scholarly journals CrossFit® Open Performance is Affected by the Nature of Past Competition Experiences

2021 ◽  
Author(s):  
Gerald T Mangine ◽  
Jacob M. McDougle
Keyword(s):  
Standard Deviation ◽  
Correlation Coefficients ◽  
Participation Rate ◽  
Bayes Factors ◽  
Random Selection ◽  
Kendall’S Tau ◽  
Kendall's Tau ◽  
Significant Relationships

Abstract Purpose: To examine the relationships between past competition performances and 2020 CrossFit® Open (CFO) performance. Methods: A random selection from the top one thousand athletes (n = 220, 28.5 ± 4.4 years, 178 ± 7 cm, 87.5 ± 10.2 kg) were selected for this study. Overall and weekly performances (including ranks and scores) of the 2020 CFO, as well as overall ranks from previous CFO, regional, and Games™ competitions, were recorded from their publicly available online profile. The highest, lowest, average, and standard deviation (SD) of past rankings, as well as participation statistics (i.e., years since first appearance, total and consecutive appearances, and participation rate), were calculated for each competition stage. Relationships were then assessed between 2020 CFO performance and all past competition experience variables by calculating Kendall’s tau (τ) correlation coefficients and Bayes factors (BF10). Results: Overall and weekly ranking of the 2020 CFO was extremely favored (p < 0.001, BF10 > 100) to be related to the athlete’s highest previous CFO rank (τ = 0.26 – 0.39) and individual regional appearances (τ = –0.26 to –0.34), as well as individual Games™ appearances (overall and for weeks 1, 3, and 4; τ = –0.20 to –0.22, p < 0.001, BF10 > 100). Evidence for all other significant relationships ranged from moderate to very strong (p < 0.05, BF10 = 3 – 100) and varied among specific 2020 CFO workouts. Few associations were noted for team competition experience, and these were generally limited to Games™ appearances (τ = –0.12 to –0.18, p < 0.05, BF10 = 3.3 – 100). Conclusions: Although specific relationships were found between 2020 CFO performance and individual appearances at regional and Games™ competitions, the most consistent relationships were seen with participation and ranking in past CFO competitions.

scholarly journals I did eat my vegetables. Agreement between parent and child food intake diaries

2016 ◽  
Vol 19 (17) ◽  
pp. 3106-3113 ◽  
Author(s):  
Natalie Rangelov ◽  
L Suzanne Suggs ◽  
Pedro Marques-Vidal
Keyword(s):  
Eating Behaviour ◽  
Correlation Coefficients ◽  
Cross Sectional Study ◽  
Food Groups ◽  
Food Diary ◽  
Kendall’S Tau ◽  
Cross Sectional ◽  
Kendall's Tau ◽  
Puff Pastry ◽  
Level Of Agreement

AbstractObjectiveTo assess the level of agreement between children and their parents when reporting a child’s food consumption.DesignCross-sectional study in which children and parents independently completed 7 d food diaries describing the foods and drinks the child consumed at every meal and snack. The association between child and parent reporting was assessed for nineteen food groups using Kendall’s tau-b non-parametric correlations, Spearman’s rank correlations, kappa coefficients and Lin’s concordance measure of agreement. Results were also stratified by gender of the child and his/her grade at school.SettingHouseholds in Ticino, Switzerland, April–June 2014.SubjectsTwo hundred and ninety-nine children aged 6–12 years and one of their parents participated, with 264 providing complete data (35 % completion rate).ResultsResults showed a high level of agreement between child and parent reporting. Spearman correlations ranged from 0·55 (sauces) and 0·57 (fatty meat) to 0·80 (fruit), 0·83 (starchy foods) and 0·84 (pastries). All nineteen Spearman correlations were significant at the 0·001 level. Kendall’s tau-b correlations ranged from 0·44 (fat meat) to 0·81 (puff pastry). Kappa values showed low to high levels of agreement, ranging from 0·15 (sweets) to 0·77 (puff pastry). Lin’s concordance correlation coefficients ranged from 0·39 (whole grains) to 0·86 (puff pastry).ConclusionsWhen assessing the eating behaviour of children using a 7 d food diary, children’s reports might be as reliable as their parents’.

