scholarly journals The Impact of a Ballet and Modern Dance Performance on Heart Rate Variability in Collegiate Dancers

Sports ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 3
Author(s):  
Rohan Edmonds ◽  
Meaghan Wood ◽  
Patricia Fehling ◽  
Sarah DiPasquale
Keyword(s):  
Heart Rate ◽  
Self Efficacy ◽  
Modern Dance ◽  
Valuable Insight ◽  
Dance Performance ◽  
Baseline Values ◽  
The Mean ◽  
Post Hoc ◽  
The Impact ◽  
Insight Into

Heart rate (HR) variability (HRV) is a useful tool for assessing cardiac autonomic function and identifying potential readiness to perform in athletic populations, but has yet to be investigated in dance populations. As such, HRV may be able to provide valuable insight into the preparedness of dancers and the demands of performance in a collegiate dance population. 29 female dancers were monitored leading up to and following a dance performance. Analysis of HRV focused on the square root of the mean squared differences of the successive RR intervals (RMSSD). A one-way ANOVA, with Bonferroni post-hoc, paired with magnitude-based-inferences (MBI) with effect sizes (ES) were used to analyze changes during the Winter Dance Concert, while the Recovery-Stress Questionnaire for Athletes (REST-Q Sport) measured the frequency of stress of dancers. When compared to baseline (69.8 ± 1.7 bpm), mean (HR) was increased at both pre-show recordings (76.5 ± 2.1 bpm and 75.6 ± 1.8 bpm). In contrast, RMSSD was significantly diminished (p < 0.05) at both pre-show recordings (40.6 ± 28.4 ms and 40.5 ± 21.8 ms) as compared to baseline (70.3 ± 38.4 ms). Dancers reported increased (p < 0.05) self-efficacy before the second show and at 36 h post-concert. As expected, Dance Exposure (DE) increased significantly (p < 0.05), while Academic Exposure (AE) was similar, during the week leading up to the dance concert. The results suggest dancers responded to concert dance performances similarly to other athletic populations approaching intense competition by exhibiting decreased parasympathetic activity prior to the dance performances, which returned to baseline values 36 h after their performances. Given the increase in self-efficacy, these fluctuations may indicate a readiness to a performance comparable to athletes.

Heart Rate and Neurological Outcomes in Patients Undergoing Targeted Temperature Management

2020 ◽  
pp. 088506662098250
Author(s):  
Chad M. Conner ◽  
William H. Perucki ◽  
Andre Gabriel ◽  
David M. O’Sullivan ◽  
Antonio B. Fernandez
Keyword(s):  
Heart Rate ◽  
Positive Association ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Neurological Outcomes ◽  
Neurologic Outcomes ◽  
Resuscitation Guidelines ◽  
The Mean ◽  
The Impact ◽  
The Relationship

Introduction: There is a paucity of data evaluating the impact of heart rate (HR) during Targeted Temperature Management (TTM) and neurologic outcomes. Current resuscitation guidelines do not specify a HR goal during TTM. We sought to determine the relationship between HR and neurologic outcomes in a single-center registry dataset. Methods: We retrospectively studied 432 consecutive patients who completed TTM (33°C) after cardiac arrest from 2008 to 2017. We evaluated the relationship between neurologic outcomes and HR during TTM. Pittsburgh Cerebral Performance Categories (CPC) at discharge were used to determine neurological recovery. Statistical analysis included chi square, Student’s t-test and Mann-Whitney U. A logistic regression model was created to evaluate the strength of contribution of selected variables on the outcome of interest. Results: Approximately 94,000 HR data points from 432 patients were retrospectively analyzed; the mean HR was 82.17 bpm over the duration of TTM. Favorable neurological outcomes were seen in 160 (37%) patients. The mean HR in the patients with a favorable outcome was lower than the mean HR of those with an unfavorable outcome (79.98 bpm vs 85.67 bpm p < 0.001). Patients with an average HR of 60-91 bpm were 2.4 times more likely to have a favorable neurological outcome compared to than HR’s < 60 or > 91 (odds ratio [OR] = 2.36, 95% confidence interval [CI] 1.61-3.46, p < 0.001). Specifically, mean HR’s in the 73-82 bpm range had the greatest rate of favorable outcomes (OR 3.56, 95% CI 1.95-6.50), p < 0.001. Administration of epinephrine, a history of diabetes mellitus and hypertension all were associated with worse neurological outcomes independent of HR. Conclusion: During TTM, mean HRs between 60-91 showed a positive association with favorable outcomes. It is unclear whether a specific HR should be targeted during TTM or if heart rates between 60-91 bpm might be a sign of less neurological damage.

