bluuebunny/crossref_metadata_2025_split huggingface dataset:
Análise da hidrodinâmica costeira e ambiental da praia de Areia Preta em Natal/RN
Authors: Nascimento Vandetania Xavier , Lima Zuleide Maria Carvalho 
Published: June 2023

O objetivo dessa pesquisa foi compreender as causas da erosão costeira através da caracterização do ambiente praial, determinando perfis praiais e análise hidrodinâmica, com os principais métodos para compreender os processos costeiros. O recorte espacial dessa pesquisa compreende um ponto, localizado na praia urbana de Areia Preta, zona leste da cidade do Natal, capital do Rio Grande do Norte, litoral oriental do estado. A metodologia consistiu de levantamento bibliográfico, caracterização ambiental, levantamento topográfico transversal à praia nos compartimentos do pós-praia, estirâncio e ante-praia, através da Métodologia da “Stádia” Birkemeier (1981) e coleta de dados hidrodinâmicos baseado na metodologia de Mueher (2011), além de registros fotográficos.
HUBUNGAN ANTARA KECEPATAN DAN KELINCAHAN TERHADAP KEMAMPUAN MENGGIRING BOLA PADA PEMAIN SEPAKBOLA TUNAS HARAPAN
Authors: . M. Ryan Padli , . Syarif Hidayat, S.Pd., M.Pd. , . Ketut Chandra Adinata Kusuma, S.Pd., M.P 
Published: June 2023

Penelitianinibertujuanuntukmengujihubunganantarakecepatandankelincahanterhadapkemampuanmenggiring bola. JenisPenelitianiniadalahpenelitiankorelasional.Subjekdalam penelitianini adalahpemainsepakbolaklub Tunas HarapanTahun 2020 denganjumlah 20 orang danrentangusianya 18 sampai 20 tahun. Objekdalampenelitianiniadalahkecepatan, kelincahan, dan kemampuanmenggiring bola.Instrumen yang digunakanuntukmengumpulkan data yaitu 30 meter sprint test untukmengukurkecepatanlari, Illinois agility run untukmengukurkelincahan, dantesmengiring bola.Hasilpenghitungankorelasigandadiperolehhasilnilai r hitung> r tabelyaitu= 0.602 > 0.444. Saran bagipelatihsepakbolaklub Tunas Harapan agar dalamlatihanlebihmeningkatkankecepatanlaridankelincahanpemain.Kecepatandalammenggirirng bola digunakanuntukmemenangkan duel saatmenggirirng bola danuntukmelewatipertahananlawan, kelincahandalammenggiring bola digunakanuntukmelewatihadanganpemainlawandenganmelakukangerakanmerubaharah yang cepatsaatmenggiring bola.
Kata Kunci : kecepatanlari, kelincahan,menggiring bola This study aims to examine the relationship between speed and agility on the ability to dribble. This type of research is correlational research. The subjects in this study were Tunas Harapan club soccer players in 2020 with a total of 20 people and their age range was 18 to 20 years.The objects in this study were speed, agility, and dribbling skills. The instruments used to collect data were 30 meter sprint tests to measure running speed, Illinois agility run to measure agility, and dribbling tests. The results of the calculation of multiple correlations obtained r count value>r table that is = 0.602> 0.444. Suggestions for the club soccer coach shoots hope that in training further improve running speed and agility of players. Speed in dribbling is used to win a duel when dribbling and to get past the opponent’s defense by making a quick change of direction when dribbling.keyword : running speed, agility, dribbling
Localization of center of gravity of helmet systems in the human anatomical frame using 3D laser scanners
Authors: Nayak Sabyasachi , Sekhar Binu M , Tripathy Neeraj Kumar , Joshi Vijay Vishnu 
Published: June 2023

Introduction:
An accurate assessment of the Center of Gravity (CoG) and mass properties of aircrew helmets and helmet-mounted devices is an essential requirement to predict neck injury potential. Conventionally, trifilar pendulum method is used for the assessment of CoG shift and calculation of force moment and mass moment. In this study, a new procedure is described to obtain a more precise measurement of the CoG of the helmet as well as the combined head and helmet system.

Material and Methods:
Measurement of the helmet mass and CoG properties was done using a trifilar pendulum and the geometrical properties of the helmet and head were obtained using a 3D laser scanner. The required coordinate transformations from the laboratory frame to the anatomical frame using the 3D scanner as a coordinate digitizer. The head sizes used in the calculations ranged from small female head to large male head and a single average head CoG position was used to calculate the combined head and helmet CoG.

