scholarly journals Experimental study of standing and walking at work — What is compatible with physiological characteristics and human needs?

2021 ◽  
Author(s):  
Lisa Rücker ◽  
Johannes Brombach ◽  
Klaus Bengler
Keyword(s):  
Experimental Study ◽  
Physiological Characteristics ◽  
Subjective Rating ◽  
Muscle Strain ◽  
Small Step ◽  
Human Needs ◽  
Leg Muscles ◽  
Movement Dynamics ◽  
Significant Difference ◽  
Dynamic Components

AbstractAn experimental study with two scenarios S1 and S2 was conducted, in which the standing and walking proportions as well as movement dynamics were varied. Eleven participants have taken part in the study for 2.5 h each (cycle time: 90 s). By means of surface electromyography, the static and dynamic components of muscle strain as well as the muscle fatigue were recorded and compared with the results of water plethysmography and a structured subjective rating survey. The results of the EMG study showed significantly higher dynamic components of the EA at S2 compared to S1, while the static components for the same activities did not show any significant difference, as expected. S1 and S2 always led to an increase in volume of the lower leg. Standing with less walking (S1) resulted in a significantly higher increase than standing with a higher proportion of walking and stronger dynamic movements (S2). In scenario S2, compared to scenario S1, the participants reported weaker subjective complaints which were also reported later in time. The results on muscular fatigue indicated only partially significant differences between S1 and S2. The results make clear that the dynamics of movement are a decisive criterion for assessing standing activities.Practical Relevance: To relieve strain during standing work, “real” walking movement must be integrated into the workflow. It could be shown that only a small step to the side or a few “shuffling” steps are not sufficient. In contrast, it is compatible with human physiological characteristics to make correct steps and dynamically activate the leg muscles.

Effectiveness of Virtual Resilience Training on Assertiveness in Student Girls Aged 9–10 Years: A 1-Month Follow-Up

2021 ◽  
pp. 105984052110135
Author(s):  
Shima Gadari ◽  
Jamile Farokhzadian ◽  
Parvin Mangolian Shahrbabaki
Keyword(s):  
Experimental Study ◽  
Internal Stress ◽  
Intervention Group ◽  
The Other ◽  
Hormonal Changes ◽  
Emotional Instability ◽  
Other Hand ◽  
Significant Difference ◽  
Resilience Training

Girls between the ages of 9 and 10 begin to experience physical, physiological, and hormonal changes that may lead to internal stress. At this age, children are struggling for autonomy; on the other hand, they may experience emotional instability, and for these reasons, they may be vulnerable in many ways. This experimental study aimed to investigate the effect of resilience training on assertiveness in student girls aged 9–10. Data were collected before, immediately after, and 1 month after the intervention in the control ( n = 40) and intervention ( n = 37) groups. There was a significant difference between the assertiveness of the intervention immediately (26.80 ± 3.73) and 1 month after the intervention (27.05 ± 3.73), and assertiveness significantly increased in the intervention group ( p = .0001). Resilience training leads to improvements in assertiveness in student girls aged 9–10.

scholarly journals Does Ramadan Fasting Affect Spirometric Data of Healthy Adolescents?

2019 ◽  
Vol 13 ◽  
pp. 117955651986228
Author(s):  
Selma Ben Fraj ◽  
Amira Miladi ◽  
Fatma Guezguez ◽  
Mohamed Ben Rejeb ◽  
Jihène Bouguila ◽  
...  
Keyword(s):  
Experimental Study ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Healthy Male ◽  
Ramadan Fasting ◽  
Male Adolescents ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Expiratory Flow ◽  
Healthy Males

