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Kember LS, Myer GD, Moore IS, Lloyd RS. Effects of Fatigue on Lower Limb Biomechanics and Kinetic Stabilization During the Tuck-Jump Assessment. J Athl Train 2024; 59:705-712. [PMID: 37681667 PMCID: PMC11277271 DOI: 10.4085/1062-6050-0252.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
CONTEXT General and local muscular fatigue is postulated to negatively alter lower limb biomechanics; however, few prospective studies have been done to examine the effect of fatigue on tuck-jump performance. The tuck-jump assessment (TJA) is a criteria-based visual screening tool designed to identify neuromuscular deficits associated with anterior cruciate ligament (ACL) injury. Use of kinetics during the TJA after an intense sport-specific fatigue protocol may identify fatigue-induced neuromuscular deficits associated with ACL injury risk. OBJECTIVE To examine the effects of a sport-specific fatigue protocol on visually evidenced (2-dimensional) technical performance of repeated tuck jumps and lower limb kinetic stabilization. DESIGN Cross-sectional study. SETTING Laboratory. PATIENTS OR OTHER PARTICIPANTS Twelve female netball athletes (age = 20.8 ± 2.6 years, height = 170.0 ± 0.04 cm, mass = 67.5 ± 7.4 kg). MAIN OUTCOME MEASURE(S) Participants performed 1 set of a TJA before and after a sport-specific fatigue protocol. Paired t tests and effect sizes were used to evaluate differences and the magnitude of differences in TJA scoring criterion, kinetics, and kinetic stabilization prefatigue to postfatigue. RESULTS A small increase was observed for vertical relative lower extremity stiffness postfatigue (P = .005; Hedges g = 0.45). Peak center-of-mass displacement, time of jump cycle, ground contact time, flight time, jump height, and vertical net impulse decreased with small to moderate effect sizes (P < .01; Hedges g range, 0.41-0.74). No differences were observed for TJA composite scores, peak vertical ground reaction force, and stabilization indices of kinetic variables after the fatigue protocol (P > .05). CONCLUSIONS Kinetic analysis of repeated tuck jumps after a fatigue protocol identified an altered jumping strategy, which was not identifiable via visual 2-dimensional assessment. However, based on kinetic measures, fatigue induces a stiffer jumping strategy, and practitioners should consider assessing load attenuation strategies that may not be visually evident when evaluating ACL-injury risk factors in athletes who are fatigued.
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Affiliation(s)
- Lucy S. Kember
- School of Sport and Health Sciences, Cardiff Metropolitan University, UK
| | - Gregory D. Myer
- Emory Sport Performance and Research Center, Flowery Branch, GA
- Emory Sports Medicine Center, Atlanta, GA
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA
- Micheli Center for Sports Injury Prevention, Waltham, MA
| | - Isabel S. Moore
- School of Sport and Health Sciences, Cardiff Metropolitan University, UK
| | - Rhodri S. Lloyd
- School of Sport and Health Sciences, Cardiff Metropolitan University, UK
- Sport Performance Research Institute, New Zealand (SPRINZ), Auckland University of Technology
- Centre for Sport Science and Human Performance, Waikato Institute of Technology, Hamilton, New Zealand
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2
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Yalfani A, Ahmadi M, Asgarpoor A. The effect of kinetic factors of dynamic knee valgus on patellofemoral pain: A systematic review and meta-analysis. J Bodyw Mov Ther 2024; 37:246-253. [PMID: 38432813 DOI: 10.1016/j.jbmt.2023.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 11/06/2023] [Indexed: 03/05/2024]
Abstract
The speculation of dynamic knee valgus (DKV) correlates with kinetic changes in the frontal plane that increased loading patellofemoral joint (PFJ). Therefore, it is the purpose of this systematic review and meta-analysis study is the effect of kinetic factors DKV on patellofemoral pain (PFP). The search strategy was carried out in the electronic databases of Cochrane Library, PubMed, Springer Link, Science Direct, Scopus. Studies limited to the period 2000 to 2020 were extracted. The quality of study was assessment by modified Downs and Black checklist. Mean and standard deviation were also used to calculate the effect size. There were selected 8 articles for the systematic review and Meta-analysis. The results showed that in PFP patients compared to healthy individuals have increase knee abduction moment (SMD = 0.75; 95% CI = [0.47 to 1.02]) and impulse (SMD = 0.79; 95% CI = [0.50 to 1.07]). Furthermore, PFP patients compared to healthy individuals have decrease onset (SMD = -0.60; 95% CI = [-1.03 to -0.17]) and during (SMD = -0.93; 95% CI = [-1.57 to -0.29]) gluteus medius (GMED); vis-à-vis, PFP patients compared to healthy individuals have increase onset (SMD = 0.10; 95% CI = [-0.34 to 0.54]) and during (SMD = 0.29; 95% CI = [-0.15 to 0.73]) adductors longus (AL). As a result; PFP patients compared to healthy individuals show decrease co-contraction GMED/AL (SMD = -1.03; 95% CI = [-1.83 to -0.24]). The kinetic factors of DKV of leading to PFJ contact area decreases and the loading in a smaller contact area on PFJ in the outer part of the patella. Eventually, this abnormal distribution of contact pressure leads to etiology and osteoarthritis of the PFP.
