جستجوی مقالات مرتبط با کلیدواژه « balance » در نشریات گروه « تربیت بدنی »

Core stability training plays an important role in performance of youth volleyball players and is defined as a critical factor regarding prevention of the physical abilities and important characteristics of the volleyball players such as balance and jump performance. In this research, the effect of a Progressive Core Stability Program regarding Health Protection on maintenance of Balance and Jump Performance of Junior Volleyball Players during Coronavirus Pandemic has been investigated. After the second quarantine period in Iran, two jump tests (Serjent jump test and Three-step jump test) and static balance test (Romberg) were taken from each player. The players then performed a 12-week core stability training program in compliance with health protocols. Following that, post-test evaluation was recorded. There is a significant difference in all research variables (Sarjent jump test, Three-step jump test and Romberg equilibrium test) between pretest and post-test in junior volleyball players after 12 weeks of progressive core stability training with health protocols. Coaches, specialists in sports sciences and trainers can use progressive core stability exercises to maintain vital functions in volleyball players and emphasize their performance during quarantine.

The aim of this study was to investigate the effect of neuromuscular training on balance, motor function, and knee and ankle proprioception in female taekwondo athletes aged 15 to 18 years.

In this study, 30 taekwondo athletes aged 15 to 18 were selected and randomly divided into two groups: control and experimental. To assess the training program's efficacy, tests related to static and dynamic balance were conducted using the stork and wow tests, while functional movements were evaluated with the screening test (FMS).

The results of this study demonstrated a significant improvement in static balance following the implementation of the exercise program (p < 0.05).

In summary, the findings of this study indicate the efficacy of neuromuscular exercises in enhancing both static and dynamic balance, motor function, knee and ankle proprioception in female taekwondo athletes. Consequently, the adoption of this training program is recommended for coaches and athletes in this sport to mitigate injury risk and enhance sports performance.

The purpose of the present study was to investigate the effect of a period of walking training with Auditory Sensory feedback on static and dynamic balance in the elderly. The statistical sample of this study included 36 healthy elderly men, which were selected by purposive sampling method and who were randomly divided into three groups (experimental with external sensory feedback, walking control group without sensory feedback and control group without training). For the measurement of static and dynamic balance were used in the pre and post test of fixed static equilibrium test and functional stability threshold test and for evaluations co-contraction muscle and its effect on balance, the pattern of electrical activity of the muscles of the lower extremities (horseshoe, anterior tibia, internal extensor, external extensor and biceps) was examined using electromyography. The experimental group practiced for 6 weeks, 3 sessions per week and 20 minutes of walking practice with auditory sensory feedback and walking control group followed simple gait training at the same time. Data analysis was performed using ANCOVA and nonparametric Bootstrap models at the significance level of 0.05. The results showed training with the external sensory feedback not statistically significant, despite improvement in muscle contraction and balance performance of the experimental group (P

Today, training on various training surfaces is one of the most important concerns of coaches for improving sports performance, which has rarely been considered in sport teams. The purpose of this study was to investigate the effect of six-week of specific volleyball training on ground surfaces (concrete, floor and sand) on some selected factors of physical fitness in volleyball male players.

Thirty-six male volleyball players (average age, 16.11±0.82 years) were purposefully selected and randomly divided into three training groups including training on concrete, floor, and sand surfaces. The repeated effort performance test (jump and real-time, time and ideal jump) with four repetitions and rest between repetitions at players’ movement speed between 4 to 8 seconds was used. All tests were performed before and after the training programs. One-way analysis of variance and Tukey’s tests were used at the significance level of p≤0.05.

Anaerobic power, explosive power (Jumping record) and time reduction in the repeated performance test significantly increased in the both sand and flooring groups compared to the concrete group. Moreover, agility and dynamic balance in the sand and flooring group had a significant decrease and increase, respectively, as compared to the concrete group. Additionally, dynamic balance showed more increased in the sand group than in the floor group.

