ESTIMATING THE MENTAL AND PHYSICAL PERFORMANCE OF BORDER POLICE EMPLOYEES UNDER THE INFLUENCE OF SOME TECHNOLOGIES FOR RESTORATION AND RECREATION OF THE ORGANISM

2017 ◽  
Author(s):  
Natalia Dontsova ◽  
Keyword(s):  
Physical Performance ◽  
Physical Training ◽  
Visual Information ◽  
Control Group ◽  
Visual Analyzer ◽  
Speed Of Processing ◽  
Mental Performance ◽  
Intellectual Work ◽  
General Resistance ◽  
The Stability

In the pedagogical experiment we established that the use of technologies for the restoration and recreation of the organism, proposed by us, provides an improvement in the indicators of the mental performance of border police employees, expressed in an increase in the productivity of intellectual work and the effectiveness of their visual analyzer, accompanied by the speed of processing visual information and the stability of attention. We found that these technologies improved the physical training of border police employees, which manifested itself in improved speed, general resistance of the organism and of the force capacities, in relation to the control group.

scholarly journals The effect of 6-week core stability training on core endurance and physical performance in professional rugby players: A randomized controlled pilot study

2021 ◽  
Vol 12 (11) ◽  
pp. 60-65
Author(s):  
Chamila S. Senavirathna ◽  
Anuja P. Mallawaarachchi ◽  
Aranjan L. Karunanayake ◽  
Sampath Gunawardena
Keyword(s):  
Physical Performance ◽  
Physical Training ◽  
Vertical Jump ◽  
Intervention Group ◽  
Core Stability ◽  
Upper Body ◽  
Control Group ◽  
Physical Performances ◽  
Stability Training ◽  
Rugby Players

Background: Core stability training (CST) is used to enhance sports performance. The relationship between core endurance and physical performance in rugby players had not been evaluated before in Asia. Aims and Objectives: This study aims to determine the effects of a 6-week specific CST program on the core endurance and physical performances (speed, upper body power, lower body power, and agility) following a CST intervention in male rugby players. Materials and Methods: Professional rugby players (n=8, intervention and n=8, control) were randomly selected. Mean (SD) age, height and weight of intervention group were 25.25 (2.4) years, 1.64 (0.03) m, and 69.6 (14.9) kg, respectively. In the control group, corresponding values were 29.75 (4) years, 1.66 (0.04) m, and 72.3 (19.1) kg, respectively. Intervention group was trained CST sessions complementary to the usual physical training, 3 times/week for 6 weeks. The control group followed the usual physical training. Subjects were tested for four physical performances (using 40 m sprint, vertical jump, 3 kg medicine ball put, and agility T tests) and four core endurance tests (back extension, abdominal fatigue [AF], and left and right bridges). Results: AF, left bridge, right bridge, and total core endurance were significantly increased in the intervention group (P=0.028, P=0.006, P= 0.008, and P=0.001, respectively). Agility and AF were increased significantly in the control group (P=0.048, P=0.027). The right side bridge endurance (P=0.024) was significantly increased in the intervention group compared to the control group. Conclusion: The results suggest that the CST improves core endurance without improving physical performances in rugby players.

scholarly journals Effects of eight weeks of physical training on physical performance and heart rate variability in children

2017 ◽  
Vol 9 (1) ◽  
pp. 175-180
Author(s):  
Liisa Kraama ◽  
Pablo Yague ◽  
Heikki Kyröläinen ◽  
Seppo Pulkkinen ◽  
Tuuli Matinsalo ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Endurance Training ◽  
Physical Performance ◽  
Physical Training ◽  
High Frequency ◽  
Test Group ◽  
Control Group ◽  
Before And After ◽  
Active Adults