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Affiliation(s)
- Ali Yalfani
- Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, Bu-Ali Sina University, Hamedan, Iran.
| | - Mohamadreza Ahmadi
- Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, Bu-Ali Sina University, Hamedan, Iran
| | - Azadeh Asgarpoor
- Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences, Bu-Ali Sina University, Hamedan, Iran
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Mullally EM, Atack AC, Glaister M, Clark NC, Brown N. A cross-sectional retrospective survey of injury situation and prevalence in female recreational netball players with a focus on knee injuries. Phys Ther Sport 2023; 60:70-74. [PMID: 36706648 DOI: 10.1016/j.ptsp.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 01/22/2023]
Abstract
OBJECTIVES To examine situations of injury and injury prevalence in female adult recreational netball players with a focus on knee injuries. DESIGN Cross sectional retrospective online survey. PARTICIPANTS 193 female adult recreational netball players. MAIN OUTCOME MEASURES Any injury sustained in the previous 12 months, situation of injury, any knee injuries sustained in the previous five years, the length of time unable to play netball, and knee injury management. RESULTS In the previous 12 months, 61% of respondents sustained injury to the lower limb, and 27% to the upper limb. Lower limb injury situations were mostly landings (46%). Upper limb injury situations were mostly collisions with an opponent (27%). 46% reported sustaining a knee injury in the previous five years. Following knee injury, players were unable to play netball for 6.8 ± 7.0 months (training); and 8.2 ± 7.4 months (matches) respectively. CONCLUSIONS Lower limb injury is more common than upper limb injury in recreational adult female adult netball players. Landing was the most common situation of injury for the lower limb including knee injuries. In the previous five years, nearly half of the players had sustained a knee injury resulting in more than six months out of the game.
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Affiliation(s)
- Elaine M Mullally
- Faculty of Sport, Health and Applied Sciences. St Mary's University, Waldegrave Road, Twickenham, TW1 4SX, United Kingdom.
| | - Alexandra C Atack
- Faculty of Sport, Health and Applied Sciences. St Mary's University, Waldegrave Road, Twickenham, TW1 4SX, United Kingdom.
| | - Mark Glaister
- Faculty of Sport, Health and Applied Sciences. St Mary's University, Waldegrave Road, Twickenham, TW1 4SX, United Kingdom.
| | - Nicholas C Clark
- School of Sport, Rehabilitation, and Exercise Sciences. University of Essex, Wivenhoe Park, Colchester, Essex, CO4 3SQ, United Kingdom.
| | - Nicola Brown
- Faculty of Sport, Health and Applied Sciences. St Mary's University, Waldegrave Road, Twickenham, TW1 4SX, United Kingdom.
