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Fryar C, Tilley D, Casey E, Vincent H. A Research and Clinical Framework for Understanding Achilles Injury in Female Collegiate Gymnasts. Curr Sports Med Rep 2023; 22:260-267. [PMID: 37417663 DOI: 10.1249/jsr.0000000000001082] [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: 07/08/2023]
Abstract
ABSTRACT Gymnastics is a popular sport with a high injury rate, particularly at the collegiate level. Achilles tendon rupture is a catastrophic injury with career-changing impact. Over the last decade, there has been a growing incidence of Achilles tendon ruptures, especially in female gymnasts. Currently, neither the effects of contributing risk factors on Achilles tendon rupture nor the research frameworks to guide future intervention strategies have been well described. This article reviews the functional anatomy and mechanical properties of the Achilles tendon, provides precollegiate and collegiate intrinsic and extrinsic risk factors for Achilles tendon rupture, and proposes a research framework to address this injury from a systemic perspective. Potential clinical interventions to mitigate Achilles tendon injury are proposed based on currently available peer-reviewed evidence.
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Affiliation(s)
- Caroline Fryar
- Department of Physical Medicine and Rehabilitation, University of Florida College of Medicine, Gainesville, FL
| | - Dave Tilley
- Champion Physical Therapy & Performance, Watham, MA
| | - Ellen Casey
- Department of Physiatry, Hospital for Special Surgery, New York, NY
| | - Heather Vincent
- University of Florida College of Medicine, UF Physical Medicine & Rehabilitation
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Farana R, Williams G, Fujihara T, Wyatt HE, Naundorf F, Irwin G. Current issues and future directions in gymnastics research: biomechanics, motor control and coaching interface. Sports Biomech 2023; 22:161-185. [PMID: 34962219 DOI: 10.1080/14763141.2021.2016928] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The sport of gymnastics is undergoing a global examination of its culture and the relationship between the gymnast, coach and environment is a central focus. The aim of this review is to explore biomechanics and motor control research in skill development and technique selection in artistic gymnastics with a focus on the underlying concepts and scientific principles that allow performance enhancement, skill development and injury risk reduction. The current review examines peer reviewed papers from 2000 onwards, with a focus on contemporary approaches in the field of gymnastics research, and highlights several key directions for future gymnastics research. Based on our review and the integration of the models of Newell (1986) and Irwin et al. (2005), we recommend that future gymnastics research should embrace at the very least a multidisciplinary approach and aim for an interdisciplinary paradigm.
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Affiliation(s)
- R Farana
- University of Ostrava, Ostrava, Czech Republic
| | | | - T Fujihara
- Osaka University of Health and Sport Sciences, Osaka, Japan
| | - H E Wyatt
- Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand
| | - F Naundorf
- Institute for Applied Training Science Leipzig, Leipzig, Germany
| | - G Irwin
- University of Ostrava, Ostrava, Czech Republic.,Cardiff Metropolitan University, Cardiff, UK
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Trevithick B, Mellifont R, Sayers M. Wrist pain in gymnasts: Efficacy of a wrist brace to decrease wrist pain while performing gymnastics. J Hand Ther 2021; 33:354-360. [PMID: 30956069 DOI: 10.1016/j.jht.2019.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 02/07/2019] [Accepted: 03/03/2019] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN This was a clinical trial of prospective cohort. INTRODUCTION Wrist pain in gymnasts is a global phenomenon. Compression forces acting on wrists while performing gymnastics is a predisposing factor in the development of wrist pain and consequential injury of the distal radial physis in skeletally immature gymnasts. One approach to mitigate these forces is wrist bracing; however, studies on the efficacy of wrist braces to reduce wrist pain experienced by gymnasts are limited. PURPOSE OF THE STUDY The purpose of this study was to investigate the efficacy of an innovative design of a wrist brace to decrease gymnasts' wrist pain while performing gymnastics. METHODS A wrist brace was designed and trialled over 3 weeks by 48 male gymnasts (aged 8-22 years, levels 4-7) with wrist pain. Wrist pain was recorded on a visual analog scale of 1 to 10 before and after trial. Data analysis was performed using SPSS-22 (IBM Inc). Paired t-tests were performed to compare variables before and after trial, with effect size analyses used to quantify the relative magnitude of any differences. RESULTS Paired t-tests indicated the gymnasts reported significantly reduced pain (P = .002; 53.5%) while wearing the braces for training on the pommel, floor, and parallel bars. The overall large effect size value was practically significant (d = 0.902). DISCUSSION For any wrist brace to be effective, it needs to be implemented when the gymnast experiences wrist pain before an injury occurs. This would minimize the development of pain-provoked adaptive movement patterns that perpetuate dysfunction. CONCLUSIONS The brace with the volar gel pad is recommended to be worn as an adjunct to current strategies in management of gymnasts' wrist pain or as an injury prevention device in skeletally immature gymnasts.