scholarly journals Detecting Convergence Trends among EU Universities

Economies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 42
Author(s):  
Maria Adamakou ◽  
Dimitris Kallioras ◽  
George Petrakos
Keyword(s):  
Methodological Approach ◽  
Basic Research ◽  
Valuable Insight ◽  
Traditional Role ◽  
University Ranking ◽  
Convergence Clubs ◽  
Development Processes ◽  
The Impact ◽  
The Empirical Analysis ◽  
Insight Into

Universities are emerging growth determinants. This is so as, in addition to the fulfillment of their traditional role in teaching and (basic) research, universities, as aptly described within the helix framework, are expected to engage in regional development processes. The paper aims to detect trends of convergence among EU universities in terms of performance. To the best of our knowledge, this topic has not hitherto been examined. The empirical analysis of the paper covers the period 2014–2021, utilizes data obtained from URAP (University Ranking by Academic Performance), and employs the methodological approach of convergence clubs. The findings of the paper provide valuable insight into both theory and policy-making. We conclude that despite the unification of EU educational space, trends of divergence among EU universities are still present, and notable divisions still remain. Consequently, this indicates that the impact of EU universities on the formation of spatial disparities across EU space is not neutral.

scholarly journals Morning Sympathetic Activity after Evening Binge Alcohol Consumption

2020 ◽  
Author(s):  
Ian Mark Greenlund ◽  
Hannah A. Cunningham ◽  
Anne L Tikkanen ◽  
Jeremy A Bigalke ◽  
Carl A Smoot ◽  
...  
Keyword(s):  
Heart Rate ◽  
Alcohol Consumption ◽  
Binge Drinking ◽  
Rem Sleep ◽  
Muscle Sympathetic Nerve Activity ◽  
Urine Specific Gravity ◽  
Total Urine ◽  
The Impact ◽  
Insight Into

Binge alcohol consumption elicits acute and robust increases of muscle sympathetic nerve activity (MSNA), yet the impact of evening binge drinking on morning-after MSNA is unknown. The present study examined the effects of evening binge alcohol consumption on polysomnographic sleep and morning-after MSNA. We hypothesized that evening binge drinking (i.e. 4-5 drink equivalent in <2hrs) would reduce sleep quality and increase morning-after blood pressure (BP) and MSNA. Following a familiarization night within the sleep laboratory, twenty-two participants (12 men, 10 women; 25±1 years) were examined after simulated binge drinking or fluid control (randomized, crossover design). Morning MSNA was successfully recorded across both conditions in 16 participants (8 men, 8 women) during a 10-minute baseline and three Valsalva's maneuvers (VM). Binge drinking reduced rapid eye movement (REM) sleep (15±1 vs. 20±1%; p=0.003), increased stage II sleep (54±1 vs. 51±1%; p=0.002), increased total urine output (2.9±0.2 vs. 2.1±0.1 liters; p<0.001), but did not alter morning-after urine specific gravity. Binge drinking increased morning-after heart rate (65 (54-72) vs. 58 (51-67) beats/min; p=0.013), but not resting BP or MSNA. Binge drinking elicited greater sympathoexcitation during VM (38±3 vs. 43±3 bursts/min, p=0.036). Binge drinking augmented heart rate (p=0.002), systolic BP (p=0.022) and diastolic (p=0.037) BP reactivity to VM phase IV, and blunted cardiovagal baroreflex sensitivity during VM phases II (p=0.028) and IV (p=0.043). In conclusion, evening binge alcohol consumption disrupted REM sleep and morning-after autonomic function. These findings provide new mechanistic insight into the potential role of binge drinking on cardiovascular risk.

