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PubMedDate not supplied

Fractures and refractures in intercollegiate athletes. An eleven-year experience.

This report on fractures and refractures in intercollegiate athletes covers an 11-year period from the early Fall of 1968 through the Spring of 1979. Two hundred thirty-one fractures occurred in 219 athletes. Of these athletes, 185 were male and 34 were female. Fractures occurred in 18 sports. Of these 18, football, basketball, wrestling, and soccer led in number for Men's (M) teams, and gymnastics, lacrosse, and volleyball led for Ladies' (L) teams. (Because of this institution's early involvement with Title IX, and the strong position taken by our administration, our teams are designated Gentlemen (Men for short), which constitute the LIONS, and Ladies, which make up the LADY LIONS.) No fractures were noted in the other 11 intercollegiate teams of cheerleading (M and L), bowling (M and L), golf (M and L), fencing (L), rifle (coed), tennis (M and L), and volleyball (M). Boxing, ice hockey, rugby, soccer, and synchronized swimming are club sports at the Pennsylvania State University and are not included in this study. The most common of the 17 fracture sites were the finger, hand, face, foot, nose, and leg, regardless of sport or gender. Fourteen of fifteen refractures occurred in collision/contact sports, and essentially the same mechanical forces caused both fractures. In football most fractures occurred during highly successful seasons.

Adult↗
PubMedDate not supplied

Sports and peripheral nerve injury.

Peripheral nerve injury is one of the serious complications of athletic injuries; however, they have rarely been reported. According to the report by Takazawa et al., there were only 28 cases of peripheral nerve injury among 9,550 cases of sports injuries which had been treated in the previous 5 years at the clinic of the Japanese Athletic Association. The authors have encountered 1,167 cases of peripheral nerve injury during the past 18 years. Sixty-six of these cases were related to sports (5.7%). The nerves most frequently involved were: brachial plexus, radial nerve, ulnar, peroneal, and axillary nerves (in their order of frequency). The most common causes of such injuries were mountain climbing, gymnastics, and baseball. More often, peripheral nerve injury seemed to be caused by continuous compression and repeated trauma to the involved nerve. Usually it appeared as an entrapment neuropathy and the symptoms could be improved by conservative treatment. Some of the cases were complicated by fractures and surgical exploration became necessary. Results of treatment produced excellent to good improvement in 87.9% of the cases. With regard to compartment syndrome, the authors stress the importance of early and precise diagnosis and a fasciotomy.

Adolescent↗
PubMedDate not supplied

Sports injuries during one academic year in 6799 Irish school children.

Details of the sports injuries occurring in 6799 children between the ages of 10 and 18 were recorded during the course of one academic year (September to June). One hundred sixteen injuries were noted: 29 sprains, 20 fractures, 18 strains, 14 contusions, 10 wounds, 7 dislocations, and 18 other injuries. On average these injuries resulted in 0.47 days of hospitalization, 18 days of incapacity, and 28 days before full recovery. The activities at which the injuries occurred were: football, 24; athletics, 15; rugby and gymnastics, 11 each; hockey, 10; basketball, 9; hurling and soccer, 8 each; indoor soccer, 5; camogie, 4; swimming, 3; tennis, 1; and others, 7. The rugby and indoor soccer injuries tended to be of above average seriousness. Eighty-eight injuries occurred in males and 28 in females. Males over 14 were three and half times as likely to be injured as younger boys. In girls the incidence of injury dropped after the age of 15. In both sexes the likelihood of injury increased with the physical standing of the individual. In outstanding males over the age of 15 the incidence of injury was one in six. The factors which contributed most frequently to injury were recklessness on the part of the injured party and foul or illegal play by another player. Lack of fitness and defects in sports gear, playing area, and equipment were other common causes.

Adolescent↗
PubMedDate not supplied

Chronic leg pain in athletes due to a recurrent compartment syndrome.

