A talonavicular fracture is a form of foot fracture that involves the talus and the navicular bones. This sort of fracture is typically triggered by a sudden injury. Management of talonavicular fracture commonly involves immobilizing the foot and ankle with a cast or brace to allow the bones to heal properly. In some instances, surgery could be necessary to realign the bones to ensure appropriate healing. This article presents a middle-aged female, a professional Pilates teacher who suffered an injury to her left talonavicular joint (TNJ) which led to chondral injury and subchondral talar fracture, with an accelerated traumatic TNJ osteoarthritis. She had significant symptoms that interfered with her daily activities and work. She failed anti-inflammatory medicine, intra-articular steroid, and platelet-rich plasma (PRP) combined with hyaluronic acid injections. She was offered surgical debridement of cartilage and fusion of the TNJ, instead, she elected experimental intra-articular autologous fat-derived expanded mesenchymal (MSCs) combined with PRP. She reported dramatic clinical improvement two months post-therapy, and a gradual return to her loved work with an MRI six months post-treatment revealing bone remodeling and complete healing of the fracture with associated articular and peri-articular high signals hypothesizing inflammatory healing response rather than the pathological inflammation given she had significant improvement of her clinical presentation and function. This case demonstrates the use of MSC therapy combined with PRP as a non-surgical approach in traumatic chondral injuries and subchondral fracture letting joint fusion as a last resort. Of note, she failed the intra-articular trial of PRP combined with hyaluronic acid while a positive result was achieved when expanded MSCs were combined with PRP as a superior regenerative therapy. We need a large randomized controlled trial to confirm our findings.
{"title":"Talonavicular Subchondral Fracture Healing on MRI Post Single Autologous Fat-Derived Expanded Mesenchymal Stem Cell Therapy: A Case Report","authors":"H. Mubark","doi":"10.37722/aoasm.2023201","DOIUrl":"https://doi.org/10.37722/aoasm.2023201","url":null,"abstract":"A talonavicular fracture is a form of foot fracture that involves the talus and the navicular bones. This sort of fracture is typically triggered by a sudden injury. Management of talonavicular fracture commonly involves immobilizing the foot and ankle with a cast or brace to allow the bones to heal properly. In some instances, surgery could be necessary to realign the bones to ensure appropriate healing. This article presents a middle-aged female, a professional Pilates teacher who suffered an injury to her left talonavicular joint (TNJ) which led to chondral injury and subchondral talar fracture, with an accelerated traumatic TNJ osteoarthritis. She had significant symptoms that interfered with her daily activities and work. She failed anti-inflammatory medicine, intra-articular steroid, and platelet-rich plasma (PRP) combined with hyaluronic acid injections. She was offered surgical debridement of cartilage and fusion of the TNJ, instead, she elected experimental intra-articular autologous fat-derived expanded mesenchymal (MSCs) combined with PRP. She reported dramatic clinical improvement two months post-therapy, and a gradual return to her loved work with an MRI six months post-treatment revealing bone remodeling and complete healing of the fracture with associated articular and peri-articular high signals hypothesizing inflammatory healing response rather than the pathological inflammation given she had significant improvement of her clinical presentation and function. This case demonstrates the use of MSC therapy combined with PRP as a non-surgical approach in traumatic chondral injuries and subchondral fracture letting joint fusion as a last resort. Of note, she failed the intra-articular trial of PRP combined with hyaluronic acid while a positive result was achieved when expanded MSCs were combined with PRP as a superior regenerative therapy. We need a large randomized controlled trial to confirm our findings.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78374810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Territorial Model of Integrated Epidemical Control as a Functional Standard of a Practical Epidemiology","authors":"A. Andryan","doi":"10.37722/aoasm.2022403","DOIUrl":"https://doi.org/10.37722/aoasm.2022403","url":null,"abstract":"","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89051826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maxwell Davison-Kerwood, Elana Gordy, J. Tafur, Y. Lin, Nicholas Boroda, Mark H. Gonzalez*
Background: Several studies have demonstrated the decrease of public interest in elective orthopaedic surgeries throughout the beginning and middle of the COVID-19 pandemic, but none have assessed the return, if any, of public interest as the pandemic has progressed. Questions/Purpose: Apply a user-friendly tool and replicable methodology to (1) determine differential impacts of COVID-19 on search frequencies for exploratory and interventional search terms; (2) evaluate if public interest towards some common orthopaedic symptoms and their respective elective procedures have returned to pre-pandemic baseline. Method: Google search frequencies for common orthopaedic procedures and symptoms were extracted from Google Extended Trends for Health (GETH) between January 7th, 2018, and January 15th, 2022, using the Google Trends Information Extraction Tool. Queried terms were split into two