جستجوی مقالات مرتبط با کلیدواژه « trx » در نشریات گروه « پزشکی »

Background and Aims Decreased muscle strength due to aging can lead to neuromuscular disorders, increased risk of falling, decreased function in daily activities, and reduced independence in the elderly. The present study aims to investigate the effect of eight weeks of TRX suspension training on lower limb muscle strength, balance, mobility, and fear of falling in older men.Methods This is a quasi-experimental. Participants were 30 elderly men with a mean age of 67.9±4.3 years who were assigned into two groups of TRX (n=16) and control (n=14). In the pre-test phase, lower limb strength was measured by the 30-second chair stand test, functional balance by the Berg balance scale, functional mobility by the timed up & go test, and fear of falling by the falls efficacy scale -international. Then, the TRX group performed the functional training for eight weeks, three sessions per week, each for about one hour. After performing the exercises, post-test assessments were performed in two groups. To compare the groups, the analysis of covariance and Bonferroni post hoc test were used in SPSS software, version 19. The significance level was set at 0.05.Results The TRX functional training significantly improved lower limb strength, balance, and functional mobility of the elderly (P≤0.001); however, it had no significant effect on their fear of falling (P>0.05).Conclusion Given the positive effects of TRX functional training on lower limb strength, functional balance, and mobility of elderly men, it seems that this suspension training can be used to improve lower limb muscle strength, functional balance, and mobility of older men.

Obesity and overweight have become a global problem. Obesity is increasing sharply, especially in Iranian women. Experts believe that diet and drugs alone are not enough to treat and control sugar and blood fat metabolism of patients, but physical and sports activities should also be added to the daily schedule.
The current research is a semi-experimental type with a pre-test and post-test design. 40 overweight women were randomly assigned to four groups of combined exercise, combined exercise-supplement , supplement and control. Aerobic training was performed for 8 weeks and three sessions per week with 50-75% of the maximum heart rate and TRX training in the range of 12 to 17 pressure perception on the Borg scale. 24 hours before the start of training and 48 hours after the end of the last session, blood was taken to measure leptin and visfatin. Then, analysis of covariance (Ancova) test was used for inter-group changes and paired correlation T-test for intra-group comparison. Data analysis was done by SPSS version 25 software at a significance level of P<0.05.
The results show a significant decrease in leptin (p=0.001) and visfatin (p=0.001) values, and the changes for the exercise and exercise-supplement group were more than the cinnamon supplement group.
According to the results of the current research and since combined exercise has a beneficial effect on leptin and visfatin compared to supplements, it can be recommended that overweight people use combined exercise to lose weight.

Adipokines have a major role in aging pathobiology and age-related diseases. The present study aims to evaluate the effect of 12 weeks TRX on irisin and chemerin levels in older men. 

In this randomized clinical trial, 16 older men (Mean age=62.06±1.53 years) were selected using a convenience sampling method and randomly divided into training and control groups. The training group performed TRX for 12 weeks, three sessions per week, each for 60 minutes. The training intensity was evaluated by the Borg rating of perceived exertion scale. Blood sampling was done 24 hours before and after training to measure irisin and chemerin levels. Statistical analysis was done by ANCOVA. The significant level was set at 0.05. 

In the training group, there were significant differences between pre- and post-test levels of irisin (P=0.001) and chemerin (P=0.001). The ANCOVA results showed a significantly higher level of irisin (P=0.001) a lower level of chemerin (P=0.001) in training group than in the control group. Also, the percentage of body fat and weight of people decreased significantly (P=0.001). 

It seems that TRX, by increasing irisin level and reducing chemerin level, can lead to improvement in body fat percentage, weight, and Body Mass Index (BMI) of older men.

Proper posture results from musculoskeletal balance, which is associated with a minimal amount of muscle tension. Due to some structural differences between men and women, their movement patterns are different. The prevalence of musculoskeletal disorders is higher in women than in men.  This study aims to evaluate the effect of 6 weeks of TRX exercises on upper and lower extremity function in women with lower crossed syndrome (LCS).