Purpose: Several studies raised the effects of Ramadan fasting on healthy adults spirometric data, but none was performed in children. The aim of this study was to compare the spirometric data of a group of faster adolescents (n = 26) with an age-matched non-faster one (n = 10). Methods: This comparative quasi-experimental study, including 36 healthy males aged 12 to 15 years, was conducted during the summer 2015 (Ramadan: June 18 to July 16). Three sessions (Before-Ramadan [Before-R], Mid-Ramadan [Mid-R], After-Ramadan [After-R]) were selected for spirometry measurements. Spirometry was performed around 5.5 to 3.5 h before sunset and the spirometric data were expressed as percentages of local spirometric norms. Results: The two groups of fasters and non-fasters had similar ages and weights (13.35 ± 0.79 vs 12.96 ± 0.45 years, 46.8 ± 9.2 vs 41.7 ± 12.6 kg, respectively). There was no effect of Ramadan fasting on forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC, peak expiratory flow, and maximal mid-expiratory flow. For example, during the Before-R, Mid-R, and After-R sessions, there was no significant difference between the fasters and non-fasters mean FVC (101 ± 11 vs 99 ± 14, 101 ± 12 vs 102 ± 14, 103 ± 11 vs 104 ± 13, respectively) or FEV1 (101 ± 13 vs 96 ± 16, 98 ± 11 vs 97 ± 16, 101 ± 10 vs 98 ± 16, respectively). Conclusions: Ramadan fasting had no interaction effect with the spirometric data of Tunisian healthy male adolescents.

scholarly journals Microdialysis Study of Aztreonam-Avibactam Distribution in Peritoneal Fluid and Muscle of Rats with or without Experimental Peritonitis

2018 ◽  
Vol 62 (10) ◽  
Author(s):  
Alexia Chauzy ◽  
Isabelle Lamarche ◽  
Christophe Adier ◽  
William Couet ◽  
Sandrine Marchand
Keyword(s):  
Cecal Ligation ◽  
Extracellular Fluid ◽  
Abdominal Sepsis ◽  
Nonparametric Tests ◽  
Pharmacokinetic Analysis ◽  
Jugular Veins ◽  
Leg Muscles ◽  
Significant Difference ◽  
Liquid Chromatography Tandem Mass ◽  
Microdialysis Study

ABSTRACT The purpose of this study was to investigate aztreonam (ATM) and avibactam (AVI) distribution in intraperitoneal fluid and muscle interstitial fluid by microdialysis in rats, with or without peritonitis, and to compare the unbound concentrations in tissue with the unbound concentrations in blood. Microdialysis probes were inserted into the jugular veins, hind leg muscles, and peritoneal cavities of control rats (n = 5) and rats with intra-abdominal sepsis (n = 9) induced by cecal ligation and punctures. ATM and AVI probe recoveries in each medium were determined for both molecules in each rat by retrodialysis by drug. ATM-AVI combination was administered as an intravenous bolus at a dose of 100-25 mg · kg−1. Microdialysis samples were collected over 120 min, and ATM-AVI concentrations were determined by liquid chromatography-tandem mass spectrometry. Noncompartmental pharmacokinetic analysis was conducted and nonparametric tests were used for statistical comparisons between groups (infected versus control) and medium. ATM and AVI distribution in intraperitoneal fluid and muscle was rapid and complete both in control rats and in rats with peritonitis, and the concentration profiles in blood, intraperitoneal fluid, and muscle were virtually superimposed, in control and infected animals, both for ATM and AVI. No statistically significant difference was observed between unbound tissue extracellular fluid and systemic areas under the curve for both molecules in control and infected animals. In the present study, intraperitoneal infection induced by cecal ligation and puncture had no apparent effect on ATM and AVI pharmacokinetics in rats.

scholarly journals Optimization of Thirst Management on CKD Patients Undergoing Hemodialysis by Sipping Ice Cube

2019 ◽  
Vol 2 (1) ◽  
pp. 38
Author(s):  
Yunie Armiyati ◽  
Khoiriyah Khoiriyah ◽  
Ahmad Mustofa
Keyword(s):  
Chronic Kidney Disease ◽  
Experimental Study ◽  
Kidney Disease ◽  
Fluid Intake ◽  
Average Length ◽  
Hemodialysis Patients ◽  
Fluid Restriction ◽  
Compliance Management ◽  
Ice Cube ◽  
Significant Difference