Results:
The error of the 3D scanner method for combined head and helmet CoG measurement as compared to the trifilar pendulum method varied between 0.3 mm and 0.4 mm with an average error of 0.4 mm. This method could also successfully calculate the combined CoG of the helmet on various head sizes ranging from small female to large male heads.

Conclusion:
The 3D laser scanner-based CoG measurement gave similar results as compared to the present method of CoG measurement when the medium-sized anthropomorphic test dummy head was considered. The localization of helmet CoG in the anatomical frame would allow more accurate measurements of force moment and mass moment. The same methodology could also be used to calculate the combined head and helmet CoG of different head and helmet masses.
Kannada Translation and Validation of the ESAS-r Renal for Symptom Burden Survey in Patients with End-Stage Kidney Disease
Authors: Naik Bharathi , Nagaraju Shankar Prasad , Guddattu Vasudeva , Salins Naveen , Prabhu Ravindra , Damani Anuja , Naik Prathvi , Rao Krithika S. , Rao Indu Ramachandra , Singhai Pankaj 
Published: June 2023

Objectives:
End-stage kidney disease (ESKD) is a life-limiting illness that leads to significant health-related suffering for the patients and their caregivers. Moreover, disease-directed options such as dialysis and renal transplant might not be universally accessible. Inadequate assessment and management of symptoms often lead to diminished quality of life. For evaluating symptoms and their associated distress, various tools have been identified. However, these are not available for the native Kannada-speaking population for assessing ESKD symptom burden. In this study, we determined the reliability and validity of the Edmonton Symptom Assessment System Revised Renal (ESAS-r: Renal) in Kannada-speaking ESKD patients.

Materials and Methods:
ESAS-r: Renal English version was translated into Kannada using the forward and backward method. The translated version was endorsed by Nephrology, Palliative care, Dialysis technology and Nursing experts. As a pilot study, 12 ESKD patients evaluated the content of the questionnaires for appropriateness and relevance. The ESAS-r: Renal Kannada version was validated by administering this tool to 45 patients twice a fortnight.

Result:
The translated ESAS-r: Renal Kannada version questionnaire had an acceptable face and content validity. Experts’ opinion was assessed by content validity ratio (CVR), and the value of CVR of ESAS-r: Renal Kannada version was-‘1’-. Internal consistency of the tool was assessed among Kannada-speaking ESKD patients; its Cronbach’s α was 0.785, and test-retest validity was 0.896.

Conclusion:
The validated Kannada version of ESAS-r: Renal was reliable and valid for assessing symptom burden in ESKD patients.
COVID-19 causing Grisel’s syndrome? A rare case report
Authors: Ramprashanth M. P. , Sandeep B. V. , Kishan Anantha , Gadiya Rishab P. 
Published: June 2023

Background:
Grisel’s syndrome was initially described by Grisel in 1930 to explain the case of a non-traumatic atalanta-axial subluxation (C1 over C2). Exact aetiopathogenesis is unclear with the patient usually presenting as a painful acquired torticollis.

Clinical Description:
A 9-year-old male child presented with restriction of neck movements, cough for 2 months and tongue deviation for a week. The patient had increased deep tendon reflexes in bilateral upper and lower limbs with bilateral exaggerated plantar reflexes. Power in bilateral lower limbs was 5/5. The patient also had a history of COVID-19 infection 3 weeks back which was managed conservatively.

Management:
X-ray of the cervical spine revealed subluxation of the atlanto axial joint with an increased atlanto dens interval of 7.5 mm. Magnetic resonance imaging of the Cervical region showed an increased atlanto dens interval of 7.6mm. The patient was immobilised immediately with a hard cervical collar. The patient was started on Inj. Ceftriaxone 850 mg IV twice daily for 21 days, followed by another 21 days of Tab. Cefixime 100 mg twice daily. A repeat X-ray of the cervical spine showed a reduction in atlanto axial dens interval and an improvement in the patient’s condition.

