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Brown FSA, Fields JB, Jagim AR, King EL, Baker RE, Miller A, Jones MT. Relationship of Individual Athlete External Load, Session Rating of Perceived Exertion, and Athlete Playing Status Across a Collegiate Women's Basketball Season. Sports (Basel) 2024; 12:340. [PMID: 39728880 DOI: 10.3390/sports12120340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2024] [Revised: 11/21/2024] [Accepted: 12/03/2024] [Indexed: 12/28/2024] Open
Abstract
External (EL) and internal (IL) load are commonly used methods used to quantify training load in team sports. Playing time and playing position may influence the training loads for specific athletes throughout a season. The purpose of the current study was to evaluate the effect of athlete playing status and individual in-season practices on EL and IL across a collegiate women's basketball season. Female basketball athletes were classified as high-minute (HMA; ≥15 min/game) or low-minute (LMA; <15 min/game) and wore microsensors during 53 practices for a total of 583 data points. EL was obtained via an inertial measurement unit (IMU) device that contained a triaxial accelerometer to obtain three-dimensional positioning data. IL and strength training (ST) load were determined via session rating of perceived exertion (sRPE) to create a daily summated value. Descriptive statistics indicate that athletes experienced individual differences in EL, ST, and IL throughout the season. A growth model showed that HMAs experienced higher EL than LMAs at the start of the season for practices (90.21 AU). Across all athletes, IL increased across the season (40.11 AU) and for each 1 unit of change in EL, IL increased by 1.04 AU. Repeated measures correlations identified a large relationship between IL and EL (r = 0.51, p < 0.001). A location-scale model indicated that the within-person variability of IL across all athletes was 3.29 AU but was not due to athlete playing status. It is recommended to base in-season training on individual loads and game demands to promote athlete readiness and improved sport performance.
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Affiliation(s)
- Faith S A Brown
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA 22030, USA
- Sport, Recreation, and Tourism Management, George Mason University, Fairfax, VA 22030, USA
| | - Jennifer B Fields
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA 22030, USA
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Andrew R Jagim
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA 22030, USA
- Sports Medicine, Mayo Clinic Health System, Onalaska, WI 54650, USA
| | - Erica L King
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA 22030, USA
- Biomedical Engineering, George Mason University, Fairfax, VA 22030, USA
| | - Robert E Baker
- Sport, Recreation, and Tourism Management, George Mason University, Fairfax, VA 22030, USA
| | - Angela Miller
- Research Methods and Educational Psychology, George Mason University, Fairfax, VA 22030, USA
| | - Margaret T Jones
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA 22030, USA
- Sport, Recreation, and Tourism Management, George Mason University, Fairfax, VA 22030, USA
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Tuttle MC, Power CJ, Dalbo VJ, Scanlan AT. Intensity Zones and Intensity Thresholds Used to Quantify External Load in Competitive Basketball: A Systematic Review. Sports Med 2024; 54:2571-2596. [PMID: 38888854 PMCID: PMC11467009 DOI: 10.1007/s40279-024-02058-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND Despite widespread use of intensity zones to quantify external load variables in basketball research, the consistency in identifying zones and accompanying intensity thresholds using predominant monitoring approaches in training and games remains unclear. OBJECTIVES The purpose of this work was to examine the external load intensity zones and thresholds adopted across basketball studies using video-based time-motion analysis (TMA), microsensors, and local positioning systems (LPS). METHODS PubMed, MEDLINE, and SPORTDiscus databases were searched from inception until 31 January 2023 for studies using intensity zones to quantify external load during basketball training sessions or games. Studies were excluded if they examined players participating in recreational or wheelchair basketball, were reviews or meta-analyses, or utilized monitoring approaches other than video-based TMA, microsensors, or LPS. RESULTS Following screening, 86 studies were included. Video-based TMA studies consistently classified jogging, running, sprinting, and jumping as intensity zones, but demonstrated considerable variation in classifying low-intensity (standing and walking) and basketball-specific activities. Microsensor studies mostly utilized a single, and rather consistent, threshold to identify only high-intensity activities (> 3.5 m·s-2 for accelerations, decelerations, and changes-in-direction or > 40 cm for jumps), not separately quantifying lower intensity zones. Similarly, LPS studies predominantly quantified only high-intensity activities in a relatively consistent manner for speed (> 18.0 m·s-1) and acceleration/deceleration zones (> 2.0 m·s-2); however, the thresholds adopted for various intensity zones differed greatly to those used in TMA and microsensor research. CONCLUSIONS Notable inconsistencies were mostly evident for low-intensity activities, basketball-specific activities, and between the different monitoring approaches. Accordingly, we recommend further research to inform the development of consensus guidelines outlining suitable approaches when setting external load intensity zones and accompanying thresholds in research and practice.