This is a quasi-experimental study with a pre-test/post-test design. Participants were 30 women with LCS  aged 30-40 years in Marivan county, Iran. The upper extremity function was evaluated by the Y balance test and Davis test, and the lower extremity function was measured by the side hop test and the square hop test. Data analysis was done in SPSS software, version 21 using analysis of covariance. The significance level was set at 0.05.

TRX exercises had significant effects on the function of upper and lower extremities in Davis test, Y balance test (at medial, superolateral, and inferolateral directions), side hop test, and square hop test (P<0.001).

Six weeks of TRX exercises can improve the upper and lower extremity function of middle-aged women with LCS, probably by increasing the strength and efficiency of core muscles. Trainers and physiotherapists can use this training method to improve the function of lower and upper extremities in these women.

Impaired control of trunk movement is one of the important mechanisms involved in the occurrence of chronic back pain. The present study aims to investigate the effect of six weeks of TRX exercise on general and specific motor function and quality of life (QoL) of middle-aged women with lumbar motor control impairment.

This is a quasi-experimental study with a pre-test/post-test design using a control group. Participants were 30 middle-aged women with lumbar motor control impairment who were selected purposefully based on the inclusion and exclusion criteria and randomly classified into two groups of intervention and control, and quality of life by the 36-Item short form survey. General motor function was evaluated by functional movement screening (FMS) tests and specific motor function was evaluated by Luomajoki lumbar movement control dysfunction screening tests before and after the intervention. The intervention group received a TRX exercise program for six weeks (three sessions per week, each for 45 minutes), while the control group performed routine daily activities during this period. Data analysis was performed in SPSS software, version 21 using paired t-tests and ANCOVA. The significance level was set at 0.05.

The mean score of all variables related to general motor function (Cohen’s d=0.88-1.50), specific motor function (Cohen’s d=0.95-2.7), and quality of life (Cohen’s d=1.65) improved significantly in the experimental group from pre-test to post-test phase (P<0.05), but there was no significant change in the control group (P>0.05). The ANCOVA results showed that the means of all variables in the post-test phase were significantly higher in the TRX group compared to the control group (P<0.05).

Six weeks of TRX exercise improve the general and specific motor function and QoL of middle-aged women with lumbar motor control impairment. It is recommended that physical therapy and corrective exercise specialists use these exercise to improve the function of middle-aged women with lumbar motor control impairment.

Background and Aims:

 Type 2 diabetes is the most common endocrine disease in the world. Various methods, such as medication and exercise can be helpful, although information on the issue is scarce. Therefore, the aim of the present study was to investigate the effect of eight weeks of TRX resistance training along with using taurine supplementation on glycemic indices of type 2 diabetic females.

Methods :

The sample of the present study consisted of 40 middle-aged females with inactive diabetes with an age range of 40 to 60 years. Subjects were randomly divided into four groups of ten, including the training group, supplement group, training+supplement group, and control group. Fasting blood glucose (FBS) and glycosylated hemoglobin (HBA1C) levels were measured before and after the training period. The duration of the training program for the training group was eight weeks for three sessions per week

Results :

The results showed that HBA1C levels decreased in the post-test compared to the pre-test in the supplement (P=0.027), exercise (P=0.001), and supplement+exercise (P=0.001) groups. While the levels of this variable did not show any significant difference in the control group in the post-test compared to the pre-test (P>0.05). The results showed that FBS levels in the exercise group were statistically lower than in the supplement + exercise group (P=0.012).

Conclusion:

 According to the findings, it can be concluded that resistance training using the TRX method along with taurine supplement can reduce resting FBS and glycosylated hemoglobin (HBA1C) levels in type 2 diabetic women and increase women’s health.

Multiple Sclerosis (MS) is one of the most common destructive diseases of the central nervous system, which leads to disability and impaired mobility and functional capacity in patients. For the rehabilitation of patients with MS, resistance training is considered as a safe and efficient method. In this regard, in recent years, core stability exercise has become one of the common training methods for the rehabilitation of patients with MS. It is defined as the ability to control the position of the trunk over the pelvis to effectively transfer the force to the lower extremities during various activities. This study aims to compare the effects of selected TRX and aerofitness exercises on the core stability of women with MS.

