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Yamauchi</title> <meta name="description" content="Search results for: S. Yamauchi"> <meta name="keywords" content="S. Yamauchi"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="S. 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Yamauchi"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 7</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: S. Yamauchi</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Development of an Optimization Method for Myoelectric Signal Processing by Active Matrix Sensing in Robot Rehabilitation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Noriyoshi%20Yamauchi">Noriyoshi Yamauchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Etsuo%20Horikawa"> Etsuo Horikawa</a>, <a href="https://publications.waset.org/abstracts/search?q=Takunori%20Tsuji"> Takunori Tsuji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Training by exoskeleton robot is drawing attention as a rehabilitation method for body paralysis seen in many cases, and there are many forms that assist with the myoelectric signal generated by exercise commands from the brain. Rehabilitation requires more frequent training, but it is one of the reasons that the technology is required for the identification of the myoelectric potential derivation site and attachment of the device is preventing the spread of paralysis. In this research, we focus on improving the efficiency of gait training by exoskeleton type robots, improvement of myoelectric acquisition and analysis method using active matrix sensing method, and improvement of walking rehabilitation and walking by optimization of robot control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=active%20matrix%20sensing" title="active matrix sensing">active matrix sensing</a>, <a href="https://publications.waset.org/abstracts/search?q=brain%20machine%20interface%20%28BMI%29" title=" brain machine interface (BMI)"> brain machine interface (BMI)</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20central%20pattern%20generator%20%28CPG%29" title=" the central pattern generator (CPG)"> the central pattern generator (CPG)</a>, <a href="https://publications.waset.org/abstracts/search?q=myoelectric%20signal%20processing" title=" myoelectric signal processing"> myoelectric signal processing</a>, <a href="https://publications.waset.org/abstracts/search?q=robot%20rehabilitation" title=" robot rehabilitation"> robot rehabilitation</a> </p> <a href="https://publications.waset.org/abstracts/64589/development-of-an-optimization-method-for-myoelectric-signal-processing-by-active-matrix-sensing-in-robot-rehabilitation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64589.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">385</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> A Pilot Study on the Short Term Effects of Paslop Dance Exercise on Core Strength, Balance and Flexibility</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wilawan%20Kanhachon">Wilawan Kanhachon</a>, <a href="https://publications.waset.org/abstracts/search?q=Yodchai%20Boonprakob"> Yodchai Boonprakob</a>, <a href="https://publications.waset.org/abstracts/search?q=Uraiwon%20Chatchawan"> Uraiwon Chatchawan</a>, <a href="https://publications.waset.org/abstracts/search?q=Junichiro%20Yamauchi"> Junichiro Yamauchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Paslop is a traditional dance from Laos, which is popular in Laos and northeastern of Thailand. This unique type of Paslop dancing is to control body movement with the song. While dancing to the beat, dancers should contract their abdomen and back muscle all the time. Paslop may be a good alternative to improve strengthening, balance and flexibility. Objective: To investigate the effects of Paslop dance exercise on core strength, balance, and flexibility. Methods: Seven healthy participants (age, 20.57±1.13 yrs; height, 162.29±6.16 cm; body mass, 58.14±7.03 kg; mean± S.D.) were volunteered to perform the 45-minute Paslop dance exercise in three times a week for 8 weeks. Before, during and after the exercise period, core strength, balance and flexibility were measured with the pressure biofeedback unit (PBU), one-leg stance test (OLST), and sit and reach test (SAR), respectively. Result: PBU score for core strength increased from 2.12 mmHg in baseline to 6.34 mmHg at the 4th week and 10.10 mmHg at the 8th week after the Paslop dance training, while OLST and SAR did not change. Conclusion: The study demonstrates that 8-week Paslop dancing exercise can improve the core strength. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=balance" title="balance">balance</a>, <a href="https://publications.waset.org/abstracts/search?q=core%20strength" title=" core strength"> core strength</a>, <a href="https://publications.waset.org/abstracts/search?q=flexibility" title=" flexibility"> flexibility</a>, <a href="https://publications.waset.org/abstracts/search?q=Paslop" title=" Paslop "> Paslop </a> </p> <a href="https://publications.waset.org/abstracts/7459/a-pilot-study-on-the-short-term-effects-of-paslop-dance-exercise-on-core-strength-balance-and-flexibility" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7459.