categories: exploratory and interventional. Control limit analysis was performed for each search term to determine special cause variations and assess any recovery. Results: All search terms saw significant decreases the week of March 15th, 2020, and five of the six saw at least one more drop during the 2020 holiday season. Search volumes for exploratory terms initially fell less and recovered nearly four times faster compared to search volumes for interventional terms, but volatility of public interest was seen until the end of the study window. Conclusions: Public interest in elective orthopaedic procedures continues to be chaotic during this pandemic. This study is the first to assess the initial recovery of public interest in elective orthopaedic procedures in the COVID-19 era using a novel application of the Google Trends Information Extraction Tool and provides a timely update on changes in public perception as the pandemic has progressed. These results can be used to better understand, quantify, and potentially anticipate the interests of the national patient population and tailor care, public outreach programs, or policy based on real-time search trends.
{"title":"Volatility of Public Interest in Orthopaedics during the COVID-19 Pandemic","authors":"Maxwell Davison-Kerwood, Elana Gordy, J. Tafur, Y. Lin, Nicholas Boroda, Mark H. Gonzalez*","doi":"10.37722/aoasm.2022401","DOIUrl":"https://doi.org/10.37722/aoasm.2022401","url":null,"abstract":"Background: Several studies have demonstrated the decrease of public interest in elective orthopaedic surgeries throughout the beginning and middle of the COVID-19 pandemic, but none have assessed the return, if any, of public interest as the pandemic has progressed. Questions/Purpose: Apply a user-friendly tool and replicable methodology to (1) determine differential impacts of COVID-19 on search frequencies for exploratory and interventional search terms; (2) evaluate if public interest towards some common orthopaedic symptoms and their respective elective procedures have returned to pre-pandemic baseline. Method: Google search frequencies for common orthopaedic procedures and symptoms were extracted from Google Extended Trends for Health (GETH) between January 7th, 2018, and January 15th, 2022, using the Google Trends Information Extraction Tool. Queried terms were split into two categories: exploratory and interventional. Control limit analysis was performed for each search term to determine special cause variations and assess any recovery. Results: All search terms saw significant decreases the week of March 15th, 2020, and five of the six saw at least one more drop during the 2020 holiday season. Search volumes for exploratory terms initially fell less and recovered nearly four times faster compared to search volumes for interventional terms, but volatility of public interest was seen until the end of the study window. Conclusions: Public interest in elective orthopaedic procedures continues to be chaotic during this pandemic. This study is the first to assess the initial recovery of public interest in elective orthopaedic procedures in the COVID-19 era using a novel application of the Google Trends Information Extraction Tool and provides a timely update on changes in public perception as the pandemic has progressed. These results can be used to better understand, quantify, and potentially anticipate the interests of the national patient population and tailor care, public outreach programs, or policy based on real-time search trends.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87520704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The competitiveness of sport continues to increase with the corollary increase in sport technology. Sport technology is an umbrella that encompasses biometrics, wearable technology, and data analytics. Central to sport technology is a close relative, sport analytics. If sport technology is the general term for measuring what the athlete is experiencing from a performance standpoint, then sport analytics is the process of cleaning, processing, and manipulating these variables into meaningful output. The number of variables that can be collected are extensive but can be generally categorized into internal and external metrics. Internal metrics seek to measure how the athlete responds to training load (HR, HRV, Hormones, Sleep patterns). External metrics seek to measure how much work the athlete is performing (Live player tracking, Countermovement Jump, Isometric Mid-Thigh Pull). Internal and external metrics are continually evolving in the manner they are collected which depends on the time, resources, and staff allocation of an organization. This is where the collaboration between sport scientists and sport performance staff can come together to overlay variables and find relationships. There is no correct way to analyze data because each organization will have their own goals. For example, data could be used for injury mitigation, readiness assessment, or simply to establish baseline values. Some common statistical techniques that can be used include correlation, regression, and principal component analysis (PCA). However, performing these calculations may be complex and some organizations may lack a practitioner which can limit their ability to use data. In seeing this gap, the authors propose a qualitative approach to workload monitoring made for basketball but can be applied to most sports. The purpose of this paper is to empower sports performance staffs to learn and implement the basics of qualitative athletic monitoring approach.