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Affiliation(s)
- Beverly Trevithick
- Department of Health and Sport Sciences, University of the Sunshine Coast, Queensland, Australia.
| | - Rebecca Mellifont
- Department of Health and Sport Sciences, University of the Sunshine Coast, Queensland, Australia
| | - Mark Sayers
- Department of Health and Sport Sciences, University of the Sunshine Coast, Queensland, Australia
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A Review of Forward-Dynamics Simulation Models for Predicting Optimal Technique in Maximal Effort Sporting Movements. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The identification of optimum technique for maximal effort sporting tasks is one of the greatest challenges within sports biomechanics. A theoretical approach using forward-dynamics simulation allows individual parameters to be systematically perturbed independently of potentially confounding variables. Each study typically follows a four-stage process of model construction, parameter determination, model evaluation, and model optimization. This review critically evaluates forward-dynamics simulation models of maximal effort sporting movements using a dynamical systems theory framework. Organismic, environmental, and task constraints applied within such models are critically evaluated, and recommendations are made regarding future directions and best practices. The incorporation of self-organizational processes representing movement variability and “intrinsic dynamics” remains limited. In the future, forward-dynamics simulation models predicting individual-specific optimal techniques of sporting movements may be used as indicative rather than prescriptive tools within a coaching framework to aid applied practice and understanding, although researchers and practitioners should continue to consider concerns resulting from dynamical systems theory regarding the complexity of models and particularly regarding self-organization processes.
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Schaarup SO, Burgaard P, Johannsen FE. Surgical Repair of Complete Plantar Fascia Ruptures in High-Demand Power Athletes: An Alternative Treatment Option. J Foot Ankle Surg 2020; 59:195-200. [PMID: 31882140 DOI: 10.1053/j.jfas.2019.07.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 03/31/2019] [Accepted: 07/28/2019] [Indexed: 02/03/2023]
Abstract
Surgical repair of complete plantar fascia ruptures has not yet been reported in the literature. Operative technique and outcome are described in 2 gymnasts with heavy plyometric demands who received surgical repair compared with 3 athletes treated nonoperatively. Biomechanics and clinical implications are discussed. In the last 8 years, we have seen 5 high-demand athletes with total rupture of the plantar fascia. This is a retrospective clinical evaluation 1.5 to 8 years postinjury of all 5 patients using dynamic ultrasound, Foot Function Index, sports-specific questions, Foot Posture Index, and foot length. The operated gymnasts returned to the same level of performance within 12 months. None of the conservatively treated athletes returned to preinjury plyometric sports levels but reached a foot load capacity of distance running with the injured foot as limiting factor. Ultrasound with simultaneous dorsiflexion of the toes showed a normal fascia in the operated patients, but a slack fascia that tightened up only at terminal toe dorsiflexion in the conservatively treated group. According to the Foot Function Index, the operated patients reported no complaints, whereas the nonoperative group had clinical relevant impairments in activities of daily life. The Foot Posture Index in all nonoperated patients showed a relative shift toward pronation with increased foot length compared with the noninjured foot. The operated patients showed no difference in foot length but minimal shift into supination with a slightly altered arch contour. Surgical repair of plantar fascia ruptures is technically feasible to restore normal foot load capability with return to high-demand plyometric sports within 12 months.