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">381</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> Effects of Live Yeast Supplementation to Reduce Oxidative Stress and Increase Lactation Performance of Dairy Cattle during the Summer Season</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Nawid%20Mirzad">Ahmad Nawid Mirzad</a>, <a href="https://publications.waset.org/abstracts/search?q=Akira%20Goto"> Akira Goto</a>, <a href="https://publications.waset.org/abstracts/search?q=Takuto%20Endo"> Takuto Endo</a>, <a href="https://publications.waset.org/abstracts/search?q=Hitoshi%20Ano"> Hitoshi Ano</a>, <a href="https://publications.waset.org/abstracts/search?q=Hiromu%20Katamoto"> Hiromu Katamoto</a>, <a href="https://publications.waset.org/abstracts/search?q=Takenori%20Yamauchi"> Takenori Yamauchi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to evaluate the effects of live yeast supplementation on oxidative stress biomarker and antioxidant vitamin levels as well as lactation performance in Holstein Friesian cows during the summer season in Fukuoka prefecture. Sixteen lactating cows weighing 707.50 ± 13.09 kg (Mean ± SE) were used and randomly assigned to either supplemented (n = 8) or control (n = 8) group. The cows in supplemented group were administered with live yeast product at 10 g/d per cow from middle of July to middle of September for eight weeks. In treatment group, serum levels of derivatives of reactive oxygen metabolites (d-ROMs) were lower at week six. In addition, serum levels of glucose and retinol were higher at week eight and those of α-tocopherol were higher at week 2 in treatment group. During study period daily average milk yield decreased in both groups. Daily average milk yield 63 days after the onset of supplementation in treatment and control groups were 23.5 and 22.2 kg, respectively. The reduction rate of milk yield in treatment group tended to be lower (17.6 vs. 20.0%). These results suggest that live yeast supplementation may reduce oxidative stress and improve energy metabolism in lactating dairy cows during the summer season. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cow" title="cow">cow</a>, <a href="https://publications.waset.org/abstracts/search?q=live%20yeast" title=" live yeast"> live yeast</a>, <a href="https://publications.waset.org/abstracts/search?q=milk" title=" milk"> milk</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidative%20stress" title=" oxidative stress"> oxidative stress</a>, <a href="https://publications.waset.org/abstracts/search?q=summer%20season" title=" summer season"> summer season</a> </p> <a href="https://publications.waset.org/abstracts/102176/effects-of-live-yeast-supplementation-to-reduce-oxidative-stress-and-increase-lactation-performance-of-dairy-cattle-during-the-summer-season" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102176.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">160</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Association between Severe Acidemia before Endotracheal Intubation and the Lower First Attempt Intubation Success Rate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Keiko%20Naito">Keiko Naito</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Nakashima"> Y. Nakashima</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Yamauchi"> S. Yamauchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Kunitani"> Y. Kunitani</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Ishigami"> Y. Ishigami</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Numata"> K. Numata</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Mizobe"> M. Mizobe</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Homma"> Y. Homma</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Takahashi"> J. Takahashi</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Inoue"> T. Inoue</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Shiga"> T. Shiga</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Funakoshi"> H. Funakoshi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: A presence of severe acidemia, defined as pH < 7.2, is common during endotracheal intubation for critically ill patients in the emergency department (ED). Severe acidemia is widely recognized as a predisposing factor for intubation failure. However, it is unclear that acidemic condition itself actually makes endotracheal intubation more difficult. We aimed to evaluate if a presence of severe acidemia before intubation is associated with the lower first attempt intubation success rate in the ED. Methods: This is a retrospective observational cohort study in the ED of an urban hospital in Japan. The collected data included patient demographics, such as age, sex, and body mass index, presence of one or more factors of modified LEMON criteria for predicting difficult intubation, reasons for intubation, blood gas levels, airway equipment, intubation by emergency physician or not, and the use of the rapid sequence intubation technique. Those with any of the following were excluded from the analysis: (1) no blood gas drawn before intubation, (2) cardiopulmonary arrest, and (3) under 18 years of age. The primary outcome was the first