A series of 29 patients, all engaged in sports activity on a regular basis, suffering from recurrent compartmental syndrome, is reported. The syndrome is not restricted only to long distance runners but to athletes involved in a variety of sports activities (soccer, volleyball, cycle racing, gymnastics, judo, physical education, and long distance running). Although most patients presented activity-related leg pain, some patients mainly complained of ankle weakness and recurrent ankle distortions at fatigue. The wick catheter technique proved to be most useful to determine which compartments were involved. The severity of clinical symptoms correlated highly with the anomalies of the tissue pressure measurements. The predominance of deep posterior compartment and multiple compartment involvement are in contrast with most previous reports. Conservative treatment was unsuccessful in every patient, whereas surgical decompression of the involved compartments yielded favorable results in those cases where all the involved compartments were released.

Adult↗
PubMedDate not supplied

Stress fracture of the ribs in female rowers.

Stress fractures of the lower ribs related to sports are rare. Fractures of the ribs related to rowing sports have not been reported. We have documented seven cases of stress fractures of the lower ribs in female athletes; four were elite rowers and three were engaged in tennis, golf, and gymnastics. Each athlete was initially seen and treated elsewhere for muscular strain. All athletes presented with pain in the posterolateral thorax in and around the scapula. The time from onset of symptoms to diagnosis ranged from 2 to 6 months. Bone scans were used to document the fractures when roentgenograms were equivocal. Each athlete responded to a 4 to 8 week period of rest or training modification. Biomechanical analysis of the forces across the ribs demonstrates that these fractures tend to occur along the posterolateral segment where the bending stresses on the rib are greatest. The predominant muscle forces are generated by the forced couple of scapular retraction and protraction acting through the serratus anterior. We postulate that inadequate strength and resistance training background in women is the cause for the apparent increased susceptibility of women to these skeletal injuries.

Adult↗
PubMedDate not supplied

Lumbar mobility and low back pain during adolescence. A longitudinal three-year follow-up study in athletes and controls.

In this 3-year longitudinal study, we studied lumbar mobility and the occurrence of low back pain among 98 adolescents who were free of previous severe low back pain: 33 nonathletes (16 boys, 17 girls), 34 boy athletes (ice hockey and soccer players) and 31 girl athletes (figure skaters and gymnasts). During the followup, low back pain lasting longer than 1 week was reported by 29 athletes (15 boys and 14 girls) and by 6 nonathletes (3 boys and 3 girls). In multivariate analyses, participation in sports and low maximal lumbar flexion at the baseline predicted low back pain during the followup among boys; however, these factors accounted for only 16% of the variability between the groups with and without low back pain. Among girls, decreased range of motion in the lower lumbar segments, low maximal lumbar extension, and high body weight at the baseline were predictive of low back pain during the followup, accounting for 31% of the variability between the groups. The girls in the lowest tertile of maximal lumbar extension at baseline had a relative risk of 3.4 to have future low back pain compared with those in the highest tertile. We conclude that the low individual physiologic maximum of lower segment lumbar extension mobility may cause overloading of the low back among athletes involved in sports with frequent maximal lumbar extension and that it predicts future low back pain.

Adolescent↗
PubMed1998

Prevalent knee pain and sport.

STUDY OBJECTIVE: To estimate the prevalence of knee pain in active athletes and to investigate potential associations to type, amount and duration of sports participation. MEASUREMENTS: 339 athletes gave information about occupation, sports activity and different features of knee pain, based on a self-filled questionnaire. MAIN RESULTS: The prevalence of knee pain within the preceding 12 months, constant or recurrent knee pain, absence from sport and absence from work due to knee pain, was 54%, 34%, 19% and 4%, respectively. Knee pain was positively associated with years of jogging and with weekly hours of participation in competitive gymnastics but negatively with weekly hours of tennis. Constant or recurrent knee pain was positively associated with years of swimming. Absence from sport due to knee pain was positively associated with weekly hours of soccer participation. CONCLUSIONS: Knee pain is a common symptom in athletes. The prevalence is associated with the type, amount and duration of sports participation.

Adolescent↗
PubMed2006

The muscle--fat duel or why obese children are taller?

