scholarly journals EFFECTIVE BATON EXCHANGE IN THE 4X100 M RELAY RACE

Author(s):  
Ewa A. Zarębska ◽  
Krzysztof Kusy ◽  
Michał Włodarczyk ◽  
Tadeusz Osik ◽  
Jacek Zieliński

Baton exchange effectiveness and speed are essential to performance in sprint relay races, often deciding team victory. An effective baton exchange requires athletes to complete it while at full speed, both by the incoming and the outgoing athlete. Our research aimed to determine the relationship between baton exchange time and the point in the exchange zone where the handoff is completed. The study was carried out among Polish national team sprinters (n=27), competing in the 4x100 m relays. We analyzed 168 men’s and 62 women’s baton exchanges across the annual training cycle. In a 30-meter track segment corresponding to the baton exchange zone, we measured the time the baton spent in this segment (exchange time, ET), using the Brower Timing Systems (TC-System, USA), and the exact point of the baton handoff in this zone (handoff point, HP). To show the relationship between ET and HP, we performed a linear regression analysis. We have found that the further the HP the shorter the ET. This dependence is more evident in women (r=-0.66, r2=0.44 for 1st and 3rd exchanges, and r=-0.72, r2=0.52 for 2nd exchange; both P<0.001) than in men (r=-0.45, r2=0.20 and r=-0.68, r2=0.46; both P<0.001, respectively). The results suggest that the further the baton exchange takes place in the exchange zone (longer HP distance) the more effective the exchange (shorter ET). However, the coefficient of determination ranging (r2=0.20-0.52) indicates that HP explains at most 50% of the ET, and other factors should be taken into account. Nonetheless, the measuring technique proposed by us can provide coaches with additional data on baton exchange effectiveness and athletes' speed abilities.

Author(s):  
Brian D. Lowe

Psychophysical approaches to quantifying perceived effort have been used to evaluate the physical demand of many industrial work activities. An experiment was conducted to examine the relationship between ratings of whole-body perceived exertion and differentiated, regional ratings of exertion. The Borg, CR-10 scale was used by 16 subjects performing a simulated repetitive lifting task. Ratings of perceived exertion were obtained for the arms, legs, torso, and central (cardiorespiratory) effort sensations as well as a rating of overall, whole-body exertion. A multiple linear regression analysis was used to predict the whole-body rating of exertion from the differentiated ratings in lifting tasks using both a squat and stoop posture. In the stoop posture condition the coefficient of determination between whole-body perceived exertion and the model including arm, torso, and central ratings was R2=0.81. In the squat posture condition, the final regression model predicting whole-body exertion contained only the rating from the legs (R2 = 0.62). Differentiated ratings explained the majority of the variance in whole-body perceived exertion for squat and stoop lifting tasks.


Jurnal Ecopsy ◽  
2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Maya Irka Anggriani ◽  
Hemy Heryati Anward ◽  
Rooswita Santia Dewi