attempt intubation success rates between a severe acidemic patients (SA) group and a non-severe acidemic patients (NA) group. Logistic regression analysis was used to test the first attempt success rates for intubations between those two groups. Results: Over 5 years, a total of 486 intubations were performed; 105 in the SA group and 381 in the NA group. The univariate analysis showed that the first attempt intubation success rate was lower in the SA group than in the NA group (71.4% vs 83.5%, p < 0.01). The multivariate logistic regression analysis identified that severe acidemia was significantly associated with the first attempt intubation failure (OR 1.9, 95% CI 1.03-3.68, p = 0.04). Conclusions: A presence of severe acidemia before endotracheal intubation lowers the first attempt intubation success rate in the ED. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acidemia" title="acidemia">acidemia</a>, <a href="https://publications.waset.org/abstracts/search?q=airway%20management" title=" airway management"> airway management</a>, <a href="https://publications.waset.org/abstracts/search?q=endotracheal%20intubation" title=" endotracheal intubation"> endotracheal intubation</a>, <a href="https://publications.waset.org/abstracts/search?q=first-attempt%20intubation%20success%20rate" title=" first-attempt intubation success rate"> first-attempt intubation success rate</a> </p> <a href="https://publications.waset.org/abstracts/74274/association-between-severe-acidemia-before-endotracheal-intubation-and-the-lower-first-attempt-intubation-success-rate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74274.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">248</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Revisiting Classic Triad of Japanese Spotted Fever: A Case Series of Forty-Three Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20Kunitani">Y. Kunitani</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Nakashima"> Y. Nakashima</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Yamauchi"> S. Yamauchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Ishigami"> Y. Ishigami</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Naito"> K. Naito</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Numata"> K. Numata</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Mizobe"> M. Mizobe</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Homma"> Y. Homma</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Takahashi"> J. Takahashi</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Inoue"> T. Inoue</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Shiga"> T. Shiga</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Funakoshi"> H. Funakoshi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Japanese Spotted Fever (JSF) is one of the Rickettsial infections, caused by Rickettsia japonica, which is transmitted by ticks. JSF is seen in limited area, such as Japan and South Korea. Its clinical triad is rash, eschar and fever. It often shows leukocytopenia, thrombopenia, elevated transaminase and high C-reactive protein (CRP). Sometimes it can be life-threatening due to disseminated intravascular coagulation or multiple organ failure. Study Aim: The aim of this study is to describe the features of JSF, as this unique infection is rapidly growing in Japan. Methods: This is a case series of JSF from 2009 to 2016, in Mie Prefectural Hospital in Japan. We collected JSF cases, which were diagnosed by polymerase chain reaction (PCR) of the skin or blood serum, or the elevation of the antibody titer of paired blood samples. Results: There were 43 JSF patients (19 male, 24 female) with a median age of 71 years [IQR:65-80]. The median body temperature was 38.1°C[IQR: 37.5-39.0]. 95% had a rash, 67% had eschar and 50% had fever. The median WBC count was 6,700 [IQR: 5,750-8,200] and leukocytopenia was observed in only 7%. The median platelet count was 14x104 [IQR10x104-17x104], thrombopenia was observed in 65%. The median aspartate transaminase (AST) was 53 IU/L [IQR: 41-93]; the median alanine aminotransferase (ALT) was 34 IU/L [IQR: 24-54]; the median CRP was 10.4 mg/dL [IQR:7.2-13.9]; the median lactate dehydrogenase (LDH) was 352IU/L [IQR:282-451]. CRP and LDH were elevated in almost all of the patients. Median length of stay in hospital was 8 days [IQR: 6-11]. All patients were treated with tetracycline and quinolone on the day of the presentation. There was no fatality from JSF. Conclusion: The patients with JSF classically presents with eschar, rash and fever. However, in this study, the half of the patients were afebrile. Although JSF is not a common infectious disease worldwide, if the patient had previously visited Japan or South Korea and presented with rash and eschar with or without fever, we should consider JSF as a potential diagnosis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=infectious%20disease" title="infectious disease">infectious disease</a>, <a href="https://publications.waset.org/abstracts/search?q=Japanese%20spotted%20fever" title=" Japanese spotted fever"> Japanese spotted fever</a>, <a href="https://publications.waset.org/abstracts/search?q=Rickettsial%20disease" title=" Rickettsial disease"> Rickettsial disease</a>, <a href="https://publications.waset.org/abstracts/search?q=Rickettsia%20japonica" title=" Rickettsia japonica"> Rickettsia japonica</a> </p> <a href="https://publications.waset.org/abstracts/74531/revisiting-classic-triad-of-japanese-spotted-fever-a-case-series-of-forty-three-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74531.