Excess fluid is a major problem in patients with Chronic Kidney Disease (CKD). CKD patients undergoing hemodialysis must keep limiting fluid intake during the interdialysis period so that excess fluid does not occur. Consequently limiting fluid intake arises thirst and will affect fluid restriction compliance. Management of thirst that can be done in hemodialysis patients, among others, suck ice cubes, gurgling the ripe water and gurgling with mouthwash, each of which has a different action against patients thirst. The purpose of this study was to compare the three interventions "thirst management", namely sipping ice cubes, gargling ripe water and gargling with mouthwash against patient thirst. This study was an experimental study in 27 samples of CKD patients who underwent hemodialysis at Roemani Muhammadiyah Hospital in Semarang divided into 3 groups with each group 9 samples. The results showed that the duration of holding thirst for the group sipping on ice cubes averaged 93 minutes, the gurgling group of ripe water averaged 55 minutes and the average length of time holding the thirst group who gurgling with mouthwash was 69.71 minutes. There was no significant difference in the duration of holding thirst after sucking on ice cubes and gargling ripe water, and gargling with mouthwash (ρ value 0.061). Sipping ice cubes can fight the longest thirst compared to gargling ripe water or gargling with mouthwash. The recommendations of this study are expected to intervene to sipping ice cubes, gargling ripe water and gargling with mouthwash can be used for thirst management in hemodialysis patients.  Hemodialysis patients can choose interventions to reduce the thirst that is most appropriate.

scholarly journals БІОЛОГІЧНІ ОСОБЛИВОСТІ РОБОЧИХ БДЖІЛ СІМЕЙ ІЗ РІЗНОЮГІГІЄНІЧНОЮПОВЕДІНКОЮ

2014 ◽  
pp. 96-98
Author(s):  
Л. П. Шамро ◽  
Т. М. Соловйова
Keyword(s):  
High Resolution ◽  
Comparative Study ◽  
Body Fat ◽  
Fat Body ◽  
Physiological Characteristics ◽  
Hygienic Behavior ◽  
Significant Difference

Проведені порівняльні дослідження анатомо-фізіологічних показників бджіл (концентрація білка угемолімфі, ступені розвитку глоткових залоз і жиро-вого тіла) у сім’ях із високою та низькою гігієнічноюповедінкою впродовж чотирьох періодів активногопасічницького сезону. Виявлено, що концентраціябілка у гемолімфі бджіл сімей із високою сануючоюздатністю свого гнізда впродовж сезону на 6,35–15,8 % вища порівняно з сім’ями з нижчим рівнемгігієнічної поведінки. Не відмічено суттєвої різниціступенів розвитку жирового тіла й глоткових залоз убджіл обох груп бджолиних сімей. A comparative study of the anatomical and physiological characteristics of bees (the concentration of protein in the hemolymph of bees, the degree of pharyngeal glands and fat body) in families with high and low hygienic behavior during four periods of active beekeeping season. We found that the concentration of protein in the hemolymph of bees in families with high resolution sanifying their nests during the season to 6.35-15.8 % higher compared with families with lower hygienic behavior. No significant difference observed levels of body fat and pharyngeal glands of bees in both groups of bees .

scholarly journals Perbedaan Indeks Plak setelah Pengolesan Ekstrak Daging Buah Naga Merah (Hylocereus costaricensis) dan Larutan Pengungkap

2019 ◽  
Vol 16 (1) ◽  
pp. 21
Author(s):  
Hillary Inggrid Prananta ◽  
Purwanto Purwanto ◽  
Elyda Akhya Afida Misrohmasari ◽  
Niken Probosari ◽  
Surartono Dwiatmoko
Keyword(s):  
Experimental Study ◽  
Hydrogen Bonds ◽  
Dental Plaque ◽  
Plaque Index ◽  
Group Comparison ◽  
Fruit Flesh ◽  
Dragon Fruit ◽  
Significant Difference ◽  
The Difference ◽  
Static Group

Red dragon fruit flesh extract contains of anthocyanin as red pigmen that potentially to be a natural dye. Athocyanin contains of polysaccharide that can binding with polysaccharide of dental plaque called hydrogen bonds, so dental plaque has been colored and potentially as alternative of disclosing solution. The purpose of this study was to find out the difference of plaque index after smeared by red dragon fruit flesh extract 75% and disclosing solution. The method of this study is a clinical experimental study with a static-group comparison design. 20 subjects were examined the plaque index after smeared with red dragon fruit flesh extract 75%) and disclosing solution). There was no significant difference between groups. Conclusions: Red dragon fruit flesh extract 75% had similar capability with disclosing solution to examine dental plaque.