scholarly journals Tobacco smoking and associated factors among people living with HIV in Uganda

2020 ◽  
Author(s):  
Noreen Dadirai Mdege ◽  
Fredrick Edward Makumbi ◽  
Ronald Ssenyonga ◽  
Frances Thirlway ◽  
Joseph Matovu ◽  
...  
Keyword(s):  
Self Efficacy ◽  
Current Smoker ◽  
People Living With Hiv ◽  
Related Quality ◽  
Health Related ◽  
Smoking Patterns ◽  
The Mean ◽  
Living With Hiv ◽  
The Impact

Abstract Introduction This study aimed to assess smoking patterns, behaviours and associated factors among people living with HIV (PLWH) in Uganda. Methods A cross-sectional survey was conducted among adults in HIV care in Uganda. Descriptive statistics were used to describe smoking patterns and behaviours. Logistic regression was used to identify factors associated with current smoking status. Results We recruited 777 participants between October and November 2019: 387 (49.8%) current smokers and 390 (50.2%) non-smokers. 60.9% were males, and the mean age was 40.5 (SD 10.7) years. In multivariate logistic regression, the following increased the odds of being a current smoker: being male (OR 6.60 (95%CI= 4.34 to 10.04)), having at least two smokers among five closest friends (OR 3.97 (95%CI= 2.08 to 7.59)), living in smoking-permitted households (OR 5.83 (95%CI= 3.32 to 10.23)), alcohol use (OR 3.96 (95%CI= 2.34 to 6.71)), a higher perceived stress score (OR 2.23 (95%CI= 1.50 to 3.34)), and higher health-related quality of life (OR 5.25 (95%CI= 1.18 to 23.35)). Among smokers, the mean Fagerstrom Test for Nicotine Dependence score was 3.0 (SD 1.9), and 52.5% were making plans to quit. Self-efficacy to resist smoking and knowledge of the impact of smoking on PLWH’s health were low. Conclusions Being male, having at least two smokers among five closest friends, living in smoking-permitted households, alcohol use, higher perceived stress scores and higher health-related quality of life were associated with being a current smoker. Smokers had low to moderate nicotine dependence, high willingness to quit, and low self-efficacy. Implications Future behavioural smoking cessation interventions for PLWH should address co-consumption with alcohol and comorbid mental health conditions that are common among PLWH such as stress. In addition, they should take into account the lack of knowledge among this population of the impact of smoking on their health, and low self-efficacy. Given the relatively low levels of nicotine dependency and high levels of willingness to quit in our sample, smoking cessation interventions, if offered, are likely to support this population in achieving long-term smoking abstinence.

Predicting the impact of perturbations on salmon (Oncorhynchus spp.) communities: implications for monitoring

2004 ◽  
Vol 61 (7) ◽  
pp. 1166-1175 ◽  
Author(s):  
M R Arkoosh ◽  
L Johnson ◽  
P A Rossignol ◽  
T K Collier
Keyword(s):  
Pacific Northwest ◽  
Anthropogenic Factors ◽  
Valuable Insight ◽  
Community Members ◽  
Contaminant Exposure ◽  
Community Model ◽  
The Pacific ◽  
Chemical Contaminant ◽  
The Impact ◽  
Insight Into