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">229</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Differences in Patient Satisfaction Observed between Female Japanese Breast Cancer Patients Who Receive Breast-Conserving Surgery or Total Mastectomy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Keiko%20Yamauchi">Keiko Yamauchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Motoyuki%20Nakao"> Motoyuki Nakao</a>, <a href="https://publications.waset.org/abstracts/search?q=Yoko%20Ishihara"> Yoko Ishihara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The increase in the number of women with breast cancer in Japan has required hospitals to provide a higher quality of medicine so that patients are satisfied with the treatment they receive. However, patients’ satisfaction following breast cancer treatment has not been sufficiently studied. Hence, we investigated the factors influencing patient satisfaction following breast cancer treatment among Japanese women. These women underwent either breast-conserving surgery (BCS) (n = 380) or total mastectomy (TM) (n = 247). In March 2016, we conducted a cross-sectional internet survey of Japanese women with breast cancer in Japan. We assessed the following factors: socioeconomic status, cancer-related information, the role of medical decision-making, the degree of satisfaction regarding the treatments received, and the regret arising from the medical decision-making processes. We performed logistic regression analyses with the following dependent variables: extreme satisfaction with the treatments received, and regret regarding the medical decision-making process. For both types of surgery, the odds ratio (OR) of being extremely satisfied with the cancer treatment was significantly higher among patients who did not have any regrets compared to patients who had. Also, the OR tended to be higher among patients who chose to play a wanted role in the medical decision-making process, compared with patients who did not. In the BCS group, the OR of being extremely satisfied with the treatment was higher if, at diagnosis, the patient’s youngest child was older than 19 years, compared with patients with no children. The OR was also higher if patient considered the stage and characteristics of their cancer significant. The OR of being extremely satisfied with the treatments was lower among patients who were not employed on full-time basis, and among patients who considered the second medical opinions and medical expenses to be significant. These associations were not observed in the TM group. The OR of having regrets regarding the medical decision-making process was higher among patients who chose to play a role in the decision-making process as they preferred, and was also higher in patients who were employed on either a part-time or contractual basis. For both types of surgery, the OR was higher among patients who considered a second medical opinion to be significant. Regardless of surgical type, regret regarding the medical decision-making process decreases treatment satisfaction. Patients who received breast-conserving surgery were more likely to have regrets concerning the medical decision-making process if they could not play a role in the process as they preferred. In addition, factors associated with the satisfaction with treatment in BCS group but not TM group included the second medical opinion, medical expenses, employment status, and age of the youngest child at diagnosis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=medical%20decision%20making" title="medical decision making">medical decision making</a>, <a href="https://publications.waset.org/abstracts/search?q=breast-conserving%20surgery" title=" breast-conserving surgery"> breast-conserving surgery</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20mastectomy" title=" total mastectomy"> total mastectomy</a>, <a href="https://publications.waset.org/abstracts/search?q=Japanese" title=" Japanese"> Japanese</a> </p> <a href="https://publications.waset.org/abstracts/82909/differences-in-patient-satisfaction-observed-between-female-japanese-breast-cancer-patients-who-receive-breast-conserving-surgery-or-total-mastectomy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82909.