BACKGROUND: Obesity the epidemic of our times appears to be a problem that is easy to resolve: just eat less and move more. However, this very common condition has turned out to be extremely troublesome, and in some cases even irreversible. METHODS: The interplay between less muscle and more fat tissue is discussed from physiological perspectives with an emphasis on the early years of childhood. RESULTS: It is suggested that the coordinated muscle-fat interactions lead to a fluctuating exchange economy rate. This bodily economic decision, slides between thrift (more fat) and prodigal (more muscle) strategies. The thrift strategy results not only in obesity and less physical activity but also in other maladies which the body is unable to manage. What leads to obesity (less muscle, more fat) might be very difficult to reverse at adulthood, prevention at childhood is thus recommended. CONCLUSION: Early recognition of the ailment (low muscle mass) is crucial. Based on studies demonstrating a 'rivalry' between muscle build-up and height growth at childhood, it is postulated that among the both taller and more obese children the percentage of children with lower muscle mass will be higher. A special, body/muscle-building gymnastics program for children is suggested as a potential early intervention to prevent the ill progress of obesity.

Adipose Tissue↗
PubMed1990

Catastrophic injuries and fatalities in high school and college sports, fall 1982-spring 1988.

Direct and indirect deaths and catastrophic injuries, defined as any injury incurred during participation in a high school/college sponsored sport in which there is permanent severe functional neurological disability (nonfatal) or transient but not permanent functional neurologic disability (serious), are presented for all sports during the period of fall 1982 to spring 1988. Football contributed the greatest numbers of catastrophic injuries but also had the largest number of participants. Ice hockey, gymnastics, and wrestling are the other sports where participants are at greatest risk of catastrophic injury or death. Mechanisms of injury in each sport and corrective actions are identified and discussed. While high school and college catastrophic injuries may never be totally eliminated, they can be dramatically reduced by reliable injury data collection and analysis.

Adolescent↗
PubMed2004

Epilepsy and sports participation.

Epilepsy is a common disease found in 2% of the population, affecting both young and old. Unfortunately, epileptics have previously been discouraged from participation in physical activity and sports for fear of inducing seizures or increasing seizure frequency. Despite a shift in medical recommendations toward encouraging rather than restricting participation, the stigma remains and epileptics continue to be less active than the general population. This results in increased body mass index, decreased aerobic endurance, poorer self-esteem, and higher levels of anxiety and depression. Although there are rare cases of exercise-induced seizures, studies have shown that physical activity can decrease seizure frequency, as well as lead to improved cardiovascular and psychologic health. The majority of sports are safe for epileptics to participate in with special attention to adequate seizure control, close monitoring of medications, and preparation of family, coaches, or trainers. Contact sports including football, hockey, and soccer have not been shown to induce seizures, and epileptics should not be precluded from participation. Water sports and swimming are felt to be safe if seizures are well controlled and direct supervision is present. Additional care must be taken in sports involving heights such as gymnastics, harnessed rock climbing, or horseback riding. Sports such as hang-gliding, scuba diving, or free climbing are not recommended, given the risk of severe injury or death, if a seizure were to occur during the activity. This article reviews the risks and benefits of physical activity in epileptics, discusses sports in which epileptics may participate, and addresses how to decrease possible risks for injury.

Athletic Injuries↗
PubMed2005

Limb muscle dysfunction in COPD: effects of muscle wasting and exercise training.