{"title":"Athletic Monitoring in Basketball: A Qualitative Exploratory Approach","authors":"B. Serrano, M. Comer, Geoff Puls","doi":"10.37722/aoasm.2022302","DOIUrl":"https://doi.org/10.37722/aoasm.2022302","url":null,"abstract":"The competitiveness of sport continues to increase with the corollary increase in sport technology. Sport technology is an umbrella that encompasses biometrics, wearable technology, and data analytics. Central to sport technology is a close relative, sport analytics. If sport technology is the general term for measuring what the athlete is experiencing from a performance standpoint, then sport analytics is the process of cleaning, processing, and manipulating these variables into meaningful output. The number of variables that can be collected are extensive but can be generally categorized into internal and external metrics. Internal metrics seek to measure how the athlete responds to training load (HR, HRV, Hormones, Sleep patterns). External metrics seek to measure how much work the athlete is performing (Live player tracking, Countermovement Jump, Isometric Mid-Thigh Pull). Internal and external metrics are continually evolving in the manner they are collected which depends on the time, resources, and staff allocation of an organization. This is where the collaboration between sport scientists and sport performance staff can come together to overlay variables and find relationships. There is no correct way to analyze data because each organization will have their own goals. For example, data could be used for injury mitigation, readiness assessment, or simply to establish baseline values. Some common statistical techniques that can be used include correlation, regression, and principal component analysis (PCA). However, performing these calculations may be complex and some organizations may lack a practitioner which can limit their ability to use data. In seeing this gap, the authors propose a qualitative approach to workload monitoring made for basketball but can be applied to most sports. The purpose of this paper is to empower sports performance staffs to learn and implement the basics of qualitative athletic monitoring approach.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80284047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kacem Nejah, Naffeti Chokri, Grayri Ramzi, Elloumi Ali
The goal of our study is to empower people with autism to communicate and understand the world around them. It is about teaching skills and developing autonomy in life in society based on an education oriented to psychomotor intervention strategies while taking into account the particularities of the autistic person and the model of pedagogical and psychosocial skills of the teacher to create the best conditions, This by relying especially on the curriculum of the ESDM (Early start Denver model. Rogers, S., Dawson, G., 2013) [1] focused on the development of cognitive skills, including access to symbolism and communication for the construction of the intervention plan. Our work therefore ensures the development of a model of professional skills of the teacher in charge of building an intervention plan for autistic children in Tunisia. The aim of the programmed is to avoid this pathological process: The objective of this model is to reintegrate the child into the social loop, teaching him the basic elements of social life and filling the learning gaps that have accumulated over time The results show that the role of teachers tasked with developing the social and pedagogical skills of people with autism is based much more on the mode Active motor communication and adequate transfer of knowledge direct towards cooperation and understanding whose aim is integration and adaptation, learning is therefore a means and action of knowledge transfer which is only one component of the model of professional identification skills of the teacher.