scholarly journals Pengaruh penambahan serbuk jagung pada komposisi media tanam terhadap pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus)

2021 ◽  
Vol 10 (2) ◽  
pp. 158-170
Author(s):  
Muhaeming Muhaeming ◽  
Jamilah Jamilah ◽  
Zulkarnaim Zulkarnaim
Keyword(s):  
Experimental Study ◽  
Analysis Of Variance ◽  
Pleurotus Ostreatus ◽  
Medium Composition ◽  
Oyster Mushroom ◽  
Control Treatment ◽  
Mycelium Growth ◽  
Randomized Design ◽  
Significant Difference ◽  
Completely Randomized Design

Penambahan nutrisi perlu dilakukan untuk meningkatkan produktivitas pertumbuhan jamur tiram putih (Pleurotus ostreatus). Salah satu bahan yang dapat digunakan adalah serbuk jagung. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan serbuk jagung pada komposisi media tanam terhadap pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus) dan mengetahui konsentrasi serbuk jagung yang paling baik digunakan pada pertumbuhan  miselium bibit F1 jamur tiram putih (Pleurotus ostreatus). Penelitian ini mengunakan Rancangan Acak Lengkap (RAL) 4 perlakuan dan 3 ulangan sehingga diperoleh 12 satuan percobaan; P0 (perlakuan kontrol), P1 (25%), P2 (50%), dan P3 (100%). Variabel yang diukur adalah persentase pertumbuhan miselium yang diamati pada hari ke-6, 12 dan 18 dan waktu penyebaran miselium Hari Setelah Inokulasi (HSI). Data hasil penelitian dianalisis menggunakan analysis of variance (ANOVA) dengan uji lanjut menggunakan uji Beda Nyata Terkecil (BNT). Hasil penelitian menunjukkan bahwa ada pengaruh pada pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus) dengan penambahan serbuk jagung pada komposisi media tanam. Selain Itu, konsentrasi serbuk jagung yang memberikan hasil yang paling baik terhadap pertumbuhan miselium adalah P2 dengan konsentrasi 50%. Kata kunci : miselium F1; Pleurotus ostreatus; serbuk jagung  ABSTRACTAdditional nutrition needs to be done to increase the productivity of oyster mushroom (Pleurotus ostreatus) growth. One of the materials that can be used is corn powder. This study aimed to determine the effect of corn powder on the planting medium composition towards mycelium growth of oyster mushroom F1 seeds (Pleurotus ostreatus) and to find the best concentration of corn powder to grow mycelium seeds F1 oyster mushroom (Pleurotus ostreatus). This research was an experimental study using a Completely Randomized Design (CRD) with 4 treatments namely; P0 (control treatment), P1 (25%), P2 (50%), and P3 (100%), and 3 repetitions so that obtained 12 experimental units. The variables measured were the mycelium growth percentage on days 6, 12, and 18, and the mycelium widespread time after the day of inoculation. The data were analyzed using ANOVA then continued on the Least Significant Difference (LSD) test. The results showed that the addition of corn powder on oyster mushroom growing media affected mycelium growth of the oyster mushroom F1 seeds (Pleurotus ostreatus). It also found that the P2 with a 50% concentration of corn powder gave the widest mycelium growth.  Keywords: corn powder; mycelium; Pleurotus ostreatus

scholarly journals Teaching Vocabulary through Fly Swatter Game

2019 ◽  
Vol 2 (1) ◽  
pp. 17
Author(s):  
Hikmah Noerqori Saputra ◽  
Muhamad Sofian Hadi
Keyword(s):  
Experimental Study ◽  
Test Scores ◽  
Quantitative Method ◽  
T Test ◽  
Significant Difference ◽  
Post Test ◽  
The Subject ◽  
Academic Year ◽  
Experimental Group

The study aimed to find out whether fly swatter game can give influence toward students’ vocabulary mastery. The subject of this study was grade VII-2 of SMPN 9 Tangerang Selatan in the academic year of 2018/2019, which consisted of 42 students. The method used in this study is a quantitative method with the design of the pre-experimental study. The data from pre-test and post-test were analyzed statistically using spss 16. The result of this study showed; the students’ pre-test mean score was 45.4 and the students’ post-test mean score was 86.6. The result of t-test was 21.55 and significant (2-tailed) was 0.00 < p (0.05). The hypothesis (H1) was accepted, which means there is a significant difference between pre-test and post-test scores of the experimental group. It can be concluded that applying fly swatter game in teaching vocabulary to 7th grade students of SMPN 9 Tangerang Selatan is effective.