Twenty-six salmon (Oncorhynchus spp.) stocks from the Pacific Northwest are listed as either threatened or endangered. A number of anthropogenic factors, likely including degradation of habitat by chemical contaminant exposure, have contributed to their decline. Techniques that can assess injury or judge the efficacy of regulatory actions on the recovery of this species are needed. We strive to understand why a population is changing by examining changes in their intrinsic birth rates, death rates, and (or) growth rates. However, salmon populations are influenced by other species in the community. To address this issue, we developed a parsimonious three-trophic-level community model consisting of prey, salmon, and parasites and examined the model's response to one anthropogenic factor (contaminant exposure) using qualitative analysis. This community model may not only provide valuable insight into salmon survival but also may broaden the approaches available to elucidate direct and indirect effects. We demonstrate analytically that some community members, possibly salmon themselves, might be ambiguous or unreliable variables to monitor. We also demonstrate that other species in the community, such as parasites, may be more sensitive than salmon in monitoring the influence of anthropogenic factors such as contaminants.

Impact of Boron and Gallium on Defects Production in Silicon

2000 ◽  
Vol 650 ◽  
Author(s):  
Aurangzeb Khan ◽  
Nethaji Dharmarasu ◽  
Masafumi Yamaguchi ◽  
Kenji Araki ◽  
Tuong K. Vu ◽  
...  
Keyword(s):  
Recombination Center ◽  
Valuable Insight ◽  
Electron Level ◽  
Boron Doped ◽  
Hole Level ◽  
Radiation Induced ◽  
Induced Defects ◽  
The Impact ◽  
Insight Into

ABSTRACTWe report the results of comparison of radiation-induced defects (1 MeV electrons) in n+-p-p+ Si diodes doped with gallium or boron ranging in concentration from 8 × 1014 to 5 × 1016 cm-3, together with the impact of oxygen on radiation –induced defects. Present results provide evidence for new defects states in addition to those previously reported in gallium- and boron-doped Si. The combined boron and gallium data provide enough information to gain valuable insight into the role of the dopants on radiation-induced defects in Si. The interesting new future of our results is that the gallium appears to strongly suppress the radiation induced defect, especially hole level EV+0.36 eV, which is thought to act as a recombination center. Similarly the dominant electron level at EC-0.18 eV in B-doped Si (which act as a donor) has not been observed in Ga-doped CZ-grown Si.

scholarly journals Literasi matematis dan self-efficacy siswa ditinjau dari perbedaan kebijakan sistem zonasi

2021 ◽  
Vol 15 (2) ◽  
pp. 227-245
Author(s):  
Ahmad Muhazir ◽  
Kana Hidayati ◽  
Heri Retnawati
Keyword(s):  
High School ◽  
High School Students ◽  
Self Efficacy ◽  
Senior High School ◽  
Mathematical Literacy ◽  
School Students ◽  
Significant Difference ◽  
The Mean ◽  
The Impact ◽  
Senior High School Students