{"title":"Motor Education and Intervention Strategies for the Autistic Child, Modeling of the Psychomotor Therapist's Skills and Construction of the Intervention Plan","authors":"Kacem Nejah, Naffeti Chokri, Grayri Ramzi, Elloumi Ali","doi":"10.37722/aoasm.2021403","DOIUrl":"https://doi.org/10.37722/aoasm.2021403","url":null,"abstract":"The goal of our study is to empower people with autism to communicate and understand the world around them. It is about teaching skills and developing autonomy in life in society based on an education oriented to psychomotor intervention strategies while taking into account the particularities of the autistic person and the model of pedagogical and psychosocial skills of the teacher to create the best conditions, This by relying especially on the curriculum of the ESDM (Early start Denver model. Rogers, S., Dawson, G., 2013) [1] focused on the development of cognitive skills, including access to symbolism and communication for the construction of the intervention plan. Our work therefore ensures the development of a model of professional skills of the teacher in charge of building an intervention plan for autistic children in Tunisia. The aim of the programmed is to avoid this pathological process: The objective of this model is to reintegrate the child into the social loop, teaching him the basic elements of social life and filling the learning gaps that have accumulated over time The results show that the role of teachers tasked with developing the social and pedagogical skills of people with autism is based much more on the mode Active motor communication and adequate transfer of knowledge direct towards cooperation and understanding whose aim is integration and adaptation, learning is therefore a means and action of knowledge transfer which is only one component of the model of professional identification skills of the teacher.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80865435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
But crisis, as Thomas Kuhn tells us, is not something bad that we need to exorcise to improve our lives. Crisis, according to Kuhn, is an important step in the development process that alerts us to dysfunctions that we have already felt (which means that we have already identified the problem) and which leads, consequently, to search for solutions that allow us to overcome the difficulties we face.
{"title":"Conceptual Tools to Think Man","authors":"F. Almada, C. Fernando, António Vicente","doi":"10.37722/aoasm.2021402","DOIUrl":"https://doi.org/10.37722/aoasm.2021402","url":null,"abstract":"But crisis, as Thomas Kuhn tells us, is not something bad that we need to exorcise to improve our lives. Crisis, according to Kuhn, is an important step in the development process that alerts us to dysfunctions that we have already felt (which means that we have already identified the problem) and which leads, consequently, to search for solutions that allow us to overcome the difficulties we face.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87827290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Gimblet, T. Pellinger, J. Lamanca, A. Ortlip, M. Vance, M. Shepherd, Aaron T. Moore, T. Staudmyer, Z. Townsend, T. Werner
There are some important issues relating to the impact of acute creatine monohydrate supplementation on AS in the major elastic arteries and lower leg anterior compartment pressure. This study investigated the effects of acute creatine monohydrate supplementation on arterial stiffness (AS) and skeletal muscle oxygen saturation (SmO2) in young men. A total of 20 male, physically active participants were randomized in a double-blind fashion to placebo (PL) (n=10, 22.9±3.1 yrs) or creatine (CM) (n=10, 21.3±1.8yrs) groups. Subjects received 0.3 g/kg/day creatine monohydrate or placebo in gelatin capsules for 7 days. Ultrasonography of the carotid artery, applanation tonometry, submaximal exercise tests (10-minute treadmill activity at 3.7 mph and 9% incline), and SmO2measurements were conducted at baseline and on day 7 of the study period. There was a significant time effect (P<0.05) in the CM group on central systolic blood pressure (cSBP) (130±22 mmHg to 112±38 mmHg), central pulse pressure (cPP) (64±21 mmHg to 58±21 mmHg) and arterial compliance (AC) (1.09±0.35 mm2/mmHg x 10-1to 0.86±0.85 mm2/mmHg x 10-1). Using a randomly controlled, doubleblind trial, acute creatine supplementation does appear to impact vascular compliance or oxygen saturation in skeletal muscle in young, healthy males.