Reliability of the Minimum Masking Level as Outcome Variable in Tinnitus Clinical Research

2020 ◽  
Vol 29 (3) ◽  
pp. 429-435
Author(s):  
Patricia C. Mancini ◽  
Richard S. Tyler ◽  
Hyung Jin Jun ◽  
Tang-Chuan Wang ◽  
Helena Ji ◽  
...  
Keyword(s):  
Standard Deviation ◽  
High Frequency ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Outcome Variable ◽  
Reliable Estimate ◽  
Moderate Correlation ◽  
Trained Subjects ◽  
The Relationship ◽  
Minimum Intensity

Purpose The minimum masking level (MML) is the minimum intensity of a stimulus required to just totally mask the tinnitus. Treatments aimed at reducing the tinnitus itself should attempt to measure the magnitude of the tinnitus. The objective of this study was to evaluate the reliability of the MML. Method Sample consisted of 59 tinnitus patients who reported stable tinnitus. We obtained MML measures on two visits, separated by about 2–3 weeks. We used two noise types: speech-shaped noise and high-frequency emphasis noise. We also investigated the relationship between the MML and tinnitus loudness estimates and the Tinnitus Handicap Questionnaire (THQ). Results There were differences across the different noise types. The within-session standard deviation averaged across subjects varied between 1.3 and 1.8 dB. Across the two sessions, the Pearson correlation coefficients, range was r = .84. There was a weak relationship between the dB SL MML and loudness, and between the MML and the THQ. A moderate correlation ( r = .44) was found between the THQ and loudness estimates. Conclusions We conclude that the dB SL MML can be a reliable estimate of tinnitus magnitude, with expected standard deviations in trained subjects of about 1.5 dB. It appears that the dB SL MML and loudness estimates are not closely related.

scholarly journals Workload for radiologists during on-call hours: dramatic increase in the past 15 years

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
R. J. M. Bruls ◽  
R. M. Kwee
Keyword(s):  
Western Europe ◽  
Kendall Test ◽  
Kendall’S Tau ◽  
Kendall's Tau ◽  
X Ray ◽  
The Past ◽  
Relative Value ◽  
Burn Out ◽  
Picture Archiving And Communication ◽  
Ct Studies

Abstract Background The objective of this study is to investigate the workload for radiologists during on-call hours and to quantify the 15-year trend in a large general hospital in Western Europe. Methods Data regarding the number of X-ray, ultrasound and computed tomography (CT) studies during on-call hours (weekdays between 6.00 p.m. and 7.00 a.m., weekends, and national holidays) between 2006 and 2020 were extracted from the picture archiving and communication system. All studies were converted into relative value units (RVUs) to estimate the on-call workload. The Mann–Kendall test was performed to assess the temporal trend. Results The total RVUs during on-call hours showed a significant increase between 2006 and 2020 (Kendall's tau-b = 0.657, p = 0.001). The overall workload in terms of RVUs during on-call hours has quadrupled. The number of X-ray studies significantly decreased (Kendall's tau-b = − 0.433, p = 0.026), whereas the number of CT studies significantly increased (Kendall's tau-b = 0.875, p < 0.001) between 2006 and 2020. CT studies which increased by more than 500% between 2006 and 2020 are CT for head trauma, brain CTA, brain CTV, chest CT (for suspected pulmonary embolism), spinal CT, neck CT, pelvic CT, and CT for suspected aortic dissection. The number of ultrasound studies did not change significantly (Kendall's tau-b = 0.202, p = 0.298). Conclusions The workload for radiologists during on-call hours increased dramatically in the past 15 years. The growing amount of CT studies is responsible for this increase. Radiologist and technician workforce should be matched to this ongoing increasing trend to avoid potential burn-out and to maintain quality and safety of radiological care.

scholarly journals Statistical analysis of solid waste composition data: Arithmetic mean, standard deviation and correlation coefficients

2017 ◽  
Vol 69 ◽  
pp. 13-23 ◽  
Author(s):  
Maklawe Essonanawe Edjabou ◽  
Josep Antoni Martín-Fernández ◽  
Charlotte Scheutz ◽  
Thomas Fruergaard Astrup
Keyword(s):  
Statistical Analysis ◽  
Standard Deviation ◽  
Solid Waste ◽  
Correlation Coefficients ◽  
Arithmetic Mean ◽  
Composition Data ◽  
Waste Composition

scholarly journals High association of COVID-19 severity with poor gut health score in Lebanese patients

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0258913
Author(s):  
Imad Al Kassaa ◽  
Sarah El Omari ◽  
Nada Abbas ◽  
Nicolas Papon ◽  
Djamel Drider ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Regression Models ◽  
Equal Proportion ◽  
Gut Health ◽  
Kendall’S Tau ◽  
High Association ◽  
Kendall's Tau ◽  
Health Score ◽  
Logistic Regression Models ◽  
The Impact