Specific volleyball exercises on sand compared to other surfaces by increasing training overload caused neuro-muscular adaptations and finally improved sports performance and physical fitness of volleyball players. Accordingly, coaches can use sand surfaces to maximize the benefits of training and prevent injury and pain to players.

Falling is one of the serious issues of old age that occurs due to many factors. This research aimed to compare static and dynamic balance, walking speed, spinal curvature, and central stability of elderly people with and without a history of falling.

The current research was a causal-comparative research. 60 elderly women aged between 60 and 70 from Tabriz voluntarily participated in the research. The participants were assigned into two groups with and without a history of falling. The fall history of the participants was measured by the Fall Efficacy Scale. The static and dynamic balance were evaluated by Sharpened-Romberg and Timed Up and Go tests, respectively. Walking speed was measured with a 10-meter walk test, core stability was measured with McGill endurance tests, and spinal curvature was measured with a flexible ruler. Independent t-test was used to compare the mean variables in two groups.

The results showed a significant difference between the static and dynamic balance indices, lumbar spine curvature, walking speed, and core stability in the elderly with and without a history of falling. However, there was no significant difference between the curvature index of the lumbar spine in the elderly with and without a history of falling.

According to the research results, it seems necessary to develop and improve the indices of balance, walking speed, and core stability in people with a history of falling.

Menopause is the beginning of a new era in a woman's life. This period, like all other stages of life, has positive and negative aspects. The present study aimed to investigate the effectiveness of Pilates exercises on serum BDNF level, balance, and quality of life in menopausal and non-menopausal women.

The current study was a quasi-experimental research with a pre-test and post-test design that included two experimental and two control groups. The sample consisted of 60 menopausal and non-menopausal women (age 45.77±1.77 years) who were voluntarily selected and randomly assigned into four groups of 15 people. Fasting blood was drawn from all the participants 48 hours before the start of training and after the end of the training period. Then both experimental groups performed Pilates exercises for 12 weeks, three sessions per week and each session lasted 60 minutes. Also, the participants similarly performed the Y dynamic balance test and completed the World Health Organization Quality of Life (WHOQOL) questionnaire in pre-test and post-test.

The results of Mixed ANOVA showed a significant difference between the pre-test and the post-test of menopausal and non-menopausal women in relevant variables, so it can be said that probably 91%, 76%, and 94% of the changes in serum BDNF levels, balance and quality of life of menopausal and non-menopausal women are influenced by Pilates exercises. However, no significant effect was observed in the relevant variables of control groups (P≤0.05).

Pilates exercises can be an effective strategy to improve serum BDNF levels, balance, and quality of life in menopausal and non-menopausal women.

The purpose of the study was to development and validation of a Perceived Balance Scale for older adults. Two samples each consist of 300 subjects participated in the research. Data collected with Activities-specific Balance Confidence (ABC), Fall Self-Efficacy-International (FSE-I) form. The data were analyzed with exploratory factor analysis (EFA) and principal components with varimax rotation, confirmatory factor analysis (CFA) with structural equations modeling, Pearson correlation coefficient, and t-student test, and with SPSS-16 and LESREL softwares. Exploratory factor analysis resulted in extraction two factors “Simple Tasks” and “Hard Tasks”, explaining 76.92% and 5.66% of variances, respectively. Results of first rank of CFA indicated that measurement model of Perceived Balance Scale for Older Adults was relatively fit and all measures and parameters were significant. CFI, IFI, and TLI measures were above 0.95, indicating these measures were excellent. There were significant correlations between Perceived Balance Scale for Older Adults and ABC (r=0.91, P≤0.0001) and FES-I (r= -0.83, P≤0.0001), confirming convergent validity of the new scale. Results of t-student test indicated that perceived balance mean score of subjects without fall history in past year than with fall history counterparts was higher significantly. Interclass correlation coefficient confirmed test-retest reliability (P≤0.01). Internal consistency for total score with Cronbach,s Alpha was 0.88. These results confirm validity and reliability of “Perceived Balance Scale for Older Adults”.