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Affiliation(s)
- Matthew C Tuttle
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia.
| | - Cody J Power
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Vincent J Dalbo
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Aaron T Scanlan
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
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Brown FSA, Fields JB, Jagim AR, Baker RE, Jones MT. Analysis of In-Season External Load and Sport Performance in Women's Collegiate Basketball. J Strength Cond Res 2024; 38:318-324. [PMID: 37820260 DOI: 10.1519/jsc.0000000000004636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
ABSTRACT Brown, FSA, Fields, JB, Jagim, AR, Baker, RE, and Jones, MT. Analysis of in-season external load and sport performance in women's collegiate basketball. J Strength Cond Res 38(2): 318-324, 2024-Quantifying and monitoring athlete workload throughout a competitive season is a means to manage player readiness. Therefore, the purpose of the current study was to quantify practice and game external loads and to assess the relationship between such loads and basketball-specific performance metrics across a women's collegiate basketball season. Thirteen National Collegiate Athletic Association Division I women basketball athletes (age 20.08 ± 1.55 years) wore Global Positioning Systems sensors equipped with triaxial accelerometers for 29 games and 66 practices during the 2019-20 season. A multivariate analysis of variance was used to assess differences in external load between high- and low-minute players and across quarters within games ( p < 0.05). Bivariate Pearson correlation coefficients were run to determine relationships between external loads and metrics of basketball performance. Findings indicated that high- and low-minute athletes experienced different loads during games and practices ( p < 0.001). External loads differed by quarter, such that player load (PL) was highest in Q4 ( p = 0.007), PL·min -1 was highest in Q1 and lowest in Q4 ( p < 0.001), and explosive ratio (i.e., ratio of PL and explosive efforts) was lowest in Q3 ( p = 0.45). Relationships existed between PL·min -1 and field goals ( r = 0.41; p = 0.02) and between the explosive ratio and free throws ( r = 0.377 p = 0.04). These results can be used to inform design of training sessions with the intent to prepare athletes for the demands of the competitive season. It is recommended that future research continue to explore the relationship of sport-specific performance metrics and athlete external load.
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Affiliation(s)
- Faith S A Brown
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, Virginia
- Sport, Recreation, and Tourism Management, George Mason University, Fairfax, Virginia
| | - Jennifer B Fields
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, Virginia
- Exercise Science and Athletic Training, Springfield College, Springfield, Massachusetts
| | - Andrew R Jagim
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, Virginia
- Sports Medicine, Mayo Clinic Health System, La Crosse, Wisconsin
| | - Robert E Baker
- Sport, Recreation, and Tourism Management, George Mason University, Fairfax, Virginia
| | - Margaret T Jones
- Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, Virginia
- Sport, Recreation, and Tourism Management, George Mason University, Fairfax, Virginia
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Stojanović E, Terrence Scanlan A, Radovanović D, Jakovljević V, Faude O. A multicomponent neuromuscular warm-up program reduces lower-extremity injuries in trained basketball players: a cluster randomized controlled trial. PHYSICIAN SPORTSMED 2023; 51:463-471. [PMID: 36208619 DOI: 10.1080/00913847.2022.2133978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 10/05/2022] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To assess the effects of a novel multicomponent neuromuscular warm-up program on lower-extremity injury incidence in basketball players competing at the regional level. METHODS A cluster randomized controlled experimental design was adopted to compare injury incidence between players exposed to the injury prevention warm-up program and those exposed to a typical warm-up program across an entire basketball season. Four teams