Penelitian ini bertujuan untuk mengetahui ada tidaknya peranan suasana kerja terhadap keinginan pindah kerja karyawan. Populasi pada penelitian ini yaitu seluruh karyawan PT. Hasnur Jaya Utama. Jenis pengambilan sampel yang dilakukan pada penelitian ini adalah Purposive Random Sampling yaitu pemilihan sampel secara acak sesuai dengan karakteristik yang ditentukan berdasarkan tujuan penelitian yang berjumlah 60 orang.  Sedangkan metode pengumpulan data dengan menggunakan skala suasana kerja, skala kepuasan kerja dan kuesioner keinginan pindah kerja. Dalam penelitian ini analisis data menggunakan analisis regresi linear sederhana. Hasil analisis peranan suasana kerja terhadap kepuasan kerja, diperoleh koefisien korelasi R sebesar 0,759 artinya hubungan suasana kerja dan kepuasan kerja erat. Ditemukan juga koefisien determinasi (R2) yang menunjukkan peranan suasana kerja terhadap kepuasan kerja sebesar 57,5% dan untuk analisis t observasi (8,882) > t tabel (1,672) menunjukkan  ada peranan suasana kerja terhadap kepuasan kerja. Kemudian, hasil analisis peranan kepuasan kerja terhadap keinginan pindah kerja ditemukan koefisien regresi R (0,680) artinya kepuasan kerja dan keinginan pindah kerja memiliki hubungan yang cukup erat. Selanjutnya, diperoleh juga (R2) yang menunjukkan peranan kepuasan kerja terhadap keinginan pindah kerja sebesar 46,3%  dan   untuk  analisis   t   observasi (-7,069) t tabel (1,672) menunjukkan ada peranan kepuasan kerja terhadap keinginan pindah kerja dengan signifikan negatif. Berdasarkan hasil penelitian tersebut maka dapat ditarik kesimpulan bahwa suasana kerja dan kepuasan kerja pada karyawan perlu diperhatikan oleh perusahaan agar dapat meminimalkan keinginan pindah kerja karyawan. Kata Kunci: Suasana kerja, kepuasan kerja, keinginan pindah kerjaThis study purposed to determine whether there is the influence of the working atmosphere to intention turnover on employees. The population in this study are all employees of PT. Hasnur Jaya Utama. Type of sampling conducted in this study is Purposive Random Sampling is the selection of a random sample according to the characteristics that are determined based on the research goals of 60 people. The methods of data collection by using the scale of the working atmosphere, the scale of job satisfaction and intention turnover questionnaire. In this study analyzes the data using simple linear regression analysis. The results of the analysis of the influence of working atmosphere to job satisfaction, the correlation coefficient R of 0.759 means that the relationship working atmosphere and job satisfaction is quite close. Also found the coefficient of determination (R2) which indicates the role of working conditions on job satisfaction at 57.5% and for the analysis of observation (8.882) > t table (1.672) which indicates means that the influence of the atmosphere to job satisfaction. Then, the results of the analysis of the influence of job satisfaction to intention turnover a correlation coefficient R (0.680) means that job satisfaction and intention turnover to have a close relationship. Furthermore, also obtained (R2 ) which indicates the role of job satisfaction to intention turnover of 46,3% and for the analysis of t observation (-7.069) > t table (1.672) which indicates means that the influence of job satisfaction to intention turnover with a significant negative . Based on these results it can be concluded that the working atmosphere and job satisfaction in employees need to be considered by the company in order to minimize intention turnover ob the employees. Keywords: The working atmosphere, job satisfaction, intention turnover.


2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Dian Puspita Sari ◽  
Devi Yasmin ◽  
Fenni Supriadi

The purpose of this study was to determine the effect of the work environment on employee motivation at PT. Permata Borneo Lestari Mempawah Regency. The number of samples used in this study was 70 people.The data analysis techniques in this study are Simple Linear Regression Analysis, Correlation Coefficient Analysis (r), Determination Coefficient Analysis (R2), Feasibility Test Regression Model (Test F). the results of this study note that the regression equation Y = 2,983 + 0,387X. The value of the Correlation Coefficient (r) is 0,466, which means that the relationship between the work environment and employee motivation at PT. Permata Borneo Lestari Mempawah Regency is medium. The value of the coefficient of determination (R2) is 0,217. it means that the contribution of the variable Work Environment in influencing the ups and downs of Work Motivation of employees at PT. Permata Borneo Lestari Mempawah Regency is 21,7% and the remaining 78,3% is influenced by other variables not examined in this study. The calculated F value is 18,889. This is higher than f table which is worth 3,98. it means that the linear regression model can be used to predict the value of Employee A motivation that is influenced by the Work Environment at PT. Permata Borneo Lestari Mempawah Regency.


2019 ◽  
Vol 4 (1) ◽  
pp. 57-63
Author(s):  
Yuniarti Yuniarti

To find out the relationship between profitability ratios to stock prices used inferential research. Profitabilityratios are proxied byreturn on asset as variable X1, net profit margin as variableX2, gross profit margin asvariableX3, andreturn on equityas variable X4. The stock price is proxied by closing price as the variable Y.Analysis techniques using multiple linear regression, analysis coefficient of determination and testing ofhypothesis both F-test and T-test. The results of the regre


2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Jalu Adi Prakoso ◽  
Suci Rahmawati Prima ◽  
M. Chrisna Satriagasa ◽  
M. Syahli IMNS