Children with spastic cerebral palsy have many problems in terms of movement and balance. The crooked structure of children with spastic cerebral palsy disturbs their balance function. Due to the constant muscle tension in these people, a permanent spasm is seen in their flexor muscles. Together with other features of the disease, this leads to limited mobility for those affected. Recently, training in water and on land have become very popular in both sports and rehabilitation, especially for people with limited mobility. The aim of this study was to investigate the effects of a functional training protocol combining water and land exercises on the balance and proprioception of the lower limbs of children with cerebral palsy and diplegia.

Thirty children with diplegia cerebral palsy were selected through available sampling and randomly divided into two equal groups of experimental (age, 9.33±1.63 years; height, 1.32±0.06 m; weight, 33.88±3.63 kg) and control group (age, 9.46±1.30 years; height, 1.30±0.05 m; weight, 32.04±3.52 kg). Subjects in the experimental group performed a training protocol on the ground including strength exercises, balance exercises and functional exercises and training protocol in water for 8 weeks and 4 sessions per week.  Before and after the training period static balance was evaluated by using the functional reaching test, the dynamic balance by using the time up and go test (TUG), and joint proprioceptive by measuring the angle of dorsiflexion. To statistically analyze the data, two-way repeated measures of ANOVA was used at a significant level of p≤0.05.

After 8 weeks of land and water combined training, there were significant improvements in the functional balance test (p<0.05) and ankle joint proprioception (p=0.001), as well as a significant reduction in time of TUG test(p=0.001). No significant within-group differences were observed in any of the variables in the control group (p˃ 0.05).

The results of the present study showed that performing combined strength, aquatic, functional and balance exercises improve balance, joint proprioception, movement and walking performance in children. In addition, combined water and land exercises can improve the balance and proprioception of children with cerebral palsy and diplegia, and as a result the movement problems and falls of these children could be reduced, which is important for improving the health and lifestyle of these children. Therefore, prescribing this exercise training modality is recommended to trainers and therapists.

falling and losing balance is one the most Important problem in elderly. Exercise interventions are one the best approach to resolve this problem. Task constraints manipulation is one this approach seems it can improve balance indexes in elderly population. So the aim of current study is to investigate effect of task constraints manipulation on balance indexes of healthy elderly adults Thirty elderly people were selected to participate in the research, and they were randomly divided into control and intervention groups. The intervention group participated in task constraints manipulation exercises for 8 weeks (3 times per week), while the control group lived without any interventions. The balance indexes were evaluated using the Biodex system. The results showed task constraints manipulation exercises improve the balance indexes in intervention group. The result of ANCOVA test revealed a significant improvement in the scores of postural control and balance (P<0.05). The results of this research confirm the effect of task constraints manipulation exercises on improving balance indexes in the elderly. Balance improvement finally can lead to reduce the fall risk in elder population.

Objective :

This study sought to compare the impact of core stability and trampoline training on the static and dynamic balance, along with proprioception, among female volleyball players dealing with chronic ankle instability.

Methods :

TThirty-six female volleyball players experiencing chronic ankle instability were purposefully chosen and randomly split into three groups: core stability training, trampoline training, and a control group. Static and dynamic balance were assessed using the stork and Y balance tests, while proprioception was evaluated utilizing a goniometer. Following the pre-test evaluations, the core stability and trampoline training groups underwent a 6-week exercise regimen. Post this training period, further evaluations were conducted. The ANCOVA test, LSD, and paired t-tests were employed for inter-group comparisons and intra-group assessments.

Results:

 Findings suggest that both training programs significantly impacted static balance (p≤0.01), dynamic balance (p≤0.01), and ankle proprioception in dorsiflexion (p≤0.01) and plantar flexion (p≤0.01) positions. Notably, a notable difference was observed between the effects of the two training programs on posterior-medial orientation, total dynamic balance score, and proprioception in plantar flexion. However, the trampoline training program demonstrated a greater effect than the core stability program. Nevertheless, no significant difference was found between the two training groups in static balance, anterior and posterior-lateral dynamic balance, and proprioception in dorsiflexion (p>0.05). Furthermore, both training groups exhibited significant differences in the researched variables when compared to the control group (p≤0.01).