Conclusion:
Although the diagnosis of Grisel’s syndrome could be challenging at times, it is imperative to manage patients with rare diseases swiftly and precisely to prevent permanent future disabilities. Whether COVID-19 was the trigger for the development of Grisel’s syndrome is up for debate and potential area of new research.
No Difference in Two-Dimensional Kinematic Assessment of a 45-Degree Sidestep Cut Compared to Qualitative Assessment
Authors: Butler Lauren , Wyatt Charles , Martinez Alexa , Erdman Ashley , Milian Eryn , Sugimoto Dai , Loewen Alex , Fernandez Jeffrey , Hayden Kristin , DeVerna Amie , Tulchin-Francis Kirsten , Ulman Sophia 
Published: June 2023

Background and Purpose The Expanded Cutting Alignment Scoring Tool (E-CAST) is a two-dimensional qualitative scoring system that has demonstrated moderate inter-rater and good intra-rater reliability for the assessment of trunk and lower extremity alignment during a 45-degree sidestep cut. The primary purpose of this study was to examine the reliability of the quantitative version of the E-CAST among physical therapists and to compare the reliability of the quantitative E-CAST to the original qualitative E-CAST. The hypothesis was that the quantitative version of the E-CAST would demonstrate greater inter-rater and intra-rater reliability compared to the qualitative E-CAST. Study Design Observational cohort, repeated measures reliability study Methods Twenty-five healthy female athletes (age 13.8±1.4 years) performed three sidestep cuts with two-dimensional video capturing frontal and sagittal views. Two physical therapist raters independently scored a single trial using both views on two separate occasions. Based on the E-CAST criteria, select kinematic measurements were extracted using a motion analysis phone application. Intraclass correlation coefficients and 95% confident intervals were calculated for the total score, and kappa coefficients were calculated per kinematic variable. Correlations were converted to z-scores and compared to the six original criteria for significance (α<0.05). Results Cumulative intra- and inter-rater reliability were both good (ICC=0.821, 95% CI 0.687-0.898 and ICC=0.752, 95% CI 0.565-0.859). Cumulative intra-rater kappa coefficients ranged from moderate to almost perfect, and cumulative inter-rater kappa coefficients ranged from slight to good. No significant differences were observed between the quantitative and qualitative criteria for either inter- or intra-rater reliability (Zobs(intra)= -0.38, p=0.352 and Zobs(inter)= -0.30, p=0.382). Conclusion The quantitative E-CAST is a reliable tool to assess trunk and lower extremity alignment during a 45-degree sidestep cut. No significant differences were observed in reliability of the quantitative versus qualitative assessment. Level of evidence 3b
Effect of a Balance Adjustment System on Postural Control in Patients with Chronic Ankle Instability
Authors: Yoshida Kazushi , Kuramochi Rieko , Shinohara Junji 
Published: June 2023

Background/Purpose This study aimed to evaluate how a two-week program using the in-phase mode of a balance adjustment system (the BASYS) affected postural control in participants with chronic ankle instability (CAI). It was hypothesized that the in-phase mode on the BASYS would lead to improved postural control compared with training on a balance disc. Study Design Randomized control trial. Methods Twenty participants with CAI were recruited. The participants were divided into two intervention groups: the BASYS (n = 10) and Balance Disc (BD; cushion type, n = 10). All participants underwent six supervised training sessions over a two-week period. Static postural control during single leg standing with closed eyes was assessed for the CAI limb. We collected COP data while participants balanced on the BASYS. The test was performed for 30 sec, and the total trajectory length and 95% ellipse area were calculated. In the assessment of dynamic postural stability, Y-Balance tests-anterior, posteromedial, and posterolateral directions were measured on the CAI limb for all participants and normalized to the individual’s leg length. Participants were recorded at three instances: pretraining (Pre), post-training 1 (Post1: after the first training), and post-training 2 (Post2: after the last training). Results There was an effect on time in the COP total trajectory length of the BASYS group, which was significantly decreased for Post 1 and Post 2 than for the Pre (p = 0.001, 0.0001). Group differences and time-by-group interactions were not observed for either of the Y-balance test reach distances. Conclusions The study’s primary finding was that two weeks of intervention in the in-phase mode on the BASYS improved static postural control in participants with CAI. Level of Evidence Level Ⅰ, randomized control trial
Isokinetic Assessment of Knee Flexor and Extensor Strength and Lower Extremity Flexibility Assessment of an NCAA Division III Men’s Soccer Team
Authors: Perkins Savanna , Canavan Paul 
Published: June 2023