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Peng M. AQUATIC EXERCISES IN THE KNEE INJURY REHABILITATION OF ATHLETES. REV BRAS MED ESPORTE 2023. [DOI: 10.1590/1517-8692202329012022_0495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
ABSTRACT Introduction: Volleyball requires jumping and strenuous movements and certain sports injuries inevitably occur during the sport. The surface of the knee joint is considerably large and shallow, making the lever effect strong and negative, easily targeted for injury in the unstable movements caused by this sport. Objective: Investigate the main causes of knee joint injuries in volleyball players and evaluate the effect of treatment with intervention through aquatic therapy. Methods: Eight volleyball players from a university with different degrees of knee joint injury were randomly divided into an experimental group and a control group. The experimental group used intervention training with aquatic exercise therapy, while the control group did not include additional rehabilitation measures. The knee condition of the subjects before and after the experiment was analyzed and compared. Results: The knee joint injury in the subjects in the experimental group was significantly improved, and the recovery from the knee joint injury of the subjects in the experimental group was better than that of the subjects in the control group. Conclusion: Water sports therapy can significantly improve the knee joint injury of volleyball players, leading to the belief that water sports therapy can effectively improve the agility, strength, and endurance of muscles adjacent to knee joints in patients, reducing their pain, and increasing the range of motion of these joints. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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Affiliation(s)
- Mu Peng
- Xinxiang Medical University, China
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Janse van Rensburg DC, Bryant G, Kearney S, Singh P, Devos A, Jansen van Rensburg A, Schwellnus MP, Botha T. The epidemiology of injury and illness at the Vitality Netball World Cup 2019: an observational study. PHYSICIAN SPORTSMED 2022; 50:359-368. [PMID: 34030597 DOI: 10.1080/00913847.2021.1932632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Netball is a physical game with sudden direction changes, decelerations, jumping and landing, stop/start maneuvers and restrictive footwork rules exposing players to injury. Close contact play and shared facilities during tournaments, increase illness risk.Objective: To describe incidence, period prevalence, types and severity of injuries and illnesses during the 10-day Vitality Netball World Cup 2019 (NWC).Methods: All players from 16 teams consented (n = 192). Medical staff recorded injuries (840 exposure hours), illnesses (1440 player-days) and time-loss. Main outcome measures included incidence (I) calculated as injury/1000 player-hours and illness/1000 player-days, period prevalence (PP) and severity (time-loss) of all match injuries and illnesses. RESULTS 39 players sustained 46 match injuries (I = 54.76; PP = 20.31%). Lower limb injuries (I = 29.76), specifically the ankle (I = 13.10) were most common with lateral ankle ligament sprains the highest (I = 17.39). Contact injuries (I = 40.48) significantly exceeded non-contact injuries (I = 14.29; p = 0.0124). Center players sustained most injuries (n = 12; 26%; I = 14.29), followed by goalkeepers (n = 10; 22%; I = 11.90) and goal defenders (n = 8; 17%; I = 9.52). Injuries occurred in almost 50% of matches, and 67% did not result in time-loss. Time-loss injuries (n = 14; 33%) were most frequent in the lower limb (n = 10; 71%) specifically involved lateral ankle ligaments (n = 4; 29%), attributable to contact (n = 11; 79%) and mostly implicated center players and goal defenders (n = 4 each; 29% each). 11 players contracted 11 illnesses (I = 7.64; PP = 5.72%) with respiratory tract illness contributing 36%. Most illnesses did not result in time-loss (91%). CONCLUSION This is the first study reporting injury and illness during an NWC. Contact was the main mechanism of injury, and 2/3 of injuries did not result in time-loss. The ankle is most commonly injured and center players sustain most injuries. Non-respiratory system disease was most frequent, but upper respiratory tract infection remains the most common diagnosis. Targeted surveillance studies using similar methodology are required to develop injury and illness preventative strategies in elite netball.
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Affiliation(s)
- Dina Christa Janse van Rensburg
- Section Sports Medicine & Sport Exercise Medicine Lifestyle Institute (SEMLI), Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.,Medical Board Member, International Netball Federation, Manchester, UK
| | - Grace Bryant
- Sports Medicine, University of Sydney, Sydney, Australia.,Medical Board, International Netball Federation, Manchester, UK
| | - Sharon Kearney
- Medical Board Member, International Netball Federation, Manchester, UK.,Medical Board, International Netball Federation, Manchester, UK.,Sports Medicine, University of Pretoria, Pretoria, South Africa
| | - Praimanand Singh
- Medical Board Member, International Netball Federation, Manchester, UK.,Sports Medicine and Consultant, Emergency Medicine at the University, West Indies
| | - Arnold Devos
- Principal Consultant, Background Signal P/L, Australia, Australia
| | - Audrey Jansen van Rensburg
- Section Sports Medicine & Sport Exercise Medicine Lifestyle Institute (SEMLI), Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Martin P Schwellnus
- Section Sports Medicine & Sport Exercise Medicine Lifestyle Institute (SEMLI), Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.,International Olympic Committee (IOC) Research Centre, Pretoria, South Africa
| | - Tanita Botha
- Department of Statistics, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