PURPOSE: Lower-limb muscle weakness has often been reported in COPD, and contributes to exercise intolerance. Controversial information is available regarding upper-limb muscle adaptations and the influence of muscle wasting on muscle weakness. We investigated leg and arm muscle function in 59 stable COPD patients (GOLD stage III) with preserved fat-free mass (FFM) and in 28 patients with reduced FFM relative to age- and sex-matched healthy control subjects and studied the effects of 8 wk of whole-body exercise training. METHODS: FFM was measured with bioelectrical impedance analysis. Isokinetic quadriceps (F-leg) and biceps strength (F-arm), as well as quadriceps (E-leg) and biceps endurance (E-arm) were determined with a Biodex dynamometer. Exercise training consisted of cycle ergometry, treadmill walking, weight training, and gymnastics during 5 d.wk. RESULTS: F-leg (76.2 +/- 3.6 vs 118.2 +/- 6.3 N.m, P < 0.001) and F-arm (25.6 +/- 1.3 vs 38.1 +/- 2.1 N.m, P < 0.001) were significantly and similarly reduced in the COPD patient group compared with controls. Also, E-leg (-2.13 +/- 0.12 vs -1.61 +/- 0.11, P < 0.01), but not E-arm (-2.72 +/- 0.11 and -2.47 +/- 0.13 NS), was decreased in patients. F-leg (62.4 +/- 4.3 vs 82.8 +/- 4.7 N.m, P < 0.01), but not F-arm or muscle endurance, was reduced in FFM-depleted compared with non-FFM-depleted patients. Whereas after training F-leg and E-leg significantly increased by 20% in the whole COPD group, biceps muscle function remained unchanged. CONCLUSION: Lower- and upper-limb muscle dysfunction was observed in COPD patients, irrespective of the presence of FFM depletion. Generalized muscle weakness suggests systemic muscular involvement, although the preserved arm endurance and the poor response of arm performance to exercise training is indicative for intrinsic differences in muscular adaptations between leg and arm muscles.

Case-Control Studies↗
PubMed2004

[Mechanical stretching inhibits adipocyte differentiation of 3T3-L1 cells: the molecular mechanism and pharmacological regulation].

Obesity frequently promotes a variety of cardiovascular diseases including atherosclerosis, hypertension, and type 2 diabetes. In a view of both the preventive and therapeutic aspects of the abovementioned diseases, most intensive clinical interventions have been primarily directed at decreasing excessive amounts of fat tissue by a change in the balance between intake and expenditure of energy; such changes are typically effected via daily exercise and diet control. Mechanical stimuli such as stretching and rubbing of fat tissues using gymnastic exercises or massage are believed to decrease obesity; however, there is no report concerning the direct effect of the mechanical stimulation on adipocytes. Here, we demonstrated that cyclic stretch inhibited adipocyte differentiation of mouse 3T3-L1 cells, which was attributable to a reduced expression of adipogenic transcription factor peroxisome proliferator-activated receptor (PPAR)gamma(2) via the activation of an extracellular signal-regulated protein kinase (ERK) pathway. The inhibitory effect of the cyclic stretching on the differentiation of 3T3-L1 cells could be restored by troglitazone, a synthetic ligand for PPARgamma. Our results provide a molecular basis for the physiological significance of the local application of mechanical stimuli to fat tissues, which is totally independent of a mechanism for systemic energy consumption.

3T3-L1 Cells↗
PubMed2004

Effects of whole-body exercise training on body composition and functional capacity in normal-weight patients with COPD.

