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PubMed2002

Anthropometric characteristics of high level European junior basketball players.

The purpose of the research was to assess anthropometric status of European high-level junior basketball players and to determine anthropometric differences between the players playing in different game positions (guards, forwards, centers). The sample consisted of 132 young basketball players, participants of the European Junior Basketball Championship, Zadar, 2000. Participants were measured with 31 measures (anthropometric variables), on the basis of which two body composition measures (BMI and relative body fat) and somatotype were calculated. The basic statistical parameters were computed. The analysis of variance and discriminant canonical analysis were employed to determine the differences between positions in play. Results indicate that prominent longitudinal and transversal skeletal dimensions as well as circumference measures characterize players on the position of centers, but they do not have significantly larger skinfold measures in relation to forwards. Centers are also predominantly ectomorphic compared with other players. Guards achieved significantly lower values in all spaces and they are predominantly mesomorphic. Further investigations are necessary in order to assess potential changes in status of these parameters when the participants will reach the age of senior players and afterwards, as well as to determine relations between anthropometric status and skill related variables.

Adipose Tissue↗
PubMed2003

[Energy requirements in adolescents playing basketball in Russian Olympic reserve team].

The energy expenditure and requirements and dietary intake were studied in basketball players aged 14-16 years during 3 week-training period. The subjects of study were 14 boys and 18 girls as of the members of reserve of Russian Olympic basketball team. The dietary intake was estimated by dietary record of all food consumed within 24 hours last 7 days of training period. The energy expenditure was estimated by registration of time on different physical activity of team and multiplication on physical activity coefficient. The decrease of body mass and body mass index were observed in boys with height 195 cm and more to the end of training period. These tall boys did not consume enough food to satisfy the estimated energy requirement. It is estimated that energy need of tall basketball players is no less then 5000 kcal for boys and 3100 kcal for girls.

Adolescent↗
PubMed2003

Isokinetic peak torque and hamstring/quadriceps ratios in young basketball players. Effects of age, velocity, and contraction mode.

AIM: The purpose of this study was to provide an extensive isokinetic profile, including peak torque and "functional" and "conventional" muscle group ratios, of basketball players throughout the developmental years 12-17. Furthermore, we investigated the effects of age and angular velocity on peak torque and reciprocal muscle group ratios, and observed the force-velocity pattern. METHODS: Basketball players (n=180) 12 to 17 years. were divided according to their age in 6 equal (n=30) groups aged 12, 13, 14, 15, 16, 17 years. All subjects performed maximum knee extension and flexion efforts at 60 inverted exclamation mark /s and 180 inverted exclamation mark /s angular velocities under eccentric and concentric conditions. The absolute (Nm) peak torque was measured, and the relative peak torque (PT/BW) and "functional" and "conventional" reciprocal muscle group ratio (%) were calculated. RESULTS: PT/BW values of knee flexors ranged from 0.98 to 2.29 Nm/kg and of extensors from 1.53 to 3.69 Nm/kg, across all age, velocity, and muscle action levels. PT/BW was higher at slow speed and during eccentric contraction irrespective of age and angular velocity/muscle action. The results indicated a significant (p<0.05) age-related increase in peak torque independent of changes in BW. The force-velocity patterns were similar across ages. The "functional" and "conventional" ratios were not affected by age, but increased with increase in angular velocity, except the CON(KF)/ECC(KE) ratio that was higher (p<0.05) at slow speed. CONCLUSION: The present study provides an extensive isokinetic profile of a knee joint in basketball players throughout developmental years 12-17. Coaches and physical therapist may use these information when evaluating and planning exercise programs during training and rehabilitation.

Adolescent↗
PubMed2004

Physiological and technical characteristics of elite young basketball players.