Background Strength imbalances and flexibility deficits of the hamstrings and hip flexors have been identified as potential risk factors for hamstring injuries, but research on athletes at the Division III level are limited, potentially due to a lack of resources and technology. Purpose The purpose of this study was to conduct isokinetic and flexibility assessments to screen male soccer athletes at risk of sustaining a hamstring injury. Study Design Observational cohort Methods Standardized isokinetic testing of concentric muscle performance, measured by peak torque of the quadriceps and hamstrings and hamstring-to-quadriceps ratios, was conducted using a Biodex isokinetic dynamometer at speeds of 60 and 180°/sec. Additionally, the Active Knee Extension (AKE) test and the Thomas test were performed bilaterally to objectively measure flexibility. Paired sample t-tests were used to compare left and right lower extremities for all outcomes, with the level of significance set at p<0.05. Participants were ranked for risk and given a set of exercises sourced from the FIFA 11 Injury Prevention Program. Results At 60°/sec, the mean PT/BW bilateral deficit was 14.1% for extension and 12.9% for flexion. At 180°/sec, the mean deficit was 9.9% for extension and 11.4% for flexion. The team’s average for left and right H:Q ratios for each speed were 54.4 and 51.4 at 60°/sec and 61.6 and 63.1 at 180°/sec, respectively. The team’s average AKE range of motion was 158° for the left leg and 160° for the right leg. The mean Thomas test measurements were 3.6° away from the neutral position on the right and 1.6° on the left, with nine positive tests. There were no statistically significant differences between left and right knee extension or flexion PT/BW or H:Q ratios at either speed. There was no significant difference between left and right AKE measurements (p=0.182). Conclusion The results of this screening suggest that isokinetic testing and flexibility testing may be useful to identify non-optimal strength ratios and flexibility deficits in male collegiate soccer players. The benefits of this research have direct implications, as participants received both their screening data and a set of exercises aimed to help decrease their injury risk, in addition to the offering data that is useful for determining what normative values for flexibility and strength profiles might look like for Division III male soccer players. Level of Evidence Level 3
The Golfer’s Fore, Fore +, and Advanced Fore + Exercise Program: An Exercise Series and Injury Prevention Program for the Golfer
Authors: Thomas Zachary M , Wilk Kevin E 
Published: June 2023

Golf is increasing in popularity with 24.8 million golfers in the U.S. in 2020, a 2% increase from the previous year. This number increased to 37.5 million in 2021 which can be further broken down to 25.1 million on course and 12.4 million participating in off course activities. Playing golf does not come without risk of injury, with an annual incidence between 15.8% and 40.9% in amateurs and 31% in professional golfers. Most injuries in golf occur due to overuse (82.6%) and only a small percentage occur from a single traumatic event (17.4%). Injuries most commonly occur at the low back followed by the wrist. Injury prevention programs have shown to be successful in other sports however to date there are no studies assessing a golfer’s specific program. The purpose of this clinical commentary is to describe three individualized and unsupervised golf exercise programs (The Golfer’s Fore, Fore+, and Advanced Fore+), of varying difficultly, designed to reduce the risk of injury, improve strength/mobility, and optimize performance. Level of Evidence 5
Evaluation of the Back-in-Action test Battery In Uninjured High School American Football Players
Authors: Rohde Marcel , Ruhlemann Alina , Busch Andre , Grunwald Ulrich , Jaeger Marcus , Mayer Constantin 
Published: June 2023

Background Return to sport testing is an established routine, especially for athletes who have ruptured their anterior cruciate ligament (ACL). Various tests are performed, often combined in test batteries, such as the Back-in-action (BIA) test battery. Unfortunately, pre-injury performance is often unknown, and only few athletes pass the high demands of these test batteries. Purpose The aim of the study was to determine the performance of under 18 American football players on the BIA to establish pre-injury sport specific benchmarks for future RTS testing and to compare these values to data from an age-matched reference group. Methods Fifty-three healthy male American football players underwent a functional assessment using the “Back-in-action” test battery evaluating agility, speed (Parkour-Jumps and Quick-Feet test), balance (using a PC based balance board), and power (Counter-Movement-Jump [CMJ]) as objective measures. Their results were compared with a previously tested reference group (RP) and within the american football players (AF) through three subgroups according to field playing position. Results Overall, the American football (AF) athletes showed lower balance scores for both legs (AF: 3.71/3.57/3.61; RP: 3.4/3.2/3.2; p<0.002) compared to the reference population (RP). CMJ height and Quick-Feet results were not statistically different (p>0.05), Parkour-Jump times (AF: 8.18/ 8.13 sec.; RP: 5.9/5.9sec.; p<0.001) were significantly slower. Power output in all CMJ’s (AF: 46.86/36.94/37.36 W/kg; RP: 43.2/29.5/29 W/kg; p<0.001) was significantly higher than the RP. Passing and running game involved players (G2 & G3) showed significantly better balance scores (G2+G3: 3.36/3.27/3.33; G1: 4.22/4.06/4.10; p<0.001), higher jump height (G2&G3: 38.87/24.02/24.96 cm; G1: 32.03/19.50/18.96 cm; p<0.001) and more watts/kg (G2&G3: 48.83/37.21/37.64 W/kg; G1: 43.95/36.88/36.53 W/kg; p<0.001) compared to blocking players like Linemen (G1) and to the age matched reference population (RP). Conclusion Only 53% of the healthy athletes would have been cleared for sport using the BIA test criteria, which highlights the challenging passing criteria. Despite significantly greater power measurements, scores of balance and agility were poorer compared to the reference group, especially for linemen. These data may serve as sport and position specific reference for high school American football players, instead of using the non-specific reference group data. Study design cross-sectional study- Level of evidence IIb
Altered Knee Loading Following Primary ACL Repair versus ACL Reconstruction
Authors: Singleton Steven , Scofield Harrison , Davis Brittany , Waller Alexandra , Garrison Craig , Goto Shiho , Hannon Joseph 
Published: June 2023