BACKGROUND: Skeletal muscle wasting is related to muscle dysfunction, exercise intolerance, and increased mortality risk in patients with COPD. STUDY OBJECTIVES: The aims of this study were to investigate the effects of whole-body exercise training on body composition in normal-weight patients with COPD, and to study the relationship between changes in body composition and functional capacity. SETTING AND PARTICIPANTS: Fifty patients with COPD (FEV(1), 39% of predicted [SD, 16]) admitted to the pulmonary rehabilitation center at Hornerheide, and 36 healthy age-matched control subjects (for baseline comparison) were included. INTERVENTIONS: Patients participated in a standardized inpatient exercise training program consisting of daily submaximal cycle ergometry, treadmill walking, weight training, and gymnastics during 8 weeks. MEASUREMENTS: Fat-free mass (FFM) was measured by bioelectrical impedance analysis. None of the patients met the criteria for nutritional supplementation (body mass index </= 21, or FFM index </= 15 kg/m(2) in women and </= 16 kg/m(2) in men). Exercise capacity was measured using incremental cycle ergometry. Isokinetic quadriceps strength was measured with a Biodex dynamometer (Biodex Medical Corporation; Shirley, NY). RESULTS: At baseline, patients were characterized by a significantly lower FFM than the control subjects. Age and FFM were independent predictors of skeletal muscle function and exercise capacity in patients. After rehabilitation, weight (72.4 +/- 9.8 to 73.0 +/- 9.4 kg, p < 0.05) significantly increased, as a result of increased FFM (52.4 +/- 7.3 to 53.4 +/- 7.7 kg, p < 0.05), while fat mass (20.0 +/- 6.1 to 19.6 +/- 5.7 kg) tended to decrease. Peak work rate (63 +/- 29 to 84 +/- 42 W, p < 0.001), maximal oxygen consumption (O(2)max) [1,028 +/- 307 to 1,229 +/- 421 mL/min, p < 0.001], and isokinetic quadriceps strength (82.5 +/- 36.4 to 90.3 +/- 34.9 Newton-meters, p < 0.05) all improved. Changes in FFM were proportionally smaller than functional improvements, and were related to changes in O(2)max (r = 0.361, p < 0.05), but not to other changes in functional capacity. CONCLUSIONS: Intensive exercise training per se is able to induce an anabolic response in normal-weight patients with COPD classified into Global Initiative for Chronic Obstructive Lung Disease stages III-IV. Improvements in exercise performance and muscle function are proportionally larger than increases in FFM.

Aged↗
PubMed2006

Iron status of female collegiate athletes involved in different sports.

Iron status was assessed in 70 female athletes aged 18-25 yr participating in collegiate cross-country track, tennis, softball, swimming, soccer, basketball, and gymnastics. No significant differences in mean hemoglobin, hematocrit, serum iron, total iron-binding capacity, transferrin saturation, and ferritin were found among teams. The mean concentrations of each parameter for each of the teams were within the normal ranges. However, several athletes from different sports had suboptimal iron status indexes. Of 17 athletes with a serum ferritin concentration < or = 15 microg/L, 8 (4 freshmen, 2 sophomores, 2 unknown) also exhibited low serum iron concentrations (< 60 microg/dL) and low transferrin saturation (< 16%). Thirteen (6 freshmen, 3 sophomores, 2 juniors, 2 seniors) of 51 (25%) athletes failed to consume two-thirds of the Recommended Dietary Allowance for iron and exhibited suboptimal serum concentrations of ferritin, iron, and/or transferrin saturation. Of nine athletes taking iron supplements, one exhibited suboptimal iron status. In summary, nonanemic iron depletion was present among female collegiate athletes involved in many different sports and in all years of participation (freshmen, sophomore, junior, and senior athletes). Female athletes should continue to be individually and routinely evaluated for nutritional deficiencies throughout their collegiate athletic careers.

Adolescent↗
PubMed2001

Creatine use among young athletes.

OBJECTIVE: Creatine is a nutritional supplement that is purported to be a safe ergogenic aid in adults. Although as many as 28% of collegiate athletes admit taking creatine, there is little information about creatine use or potential health risk in children and adolescents. Although the use of creatine is not recommended in people less than 18 years of age, numerous anecdotal reports indicate widespread use in young athletes. The purpose of this study was to determine the frequency, risk factors, and demographics of creatine use among middle and high school student athletes. METHODS: Before their annual sports preparticipation physical examinations, middle and high school athletes aged 10 to 18 in Westchester County, a suburb north of New York City, were surveyed in a confidential manner. Information was collected regarding school grade, gender, specific sport participation, and creatine use. RESULTS: Overall, 62 of 1103 participants (5.6%) admitted taking creatine. Creatine use was reported in every grade, from 6 to 12. Forty-four percent of grade 12 athletes surveyed reported using creatine. Creatine use was significantly more common (P <.001) among boys (53/604, 8.8%) than girls (9/492, 1.8%). Although creatine was taken by participants in every sport, use was significantly more common among football players, wrestlers, hockey players, gymnasts, and lacrosse players (P <.001 for all). The most common reasons cited for taking creatine were enhanced performance (74.2% of users) and improved appearance (61.3%), and the most common reason cited for not taking creatine was safety (45.7% of nonusers). CONCLUSIONS: Despite current recommendations against use in adolescents less than 18 years old, creatine is being used by middle and high school athletes at all grade levels. The prevalence in grades 11 and 12 approaches levels reported among collegiate athletes. Until the safety of creatine can be established in adolescents, the use of this product should be discouraged.