AIM: The aim of this study was 2-fold: a) to describe the physiological and technical characteristics of elite young basketball players, and b) to examine the relationship between certain field and laboratory tests among these players. METHODS: Thirteen male players of the junior's Basketball National team (age: 18.5 +/- 0.5 years, mass: 95.5 +/- 8.8 kg, height: 199.5 +/- 6.2 cm, body fat: 11.4 +/- 1.9%, means+/-SD) performed a run to exhaustion on the treadmill, the Wingate test and 2 types of vertical jump. On a separate day, the field tests (control dribble, defensive movement, speed dribble, speed running, shuttle run and dribble shuttle run) were conducted. RESULTS: Maximal oxygen uptake (VO2max) and ventilatory threshold were 51.7 +/- 4.8 ml/kg/min and 77.6 +/- 7.0% VO2max, respectively. Maximum power output was 10.7 +/- 1.3 Watts/kg and mean power (Pmean) 8.0 +/- 0.7 Watts/kg. Counter-movement and squat jump height were 40.1 +/- 3.7 and 39.8 +/- 4.0 cm, respectively. Performance in control dribble (13.70 +/- 0.96 s), speed dribble (4.24 +/- 0.75 s), high intensity shuttle run (27.90 +/- 1.04 s) and dribble shuttle run (29.50 +/- 1.22 s) was correlated with Pmean (r=-0.58, r=-0.62, r=-0.56 and r=-0.73, respectively, p<0.05). Percent body fat was negatively correlated with all the above field tests (r=0.63, r=0.57, r=0.66, r=0.65, respectively, p<0.05). CONCLUSION: These players presented a moderate VO2max and anaerobic power. The significant correlation between Pmean and certain field tests indicates that these tests could be used for the assessment of anaerobic capacity of young basketball players.

Adolescent↗
PubMed2005

Are mouthguards necessary for basketball?

This literature review evaluates the significance of dental injuries and their relationship to a specific sport--basketball. Many studies have been published on individual sports or groups of sports, but most pertain to specific age groups or levels of competition. Research suggests that many sports that do not require mouthguards should encourage male and female participants to use orofacial protectors. Athletes, coaches, athletic directors, athletic trainers, parents, and members of the dental community should be aware of how individuals who participate in sporting activities are at risk for dental trauma. Any sport where the potential for dental trauma can exist, such as basketball, soccer, or wrestling, should consider utilizing mouthguards to protect the competitors. The establishment of mouthguard programs for athletes of all ages and genders who participate in basketball may help to reduce the incidence of dental trauma.

Basketball↗
PubMed2006

[The risk of mitral pathology in marphanoid female basketball players].

UNLABELLED: Recently much research has been done focusing on the problem of athlete's heart as a physiological phenomenon as well as a cause of morbidity or even mortality. The question rises whether pathology discovered in some athletes was primary or developed after professional excessive training program. THE AIM: We studied a group of young female athletes (basketball players) to test the hypothesis that marfanoid habitus, favorable in this sport, could bear predisposition for pathology of the heart. MATERIAL AND METHODS: We studied 38 young female athletes, mean age 15 (+/- 1.8) years, participants of special education program for talented sportsmen from all over Poland. Athletes were included on the basis of outstanding results and participating at least one year in professional basketball. Complete echocardiographic examination was performed according to protocol which included M-mode, 2D and color Doppler. Systolic and diastolic morphologic and functional parameters were assessed and compared to normal values related to the age. RESULTS: Stature of studied athletes exceeded the 95 percentile. There were no significant differences in morphological parameters of the heart. Mitral incompetence (at least II grade) was a common finding in this group (37%). In the group exhibiting marphanoid habitus, mitral incompetence was present in all except one case (89%). CONCLUSIONS: Tall stature being favorable in basketball promotes athletes with marphanoid habitus which have higher risk of mitral incompetence.

Adolescent↗
PubMed2006

Fifth metatarsal stress fractures in elite basketball players: evaluation of forces acting on the fifth metatarsal.