Background ACL repair (ACL-r) has recently gained renewed clinical interest for treatment of ACL tears. ACL-r has several potential benefits over ACL reconstruction (ACL-R) including maintaining the native ACL innervation and blood supply, no graft site morbidity, and possible improved knee biomechanics and decrease in osteoarthritis. The purpose of this study was to assess for differences in metrics of knee joint loading during a single limb squat task between individuals following a primary ACL-r versus those who underwent a standard ACL-R with a patella bone-tendon-bone autograft. Study type Case Control Study Methods The ACL-r group [n: 15, age(yrs): 38.8±13.9] sustained a proximal ACL disruption that was amenable to repair, while the ACL-R group [n: 15, age(yrs): 25.60±1.7] underwent primary reconstruction with patella bone-tendon-bone autograft. At 12-weeks post-operation, both groups completed the IKDC questionnaire and biomechanical testing during performance of the single limb squat. Bilateral peak knee extension moment and total knee joint power as a measure of eccentric loading (contraction) during the descent phase of the squat were calculated on the surgical and non-surgical limb and averaged across the middle three of five trials. Participants also completed quadriceps strength testing on both limbs three months after surgery on an isokinetic dynamometer at 60°/sec. LSI (Limb Strength Index) was calculated for all variables. Separate ANCOVAs were performed on each biomechanical variable to examine differences between groups. Results The ACL-r had a significantly greater peak knee extension moment LSI (ACL-r: 78.46±5.79%; ACL-R: 56.86±5.79%; p=0.019, ηp2=.186) and total knee joint power LSI (ACL-r: 72.47±7.39%; ACL-R: 39.70±7.39%, p=0.006, ηp2=.245) than the ACL-R group. The ACL-r also had a significantly greater quadriceps LSI than the ACL-R group (ACL-r: 66.318±4.61%, ACL-R: 48.03±4.61%, p=0.013, ηp2=.206). Conclusions Individuals following ACL-r demonstrate increased knee joint loading symmetry during a single leg squat task and greater quadriceps strength symmetry at 12 weeks post-surgery compared to those who underwent ACL-R. Level of Evidence 3
The Evolution of Rehabilitation and Return to Sport Following Cartilage Surgery
Authors: Patel Snehal , Marrone William 
Published: June 2023

Rehabilitation after knee cartilage repair or restoration can be a challenging and nuanced process. Historically, conservative rehabilitation protocols have been characterized by limited weightbearing and restricted range of motion (ROM) were created to primarily protect the repaired cartilage but did little for progression into higher level activity. Recent literature has supported accelerated protocols in a variety of cartilage procedures ranging from osteochondral allograft (OCA) Osteochondral autograft surgery (OATS) to matrix-based scaffolding procedures such as Matrix Induced Chondrocyte Implantation (MACI) or Denovo procedures. Advances in technology such as blood flow restriction (BFR) and testing equipment with progressive rehabilitation from the acute phase through the return to sport continuum have made it possible to return to a higher level of activity and performance than first thought of for these procedures. This clinical viewpoint discusses the evolution of knee cartilage rehabilitation characterized by early but progressive weightbearing and early ROM while maintaining early homeostasis in the knee, and then its progression to return to sport and performance in the higher-level athlete. Level of evidence V