Penelitian ini bertujuan untuk (1) mendeskripsikan kemampuan literasi matematis dan self-efficacy siswa kelas XI SMA; (2) mendeskripsikan dampak perbedaan kebijakan sistem zonasi terhadap kemampuan literasi matematis dan self-efficacy siswa kelas XI SMA; dan (3) mendes­kripsikan hubungan antara literasi matematis dan self-efficacy siswa kelas XI SMA. Penelitian survei ini melibatkan 346 siswa dari Kota Banjarmasin dan 321 siswa dari Kota Palangka Raya. Kedua kota tersebut memiliki kebijakan zonasi yang berbeda. Pengumpulan data dila­kukan me­lalui tes dan angket yang telah memenuhi kriteria valid dan reliabel. Teknik analisis data yang digunakan adalah statistik deskriptif dan inferensial. Hasil penelitian menunjukkan bahwa literasi matematis siswa di Kota Banjarmasin dan Kota Palangka Raya berada pada kategori ren­dah, sedangkan self-efficacy siswa pada kedua kota berada pada kategori sedang. Tidak terdapat per­bedaan yang bermakna pada rata-rata literasi matematis antara siswa di Kota Banjarmasin dan Palangka Raya. Namun demikian, terdapat perbedaan yang bermakna pada rata-rata self-effi­cacy antara siswa di Kota Banjarmasin dan Palangka Raya. Kebijakan zonasi di Kota Palangka Raya menyebabkan perbedaan rata-rata literasi matematis siswa pada sekolah kategori tinggi, sedang, dan rendah. Sedangkan kebijakan zonasi di Kota Banjarmasin menyebabkan perbedaan rata-rata self-efficacy siswa pada sekolah kategori tinggi, sedang, dan rendah. Terakhir, terdapat korelasi positif yang signifikan (meskipun lemah) antara literasi matematis dan self-efficacy siswa kelas XI SMA di Kota Banjarmasin dan Kota Palangka Raya (r = 0,194). Mathematical literacy and self-efficacy of students in terms of differences in zoning system policies.AbstractThis study aimed to (1) describe the mathematical literacy abilities and self-efficacy of eleventh-grade senior high school students; (2) describe the impact of differences in zoning system policies on the mathematical literacy and self-efficacy of eleventh-grade senior high school students; and (3) describe the relationship between mathematical literacy and self-efficacy of eleventh-grade senior high school students. This survey involved 346 students from Banjarmasin City and 321 students from Palangka Raya City, Indonesia. The two cities have different zoning policies. The data was collected through tests and questionnaires that met the valid and reliable criteria. The data analysis technique used was descriptive and inferential statistics. The results showed that students’ mathematical literacy in Banjarmasin and Palangka Raya City was in a low category, while self-efficacy in both cities was in the medium category. There was no significant difference in the mean of mathematical literacy of students in Banjarmasin and Palangka Raya City. How­ever, there was a significant difference in the mean of self-efficacy of students in Banjar­masin and Palangka Raya City. The zoning policy in Palangka Raya City causes differences in the mean of mathematical literacy of students in high, moderate, and low category schools. In contrast, the zoning policy in Banjarmasin City causes differences in the mean of self-efficacy of students in high, medium, and low category schools. Lastly, there was a significant positive correlation (al­though weak) between mathematical literacy and self-efficacy of eleventh-grade senior high school students in Banjarmasin and Palangka Raya City (r = 0.194).

scholarly journals The impact of the catheter to vein ratio on peripheral intravenous cannulation success, a post-hoc analyses

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0252166
Author(s):  
Fredericus H. J. van Loon ◽  
Hendrikus H. M. Korsten ◽  
Angelique T. M. Dierick–van Daele ◽  
Arthur R. A. Bouwman
Keyword(s):  
Success Rate ◽  
Null Hypothesis ◽  
Added Value ◽  
External Diameter ◽  
Venous Diameter ◽  
Cannulation Success ◽  
Peripheral Intravenous Access ◽  
Post Hoc ◽  
The Impact ◽  
Insight Into

Background Intravenous cannulation is usually the first procedure performed in modern healthcare, although establishing peripheral intravenous access is challenging in some patients. The impact of the ratio between venous diameter and the size of the inserted catheter (catheter to vein ratio, CVR) on the first attempt success rate can be of added value in clinical. This study tries to give insight into the consideration that must be made when selecting the target vein and the type of catheter, and proved the null hypothesis that an optimal CVR would not be associated with increased first attempt cannulation success. Methods This was a post-hoc analyses on adult patients admitted for peripheral intravenous cannulation. Intravenous cannulation was performed according to practice guidelines, by applying the traditional landmark approach. The CVR was calculated afterwards for each individual patient by dividing the external diameter of the inserted catheter by the diameter of the target vein, which was multiplied by 100%. Results In total, 610 patients were included. The median CVR was 0.39 (0.15) in patients with a successful first attempt, whereas patients with an unsuccessful first attempt had a median CVR of 0.55 (0.20) (P<0.001). The optimal cut-off point of the CVR was 0.41. First attempt cannulation was successful in 92% of patients with a CVR<0.41, whereas as those with a CVR>0.41 had a first attempt success rate of 65% (P<0.001). Conclusion This first introduction of the CVR in relation to cannulation success should be further investigated. Although, measuring the venous diameter or detection of a vein with a specific diameter prior to cannulation may increase first attempt cannulation success.