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Affiliation(s)
| | - Peder Burgaard
- Surgeon, Rigshospitalet, Department of Orthopedic Surgery, Copenhagen, Denmark
| | - Finn Elkjær Johannsen
- Sports Physician and Scientist, Bispebjerg Hospital, Institute of Sportsmedicine Copenhagen, University of Copenhagen, Copenhagen, Denmark
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Linderman SE, Scarborough DM, Oh LS. The Relationship of Shoulder and Elbow Stresses and Upper Limb Contact Order During a Round-Off Back Handspring. PM R 2020; 13:73-80. [PMID: 32174028 DOI: 10.1002/pmrj.12365] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 02/26/2020] [Accepted: 03/05/2020] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Despite high injury incidence rates in gymnastics, there is a paucity of data characterizing upper extremity injury causation and biomechanical risk factors. This study investigated contact forces across multiple joints in both upper extremities during a round-off back handspring (ROBHS), a fundamental gymnastics tumbling maneuver. OBJECTIVE (1) To characterize the three-dimensional (3-D) biomechanics of the sequential, asynchronous contact of each upper extremity with the ground during a ROBHS using 3-D motion capture, and (2) to evaluate potential correlations to upper extremity injury risk. DESIGN Observational cross-sectional study. SETTING Controlled laboratory environment. PARTICIPANTS Fourteen competitive female gymnasts aged 10-21 years (mean age: 16.6 ± 3.1 years) (1) participating on a competitive gymnastics team; (2) capable of successfully completing a ROBHS; and (3) free of reported injury at enrollment. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Variables evaluated include joint angle, torque, compression force, ground reaction force (GRF), time to peak GRF, and limb loading rates. Variables were analyzed at the wrist, elbow, and shoulder of both limbs at ground contact. The hypothesis that these dependent variables would differ by ROBHS upper extremity contact order was formulated retrospectively after data collection. RESULTS The first contact limb experienced significantly greater extension torque at the elbow (first: 48.89 ± 18.01 Nm, second: 22.49 ± 9.19 Nm; P = .014; CI 95% [14.83, 37.97]) and faster time to peak GRF (P < .001, CI 95% [-1.79, -0.99]). The second limb of contact experienced significantly greater abduction torque at the shoulder (P = .007; CI 95% [-21.58,-8.08]) and anterior-posterior GRF at contact (P = .007; CI 95% [-1.06,-0.26]). CONCLUSIONS The biomechanical differences between contact limbs during the ROBHS may lead to different injury risk. Recognition of the stresses at the elbow and shoulder for both limbs also provides new insight for rehabilitation clinicians to consider when guiding patients to return to gymnastics activity after injury.
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Affiliation(s)
- Shannon E Linderman
- Sports Medicine Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA
| | - Donna Moxley Scarborough
- Sports Medicine Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA
| | - Luke S Oh
- Sports Medicine Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA
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Root H, Marshall AN, Thatcher A, Valier ARS, Valovich McLeod TC, Bay RC. Sport Specialization and Fitness and Functional Task Performance Among Youth Competitive Gymnasts. J Athl Train 2020; 54:1095-1104. [PMID: 31633414 DOI: 10.4085/1062-6050-397-18] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
CONTEXT Gymnastics trains fundamental movement skills but has high rates of early sport specialization. Early specialization is associated with increased injury risk. Gymnasts devote time to developing technical skill, but whether specialization status influences performance is unknown. OBJECTIVE To describe the participation and specialization characteristics of youth club gymnastics participants and determine whether the level of specialization is associated with fitness and functional task performance. DESIGN Retrospective cross-sectional study. SETTING A single gymnastics facility. PATIENTS OR OTHER PARTICIPANTS Data on youth gymnasts (n = 131; 84 females, 47 males; age = 10.9 ± 2.9 years, height = 142.14 ± 16.23 cm, mass = 38.15 ± 12.93 kg) were reviewed. MAIN OUTCOME MEASURE(S) Specialization was assessed using a 3-tiered classification. Fitness measurements consisted of the Gymnastics Functional Measurement Tool, Men's Gymnastics Functional Measurement Tool, and core strength. Functional tasks evaluated hop performance, dynamic balance, and jump-landing technique. Separate analyses of covariance, covaried by age, hours of training, and years of gymnastics participation, were used to identify differences in fitness and functional performance among specialization groups. Pearson product correlations were calculated to evaluate the relationships between training hours per week and years in gymnastics with fitness and functional performance. RESULTS Most gymnasts were classified as moderately (50.4%, n = 66) or highly (35.1%, n = 46) specialized. Only 14.5% (n = 19) were classified as having a low level of specialization. Weak to moderate correlations were present between years in gymnastics and most fitness tasks. Moderate to strong correlations were noted between training hours per week and most fitness tasks. Low-specialization gymnasts scored lower on right lower extremity Y-balance (P = .004), upper left extremity Y-balance (P = .033), and right hop performance (P = .039) tests. CONCLUSIONS Gymnasts reported high proportions of moderate to high specialization, and many exceeded guidelines for hours participating in gymnastics per week. We did not observe clinically meaningful group differences among specialization status and fitness or functional movement tasks, indicating no clear benefit of gymnastics training to the exclusion of other sports for increased performance.