Our hypothesis in this study was that significant forces act on the fifth metatarsal during certain maneuvers commonly performed while playing basketball and that medial arch support influences these forces. Eleven male collegiate basketball players participated in this study. Electronic pressure sensors capable of dynamic readings were inserted into the players' shoes, and surface electromyographic (EMG) electrodes were placed over the peroneus longus and brevis muscles. The players performed 3 common maneuvers postulated to place maximal stress on the fifth metatarsal. The maneuvers were performed in a standard basketball shoe, then in a shoe with an orthosis supporting the arch. During each of these maneuvers, EMG activity of the ankle everters was recorded, along with maximal force, total work, and time elapsed beneath the fifth metatarsal.

Basketball↗
PubMed1991

Anthropometric, body composition and performance variables of young elite female basketball players.

The purpose of the study was to determine the physique and body composition of young female basketball players and to examine these variables in relation to their playing position. Eighteen members of the under seventeen England Basketball squad were measured on twenty different anthropometric sites from which somatotype and body composition were calculated. Four performance measures, vertical jump, anaerobic power, right and left grip strength and laterality were also measured. The variables of the basketball players grouped according to playing position were then compared statistically using ANOVA. Centres had the largest measures of physique and body composition followed by the forwards and then the guards. These differences were significant, particularly between the centres and the guards. The centres were much taller, had longer limb lengths, hip widths and were more muscular.

Adolescent↗
PubMed1990

[Epidemiology of basketball injuries].

The players of an elite basketball team were followed during the course of a season which included 71 games and 250 training sessions. All injuries were noted and were correlated with age, height and other physical parameters of the players, as well as with degree of fatigue during games and during training sessions. The lower extremity was the most common site of injury. Ligamentous injuries of the knee are more common in basketball than in soccer players, but they have fewer meniscal injuries than the latter. However, the upper extremity, especially the hand, is more frequently injured in basketball than in other sports. The age, height and personality of the player affect the injury pattern.

Arm Injuries↗
PubMed1993

Back injuries in basketball players.

The basketball player with lower back or lower extremity radicular pain needs to be carefully evaluated. A complete history of any previous symptomatology and a specific history of the new injury are absolutely essential. A careful physical examination with an understanding of the anatomy as well as possible causes of the lower back pain is crucial. An accurate diagnosis is essential in treating every athlete. Most basketball-related lower back injuries will respond to conservative nonsurgical treatment. Rehabilitation is a cornerstone in not only treating the initial symptoms, but decreasing the risks of reinjury. The goal of returning the basketball player to previous performance level as quickly as possible, with a minimal risk of re-injury, is the goal of the team physicians.

Back Injuries↗
PubMedDate not supplied

The injury rate in professional basketball.

The purpose of this study is to review seven years of medical experience with injuries to players of a professional basketball club. One of the authors was involved with all injuries occurring during this period of time. All 71 athletes participating with this club were evaluated, and their specific injuries were studied with regard to incidence, time loss due to injury, and treatment. Foot, ankle, knee, back, and hand injuries were found to occur most often. The most common as well as the most severe injuries were those of the ankle and knee. The average time loss from play due to injury was amazingly consistent for each specific injury. Rehabilitation of injuries varied from no playing time loss to two years. Even though knee injuries carry a poor prognosis, the authors conclude that the incidence of severe injury in professional basketball is low. This study will hopefully serve as useful information for those involved with the care of basketball players.

Adult↗
PubMed2003

Sex-Related and Age-Related Differences in Knee Strength of Basketball Players Ages 11-17 Years.