{"title":"Effects of Acute Creatine Monohydrate Supplementation on Arterial Stiffness and Muscle Oxygen Saturation in Young Men","authors":"C. Gimblet, T. Pellinger, J. Lamanca, A. Ortlip, M. Vance, M. Shepherd, Aaron T. Moore, T. Staudmyer, Z. Townsend, T. Werner","doi":"10.37722/aoasm.2021401","DOIUrl":"https://doi.org/10.37722/aoasm.2021401","url":null,"abstract":"There are some important issues relating to the impact of acute creatine monohydrate supplementation on AS in the major elastic arteries and lower leg anterior compartment pressure. This study investigated the effects of acute creatine monohydrate supplementation on arterial stiffness (AS) and skeletal muscle oxygen saturation (SmO2) in young men. A total of 20 male, physically active participants were randomized in a double-blind fashion to placebo (PL) (n=10, 22.9±3.1 yrs) or creatine (CM) (n=10, 21.3±1.8yrs) groups. Subjects received 0.3 g/kg/day creatine monohydrate or placebo in gelatin capsules for 7 days. Ultrasonography of the carotid artery, applanation tonometry, submaximal exercise tests (10-minute treadmill activity at 3.7 mph and 9% incline), and SmO2measurements were conducted at baseline and on day 7 of the study period. There was a significant time effect (P<0.05) in the CM group on central systolic blood pressure (cSBP) (130±22 mmHg to 112±38 mmHg), central pulse pressure (cPP) (64±21 mmHg to 58±21 mmHg) and arterial compliance (AC) (1.09±0.35 mm2/mmHg x 10-1to 0.86±0.85 mm2/mmHg x 10-1). Using a randomly controlled, doubleblind trial, acute creatine supplementation does appear to impact vascular compliance or oxygen saturation in skeletal muscle in young, healthy males.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75030595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sheena J. Amin, Steven DeDroda, J. Gil, M. Mulcahey
Shoulder pathology causes debilitating pain and can prevent individuals from participating in their activities of daily living. Following appropriate evaluation and failure of non-operative management, elective shoulder arthroscopy may be performed to alleviate symptoms in these patients. The purpose of this study was to determine the relationship between baseline patient-reported outcome measures (proms) and demographics, social factors, and medical comorbidities in patients undergoing elective shoulder arthroscopy.
{"title":"Association of Baseline Patient-Reported Outcome Measures with Comorbidities in Patients Undergoing Elective Shoulder Arthroscopy","authors":"Sheena J. Amin, Steven DeDroda, J. Gil, M. Mulcahey","doi":"10.37722/aoasm.2021502","DOIUrl":"https://doi.org/10.37722/aoasm.2021502","url":null,"abstract":"Shoulder pathology causes debilitating pain and can prevent individuals from participating in their activities of daily living. Following appropriate evaluation and failure of non-operative management, elective shoulder arthroscopy may be performed to alleviate symptoms in these patients. The purpose of this study was to determine the relationship between baseline patient-reported outcome measures (proms) and demographics, social factors, and medical comorbidities in patients undergoing elective shoulder arthroscopy.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76866286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Charles C. Williams, Paul T. Donahue, Samuel J Wilson, J. Mouser, C. Hill, Lauren A. Luginsland, J. Gdovin, Chip Wade, John C. Garner
Swinging a bat is considered a sequential movement requiring coordinated muscle activation during each movement phase. There are a limited number of studies investigating swing performance as it relates to electromyography. The purpose of this study was to investigate the muscle activation pattern of the stride leg in respect to the phases within the swing and throughout the various locations within the strike zone in collegiate baseball players. Surface electromyography (EMG) examined the muscle activation patterns of the stride leg gluteus maximus (GM), vastus medialis (VMO), semitendinosus (H), medial gastrocnemius (MG), and tibilais anterior (TA) in 13 Division I college baseball players. The swing was broken down into three distinct phases for analysis (stride, transition, swing) determined by the use of a motion capture system. Participants completed counterbalanced swing trials in various locations of their respective strike zone. Repeated measures ANOVA were used to examine possible differences in EMG over the strike zone independent of each phase of the swing. Significant main effect differences in percent activation and mean muscle activity of the lower extremity were seen in trials completed at various tee heights and tee placements within their respective strike zone independent of swing phase (p<.05). Significant main effect differences in percent activation were also seen in the phases of the swing for the VMO, H, MG and TA (p<0.05). This information can provide insight to strength and conditioning professionals to focus on sport specific exercises within these distinct phases of the swing.