Summary Study aim: Physically active adults have been shown to have higher heart rate variability (HRV) than less active adults, but less is known about children in this regard. In adults, training-induced changes in physical performance have been shown to be related to increase in HRV, especially in its high frequency component (HF), which is a marker of parasympathetic activity. The purpose of this study was to examine whether 8 weeks of instructed physical training would improve physical performance and cardiac autonomic function (HRV) in secondary school pupils and to examine the relationship between changes in physical performance and the function of the autonomic nervous system. Material and methods: The test group included 12 girls and 12 boys and the control group 7 girls and 7 boys. All the sub­jects were 13-15 years old. Physical training included warm up, circuit training, endurance training, stretching and relaxation 3 times a week for eight weeks. Endurance training intensity was 70-75% of maximal heart rate. Endurance, flexibility, speed and power were measured before and after training. The low frequency (LF) and high frequency (HF) components of HRV were recorded in supine rest and in standing conditions before and after the eight-week period. Results: Time to exhaustion in the endurance test increased in the test group (p < 0.001), flexibility and ball throwing improved in the test group (p < 0.05), while no changes were observed in the control group. No significant changes were observed in HRV in either group. Conclusions: In conclusion, eight weeks of physical training improves physical performance in children, but it might not affect autonomic cardiac function.

Application of phytocomplex and nordic walking in dyslipidemia

2021 ◽  
pp. 48-54
Author(s):  
Lira Talgatovna Gilmutdinova ◽  
Rushaniya Ravilievna Kudayarova ◽  
Aleksander Mikhailovich Ivanov ◽  
Ruslan Ralifovich Garaev ◽  
Bulat Rashitovich Gilmutdinov ◽  
...  
Keyword(s):  
Cardiovascular System ◽  
Physical Performance ◽  
Physical Training ◽  
Main Group ◽  
Control Group ◽  
Nordic Walking ◽  
Lipid Fractions ◽  
Atherogenic Lipid

The results of assessing the effectiveness of using the original phytocomplex in combination with physical training in the form of Nordic walking in 78 men with dyslipidemia are presented. It was found that in the main group (n=39), against the background of the use of phytocomplex and physical training, there is a decrease in the content of atherogenic lipid fractions and the atherogenic coefficient, an increase in physical performance, and an improvement in the indicators of the adaptive reserve of the cardiovascular system. In the control group (n=39), against the background of a hypolipidemic diet and climatotherapy, less significant dynamics of the parameters is noted.

Reverse torque values of abutment screws after dynamic loading: The effects of sealant agents and the taper of conical connections

2020 ◽  
Author(s):  
Arda Ozdiler ◽  
suleyman dayan ◽  
Burc Gencel ◽  
Gulbahar Isık-Ozkol
Keyword(s):  
Dynamic Loading ◽  
Antibacterial Agent ◽  
In Vitro Study ◽  
Control Group ◽  
Silicone Sealant ◽  
Reverse Torque ◽  
The Stability ◽  
Torque Values ◽  
Chlorhexidine Gel

This in vitro study evaluated the influence of taper angles on the internal conical connections of implant systems and of the application of chlorhexidine gel as an antibacterial agent or a polyvinyl siloxane (PVS) sealant on the reverse torque values of abutment screws after dynamic loading. The current study tested four implant systems with different taper angles (5.4°, 12°, 45°, and 60°). Specimens were divided into three groups: control (neither chlorhexidine gel filled nor silicone sealed), 2% chlorhexidine gel-filled or silicone-sealed group, and group subjected to a dynamic load of 50 N at 1 Hz for 500,000 cycles prior to reverse torque measurements. Quantitative positive correlation was observed between the taper angle degree and the percentage of tightening torque loss. However, this correlation was significant only for the 60° connection groups except in the group in which a sealant was applied ( p = 0.013 for the control group, p = 0.007 for the chlorhexidine group). Percentages of decrease in the torque values of the specimens with silicone sealant application were significantly higher compared with both the control and chlorhexidine groups ( p = 0.001, p = 0.002, p = 0.001, and p = 0.002, respectively, according to the increasing taper angles); the percentage of decrease in torque values due to chlorhexidine application was statistically insignificant when compared with the control group. The application of gel-form chlorhexidine as an antibacterial agent does not significantly affect the stability of the implant–abutment connection under dynamic loads. PVS sealants may cause screw loosening under functional loads.