OBJECTIVE: To assess hamstrings and quadriceps strength of basketball players ages 11-13 and 15-17 years. DESIGN AND SETTING: This cross-sectional study occurred during the 2000 American Youth Basketball Tour National Tournament. We investigated whether sex- or age-related strength differences existed among study participants. SUBJECTS: Forty-one tournament participants (22 girls, 19 boys; 11-13 or 15-17 years old) who reported no history of knee sprain or surgery were recruited. MEASUREMENTS: We used a Cybex II dynamometer to obtain isokinetic concentric peak torques relative to body mass (Nm/kg) at 60 degrees /s for hamstrings and quadriceps bilaterally. From average peak torques, we determined ipsilateral hamstrings:quadriceps and homologous muscle-group ratios. RESULTS: Correlations between hamstrings and quadriceps strength measures ranged from 0.78 to 0.97. Players 15-17 years old had greater relative hamstrings and quadriceps strength than 11- to 13-year-old athletes. Age and sex interacted significantly for quadriceps strength. The quadriceps strength of 15- to 17-year-old girls did not differ from that of 11- to 13-year-old girls, whereas 15- to 17-year-old boys had stronger quadriceps than 11- to 13-year-old boys. Boys 15-17 years old had greater quadriceps strength than girls 15-17 years old. CONCLUSIONS: This study is unique in providing normative data for the hamstrings and quadriceps strength of basketball players 11-13 and 15-17 years old. Age-related strength differences did not occur consistently between the sexes, as girls 11-13 and 15-17 years old had similar relative quadriceps strength.

Journal Article↗
PubMed1983

Relationship of selected variables to performance in women's basketball.

Twenty women were measured on physiological, anthropometric, motor fitness and skill related variables in order to provide a current profile of elite female basketball players. Performance of each subject was evaluated firstly to determine the relationship between performance and selected variables and secondly to determine which variables best discriminated between the top and lower ranked performers. The profile of the elite female player had changed considerably subsequent to rule changes. The better basketball players exhibited a superior aerobic power and anaerobic capacity, were more accurate shooters and possessed less body fat. The factors which best discriminated between high and low performers were accuracy shooting, percent fat and VO2max. These variables could be used in a test battery to assist in the selection and development of potential basketball players.

Adipose Tissue↗
PubMed1991

Safety of a preadolescent basketball program.

A preadolescent youth basketball program was prospectively studied to determine injury rates and the kinds of injuries sustained. The overall injury rate was 7.6% (39 injuries among the 510 children aged 5 to 12 years). Girls had a higher injury rate than boys (P less than .02). Only 12 children (2.4%) suffered significant injuries as defined by the inability to play for at least one session. Most injuries were contusions (35.9%), followed by strains or sprains (28.2%), epistaxis (12.8%), lacerations (5.1%), and one finger fracture (2.6%), the most significant injury. Games were more likely to produce injuries than practice sessions; most injuries occurred in the second half of game play. This study documents a low injury rate in an organized preadolescent basketball program.

Basketball↗
PubMed1995

Examination of menstrual synchrony among women basketball players.

Based on the hypothesis that olfactory communication may underlie menstrual synchrony, we examined menstrual synchrony among eight professional basketball teams in the Israeli womens' major basketball league. We investigated whether team synchrony occurred, whether best friends among the teammates synchronized, and whether menstrual-related or social-interaction factors were associated with synchrony. Synchrony was not found among the teams nor among best friends. No meaningful relation was found between synchrony and menstrual-related or social-interaction variables.

Adolescent↗
PubMed2006

An in vivo and in vitro study of erythrocyte membrane acetylcholinesterase, (Na+, K+)-ATPase and Mg2+-ATPase activities in basketball players on alpha-tocopherol supplementation. The role of L-carnitine.

