The study was conducted to examine the effects of Weight Training on selected physical fitness variables of school going children after twelve weeks of the training. Forty male school going children ...within the age group of 14 to 18 years were selected and divided randomly into two groups, the Control and experimental Group, each one consisting of 20 subjects. The experimental Group underwent Weight training for twelve weeks, three times a week, and the control Group was not involved in any kind of training program except for their daily routine. Measurements of physical fitness variables included for measuring vertical jump, sargent jump was used, for measuring horizontal jump, standing broad jump was used, for measuring leg strength, wall squat test was used and for measuring back strength, Kraus weber test was used of all school going children at the beginning of and after the experimental period of twelve weeks. Significant effect was found in the experimental group at a significance level of 0.05 for vertical jump, horizontal jump, leg strength and back strength among school going children. The Weight training has been used as an effective training for enhancing physical fitness component. Weight training is a systematic muscle training technique that helps school going children in the development of their muscular strength.
This study aims to analyze the acute effect of omega 3 supplementation on serum TNF-α levels, pain intensity, and muscle strength after high-intensity weight training. A total of 20 adult males with ...a BMI of 18.00-24.99 were enrolled in this study. Subjects were divided into 2 groups, namely (K1) with placebo and (K2) with omega 3 supplementation with a dose of 1000 mg (540 mg EPA and 360 mg DHA). The intervention was carried out 24 hours after high-intensity weight training. The data in this study were taken before and after the intervention. Measurement of serum TNF-α levels using a human ELISA kit, measurement of pain intensity using visual analog scale (VAS), measuring muscle strength using a leg dynamometer. The data analysis technique is used if the data is normally distributed, namely Paired t-test and Independent t-test, if the data has not normally distributed the analysis used is the Wilcoxon signed-rank test. Omega 3 supplementation significantly reduced serum TNF-α levels (p-0.035), significantly reduced pain levels (p-0.007), and did not significantly decrease the strength (p-0.100). Omega 3 supplementations can reduce serum TNF-α levels, pain intensity, and omega 3 supplementations can maintain muscle strength after high-intensity weight training as evidenced by the absence of a significant decrease in muscle strength after high-intensity weight training.
There is currently an increase in inertial flywheel application in strength training; thus, it must be monitored by an accurate and reliable device. The present study tested: (1) the accuracy of an ...inertial measurement device (IMU) to correctly measure angular velocity and (2) its inter-unit reliability for the measurement of external load. The analysis was performed using Pearson Correlation and Intraclass Correlation Coefficient (ICC). The IMU accuracy was tested using Bland-Altman and the reliability with the coefficient of variation (CV). Ten elite-level football players performed ten series of 5 repetitions in a one-hand standing row exercise (5 series with each arm). A nearly perfect accuracy (ICC=.999) and a very good between-device reliability (Bias=-.010; CV=.017%) was found. IMU is a reliable and valid device to assess angular velocity in inertial flywheel workout objectively.
Performing continuous sets to failure is fatiguing during the plyometric training. Cluster sets have been used to redistribute total rest time to create short frequent sets so that muscle fatigue can ...be avoided. The purpose of the study was to investigate the effects of inter-set recovery time on lower extremity explosive power, neuromuscular activity, and tissue oxygenation during plyometric exercise and recovery. An integrated assessment of explosive power, muscle electrical activity, and tissue oxygenation was adopted in the present study to help understand local muscle metabolism and fatigue during plyometric exercise and recovery. Ten university male basketball players participated in this study. Subjects performed 4 groups of exercise, each group comprised of 3 sets of jumps: 1, 2, 3, or 5 min. Surface electromyography (sEMG) signals were collected from 9 lower extremity muscles; near-infrared spectroscopy (NIRS) was recorded on
; mechanical data during plyometric exercise were collected from a force plate. No significant differences among sets and among groups were found regarding explosive power, jump height, EMG intensity, mean power frequency, the rate of tissue saturation index, and HbO
changes between baseline and recovery. The current study has shown no muscular fatigue induced during the 4 groups of exercise. The results of this study may help inform recommendations concerning the recovery time during plyometric exercises at low loads (30% 1 RM).