<p>Optimizing the management of potential areas would provide additional revenue for the region. This research aims to assess whether the government in the counties and cities in Central Java province has been optimally manage their potentials so as to provide benefits beupa increased local revenues derived from the wealth management area. Through the relationship between the variables of the original income (PAD) and the Gross Domestic Product (GRDP) in the counties and cities in Central Java is expected to be known whether each area has been optimal in obtaining local revenue. The data used is data sekuder form of data revenues and GRDP in counties and cities in the province of Central Java during the years 2011-2013 were berusmber from the Central Statistics Agency (BPS), the Supreme Audit Agency (BPK), Report of Realized APBD, and RPJMD Central Java.</p><p>Methods of data analysis in this research is to use a simple linear regression analysis (OLS Model) and design analysis group. The analysis showed the existence of ties between the GRDP and the PAD. The magnitude of the relationship analyzed by simple linear regression, where the results indicate a positive trend. That is, there is a directly proportional relationship anatara GRDP and PAD. The coefficient of determination of 99.9% explained that the GRDP variable can be explained by the variable revenue of 99.9%, while 0.1% is explained by other variables.</p><p>The analysis showed that the GRDP value of the coefficient b&gt; b PAD either at the district, town and overall. These results indicate that there has been no attempt by the government to manage PAD so as to generate the GRDP increase. The government can manage the outcome of PAD to be used in a way that increases the GRDP obtained. As for the test results to determine differences in optimizing the management of local revenue between districts and cities showed that the district can generate GRDP is greater with smaller PAD. It shows that the effort made by the district is more efficient than the effort undertaken by the municipality.</p><p>Spatial analysis shows a comparison of the GRDP against the PAD in each county and city in Central Java province is divided into four clusters. Each cluster has a distinct regional characteristics seen from economic activity. The results of the socio-economic analysis of the economy in Central Java province when seen from the conditions of employment, which absorbs the most amount of power keraja is in the agricultural sector, which amounted to 31%, followed by the trade sector 22% and industry 19%.</p><p>Keyword: Decentralization, PAD, GRDP</p>


2020 ◽  
Vol 2 (2) ◽  
pp. 104
Author(s):  
Dini Haryani ◽  
Eva Rachmawati ◽  
Ae Suaesih

This research was conducted at Parahyangan Golf Club Bandung. The purpose of this study was to determine the relationship of Reliability, Responsiveness, and Emphaty on Customer Loyalty both simultaneously and partially. The method used in this research uses associative descriptive method. This study uses 99 as a research sample using multiple linear regression analysis. Testing the hypothesis in this study using the statistical F-test and t-test. The statistical analysis process uses the SPSS for Windows program. Based on the results of the study, the influence of Reliability, Responsiveness, and Emphaty on Customer Loyalty at Parahyangan Golf Club Bandung conducted with the analysis of the coefficient of determination has an influence meaning that Reliability, Responsiveness, and Emphaty have an effect on Customer Loyalty is influenced by other factors not examined by the authors.


Author(s):  
Baihaqi Ammy ◽  
Siti Azizah

This research aims to prove whether there is an effect To test the Price Earning Ratio (PER) in moderating the effect of Return On Equity (ROE) on stock prices in construction and building sub-sector companies listed on the Indonesia Stock Exchange in 2015 – 2020. This type of research is associative research. The sampling technique used is purposive sampling. The data used is secondary data in the form of financial statements of construction sub-sector companies listed on the Indonesia Stock Exchange (IDX) obtained through the website www.idx.co.id. This data will be analyzed using multiple linear regression analysis method, which is a descriptive statistical method used to analyze data for more than two research variables. Classical assumption test used is normality test, multicollinearity test, heteroscedasticity test, and autocorrelation test. To test regression with moderating variablesModerating Regression Analysis (MRA) Test. The hypothesis testing used is t-test, F-test, and the coefficient of determination (R2). This study resulted in five findings as proposed in the research hypothesis. First,Earnings Per Share (EPS) significant effect on stock prices in the construction and building sub-sector companies listed on the Indonesia Stock Exchange. Second, Return On Equity (ROE) has a significant effect on stock prices in construction and building sub-sector companies listed on the Indonesia Stock Exchange. Third, Earning Per Share (EPS) and Return On Equity (ROE) simultaneously have a significant effect on stock prices in construction and building sub-sector companies listed on the Indonesia Stock Exchange. Fourth,Variable interaction results Earning Per Share (EPS) with Price Earning Ratio (PER) is a moderating variable, so Price Earning Ratio (PER) can strengthen the relationship Earning Per Share (EPS) to stock prices. Fifth,Variable interaction results Return On Equity (ROE) with Price Earning Ratio (PER) can strengthen the relationship Return On Equity (ROE) to stock prices.