BACKGROUND & AIMS: Vitamin E (alpha-tocopherol, alpha-Te) and carnitine reduce lipid peroxidation. THE AIM WAS TO: To investigate the erythrocyte membrane acetylcholinesterase (AChE), Na+, K+-ATPase and Mg2+-ATPase activities in basketball players with or without alpha-Te supplementation, before and after training. In vitro, we aimed to find out any additional effect of L-carnitine (L-C) on the modulated enzyme activities. SUBJECTS AND METHODS: Blood was obtained from 10 players before (group A), after exercise (group B) and after 1 month on alpha-Te (200 mg/24 h orally) supplementation before (group C) and after the game (group D). Lactate, pyruvate, muscle enzyme activities and total antioxidant status (TAS) were measured with commercial kits. Catecholamines and alpha-Te were determined with HPLC methods and membrane enzyme activities spectrophotometrically. RESULTS: Lactate, pyruvate, muscle enzymes and catecholamine levels were increased (P<0.001) in all groups after training. Alpha-Te levels and Mg2+-ATPase activity remained unaltered before and after exercise. TAS was decreased in the groups after the game. AChE activity was increased in group B (P<0.01) and decreased in group D (P<0.01). After the exercise, Na+, K+-ATPase activity was increased in group B and remained unaltered in group D. In vitro incubation of membranes from group D with L-C resulted in a partially restoration of the membrane AChE activity, whereas Na+, K+-ATPase and Mg2+-ATPase activities were found unchanged. CONCLUSIONS: Alpha-Te supplementation in basketball players results in an increase of TAS and AChE activity, whereas the other enzyme activities were found unchanged. L-C addition may restore AChE activity, which was modulated by training in players on alpha-Te.

Acetylcholinesterase↗
PubMed1997

Shoulder rotator torque and wheelchair dependence differences of National Wheelchair Basketball Association players.

OBJECTIVE: Shoulder rotator muscle imbalances can contribute to subacromial impingement. The forces and movement patterns of wheelchair locomotion may contribute to these imbalances. This study attempted to determine whether National Wheelchair Basketball Association players of differing classifications had significant differences (p < or = .05) in concentric isokinetic peak shoulder rotator torque and torque ratios, and wheelchair locomotion dependence. DESIGN: Fifty-seven (class 1 = 12, class 2 = 24, class 3 = 21) of 117 total tournament participants (class 1 = 25, class 2 = 49, class 3 = 43) served as the convenience sample of volunteers for the survey portion, and 33 of these subjects (class 1 = 11, class 2 = 12, class 3 = 10) also entered the isokinetic portion of this study. SETTING: National wheelchair basketball tournament. RESULTS: Class 1 and 2 players had greater wheelchair dependence than class 3 players (p < or = .05). Peak torque or torque ratios generally did not differ among player classifications or with other populations. Class 1 players had weaker nondominant shoulder external rotator torque production at 60 degrees/sec (p < or = .03) compared with other classes and at 180 degrees/sec compared with class 3 players (p = .02), suggesting an inability to develop the "attenuation of dominance" noted among other groups. Diminished torque-producing capacity at 60 degrees/sec related to greater wheelchair dependence among class 1 players (p = .034). CONCLUSIONS: Class 1 players failed to demonstrate the acquired shoulder external rotator torque symmetry evident among class 2 and 3 players (with specific weakness of the nondominant shoulder external rotators). This torque symmetry difference was related to their greater dependence on wheelchair locomotion.

Adult↗
PubMed2000

Predicting success in junior elite basketball players--the contribution of anthropometic and physiological attributes.

Talent identification programs have traditionally focused on individual sports with discrete physical and physiological characteristics. Limited attention has been directed toward predicting performance in team sports. This study measured anthropometric and physiological attributes of 125 male and 123 female junior basketball players competing at the Australian Under 16 championships in 1998. In addition, experienced coaches rated the performance of players during the championships. Performance profiles were compared across playing positions and by playing performance ('Best versus Rest'). Differences in anthropometric characteristics were present across some playing positions for both males and females. Speed and agility differences between some playing positions were also present. Best players differed to Rest players on a number of anthropometric and physiological variables for both males and females. Regression analyses indicated the test variables accounted for a significant proportion of variance in playing performance for both females (41.3%) and males (38.3%). A Z score analysis indicated good alignment between the test and coach ranking of the Best player in four out of five positions for females and two out of five positions for males. Anthropometric and physiological profiling can contribute to selection procedures in junior basketball, however determinants of success are multi-factorial.

Adolescent↗