TEACHING MULTI-ROTATION JUMPS TO FEMALE SKATERS AGED 10–11 WITH THE USE OF «ROTATOR» VESTIBULAR SIMULATOR

2020 ◽  
Vol 8 (1) ◽  
pp. 30-37
Author(s):  
Ivan Martynenko ◽  
Ekaterina Borisenkova ◽  
Yana Suslenko
Keyword(s):  
Physical Training ◽  
Female Athletes ◽  
Statistical Processing ◽  
Control Group ◽  
Administrative District ◽  
Sport Training ◽  
The North ◽  
Training Methodology ◽  
General Physical ◽  
Training Exercises

Currently, Russian skaters are delivering incredible performances worldwide. In this regard, diverse social groups show increasing interest in this sport. Thus, professionals pay much attention to the coaching for win-win outcomes. It is especially important for single female skaters at the competitions where few hundredths of a point determine results of several participants from Russia, and at the same time dozens of points separate them and skaters from other countries on the podium. The aim of the research is to test the techniques of teaching multi-rotation jumps to female skaters aged 10-11. These techniques are part of training methodology, and they consider harmony, interconnection and versatility of sport training in general. These techniques include special exercises with the use of “Rotator” simulator. Materials and methods of the research. In our research, we used the review and analysis of scientific and methodological literature, pedagogical observations, pedagogical testing; pedagogical experiment, mathematical and statistical processing of the results. The experiment covered two groups of female athletes born in 2007-2008, with 8 people in each group. All the participants came from the «Zvezda» Center of Physical Culture and Sports of the North-Western administrative district of Moscow. Research results and discussion. Participants of the experimental group were performing the developed sets of exercises on general physical training, special physical training (including “Rotator” vestibular simulator) and training on skating rink during six months. The research revealed a significant increase in the technical and physical fitness of the participants of this subgroup. Conclusion. The developed set of “Rotator” simulator exercises, as well as complexes of auxiliary and special training exercises with increasing coordination complexity are effective in teaching multi-rotation jumps to female skaters aged 10-11 compared with the standard exercises performed in the control group.

scholarly journals Stability and ocular biodistribution of topically administered PLGA nanoparticles

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sean Swetledge ◽  
Renee Carter ◽  
Rhett Stout ◽  
Carlos E. Astete ◽  
Jangwook P. Jung ◽  
...  
Keyword(s):  
Uv Light ◽  
Light Exposure ◽  
Polymeric Nanoparticles ◽  
Plga Nanoparticles ◽  
Eye Disease ◽  
Control Group ◽  
Eye Tissues ◽  
Nanoparticle Morphology ◽  
The Stability

AbstractPolymeric nanoparticles have been investigated as potential delivery systems for therapeutic compounds to address many ailments including eye disease. The stability and spatiotemporal distribution of polymeric nanoparticles in the eye are important regarding the practical applicability and efficacy of the delivery system in treating eye disease. We selected poly(lactic-co-glycolic acid) (PLGA) nanoparticles loaded with lutein, a carotenoid antioxidant associated with eye health, as our model ophthalmic nanodelivery system and evaluated its stability when suspended in various conditions involving temperature and light exposure. We also assessed the ocular biodistribution of the fluorescently labeled nanoparticle vehicle when administered topically. Lutein-loaded nanoparticles were stable in suspension when stored at 4 °C with only 26% lutein release and no significant lutein decay or changes in nanoparticle morphology. When stored at 25 °C and 37 °C, these NPs showed signs of bulk degradation, had significant lutein decay compared to 4 °C, and released over 40% lutein after 5 weeks in suspension. Lutein-loaded nanoparticles were also more resistant to photodegradation compared to free lutein when exposed to ultraviolet (UV) light, decaying approximately 5 times slower. When applied topically in vivo, Cy5-labled nanoparticles showed high uptake in exterior eye tissues including the cornea, episcleral tissue, and sclera. The choroid was the only inner eye tissue that was significantly higher than the control group. Decreased fluorescence in all exterior eye tissues and the choroid at 1 h compared to 30 min indicated rapid elimination of nanoparticles from the eye.

scholarly journals The Bone Buttress Theory: The Effect of the Mechanical Loading of Bone on the Osseointegration of Dental Implants

Biology ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 12
Author(s):  
David Chavarri-Prado ◽  
Aritza Brizuela-Velasco ◽  
Ángel Álvarez-Arenal ◽  
Markel Dieguez-Pereira ◽  
Esteban Pérez-Pevida ◽  
...  
Keyword(s):  
Dental Implants ◽  
Mechanical Loading ◽  
Bone Growth ◽  
Bone Matrix ◽  
Test Group ◽  
Control Group ◽  
Group A ◽  
Bone To Implant Contact ◽  
The Stability ◽  
Group B