consisting of 57 players (male: n = 42; female: n = 15) were allocated to the intervention group (age: 21.6 ± 2.5 years; height: 186.2 ± 8.8 cm; body mass: 80.0 ± 10.4 kg) and four teams consisting of 55 players (male: n = 43; female: n = 12) were allocated to the control group (age: 21.6 ± 2.6 years; height: 186.9 ± 9.1 cm; body mass: 81.5 ± 10.9 kg). The novel warm-up combined running exercises with active stretching, plyometrics, balance, strength, and agility drills. Coaching and medical staff provided details on injury incidence each week. Data analyses included the use of poisson regression analyses and the incidence rate ratio (IRR) with 95% confidence intervals (CI). RESULTS The intervention group experienced a significantly lower ankle sprain incidence rate (IRR = 0.26, 95% CI = 0.05, 0.98, p = 0.02) and a tendency toward a lower knee injury incidence rate (IRR = 0.32, 95% CI = 0.03, 1.78, p = 0.07) compared to the control group. Considering only non-contact lower-extremity injuries of any type, the intervention group experienced a significantly lower incidence rate compared to the control group (IRR = 0.26, 95% CI = 0.05, 0.98, p < 0.001). CONCLUSION This multi-team study demonstrated a novel multicomponent warm-up program resulted in less lower-extremity injuries, particularly ankle sprains and knee injuries, compared to a typical warm-up program in regional-level male and female basketball players.
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Affiliation(s)
- Emilija Stojanović
- Faculty of Medical Sciences, Department of Physiology, University of Kragujevac, Kragujevac, Serbia
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Aaron Terrence Scanlan
- Human Exercise and Training Laboratory, School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Australia
| | | | - Vladimir Jakovljević
- Faculty of Medical Sciences, Department of Physiology, University of Kragujevac, Kragujevac, Serbia
- Department of Human Pathology, Moscow State Medical University IM Sechenov, Moscow, Russia
| | - Oliver Faude
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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Stojanović E, Faude O, Nikić M, Scanlan AT, Radovanović D, Jakovljević V. The incidence rate of ACL injuries and ankle sprains in basketball players: A systematic review and meta-analysis. Scand J Med Sci Sports 2023; 33:790-813. [PMID: 36752659 DOI: 10.1111/sms.14328] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/21/2022] [Accepted: 02/02/2023] [Indexed: 02/09/2023]
Abstract
OBJECTIVE To quantify the incidence rate of anterior cruciate ligament (ACL) injuries and ankle sprains according to player sex, playing level, and exposure setting (training vs. games) in basketball players. METHODS PubMed, MEDLINE, Google Scholar, and ScienceDirect were searched. Only studies reporting the number of ACL injuries and/or ankle sprains alongside the number of athlete-exposures (training sessions and/or games) in basketball players were included. RESULTS Thirty studies (17 reporting ACL injuries and 16 reporting ankle sprains) were included in the meta-analysis. Higher (p < 0.05) ACL injury incidence rates per 1000 athlete-exposures were recorded in females (female: 0.20 95% confidence intervals [0.16-0.25]; male: 0.07 [0.05-0.08]; female-to-male ratio: 3.33 [3.10-3.57]), in players competing at higher playing levels (amateur: 0.06 [0.04-0.09]; intermediate: 0.16 [0.13-0.20]; elite: 0.25 [0.14-0.64]), and in games (games: female, 0.27 [0.21-0.32]; male, 0.06 [0.03-0.08]; training: female, 0.03 [0.02-0.05]; male: 0.01 [0.00-0.02]; game-to-training ratio: 7.90 [4.88-12.91]). Higher (p < 0.05) ankle sprain incidence rates per 1000 athlete-exposures were observed in males (female: 0.82 [0.61-1.03]; male: 0.90 [0.61-1.19]; female-to-male ratio: 0.91 [0.83-0.99]), in players competing at higher playing levels (amateur: 0.54 [0.51-0.57]; intermediate: 1.12 [1.00-1.24]; elite: 1.87 [1.29-2.46]), and in games (games: 2.51 [1.85-3.16]; training: 0.80 [0.52-0.80]; game-to-training ratio: 2.77 [2.35-3.26]). CONCLUSION According to player sex, ACL injury incidence rate is higher in females, while ankle sprain incidence rate is greater in males. ACL injury and ankle sprain incidence rates are greater in players competing at higher playing levels and during games compared to training.