In this randomized clinical trial, 30 women with MS aged 20-50 years with expanded disability status scale score <5 referred to MS Association of Isfahan were selected by a purposive sampling method and were randomly divided into two TRX and aerofitness groups. They performed the exercises for 8 weeks, 3 sessions per week, each for 60 minutes. Their core stability was measured using the Biering-Sørensen test, isometric lateral trunk endurance tests, and Planck test. Data were analyzed using paired t-test and independent t-test.

The selected TRX and aerofitness exercises had a significant effect on the improvement of core stability in women with MS (P <0.05). Patients in the TRX group showed more significant improvement than in the aerofitness group (P <0.05).

The selected TRX and aerofitness exercises can improve the core stability of women with MS. However, further studies are needed to use these exercises in patients with MS.

Intense physical activity, despite its various benefits for general health, can cause possible damage to various tissues of the body due to increasing oxidative stress through increasing production of reactive species. Muscle bruising and pain is a common experience that occurs after performing unusual and intense activities, especially after resistance and extroverted activities. Delayed muscle spasm is associated with the release of creatine kinase, lactate dehydrogenase, and aspartate aminotransferase, and can be measured by the release of these enzymes into the blood. Numerous studies have examined the effect of resistance trainings on muscle injury indices that creatine kinase and lactate dehydrogenase, spartate aminotransferase, alanine aminotransferase and myoglobin indices increased significantly after exercise. In another study, they did not see any significant changes in CK and LDH muscle injury indices after 3 hours of cycling. Therefore, due to the injuries, researchers have drawn attention to the effects of resistance exercise on muscle injury indices. Although resistance training improves performance, it does not prevent the release of inflammatory and traumatic factors, so these factors can cause acute sports injuries, which will be especially important at a young age. Nowadays, special attention is paid to the use of various methods of resistance training, the most prominent of which is TRX or the same resistance training exercises suspended by body weight. Therefore, considering the different effects of sports activities, especially strength training on different parts of the body and the possibility of injury in these exercises, and considering the differences in the type of resistance training programs such as TRX and circular resistance, it is important to pay attention to the effects of this type of training and muscle injury indices. Also due to the contradictory results about the effect of exercise, especially the effect of resistance activity on muscle injury indices and also the lack of sufficient research on the long-term effect of TRX training on muscle injury indices and especially insufficient research on the comparison of resistance training and TRX, the researcher decided to compare 8 weeks of traditional resistance training and TRX on the indicators of muscle injury in inactive women.

In this semi-experimental study, (28) healthy inactive girls with a mean age of 21.00 38 1.38 years were randomly divided into three groups: traditional resistance training (9), TRX training (9) and control (10). The experimental groups performed the training protocol three times a week for 8 weeks with an intensity of 65 to 80%. Blood samples were taken before training and 48 hours after the last training session and creatine kinase and lactate dehydrogenase levels were measured. Data were statistically analyzed using Shapiro-Wilk, dependent t-test and one-way analysis of variance.

The results showed that traditional resistance training and TRX both cause significant changes in LDH levels, while there was no significant difference in CPK variable from pre-test to post-test in all three groups. Also, in examining the differences between groups, no significant difference was observed between the three study groups at CPK levels. While there was a significant difference in the amount of lactate dehydrogenase between the three groups (p <0.05). According to the results of Table 3, there was a significant difference in the levels of lactate dehydrogenase between the resistance group and the TRX group (p = 0.0001), the control group with the TRX group (p = 0.0001) and the control group with the resistance group (p = 0.012) was observed.