Probiotics are increasingly being used as a nutritional supplement by athletes to improve exercise performance and reduce post-exercise fatigue.
is a natural flora in the gastrointestinal tract of ...humans and animals.
subspecies
(SA-03) is an isolate from the 2008 Olympic women's 48 kg weightlifting gold medalist's gut microbiota. In this study, we investigated its beneficial effects on physical fitness. Male ICR mice were divided into four groups (
= 10 per group) and orally administered with SA-03 for 4 weeks at 0, 2.05 × 10
, 4.10 × 10
, or 1.03 × 10
CFU/kg/day. Results showed that 4 weeks of SA-03 supplementation significantly improved muscle strength and endurance performance, increased hepatic and muscular glycogen storage, and decreased lactate, blood urea nitrogen (BUN), ammonia, and creatine kinase (CK) levels after exercise. These observations suggest that SA-03 could be used as a nutritional supplement to enhance exercise performance and reduce.
The article is a research into psychological and pedagogic support of sportsmen aged 18–25 years old, with taking into account the gender factor, at the stages of training with the strength ...exercises. It states methods of psychical reserves mobilization of different psychophysical types of sportsmen, aimed at training process efficiency increase in order to reach high results during competitions.
Introduction.
The article is based at the methodic of classical development of sportsmen’s strength abilities in powerlifting in composition with psychological methods of psychological and pedagogic support (PPS) for increasing of reliability and successfulness of pre-competition training. PPS is considered to be a combination of targets, media, methods and circumstances of planning, realization and control of the process of formation, activation and optimization of sportsmen’s psychological processes, at the stages of preparing for competitions and participating in them. Research target. Theoretical elaboration and experimental substantiation of the methodic of PPS training preparation for the competitions when going in for powerlifting and weightlifting.
Materials and methods.
The method of control test, pedagogic experiment (PE), fitness tests, anthropometrical methods, psychological development of personality methods, mathematical statistics methods. The research was being performed during five weeks (2020-02-01–2020-03-15). During the pedagogical experiment (PE), strength trainings were based at five-week cycle by B.I. Sheyko, which is equal to one pre-competition mesocycle. Sportsmen aged 18–25 years old formed two groups of 20 persons each: control group (CG) and experimental group (EG), divided inside by the gender factor. CG and EG were training with the classical powerlifting methodic, in EG it was supplemented with psychological processes optimization methods.The methodic of PPS preparation for a competition included: learning of goal-setting, forming of readiness for competitions, learning of coping, activation of motivation processes, increase of self-control and of psychoregulation of behavior and sport activity.
Results.
The authors elaborated five-week mesocycle (medium cycle) of training for powerlifters aged 18-25 years old. The forming impact of the complex of PPS methods in EG caused certain growth of strength results in EG at the end of PE: each of CG sportswomen lifted 142.5 kg in the sum of three-lift, CG sportsmen — 215 kg. In EG the result of sportswomen is 190 kg, the result of sportsmen is 250 kg. The growth, when comparing EG and CG, was 57.5 kg for sportswomen and 35 kg for sportsmen in favour of RG with PPS. Psychophysical types of young powerlifters, who need psychological and pedagogic support, were identified, recovery measures for psychological preparation were proposed.
Conclusion.
PPS in the complex with strength trainings caused certain growth of strength indexes of powerlifters aged 18–25 years old, with taking into account the gender factor. Strength indexes of girls progressed 1,8–2 times more significantly, than of men. When performing PPS, they wust take into account the gender specifics of powerlifters, attached to different impact of psychological preparation methods on boys and girls.
Cycling is a popular sport, and the cycling population and prevalence of related injuries and diseases increase simultaneously. Iliotibial band friction syndrome is a common chronic overuse injury ...caused by repetitive knee use in cycling. Self-myofascial release using foam rollers is an effective intervention for this syndrome; however, studies reporting positive results on self-myofascial release in cycling are limited. Therefore, this study investigated the effect of self-myofascial release on pain and iliotibial band flexibility, heart rate, and exercise performance (cadence, power, and record) in adult male cyclists with iliotibial band friction syndrome. We evaluated the pain and exercise ability of the control (
= 11) and self-myofascial release (
= 11) groups before and after cycling twice. Significant differences were observed in the pain scale, the iliotibial band flexibility, and cycling pain and power. The posterior cadence of the self-myofascial release group was 3.2% higher than that of the control group. The control group's record time increased by 74.64 s in the second cycling session compared to the first cycling session, while that of the self-myofascial release group decreased by 30.91 s in the second cycling session compared to the first cycling session. Self-myofascial release is effective in relieving pain and may improve cycling performance by increasing the iliotibial band flexibility.