scholarly journals Sinus heart rate post pulmonary vein ablation and long-term risk of recurrences

2020 ◽  
Author(s):  
Gesa von Olshausen ◽  
Ott Saluveer ◽  
Jonas Schwieler ◽  
Nikola Drca ◽  
Hamid Bastani ◽  
...  
Keyword(s):  
Heart Rate ◽  
Pulmonary Vein ◽  
Heart Rate Change ◽  
Rate Change ◽  
Study Cohort ◽  
The Mean ◽  
One Year ◽  
The One ◽  
The Impact

Abstract Purpose Cather ablation is known to influence the autonomic nervous system. This study sought to investigate the association of sinus heart rate pre-/post-ablation and recurrences in patients with atrial fibrillation undergoing pulmonary vein isolation (PVI). Methods Between January 2012 and December 2017, data of 482 patients undergoing their first PVI were included. Sinus heart rate was recorded before (PRE), directly post-ablation (POST) and 3 months post-ablation (3 M). All patients were screened for atrial tachyarrhythmia recurrences during the one-year follow-up. Results In the total study cohort, the mean resting sinus heart rate at PRE [mean 57.9 bpm (95% CI 57.1–58.7 bpm)] increased by over 10 bpm to POST [mean 69.4 bpm (95% CI 68.5–70.3 bpm); p < 0.001] followed by a slight decrease at 3 M [mean 67.3 bpm (95% CI 66.4–68.2 bpm)] but still remaining higher compared to PRE (p < 0.001). This pattern was observed in patients with and without recurrences at POST and 3 M (both p < 0.001 compared to PRE). However, at 3 M the mean sinus heart rate was significantly lower in patients with compared to patients without recurrences (p = 0.031). In this regard, patients with a heart rate change < 11 bpm (PRE to 3 M) or, as an alternative parameter, patients with a heart rate < 60 bpm at 3 M had a significantly higher risk of recurrences compared to the remaining patients (Hazard ratio (HR) 1.82 (95% CI 1.32–2.49), p < 0.001 and HR 1.64 (95% CI 1.20–2.25), p = 0.002, respectively). Conclusion Our study confirms the impact of PVI on cardiac autonomic function with a significant sinus heart rate increase post-ablation. Patients with a sinus heart rate change < 11 bpm (PRE to 3 M) are at higher risk for recurrences during one-year post-PVI.

LGBT* After Loss: A Mixed-Method Analysis on the Effect of Partner Bereavement on Interpersonal Relationships and Subsequent Partnerships

2019 ◽  
pp. 003022281983152
Author(s):  
Rachael Nolan ◽  
Chelsey Kirkland ◽  
Ronald Davis
Keyword(s):  
Sexual Orientation ◽  
Interpersonal Relationships ◽  
Mixed Method ◽  
Personal Characteristics ◽  
Valuable Insight ◽  
Mixed Methods Approach ◽  
Social Patterns ◽  
The Impact ◽  
Method Analysis ◽  
Insight Into

Grief and bereavement are universal human experiences that do not discriminate based on sex, gender, or sexual orientation. Existing literature provides valuable insight into the bereavement experiences of persons who identify as heterosexuals, but much less can be found on persons who identify as lesbian, gay, bisexual, or transgender/queer* (LGBT*). Given that the historical experiences of loss and personal characteristics such as interpersonal, familial, and social patterns of coping with grief are likely to influence the bereavement process, this study focused on the impact of partner bereavement on the interpersonal relationships and subsequent partnerships of the LGBT* bereaved. To this end, the purpose of this study was to use a mixed-methods approach to better understand how LGBT* persons described their experiences with partner bereavement and to identify what effect these experiences had on interpersonal relationships and subsequent partnerships.

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