Objectives: To determine the effect of mechanical loading of bone on the stability and histomorphometric variables of the osseointegration of dental implants using an experimental test in an animal model. Materials and Methods: A total of 4 human implants were placed in both tibiae of 10 New Zealand rabbits (n = 40). A 6-week osseointegration was considered, and the rabbits were randomly assigned to two groups: Group A (Test group) included 5 rabbits that ran on a treadmill for 20 min daily during the osseointegration period; Group B (Controls) included the other 5 that were housed conventionally. The monitored variables were related to the primary and secondary stability of the dental implants (implant stability quotient—ISQ), vertical bone growth, bone to implant contact (BIC), area of regenerated bone and the percentage of immature matrix. Results: The results of the study show a greater vertical bone growth (Group A 1.26 ± 0.48 mm, Group B 0.32 ± 0.47 mm, p < 0.001), higher ISQ values (Group A 11.25 ± 6.10 ISQ, 15.73%; Group B 5.80 ± 5.97 ISQ, 7.99%, p = 0.006) and a higher BIC (Group A 19.37%, Group B 23.60%, p = 0.0058) for implants in the test group, with statistically significant differences. A higher percentage of immature bone matrix was observed for implants in the control group (20.68 ± 9.53) than those in the test group (15.38 ± 8.84) (p = 0.108). A larger area of regenerated bone was also observed for the test implants (Group A 280.50 ± 125.40 mm2, Group B 228.00 ± 141.40 mm2), but it was not statistically significant (p = 0.121). Conclusions: The mechanical loading of bone improves the stability and the histomorphometric variables of the osseointegration of dental implants.

scholarly journals The effect of a multicomponent exercise protocol (VIVIFRAIL©) on inflammatory profile and physical performance of older adults with different frailty status: study protocol for a randomized controlled trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Marina Petrella ◽  
Ivan Aprahamian ◽  
Ronei Luciano Mamoni ◽  
Carla Fernanda de Vasconcellos Romanini ◽  
Natália Almeida Lima ◽  
...  
Keyword(s):  
Older Adults ◽  
Physical Performance ◽  
Inflammatory Mediators ◽  
Gait Speed ◽  
Exercise Intervention ◽  
Intervention Group ◽  
Control Group ◽  
Frailty Status ◽  
Anti Inflammatory ◽  
Inflammatory Profile

Abstract Background To investigate whether an exercise intervention using the VIVIFRAIL© protocol has benefits for inflammatory and functional parameters in different frailty status. Methods/design This is a randomized clinical trial in an outpatient geriatrics clinic including older adults ≥60 years. For each frailty state (frail, pre-frail and robust), forty-four volunteers will be randomly allocated to the control group (n = 22) and the intervention group (n = 22) for 12 weeks. In the control group, participants will have meetings of health education while those in the intervention group will be part of a multicomponent exercise program (VIVIFRAIL©) performed five times a week (two times supervised and 3 times of home-based exercises). The primary outcome is a change in the inflammatory profile (a reduction in inflammatory interleukins [IL-6, TNF- α, IL1beta, IL-17, IL-22, CXCL-8, and IL-27] or an increase in anti-inflammatory mediators [IL-10, IL1RA, IL-4]). Secondary outcomes are change in physical performance using the Short Physical Performance Battery, handgrip strength, fatigue, gait speed, dual-task gait speed, depressive symptoms, FRAIL-BR and SARC-F scores, and quality of life at the 12-week period of intervention and after 3 months of follow-up. Discussion We expect a reduction in inflammatory interleukins or an increase in anti-inflammatory mediators in those who performed the VIVIFRAIL© protocol. The results of the study will imply in a better knowledge about the effect of a low-cost intervention that could be easily replicated in outpatient care for the prevention and treatment of frailty, especially regarding the inflammatory and anti-inflammatory pathways involved in its pathophysiology. Trial registration Brazilian Registry of Clinical Trials (RBR-9n5jbw; 01/24/2020). Registred January 2020. http://www.ensaiosclinicos.gov.br/rg/RBR-9n5jbw/.