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">147</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Removing Maturational Influences from Female Youth Swimming: The Application of Corrective Adjustment Procedures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Clorinda%20Hogan">Clorinda Hogan</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaun%20Abbott"> Shaun Abbott</a>, <a href="https://publications.waset.org/abstracts/search?q=Mark%20Halaki"> Mark Halaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcela%20Torres%20Catiglioni"> Marcela Torres Catiglioni</a>, <a href="https://publications.waset.org/abstracts/search?q=Goshi%20Yamauchi"> Goshi Yamauchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Lachlan%20Mitchell"> Lachlan Mitchell</a>, <a href="https://publications.waset.org/abstracts/search?q=James%20Salter"> James Salter</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Romann"> Michael Romann</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20Cobley"> Stephen Cobley</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Common annual age-group competition structures unintentionally introduce participation inequalities, performance (dis)advantages and selection biases due to the effect of maturational variation between youth swimmers. On this basis, there are implications for improving performance evaluation strategies. Therefore the aim was to: (1) To determine maturity timing distributions in female youth swimming; (2) quantify the relationship between maturation status and 100-m FC performance; (3) apply Maturational-based Corrective Adjustment Procedures (Mat-CAPs) for removal of maturational status performance influences. Methods: (1) Cross-sectional analysis of 663 female (10-15 years) swimmers who underwent assessment of anthropometrics (mass, height and sitting height) and estimations of maturity timing and offset. (2) 100-m front-crawl performance (seconds) was assessed at Australian regional, state, and national-level competitions between 2016-2020. To determine the relationship between maturation status and 100-m front-crawl performance, MO was plotted against 100-m FC performance time. The expected maturity status - performance relationship for females aged 10-15 years of age was obtained through a quadratic function (y = ax2 + bx + c) from unstandardized coefficients. The regression equation was subsequently used for Mat-CAPs. (3) Participants aged 10-13 years were categorised into maturity-offset categories. Maturity offset distributions for Raw (‘All’, ‘Top 50%’ & ‘Top 25%’) and Correctively Adjusted swim times were examined. Chi-square, Cramer’s V and ORs determined the occurrence of maturation biases for each age group and selection level. Results—: (1) Maturity timing distributions illustrated overrepresentation of ‘normative’ maturing swimmers (11.82 ± 0.40 years), with a descriptive shift toward the early maturing relative to the normative population. (2) A curvilinear relationship between maturity-offset and swim performance was identified (R2 = 0.53, P < 0.001) and subsequently utilised for Mat-CAPs. (3) Raw maturity offset categories identified partial maturation status skewing towards biologically older swimmers at 10/11 and 12 years, with effect magnitudes increasing in the ‘Top 50%’ and ‘25%’ of performance times. Following Mat-CAPs application, maturity offset biases were removed in similar age groups and selection levels. When adjusting performance times for maturity offset, Mat-CAPs was successful in mitigating against maturational biases until approximately 1-year post Peak Height Velocity. The overrepresentation of ‘normative’ maturing female swimmers contrasted with the substantial overrepresentation of ‘early’ maturing male swimmers found previously in 100-m front-crawl. These findings suggest early maturational timing is not advantageous in females, but findings associated with Aim 2, highlight how advanced maturational status remained beneficial to performance. Observed differences between female and male maturational biases may relate to the differential impact of physiological development during pubertal years. Females experience greater increases of fat mass and potentially differing changes in body shape which can negatively affect swim performance. Conclusions: Transient maturation status-based participation and performance advantages were apparent within a large sample of Australian female youth 100-m FC swimmers. By removing maturity status performance biases within female youth swimming, Mat-CAPs could help improve participation experiences and the accuracy of identifying genuinely skilled female youth swimmers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=athlete%20development" title="athlete development">athlete development</a>, <a href="https://publications.waset.org/abstracts/search?q=long-term%20sport%20participation" title=" long-term sport participation"> long-term sport participation</a>, <a href="https://publications.waset.org/abstracts/search?q=performance%20evaluation" title=" performance evaluation"> performance evaluation</a>, <a href="https://publications.waset.org/abstracts/search?q=talent%20identification" title=" talent identification"> talent identification</a>, <a href="https://publications.waset.org/abstracts/search?q=youth%20competition" title=" youth competition"> youth competition</a> </p> <a href="https://publications.waset.org/abstracts/139808/removing-maturational-influences-from-female-youth-swimming-the-application-of-corrective-adjustment-procedures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139808.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">182</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational 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