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Abe T, Nakamae A, Toriyama M, Hirata K, Adachi N. Effects of limited previously acquired information about falling height on lower limb biomechanics when individuals are landing with limited visual input. Clin Biomech (Bristol, Avon) 2022; 96:105661. [PMID: 35588585 DOI: 10.1016/j.clinbiomech.2022.105661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 03/13/2022] [Accepted: 05/03/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Inhibitions in the acquisition of accurate information about the environment can affect control of the lower extremities and lead to anterior cruciate ligament injury. This study aimed to clarify the effects of limited prior knowledge of the height of the fall, as well as limited visual input, on lower limb and trunk motion and ground reaction force during landing. METHODS Twenty healthy university students were recruited. Drop landings from a 30-cm platform were measured under three conditions: (1) unknown, without prior knowledge of the height of the fall and without visual input; (2) known, with prior knowledge of the height of the fall and without visual input; and (3) control, with prior knowledge of the height of the fall and visual input. FINDINGS In the unknown condition, the peak ground reaction force for the vertical and posterior directions was significantly higher than that in the known and control conditions; leg and knee stiffness, ankle joint work, and joint flexion motion of the knee, ankle, and trunk after landing were decreased as well. In the known condition, there were no significant differences in leg and knee stiffness and vertical ground reaction force compared to the control condition. INTERPRETATION The results of this study indicate that the risk of anterior cruciate ligament injury during landing increases when individuals have limited visual input and prior knowledge of the height of the fall. This finding suggests that an accurate perception of the surrounding environment may help prevent anterior cruciate ligament injuries.
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Affiliation(s)
- Takumi Abe
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Atsuo Nakamae
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan.
| | - Minoru Toriyama
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Kazuhiko Hirata
- Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
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Whitehead S, Weakley J, Cormack S, Alfano H, Kerss J, Mooney M, Jones B. The Applied Sports Science and Medicine of Netball: A Systematic Scoping Review. Sports Med 2021; 51:1715-1731. [PMID: 34086257 PMCID: PMC8310515 DOI: 10.1007/s40279-021-01461-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Netball is the one of the most popular women's sports in the world. Since gaining professional status in 2008 there has been a rapid growth in research in the applied sports science and medicine of the sport. A scoping review of the area would provide practitioners and researchers with an overview of the current scientific literature to support on-court performance, player welfare and reduce injury. OBJECTIVE The primary objective was to identify the current research on the applied sports science and medicine of netball. Additionally, the article provides a brief summary of the research in each topic of sports science and medicine in netball and identifies gaps in the current research. METHODS Systematic searches of PubMed, SPORTDiscus, MEDLINE and CINAHL were undertaken from earliest record to Dec 2020 and reference lists were manually searched. The PRISMA-ScR protocol was followed. Studies were eligible for inclusion if they investigated netball as a sport or the applied sport science and medicine of netball athletes. RESULTS 962 studies were identified in the initial search, 150 of which met the inclusion criteria. Injury was the most highly investigated sport science and medicine topic (n = 45), followed by physical qualities (n = 37), match characteristics (n = 24), biomechanics (n = 15), psychology (n = 13), fatigue and recovery (n = 9), training load (n = 4) and nutrition (n = 3). A range of cohorts were used from school to elite and international standards. All cohorts were female netballers, except for one study. A rapid growth in studies over recent years was demonstrated with 65% of studies published in the last decade. There still remains gaps in the literature, with a low evidence base for nutrition, training load and fatigue and recovery. CONCLUSION This scoping review summarises the current evidence base and key findings that can be used in practice to enhance the applied sport science and medical support to netball athletes across a range of playing standards, and support the growth of the sport. It is evident that netball as a sport is still under-researched.
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Affiliation(s)
- Sarah Whitehead
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, LS6 3QS, UK.
- Leeds Rhinos Netball, Leeds, UK.
- Leeds Rhinos Rugby League Club, Leeds, UK.
| | - Jonathon Weakley
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, LS6 3QS, UK
- School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, QLD, Australia
| | - Stuart Cormack
- School of Behavioral and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Melbourne, Australia
| | | | - Jim Kerss
- English Institute of Sport, Manchester, UK
| | - Mitch Mooney
- School of Behavioral and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
- High Performance Pillar, Netball Australia, Melbourne, Australia
| | - Ben Jones
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, LS6 3QS, UK
- Leeds Rhinos Rugby League Club, Leeds, UK
- England Performance Unit, The Rugby Football League, Leeds, UK
- School of Science and Technology, University of New England, Armidale, NSW, Australia
- Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, The University of Cape Town and the Sports Science Institute of South Africa, Cape Town, South Africa
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