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Affiliation(s)
- Hayley Root
- Athletic Training Programs, A.T. Still University, Mesa, AZ.,Dr Root is now with Monmouth University, West Long Branch, NJ and Dr Marshall is now with Appalachian State University, Boone, NC
| | | | | | - Alison R Snyder Valier
- Athletic Training Programs, A.T. Still University, Mesa, AZ.,School of Osteopathic Medicine in Arizona, Mesa.,Research Support, A.T. Still University, Mesa
| | - Tamara C Valovich McLeod
- Athletic Training Programs, A.T. Still University, Mesa, AZ.,School of Osteopathic Medicine in Arizona, Mesa
| | - R Curtis Bay
- Arizona School of Health Sciences, A.T. Still University, Mesa
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Lippa NM, Collins PK, Bonacci J, Piland SG, Rawlins JW, Gould TE. Mechanical ageing performance of minimalist and traditional footwear foams. FOOTWEAR SCIENCE 2016. [DOI: 10.1080/19424280.2016.1228702] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Nadine M. Lippa
- School of Kinesiology, The University of Southern Mississippi, Hattiesburg, MS, USA
- School of Polymers and High Performance Materials, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - Paul K. Collins
- Mechanical Engineering, Deakin University, Waurn Ponds, Australia
| | - Jason Bonacci
- School of Exercise & Nutrition Sciences, Deakin University, Waurn Ponds, Australia
| | - Scott G. Piland
- School of Kinesiology, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - James W. Rawlins
- School of Polymers and High Performance Materials, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - Trenton E. Gould
- School of Kinesiology, The University of Southern Mississippi, Hattiesburg, MS, USA
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Mizrahi J. Mechanical Impedance and Its Relations to Motor Control, Limb Dynamics, and Motion Biomechanics. J Med Biol Eng 2015; 35:1-20. [PMID: 25750604 PMCID: PMC4342527 DOI: 10.1007/s40846-015-0016-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 08/28/2014] [Indexed: 11/27/2022]
Abstract
The concept of mechanical impedance represents the interactive relationship between deformation kinematics and the resulting dynamics in human joints or limbs. A major component of impedance, stiffness, is defined as the ratio between the force change to the displacement change and is strongly related to muscle activation. The set of impedance components, including effective mass, inertia, damping, and stiffness, is important in determining the performance of the many tasks assigned to the limbs and in counteracting undesired effects of applied loads and disturbances. Specifically for the upper limb, impedance enables controlling manual tasks and reaching motions. In the lower limb, impedance is responsible for the transmission and attenuation of impact forces in tasks of repulsive loadings. This review presents an updated account of the works on mechanical impedance and its relations with motor control, limb dynamics, and motion biomechanics. Basic questions related to the linearity and nonlinearity of impedance and to the factors that affect mechanical impedance are treated with relevance to upper and lower limb functions, joint performance, trunk stability, and seating under dynamic conditions. Methods for the derivation of mechanical impedance, both those for within the system and material-structural approaches, are reviewed. For system approaches, special attention is given to methods aimed at revealing the correct and sufficient degree of nonlinearity of impedance. This is particularly relevant in the design of spring-based artificial legs and robotic arms. Finally, due to the intricate relation between impedance and muscle activity, methods for the explicit expression of impedance of contractile tissue are reviewed.
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Affiliation(s)
- Joseph Mizrahi
- Department of Biomedical Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel
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Bradshaw EJ, Hume PA. Biomechanical approaches to identify and quantify injury mechanisms and risk factors in women's artistic gymnastics. Sports Biomech 2012; 11:324-41. [PMID: 23072044 DOI: 10.1080/14763141.2011.650186] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Targeted injury prevention strategies, based on biomechanical analyses, have the potential to help reduce the incidence and severity of gymnastics injuries. This review outlines the potential benefits of biomechanics research to contribute to injury prevention strategies for women's artistic gymnastics by identification of mechanisms of injury and quantification of the effects of injury risk factors. One hundred and twenty-three articles were retained for review after searching electronic databases using key words, including 'gymnastic', 'biomech*', and 'inj*', and delimiting by language and relevance to the paper aim. Impact load can be measured biomechanically by the use of instrumented equipment (e.g. beatboard), instrumentation on the gymnast (accelerometers), or by landings on force plates. We need further information on injury mechanisms and risk factors in gymnastics and practical methods of monitoring training loads. We have not yet shown, beyond a theoretical approach, how biomechanical analysis of gymnastics can help reduce injury risk through injury prevention interventions. Given the high magnitude of impact load, both acute and accumulative, coaches should monitor impact loads per training session, taking into consideration training quality and quantity such as the control of rotation and the height from which the landings are executed.
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Affiliation(s)
- Elizabeth J Bradshaw
- Centre for Physical Activity Across the Lifespan, School of Exercise Science, Australian Catholic University, Melbourne, Australia.
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Allen S, King M, Yeadon M. Models incorporating pin joints are suitable for simulating performance but unsuitable for simulating internal loading. J Biomech 2012; 45:1430-6. [DOI: 10.1016/j.jbiomech.2012.02.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 02/17/2012] [Accepted: 02/21/2012] [Indexed: 10/28/2022]
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