The type of clothing worn, revealing versus concealing, can affect the performance of women on cognitive tasks. This difference in performance may arise because of changes in body awareness that may ...draw cognitive resources from the goal task. The present study investigated the influence of the style of athletic clothing and body awareness on visual-motor performance in women. Participants (women ages 18–35 years) were randomly assigned to wear tight and revealing (TR group,
n
= 40) or loose and concealing (LC group,
n
= 40) athletic clothing. All participants completed the same visual-motor aiming task to assess spatiotemporal measures of motor performance. In addition to the clothing, participants were primed to be conscious of their bodies via measurements of height, weight, and waist circumference; photographs taken of their bodies; a computerized body-size distortion task; and a mirror in the testing chamber. Results revealed that the TR group had increased movement time variability and did not show performance improvements relative to the LC group. These differences suggest that style of clothing may influence motor performance in women by reallocating cognitive resources towards the body and away from the motor task at hand. This research highlights the interactions between cognitive and motor processes and, potentially, the importance of considering the impact of clothing on performance in many different contexts.
During rainy times, the impact of outdoor vision systems gets considerably decreased owing to the visibility barrier, distortion, and blurring instigated by raindrops. So, it is essential to ...eradicate it from the rainy images for ensuring the reliability of outdoor vision system. To achieve this, several rain removal studies have been performed in recent days. In this view, this paper presents a new Faster Region Convolutional Neural Network (Faster RCNN) with Optimal Densely Connected Networks (DenseNet)-based rain removal technique called FRCNN-ODN. The presented involves weighted mean filtering (WMF) is applied as a denoising technique, which helps to boost the quality of the input image. In addition, Faster RCNN technique is used for rain detection that comprises region proposal network (RPN) and Fast RCNN model. The RPN generates high quality region proposals that are exploited by the Faster RCNN to detect rain drops. Also, the DenseNet model is utilized as a baseline network to generate the feature map. Moreover, sparrow search optimization algorithm (SSOA) is applied to choose the hyperparameters of the DenseNet model namely learning rate, batch size, momentum, and weight decay. An extensive experimental validation process is performed to highlight the effectual outcome of the FRCNN-ODN model and investigated the results with respect to several dimensions. The FRCNN-ODN method produced a higher UIQI of 0.981 for the applied image 1. Furthermore, on the applied image 2, the FRCNN-ODN model achieved a maximum UIQI of 0.982. Furthermore, the FRCNN-ODN algorithm produced a higher UIQI of 0.998 on the applied image 3. The simulation outcome showcased the superior outcome of the FRCNN-ODN (Optimal Densely Connected Networks) model with existing methods in terms of distinct measures.
In this study, a novel Multivariable Adaptive Neural Network Controller (MANNC) is developed for coupled model-free n-input n-output systems. The learning algorithm of the proposed controller does ...not rely on the model of a system and uses only the history of the system inputs and outputs. The system is considered as a 'black box' with no pre-knowledge of its internal structure. By online monitoring and possessing the system inputs and outputs, the parameters of the controller are adjusted. Using the accumulated gradient of the system error along with the Lyapunov stability analysis, the weights' adjustment convergence of the controller can be observed, and an optimal training number of the controller can be selected. The Lyapunov stability of the system is checked during the entire weight training process to enable the controller to handle any possible nonlinearities of the system. The effectiveness of the MANNC in controlling nonlinear square multiple-input multiple-output (MIMO) systems is demonstrated via three simulation studies covering the cases of a time-invariant nonlinear MIMO system, a time-variant nonlinear MIMO system, and a hybrid MIMO system, respectively. In each case, the performance of the MANNC is compared with that of a properly selected existing counterpart. Simulation results demonstrate that the proposed MANNC is capable of controlling various types of square MIMO systems with much improved performance over its existing counterpart. The unique properties of the MANNC will make it a suitable candidate for many industrial applications.
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