Background Coronavirus disease 2019 (COVID-19) has affected millions of lives globally. However, the disease has presented more extreme challenges for developing countries that are experiencing economic crises. Studies on COVID-19 symptoms and gut health are scarce and have not fully analyzed possible associations between gut health and disease pathophysiology. Therefore, this study aimed to demonstrate a potential association between gut health and COVID-19 severity in the Lebanese community, which has been experiencing a severe economic crisis. Methods This cross-sectional study investigated SARS-CoV-2 PCR-positive Lebanese patients. Participants were interviewed and gut health, COVID-19 symptoms, and different metrics were analyzed using simple and multiple logistic regression models. Results Analysis of the data showed that 25% of participants were asymptomatic, while an equal proportion experienced severe symptoms, including dyspnea (22.7%), oxygen need (7.5%), and hospitalization (3.1%). The mean age of the participants was 38.3 ±0.8 years, and the majority were males (63.9%), married (68.2%), and currently employed (66.7%). A negative correlation was found between gut health score and COVID-19 symptoms (Kendall’s tau-b = -0.153, P = 0.004); indicating that low gut health was associated with more severe COVID-19 cases. Additionally, participants who reported unhealthy food intake were more likely to experience severe symptoms (Kendall’s tau-b = 0.118, P = 0.049). When all items were taken into consideration, multiple ordinal logistic regression models showed a significant association between COVID-19 symptoms and each of the following variables: working status, flu-like illness episodes, and gut health score. COVID-19 severe symptoms were more common among patients having poor gut health scores (OR:1.31, 95%CI:1.07–1.61; P = 0.008), experiencing more than one episode of flu-like illness per year (OR:2.85, 95%CI:1.58–5.15; P = 0.001), and owning a job (OR:2.00, 95%CI:1.1–3.65; P = 0.023). Conclusions To our knowledge, this is the first study that showed the impact of gut health and exposure to respiratory viruses on COVID-19 severity in Lebanon. These findings can facilitate combating the pandemic in Lebanon.

scholarly journals Hubungan Screen Based Activity dan Perilaku Makan dengan Status Gizi Anak Usia 10-12 Tahun (Studi di SDI Darush Sholihin Kabupaten Nganjuk)

2021 ◽  
Vol 5 (3) ◽  
pp. 223
Author(s):  
Silvia Alfinnia ◽  
Lailatul Muniroh ◽  
Dominikus Raditya Atmaka
Keyword(s):  
Food Frequency Questionnaire ◽  
Random Sampling ◽  
Kendall’S Tau ◽  
Cross Sectional ◽  
Kendall's Tau ◽  
Food Frequency ◽  
Food Recall

ABSTRAK Latar Belakang: Anak usia sekolah mengalami peningkatan kebutuhan gizi untuk tumbuh kembang. Di usia ini, anak-anak bisa memilih makanan maupun media bermain sesuai keinginan mereka. Aktivitas menggunakan layar yang berlebih serta perilaku makan yang buruk dapat memicu terjadinya obesitas.Tujuan: Penelitian ini bertujuan untuk menganalisis hubungan Screen Based Activity (SBA) dan perilaku makan dengan status gizi anak usia sekolah.Metode: Penelitian ini merupakan penelitian observasional analitik dengan desain penelitian cross sectional. Penelitian dilakukan di SDI Darush Sholihin Kabupaten Nganjuk. Besar sampel sebanyak 48 siswa yang dipilih secara proportional random sampling. Pengumpulan data meliputi berat badan, tinggi badan, kuesioner SBA, Food Frequency Questionnaire (FFQ), serta food recall 2x24 jam. Data dianalisis menggunakan uji korelasi Spearman dan Kendall’s tau dengan nilai signifikansi 0,05.Hasil: Hasil penelitian menunjukkan bahwa tidak ada hubungan SBA (p=0,151), perilaku makan makanan pokok (p=0,101), perilaku makan lauk hewani (p=0,212), perilaku makan lauk nabati (p=0,829), perilaku makan sayuran (p=0,751) dan perilaku makan jajanan (p=0,109) dengan status gizi. Namun, terdapat hubungan perilaku makan buah (p=0,040) dengan status gizi.Kesimpulan: Konsumsi buah-buahan yang sering tanpa memperhatikan kandungan gula dan cara penyajian dapat memberikan risiko obesitas pada anak. Diperlukan pendidikan gizi kepada pihak sekolah maupun orang tua mengenai pembatasan SBA dan perilaku makan sehat terutama buah untuk mencapai tumbuh kembang yang optimal dan terhindar dari obesitas.

Sign in / Sign up

Export Citation Format

Share Document