Prologia ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 74
Author(s):  
Disha Naftali ◽  
Farid Rusdi

Many ways are used to support the appearance properly one of which is to treat the body and use beauty products. Many quality products offered by Sociolla.com sometimes make users also confused to choose the best product for their conditions. With the Beauty Journal feature, users can find out in advance superior products that are in accordance with the user's skin condition, based on price, based on local brands and others. The purpose of this study was to determine the effect of the relationship between the motives for using information in the Beauty Journal with the satisfaction of Sociolla.com website visitors. This study uses a quantitative approach. The theoretical foundation used in this research is uses and gratification and online media. The independent variable in this study is the motive for using Beauty Journal information and the dependent variable is the level of satisfaction of website visitors at sociolla.com on the information in the Beauty Journal feature. Researchers used a purposive sampling technique with 100 respondent sample. Data collection was carried out by distributing questionnaires in the form of Google Forms consisting of 30 indicators. Data analysis techniques used correlation coefficients, simple linear regression analysis and coefficient of determination. The final result obtained is the motive for using information in the Beauty Journal to influence the satisfaction of visitors to the website sociolla.com.Banyak cara yang digunakan untuk menunjang penampilan dengan baik salah satunya adalah dengan merawat tubuh dan menggunakan produk kecantikan. Banyak produk yang berkualitas yang ditawarkan oleh Sociolla.com terkadang membuat pengguna juga bingung untuk memilih produk yang terbaik untuk kondisi mereka. Dengan adanya fitur Beauty Journal, pengguna bisa mencari tahu terlebih dahulu produk unggulan yang sesuai dengan kondisi kulit pengguna, berdasarkan harga, berdasarkan merek lokal dan lain-lain. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh hubungan motif penggunaan informasi dalam Beauty Journal dengan kepuasan pengunjung website Sociolla.com. Penelitian ini menggunakan pendekatan kuantitatif. Landasan teori yang digunakan dalam penelitian ini yaitu uses and gratification dan media online. Variabel independen pada penelitian ini adalah motif penggunaan informasi Beauty Journal dan variabel dependen adalah tingkat kepuasan pengunjung website sociolla.com terhadap informasi dalam fitur Beauty Journal. Peneliti menggunakan teknik purposive sampling dengan sampel sebanyak 100 responden. Pengumpulan data dilakukan dengan menyebarkan kuisioner berupa Google Forms yang terdiri dari 30 indikator. Teknik analisis data menggunakan koefisien korelasi, analisis regresi linear sederhana dan koefisien determinasi. Hasil akhir yang diperoleh adalah motif penggunaan informasi dalam Beauty Journal berpengaruh terhadap kepuasan pengunjung website sociolla.com.


2021 ◽  
Vol 3 (1) ◽  
pp. 75-84
Author(s):  
Bustanul Arif

This study aims to determine the relationship between work discipline and work motivation with the performance of MAN teachers in Bandar Lampung. This type of research is associative quantitative with a total population of 164 teachers and a research sample of 63 teachers. The data collection technique used a questionnaire. The data were analyzed using simple linear regression analysis and multiple linear regression analysis using IBM SPSS Statistics 23. The results showed that work motivation have a significant relationship with teacher performance. Judging from the value of the coefficient of determination of 0.550, the results show that the contribution or contribution of the relationship between X1 work discipline and X2 work motivation with Y teacher performance is 55% while the remaining 45% is the contribution of other variables not included in the study. 


2019 ◽  
Vol 5 (1) ◽  
pp. 22-30
Author(s):  
Wiwit Ayu Retno Sari ◽  
Suhendro Suhendro ◽  
R. Riana Dewi

This research aims to test the influence of accounting information system and work stress on performance of employees of PT Efrata Retailindo. The type of research used in this research is quantitative research. The source of the data in the research is primary data. The population in this study are all employees of PT Efrata Retailindo totalling 47 people. Sampling techniques in the study using a purposive sample. While the data collection method used is to use the questionnaire to all employees of PT Efrata Retailindo. Data analysis techniques using multiple linear regression analysis. Based on the results of the study it can be concluded that work stress had no effect on performance of employees of PT Efrata Retailindo, while information systems accounting effect on the performance of the employees of PT Efrata Retailindo. The value of the coefficient of determination (R2) amounting to 0.106. This indicates that variansi on a variable performance practice undertaken by the company PT Efrata Retailindo of 10.6% can be explained by work stress variables and accounting information systems, while the remaining 89.4% explained by other factors outside the researched.


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