Conclusion:

 Overall, the results illustrate that incorporating core stability exercises and trampoline training enhanced static and dynamic balance, as well as deep ankle sensation, among athletes dealing with chronic ankle instability.

Objective :

Movement pattern correction exercises using TRX are a novel approach that has recently attracted the attention of researchers. Therefore, the purpose of this research is to investigate the effect of movement pattern correction exercises using TRX on the landing biomechanics and balance of female volleyball players prone to knee injuries.

Methods :

Twenty female volleyball players prone to knee injuries were selected based on specific criteria and split into two groups: one practiced TRX-based movement correcti:on exercises, while the other served as the control. Initial assessments included anthropometric measurements, static/dynamic balance, and landing biomechanics using various tests. The training group underwent exercises three times a week for six weeks, while the control refrained from impactful sports activities. All participants continued their volleyball routines. Post-training, the same assessments were conducted, and statistical analyses were performed using paired t-tests and analysis of covariance to evaluate the results.

Results :

The paired t-test results showed that the static and dynamic balance and landing mechanics of the subjects in the experimental group improved significantly in the post-test stage compared to the pre-test (p < 0.05), while there was no significant difference in the investigated variables in the control group (p ≤ 0.05). Additionally, the results of the analysis of covariance showed a significant difference in the scores of the balance and landing error variables between the two groups in the post-test phase (p < 0.05)..

Conclusion:

 Improving balance and increasing a person's ability to control the movements of the trunk and knee joint during landing can probably occur due to the improvement in the performance of the core stabilizer muscles of the body. Therefore, the use of movement pattern correction exercises using TRX can be considered an effective approach to prevent knee injuries in susceptible female volleyball players.

The present study was conducted to compare the effect of dynamic neuromuscular stabilization (DNS) exercises and Otago on balance, proprioception and trunk endurance of elderly women.

45 elderly participants were divided into three groups: control, DNS, and Otago exercises, each consisting of 15 individuals. Sharpand-Romberg tests as well as standing and walking time were used to evaluate static and dynamic balance (DB). Trunk endurance was evaluated with a 60-degree flexion test and trunk proprioception with a goniometer. After evaluating the variables, the subjects of the training groups performed the exercises for 6 weeks. The control group did their daily activities. After the training program, a post-test was conducted, and statistical analysis was performed using SPSS version 24 software. The analysis of covariance and post hoc Bonferroni test were utilized to compare the research factors between the experimental and control groups at a significance level of 0.05.

The results of the research showed that between the control group with DNS and the control group with Otago in static balance (p=0.001), DB (p=0.001 and p=0.005), trunk proprioception (p=0.001) and trunk endurance (p=0.001, p=0.003). Also, a significant difference was observed between the two groups of DNS-Otago in the variables of trunk proprioception (p=0.004) and trunk endurance (p=0.002). However, this difference was not significant in the field of static and DB (p>0.05).

The results of this study demonstrate the effectiveness of both DNS exercises and Otago in improving balance, endurance, and trunk proprioception in the elderly. These findings emphasize the importance of utilizing these exercises to enhance the functional level of older adults.

The present study aimed to investigate the effect of rhythmic exercises with music on the trampoline on motor ability and balance of educable mentally retarded children.  This research used a semi-experimental method with pre-test and post-test designs for two experimental and control groups. The statistical sample of the research was 30 educable mentally retarded children who were 9-10 years and were selected as available. Bruininks-Oseretsky (BOTMP), time up and get (TUG) tests were used to measure fine motor skills and balance, respectively. Using the counterbalance method. The experimental group performed exercises on a trampoline for eight weeks, and the control group did not receive any intervention. After the intervention, a post-test similar to the pre-test was conducted. After six months, the follow-up period was taken from samples of both groups. The results of Mixed ANOVA showed that rhythmic exercises with music on the trampoline had a significant effect on children's fine motor skills and balance from pre-test to post-test, so 91% of the changes in children's fine motor skills and balance were influenced by rhythmic exercises on the trampoline. In the follow-up test after six months, there was no significant difference in fine motor skills between the two groups. The balance of the experimental group was better than that of the control group. So, it can be said that rhythmic exercises with music on the trampoline are effective in the rehabilitation of educable mentally retarded children, and this method can be used in the movement rehabilitation of these children in schools.

