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Substitutions in basketball

Miguel-Ángel Gómez, Roberto Silva, Alberto Lorenzo, Rasa Kreivyte, Jaime Sampaio
Substituting basketball players during competition is a key process to optimise collective performance. Available research on this topic is scarce, probably due to the difficulty in isolating these effects; thus, the aim of this study was to identify the temporal effects of substitutions in basketball (Spanish professional basketball league). The sample was composed of 1118 substitutions gathered from 21 basketball games. The analysed variables were coach-controlled (player and team's personal fouls, player in and player out roles, player's in and out minutes on-court and timeout situation); on-court (foul committed, free throws, 2- and 3-point field-goal effectiveness) and situational variables (scoreline, quality of opposition, game location and game quarter)...
February 2017: Journal of Sports Sciences
Richard Pollard, Miguel A Gómez
Home advantage in seven American college team sports (baseball, basketball, football, hockey, lacrosse, soccer and women's basketball) was compared with professional leagues in the United States for the same sports and for the same time period. A total of 81,063 college games and 22,477 professional games were analyzed for the four seasons 2006-07 to 2009-10. There was a significant home advantage, as measured by home winning percentage, in all sports, both college and professional. The overall home advantage in college sports was significantly greater than in professional sports (p<0...
September 2015: Collegium Antropologicum
Erik Strumbelj, Frane Erčulj
(1) can measurements of anthropometric and physiological attributes substitute for expert assessment of adolescent basketball players, and (2) how much does the quantitative assessment of a player vary among experts? The first question is relevant to the potential simplification of the player selection process. The second question pertains directly to the validity of expert quantitative assessment. Our research was based on data from 148 U14 female and male basketball players. For each player, an array of anthropometric and physiological attributes was recorded, including body height, body mass, BMI, and several motor skill tests...
September 29, 2014: Journal of Human Kinetics
Yongwoo Jang, Sung Min Kim
BACKGROUND: Except for the I/D polymorphism in the angiotensin I-converting enzyme (ACE) gene, there were few reports about the relationship between other genetic polymorphisms in this gene and the changes in cardiac structure and function of athletes. Thus, we investigated whether the G2350A polymorphism in the ACE gene is associated with the changes in cardiac structure and function of ball game players. Total 85 healthy ball game players were recruited in this study, and they were composed of 35 controls and 50 ball game players, respectively...
January 12, 2012: Journal of Negative Results in Biomedicine
Nikolaos Pefanis, Panagiotis Karagounis, Georgios Tsiganos, Elias Armenis, Panagiotis Baltopoulos
The lack of a normal joint orientation generates translational or shear forces across the joint. These forces can put abnormally high strain on the cartilage and the surrounding capsuloligamentous tissues. Ankle joint structure can affect or be affected by bony malformations of the surrounding areas, including the knee and hip. The aim of the current study is to examine the possible relationship between the tibiofemoral (TFA) angle and other factors (anthropometric characteristics, medical history, and age) on the occurrence of ankle sprains because its value provides useful information for the anatomical alignment of the lower extremity...
December 2009: Foot & Ankle Specialist
Larry A Alferink, Thomas S Critchfield, Jennifer L Hitt, William J Higgins
Based on a small sample of highly successful teams, past studies suggested that shot selection (two- vs. three-point field goals) in basketball corresponds to predictions of the generalized matching law. We examined the generality of this finding by evaluating shot selection of college (Study 1) and professional (Study 3) players. The matching law accounted for the majority of variance in shot selection, with undermatching and a bias for taking three-point shots. Shot-selection matching varied systematically for players who (a) were members of successful versus unsuccessful teams, (b) competed at different levels of collegiate play, and (c) served as regulars versus substitutes (Study 2)...
2009: Journal of Applied Behavior Analysis
Nikolaos Pefanis, Xenofon Papaharalampous, Georgios Tsiganos, Eugenia Papadakou, Panagiotis Baltopoulos
The intersegmental joint forces and the structures that must resist them (articular surfaces, ligaments, and musculature) are related through anatomical alignment of the joints and skeletal system. Ankle joint structure can affect or be affected by bony malformations of the surrounding areas, including the knee and hip. The aim of the current study is to examine the possible relationship between the quadriceps (Q) angle and other factors (anthropometric characteristics, medical history, and age) on the occurrence of ankle sprains, because its value, when assessed correctly, provides useful information for the anatomical alignment of the lower extremity...
February 2009: Foot & Ankle Specialist
Cathleen N Brown, Kevin M Guskiewicz, Joseph Bleiberg
CONTEXT: Computerized neuropsychological testing is used in athletics; however, normative data on an athletic population are lacking. OBJECTIVE: To investigate factors, such as sex, SAT score, alertness, and sport, and their effects on baseline neuropsychological test scores. A secondary purpose was to begin establishing preliminary reference data for nonsymptomatic collegiate athletes. DESIGN: Observational study. SETTING: Research laboratory...
October 2007: Journal of Athletic Training
E M Broad, L M Burke, G R Cox, P Heeley, M Riley
Fluid losses (measured by body weight changes) and voluntary fluid intakes were measured in elite basketball, netball, and soccer teams during typical summer and winter exercise sessions to determine fluid requirements and the degree of fluid replacement. Each subject was weighed in minimal clothing before and immediately after training, weights, and competition sessions; fluid intake, duration of exercise, temperature and humidity, and opportunity to drink were recorded. Sweat rates were greatest during competition sessions and significantly lower during weights sessions for all sports...
September 1996: International Journal of Sport Nutrition
F A Flint, M R Weiss
This study investigated the extent to which decisions by coaches and athletic trainers concerning the return of injured athletes to competition were influenced by the player's status and the game situation. Samples were drawn from Oregon high school and Canadian university basketball teams. Coaches and athletic trainers completed a questionnaire in which they decided whether an injured player should be returned to competition. The scenarios included winning, losing, or close games and involved a starter, first substitute, or bench player...
March 1992: Canadian Journal of Sport Sciences, Journal Canadien des Sciences du Sport
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