scholarly journals Reliability and Responsiveness of Two Physical Performance Measures Examined in the Context of a Functional Training Intervention

2000 ◽  
Vol 80 (1) ◽  
pp. 8-16 ◽  
Author(s):  
Mary B King ◽  
James O Judge ◽  
Robert Whipple ◽  
Leslie Wolfson
Keyword(s):  
Physical Performance ◽  
Interrater Reliability ◽  
Intraclass Correlation ◽  
Intervention Group ◽  
Training Intervention ◽  
Control Group ◽  
Walk Test ◽  
Test Retest Reliability ◽  
6 Minute Walk Test ◽  
Minute Walk

Abstract Background and Purpose. The reliability and responsiveness of 2 physical performance measures were assessed in this nonrandomized, controlled pilot exercise intervention. Subjects. Forty-five older individuals with mobility impairment (mean age=77.9 years, SD=5.9, range=70–92) were sequentially assigned to participate in an exercise program (intervention group) or to a control group. Methods. The intervention group performed exercise 3 times a week for 12 weeks that targeted muscle force, endurance, balance, and flexibility. Outcome measures were the 8-item Physical Performance Test (PPT-8) and the 6-minute walk test. Test-retest reliability and responsiveness indexes were determined for both tests; interrater reliability was measured for the PPT-8. Results. The intraclass correlation coefficient for interrater reliability for the PPT-8 was .96. Intraclass correlation coefficients for test-retest reliability were .88 for the PPT-8 and .93 for the 6-minute walk test. The intervention group improved 2.4 points and the control group improved 0.7 point on the PPT-8, as compared with baseline measurements. There was no change in 6-minute walk test distance in the intervention group when compared with the control group. The responsiveness index was .8 for the PPT-8 and .6 for the 6-minute walk test. Conclusion and Discussion. Measurements for both the PPT-8 and the 6-minute walk test appeared to be highly reliable. The PPT-8 was more responsive than the 6-minute walk test to change in performance expected with this functional training intervention.

scholarly journals EFFECTS OF PHYSICAL TRAINING ON THE MYOCARDIUM OF FEMALE LDL KNOCKOUT OVARIECTOMIZED MICE

2017 ◽  
Vol 23 (6) ◽  
pp. 441-445
Author(s):  
Ledimar Brianezi ◽  
Mara Rubia Marques ◽  
Clever Gomes Cardoso ◽  
Maria Luiza de Jesus Miranda ◽  
Fernando Luiz Affonso Fonseca ◽  
...  
Keyword(s):  
Physical Training ◽  
Volume Density ◽  
Collagen Fibers ◽  
Nuclear Volume ◽  
Control Group ◽  
Cross Sectional ◽  
Training Time ◽  
Aerobic Activity ◽  
Ovariectomized Mice ◽  
The Mean

ABSTRACT Introduction: The emergence of coronary heart disease increases with menopause, physical inactivity and with dyslipidemia. It is known that physical training promotes the improvement of cardiovascular functions. Objective: The purpose of this study was to investigate the effects of aerobic physical training on the left ventricle in female LDL knockout ovariectomized mice. Methods: Thirty animals were divided into 6 groups (n=5), namely, sedentary non-ovariectomized control; sedentary ovariectomized control; trained ovariectomized control; sedentary non-ovariectomized; sedentary ovariectomized; and trained ovariectomized. We analyzed the mean nuclear volume parameters, the cross sectional area of the myocytes, the apparent density of the capillaries, interstitium, myocytes and collagen fibers. Results: The results show that for the density of the number of nuclei, the physical activity decreased to values close to the ovariectomized control group. Regarding the mean nuclear volume and the average area of myocytes, training and ovariectomy promoted the elevation of these values but hypercholesterolemia was lower. the volume density of myocytes, hypercholesterolemia showed an increase of these values as well as the training. There was no change in the volumetric density of the capillaries and the density of collagen fibers. The training caused the decrease in the density of the interstitial volume, and the hypercholesterolemia changed to a smaller one than the control group. Conclusion: We concluded that the moderate aerobic activity or the training time used in our study were not sufficient to generate significant alterations in the hypercholesterolemic group.

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