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by premature defects in social communication and unusual behaviors.Autistic children have movement problems such as positional orientation disorders and ability. As for an inactive lifestyle as these children and more effective physical activity in reducing the incidence of these problems, games are a suitable option for increasing discipline in children. In this study, 16 boys with autism spectrum disorder in the age range (7-17) in the Rasht city were selected by convenience sampling and randomly assigned to control and experimental (n = 8). Protocol was performed for six weeks (three days each week), while the control group did not receive any program. The modified stork test was used to measure static balance, the heel-toe test was used to measure dynamic balance, and the Azerty short form was used to measure orientation. For statistical analysis of variables, mixed analysis of variance (groups*time), paired t-test, independent t-test, Mann-Whitney U, and Willcoxon tests were used at a significant level (p≥0.05). Data were analyzed using SPSS software (version 26). Results showed a significant difference in improving children’s dynamic balance and orientation, while no difference was observed in the control group. In addition, no significant effect was observed in improving static balance in subjects (p≥0.05). The result showed that the protocol in the form of a corrective game is effective on the dynamic balance and orientation of autistic children and is not significant on the static balance.

The foot is crucial for maintaining balance and bearing weight, as it is the lowest part of the movement chain of the lower limb. Pes planus is a common condition where the height of the medial longitudinal arch of the foot decreases or disappears. In this study, we aim to determine the effect of kinesio tape and dynamic tape on the balance and ankle dorsiflexion range of motion (DFROM) of men suffering from pes planus following fatigue. In this cross-sectional study, 35 men aged between 18 and 35 with pes planus participated, meeting the inclusion and exclusion criteria. The study evaluated dynamic balance and ankle DFROM on three separate days under each of the three conditions: control (without tape), kinesio-tape, and dynamic tape before and after fatigue. The modified low-dye method was used for taping. The data was analyzed using a repeated measure analysis of variance test, with a significance level of P<0.05. No significant differences were found in ankle DFROM before and after fatigue (P<0.05). Additionally, DB results were not significant differences before fatigue (P<0.05). However, after fatigue, a significant difference was found between the dynamic tape and other conditions in all three directions: anterior, posteromedial, and posterolateral (P<0.05). According to the results obtained, DT is recommended to improve DB in men with pes planus after fatigue.

To investigate and compare two water and land walking programs on the balance index of overweight elderly people.

The current research was quasi-experimental with a pre-test and post-test design. The statistical population included 64 seniors available in Gilan province aged 65 to 75 years. By Cochran's test, the statistical sample consisted of 54 people, and they were divided into three groups: 1. Walking in water (18 people), 2. Walking on land, 3. Control (18 people). Correlated t-test and two-way analysis of variance were evaluated to evaluate the values of overall balance, medial-lateral balance, and anterior-posterior balance in the pre-test and post-test in Spss version 25 software.

In the water walking group, the overall balance index had a mean difference of 0.22 and t value (3.592), the medial-lateral balance index (frontal) had a mean difference of 0.18 and t value (3.633), the anterior-posterior index value (sagittal) had a mean difference of 0.19 and the t value (3.501) was at a significant level (0.05). Also, in the dry walking group, the overall balance index had a mean difference of 0.11 and t value (2.412), the frontal balance had a mean difference of 0.14 and t value (3.015), the sagittal balance had a mean difference of (0.06) and t value (2.006) and the significance level was P<0.05.

Walking exercises on land and walking exercises in water have been associated with improving overall, anterior-posterior, and medial-lateral balance in overweight elderly people.