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Affiliation(s)
- Emilija Stojanović
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.,Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Oliver Faude
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Miloš Nikić
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Aaron T Scanlan
- Human Exercise and Training Laboratory, School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Queensland, Australia
| | | | - Vladimir Jakovljević
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.,Department of Human Pathology, Moscow State Medical University IM Sechenov, Moscow, Russia
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Wang B. THE INDIRECT INFLUENCE OF BASKETBALL ON CARDIAC AND CEREBRAL VASCULARIZATION. REV BRAS MED ESPORTE 2022. [DOI: 10.1590/1517-8692202228022021_0498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT Introduction: Some experimental research has proved that long-term basketball exercises can effectively improve physical fitness, promote growth and improve motor functions. However, studies exploring the specific effects of this sport on cardiac and cerebral vascularization are still scarce. Objective: We aimed to study, through experimental analysis, if the activities derived from basketball sport can have some influence on cardiac and cerebral vascularization. Methods: Twelve students with no family history of genetic diseases and in good health, who regularly practice amateur basketball, were followed for 8 weeks. Weight, height, body mass index, body fat rate, maximum oxygen consumption, hemoglobin, and indicators of lipid metabolism were analyzed. Results: After long-term basketball exercises, the body fat rate of these college students decreased significantly, and total serum cholesterol and low-density lipoprotein also show significant differences compared with the control group. Conclusion: Through the processing and analysis of the experimental data, it can be concluded that basketball can effectively reduce the human body fat rate, maintain a healthy body shape, and indirectly reduce the risk of cardiovascular and cerebrovascular diseases. Level of evidence II; Therapeutic studies - investigation of treatment results.
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Wood TG, Scanlan AT, Minett GM, Kelly VG. A Comparison of the External and Internal Demands Imposed during Conditioning Training and Match-Play in Semi-Professional and Development Female Netball Players. Sports (Basel) 2022; 10:sports10010012. [PMID: 35050977 PMCID: PMC8822893 DOI: 10.3390/sports10010012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/16/2021] [Accepted: 12/29/2021] [Indexed: 12/10/2022] Open
Abstract
This case series, team-based study aimed to compare the demands imposed during conditioning training and match-play in netball players. Female netball players competing at semi-professional (n = 9, age: 22.2 ± 3.8 years) and development (n = 9, age: 22.3 ± 2.9 years) levels had their internal (rating of perceived exertion (RPE)) and external (relative PlayerLoad (PL) in total and in the forwards, sideways, and vertical vectors) loads measured during conditioning-based training sessions and matches in a season. Demand variables were compared between conditioning and match-play across all players and according to position in each playing level. Conditioning training imposed higher relative PL in total and in each vector compared to match-play in semi-professional and development players (small to large effects). In contrast, RPE was significantly (p = 0.006) higher during match-play than conditioning training in semi-professional and development players (medium effects). Furthermore, according to playing position, significantly higher relative PL variables were evident during conditioning training than match-play in wing attack and goalkeeper semi-professional players and in goal attack, goal shooter, goal keeper, and goal defence development players. These results suggest conditioning training practices elicit adequate external intensities but inadequate internal intensities relative to match-play across positions in semi-professional and development netball players.
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Affiliation(s)
- Tandia G. Wood
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia; (G.M.M.); (V.G.K.)
- Correspondence:
| | - Aaron T. Scanlan
- School of Health, Medical, and Applied Sciences, Central Queensland University, Rockhampton, QLD 4870, Australia;
| | - Geoffrey M. Minett
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia; (G.M.M.); (V.G.K.)
| | - Vincent G. Kelly
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia; (G.M.M.); (V.G.K.)
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