Adolescent↗
PubMed2004

[Gender and leisure-time physical activity].

This article discusses the relationship between gender and the social construction of the body, specifically focusing on physical exercise during leisure time. The Pró-Saúde Project is a prospective study consisting of 4,030 employees of a university in Rio de Janeiro, in which we analyzed the answers on leisure-time physical activity (LTPA) by 3,740 participants. The results show a prevalence of males in LTPA. Age, schooling, and per capita family income were directly associated with exercise among women, as compared to per capita family among men. Men were more frequently involved in group sports and physical activities that required more strength than women, including football, tennis, volleyball, martial arts, jogging, and weight lifting. Women performed more individual physical activities and those demanding less strength, like walking, dance, gymnastics, and hydrogym. The results suggest that LTPA is a domain of daily life that is organized according to certain conventions, amongst which gender-related conceptions concerning the ideal body, where men and women display distinct behaviors in relation to physical exercise.

Adult↗
PubMed1999

Definition and prevalence of sedentarism in an urban population.

OBJECTIVES: The present study sought to formulate a precise definition of sedentarism and to identify activities performed by active people that could serve as effective preventive goals. METHODS: A population-based sample of 919 residents of Geneva, Switzerland, aged 35 to 74 years, completed a 24-hour recall. Sedentary people were defined as those expending less than 10% of their daily energy in the performance of moderate- and high-intensity activities (at least 4 times the basal metabolism rate). RESULTS: The rates of sedentarism were 79.5% in men and 87.2% in women. Among sedentary and active men, average daily energy expenditures were 2600 kcal (95% confidence interval [CI] = 2552, 2648) and 3226 kcal (95% CI = 3110, 3346), respectively; the corresponding averages for women were 2092 kcal (95% CI = 2064, 2120) and 2356 kcal (95% CI = 2274, 2440). The main moderate- and high-intensity activities among active people were sports (tennis, gymnastics, skiing), walking, climbing stairs, gardening, and (for men only) occupational activities. CONCLUSIONS: The definition of sedentarism outlined in this article can be reproduced in other populations, allows comparisons across studies, and provides preventive guidelines in that the activities most frequently performed by active people are the ones most likely to be adopted by their sedentary peers.

Activities of Daily Living↗
PubMed2004

Low-back pain in athletes.

While most occurrences of low-back pain in athletes are self-limited sprains or strains, persistent, chronic, or recurrent symptoms are frequently associated with degenerative lumbar disc disease or spondylolytic stress lesions. The prevalence of radiographic evidence of disc degeneration is higher in athletes than it is in nonathletes; however, it remains unclear whether this correlates with a higher rate of back pain. Although there is little peer-reviewed clinical information on the subject, it is possible that chronic pain from degenerative disc disease that is recalcitrant after intensive and continuous nonoperative care can be successfully treated with interbody fusion in selected athletes. In general, the prevalence of spondylolysis is not higher in athletes than it is in nonathletes, although participation in sports involving repetitive hyperextension maneuvers, such as gymnastics, wrestling, and diving, appears to be associated with disproportionately higher rates of spondylolysis. Nonoperative treatment of spondylolysis results in successful pain relief in approximately 80% of athletes, independent of radiographic evidence of defect healing. In recalcitrant cases, direct surgical repair of the pars interarticularis with internal fixation and bone-grafting can yield high rates of pain relief in competitive athletes and allow a high percentage to return to play. Sacral stress fractures occur almost exclusively in individuals participating in high-level running sports, such as track or marathon. Treatment includes a brief period of limited weight-bearing followed by progressive mobilization, physical therapy, and return to sports in one to two months, when the pain has resolved.

Athletic Injuries↗