scholarly journals PERBANDINGAN PENGGUNAAN MULTIMEDIA SECARA TUTORIAL DAN PRESENTASI TERHADAP PENGUASAAN KONSEP DAN KETERAMPILAN PROSES SAINS PADA KONSEP SISTEM PERTAHANAN TUBUH

2012 ◽  
Vol 13 (1) ◽  
pp. 13-22
Author(s):  
Eni Nuraeni ◽  
Dadang Machmudin ◽  
Tenten Hermansyah
Keyword(s):  
Experimental Study ◽  
Communication Skills ◽  
Science Communication ◽  
Predictive Ability ◽  
Process Skills ◽  
Group Design ◽  
Multiple Group ◽  
Concept Mastery ◽  
Significant Difference ◽  
Post Test

The purpose of this study was to compare the use of multimedia in the presentation and tutorial of mastery of the concept and process skills in science concerning the immune system. The experimental study was designed with Quasy pre-test post-test, multiple nonequivalent group design. Two treatments for each tutorials and presentations class were employed. Instruments consist of basic concept mastery test, the concept and process skills, questionnaires, and interviews. The result showed that there were differences among the two classes. However, there was no significant difference students process skill in science. Communication skills measured showed no significant difference, while the predictive ability measured showed a significant difference. Tujuan penelitian ini adalah membandingkan penggunaan multimedia secara presentasi terhadap penguasaan konsep dan KPS pada konsep sistem pertahanan tubuh melalui penggunaan multimedia secara tutorial dan presentasi. Penelitian ini merupakan Quasy eksperiment dengan desain pre-test post-test, nonequivalent multiple group design. Digunakan dua kelas perlakuan masing-masing untuk kelas tutorial dan presentasi. Instrumen yang digunakan meliputi pokok uji penguasaan konsep, pokok uji KPS, angket dan wawancara. Hasi menunjukan adanya perbedaan penguasaan konsep pada kedua kelas perlakuan. Akan tetapi perlakuan yang diberikan tidak menunjukan adanya perbedaan terhadap KPS siswa. Kemampuan komunikasi yang diukur menunjukan tidak adanya, sedangkan kemampuan prediksi yang diukur menunjukan adanya perbedaan yang signifikan.  

scholarly journals Efektivitas Metode Imla’ Manzur dalam Meningkatkan Keterampilan Menulis Bahasa Arab Siswa Madrasah Tsanawiyah

2020 ◽  
Vol 1 (2) ◽  
pp. 1-22
Author(s):  
Susanti Susanti
Keyword(s):  
Experimental Study ◽  
Data Collection ◽  
Learning Outcomes ◽  
Writing Skills ◽  
T Test ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Average Value ◽  
Significant Difference

The lack of use the writing skills method raises several obstacles experienced by students, including weaknesses in understanding the basics of Arabic writing and difficulty in answering Arabic questions. Therefore, it is necessary to improve learning as an effort to improve writing skills by applying the imla’ manzur method. This research is an experimental study with a pretest-posttest control group design model, aimed at finding out the effectiveness of the imla’ manzur method. Data collection techniques in this study used observation, tests, questionnaires, interviews, and documentation. Then the validity of the data is tested using the independent sample t-test. The results obtained were that in the experimental class the mastery of Arabic writing skills of students after applying the imla’ manzur method had increased the average value from 52.08 to 78.57. Then, the results of the independent sample t-test showed a significant difference in the mastery of Arabic writing skills in the experimental class and the control class 0.000 < 0.05 after treatment, so that the conclusion of this study based on the data obtained showed that the application of the imla’ manzur method was effective in improving students Arabic writing skills. Evidenced by a significant increase in learning outcomes, student enthusiasm when taking turns to write vocabulary and sentences in Arabic on the board, as well as growing sensitivity of student analysis of Arabic writing skills.

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