable VmaxST telemetry metabolic measurement device with that of a standard measurement system (Vmax29). Thirty asymptomatic, moderately active males provided written, informed consent and completed two maximal graded treadmill exercise tests (Bruce) using the VmaxST and the Vmax29 metabolic measurement systems. Tests were performed in random order on separate days to obtain peak values for time to exhaustion, heart rate, systolic and diastolic blood pressure, oxygen consumption (VO2), carbon dioxide production (VCO2), ventilation (VE), and respiratory exchange ratio (RER).

Downhill ski injuries in children and adolescents.

Downhill skiing is considered to be an enjoyable activity for children and adolescents, but it is not without its risks and injuries. Injury rates now range between 3.9 and 9.

Cross-validation of the 20- versus 30-s Wingate anaerobic test.

The 30-s Wingate anaerobic test (30-WAT) is the most widely accepted protocol for measuring anaerobic response, despite documented physical side effects. Abbreviation of the 30-WAT without loss of data could enhance subject compliance while maintaining test applicability. The intent of this study was to quantify the validity of the 20-s Wingate anaerobic test (20-WAT) versus the traditional 30-WAT.

Effect of equitation training on health and physical fitness of college females.

Limited information exists concerning equitation as a viable form of physical activity. The study's purpose was to quantify effects of an equitation training program on health and physical fitness of college females. Following written informed consent, 15 college females enrolled in equitation and 10 controls (age = 23.

Incidence, causes, and severity of high school football injuries on FieldTurf versus natural grass: a 5-year prospective study.

Background: Numerous injuries have been attributed to playing on artificial turf. Recently, FieldTurf was developed to duplicate the playing characteristics of natural grass. No long-term study has been conducted comparing game-related, high school football injuries between the 2 playing surfaces.

Physiological and sport-specific skill response of olympic youth soccer athletes.

Although many studies have been focused on soccer athletes, no comprehensive studies have been conducted on adolescent soccer athletes in the United States. Therefore, the purpose of this study was to quantify the physiological and sport-specific skill characteristics of Olympic Developmental Program (ODP) soccer athletes by age group and game experience. Following written, informed consent, 59 male athletes (age = 14.

Influence of body composition on physical activity validation studies using doubly labeled water.

This study investigated the influence of two approaches (mathematical transformation and statistical procedures), used to account for body composition [body mass or fat-free mass (FFM)], on associations between two measures of physical activity and energy expenditure determined by doubly labeled water (DLW). Complete data for these analyses were available for 136 African American (44.1%) and Hispanic (55.

Radiographic findings of the upper extremity in collegiate rodeo athletes.

Introduction And Purpose: Upper-extremity trauma has been extensively studied in traditional sports to reduce predisposition to injury. Limited attention has been directed toward nontraditional, high-collision sports such as rodeo. Therefore, the purpose of this study was to quantify radiographic changes of the upper extremity in collegiate rodeo athletes after seasonal competition.

Efficacy of stairclimber versus cycle ergometry in postoperative anterior cruciate ligament rehabilitation.

Objective: To examine the effective use of stair climbing as an alternative to cycling for knee rehabilitation in an actual injured sport population.

Design: Repeated-measures multivariate analyses with data collected during anterior cruciate ligament (ACL) rehabilitation.

Setting: Clinical rehabilitation setting following ACL reconstruction.