{"title":"Examining Changes in Electromyography during Swing Performance in Various Strike Zone Locations of Collegiate Baseball Players","authors":"Charles C. Williams, Paul T. Donahue, Samuel J Wilson, J. Mouser, C. Hill, Lauren A. Luginsland, J. Gdovin, Chip Wade, John C. Garner","doi":"10.37722/aoasm.2021202","DOIUrl":"https://doi.org/10.37722/aoasm.2021202","url":null,"abstract":"Swinging a bat is considered a sequential movement requiring coordinated muscle activation during each movement phase. There are a limited number of studies investigating swing performance as it relates to electromyography. The purpose of this study was to investigate the muscle activation pattern of the stride leg in respect to the phases within the swing and throughout the various locations within the strike zone in collegiate baseball players. Surface electromyography (EMG) examined the muscle activation patterns of the stride leg gluteus maximus (GM), vastus medialis (VMO), semitendinosus (H), medial gastrocnemius (MG), and tibilais anterior (TA) in 13 Division I college baseball players. The swing was broken down into three distinct phases for analysis (stride, transition, swing) determined by the use of a motion capture system. Participants completed counterbalanced swing trials in various locations of their respective strike zone. Repeated measures ANOVA were used to examine possible differences in EMG over the strike zone independent of each phase of the swing. Significant main effect differences in percent activation and mean muscle activity of the lower extremity were seen in trials completed at various tee heights and tee placements within their respective strike zone independent of swing phase (p<.05). Significant main effect differences in percent activation were also seen in the phases of the swing for the VMO, H, MG and TA (p<0.05). This information can provide insight to strength and conditioning professionals to focus on sport specific exercises within these distinct phases of the swing.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78561567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Context: Athletic trainers working in the secondary school setting is work can be hired through the institutions themselves or outreach through various clinics. Recently, researchers have found discrepancies in the job descriptions for athletic trainers can affect their ability to perform their necessary duties. Objective: To compare the differences in duties, job descriptions, and satisfaction between athletic trainers employed in the secondary school setting through outreach contracts and those employed by the schools or districts. Design: Cross-sectional study. Setting: Web-based online survey. Patient or Other Participants: A total of 82 individuals answered the survey, 68 of which identified themselves as certified athletic trainers working in the secondary school setting. Results: Many athletic trainers who had similar expectations in their hours or job descriptions to their actual duties had higher job satisfaction than those who did not. There was no difference found between athletic trainers who were outreach and those who were staff athletic trainers. Conclusions: Accuracy of job descriptions and expectations had positive job satisfaction. We believe that if athletic trainers are given appropriate job descriptions and expectations concerning their roles on campus, they will be better equipped to perform as needed.
{"title":"Comparing Responsibilities between Outreach and Staff Secondary School Athletic Trainers","authors":"T. Brown, Ronald James Ting, V. Fiaud","doi":"10.37722/aoasm.2021302","DOIUrl":"https://doi.org/10.37722/aoasm.2021302","url":null,"abstract":"Context: Athletic trainers working in the secondary school setting is work can be hired through the institutions themselves or outreach through various clinics. Recently, researchers have found discrepancies in the job descriptions for athletic trainers can affect their ability to perform their necessary duties. Objective: To compare the differences in duties, job descriptions, and satisfaction between athletic trainers employed in the secondary school setting through outreach contracts and those employed by the schools or districts. Design: Cross-sectional study. Setting: Web-based online survey. Patient or Other Participants: A total of 82 individuals answered the survey, 68 of which identified themselves as certified athletic trainers working in the secondary school setting. Results: Many athletic trainers who had similar expectations in their hours or job descriptions to their actual duties had higher job satisfaction than those who did not. There was no difference found between athletic trainers who were outreach and those who were staff athletic trainers. Conclusions: Accuracy of job descriptions and expectations had positive job satisfaction. We believe that if athletic trainers are given appropriate job descriptions and expectations concerning their roles on campus, they will be better equipped to perform as needed.","PeriodicalId":7354,"journal":{"name":"Advances in Orthopedics and Sports Medicine","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81624398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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