The presence of CK and LDH in the blood is an indirect sign of muscle damage as well as the diagnosis of medical conditions such as heart attack, muscular dystrophy and brain diseases. Cellular disorders, especially muscle cells, can cause CK and LDH to leak from cells into the blood serum. The findings of the present study showed that although there was a difference in the means of the three groups in both variables of creatine kinase and LDH, but this difference was significant only for LDH (P <0.05). The results of this study also showed that there is no significant difference in creatine kinase index between the two types of traditional resistance training and TRX after eight weeks. These factors affect the amount of response and the time period of secretion along with the injury. In general, the researchers state that intense resistance activities due to increased mechanical-metabolic pressure on the fibers lead to rupture of fibers, fluidization of z-plates, rupture of sarcolemma, displacement of intracellular organs, instability of plasma membranes and increasing secretion of intracellular proteins, after performing the resistant and intense activity. In fact, fatigue of muscle fibers following exhaustive activities can lead to increasing permeability of cell membranes to intracellular free calcium ions and dysfunction of sodium-potassium pumps, causing instability of cell membranes and activation of proteases and intracellular lipases. There is a close relationship between the release of phospholipases and creatine kinase due to the activity of intracellular proteolytic enzymes stimulated by calcium in the isolated muscle of mammals. The results of this study on LDH showed that the LDH of the experimental groups was significantly lower than the control group. Lactate dehydrogenase is one of the enzymes involved in the anaerobic pathway of ATP production. The secretion of lactate from the training muscle and the activity of the muscle pump indicate the role of continuous exercise training on the rate of cell damages. It has also been shown that trained people have less enzymatic release into the bloodstream than people who did not, which may be due to the adaptation of trained people to the physical activity and exercise; because the skeletal muscles of athletes and trained people have the highest amount of ATP, which is used during exercise and physical activity to maintain the integrity of the cell membrane, and as a result, reduces the leakage of enzymes into the blood. In any case, it seems that as a result of running consecutive weeks of regular exercise programs, intramuscular adaptation may be established, and the nature of resistance training programs causes adaptation to occur at all levels, including intramuscular and better blood supply, which reduces the activity level of CK and LDH enzymes as indicators of muscle and cell damage; therefore, it seems that the use of appropriate methods of training reduces the disruption of biochemical changes. Therefore, according to the findings of the present study, it can be stated that the implementation of TRX training program and traditional resistance both can significantly reduce the rate of LDH cell damage index and no change in CK, and there is no difference between this type of training on the indicators muscle damage in young women, so both types of exercise can have beneficial effects on muscle injury indices.

Recently, fitness (bodyweight workout), kickboxing and TRX training have become very popular. The aim of the present study was to determine the effect of a period of fitness-kickboxing and fitness-TRX training on some anthropometric indices and cardiovascular risk factors in overweight women.

Forty overweight women were randomly divided into three groups. The control group included fitness training and the experimental group included fitness training with kickboxing and fitness training with TRX. Subjects performed the training for two months (3 sessions per week). Then anthropometric indices with body composition analyzer and blood samples (to measure blood lipid profile) were measured on two occasions (before the beginning of the course and 48 hours after the end of the course). For analyzing data, paired sample t-test and one-way analysis variance with the significant level of p<0.05 were used.

There was a significant difference between body weight (p=0.001), BFM (p=0.009), BMI (p=0.0001), %BF (p=0.037), WHR (p=0.024) and also total cholesterol (p=0.011) in fitness group, a significant difference between BFM (p=0.012), %BF (p=0.003) and WHR  (p=0.002) and also total cholesterol (p=0.009), HDL (p=0.016) and LDL (p=0.0001) in fitness-kickboxing group and a significant difference between body weight (p=0.0001), BFM (p=0.001), BMI (p=0.0001), %BF (p=0.001), WHR (p=0.0001) and also total cholesterol (p=0.001) and LDL (p=0.004) in fitness-TRX in the pre-and post-test (p<0.05). Furthermore, there was a significant difference between %BF (p=0.003) and also HDL (p= 0.021) and LDL (p=0.0001) in three groups after a period of training.

All three trainings somehow influenced anthropometric indexes and cardiovascular risk factors in overweight women. With the comparison of the three groups, it can be concluded that fitness training is more effective on decreasing %BF and LDL, fitness-kickboxing on decreasing %BF and increasing HDL as well as fitness-TRX training on reducing LDL.

Balance is an integral part of most daily activities and is also a determining factor in assessing the functional ability of athletes. The aim of this study was to investigate the effect of a selected TRX training course on static and dynamic balance of female athletes.

Twenty female athletes were randomly divided into two equal groups of 10 control and experimental subjects. Before and after the training protocol, static balance (BESS balance error test) and dynamic balance (Y balance test) were evaluated. The experimental group then performed their TRX exercises for eight weeks (three sessions per week). Independent dependent t-test was used to analyze the data.

Findings showed that there was a significant difference in static balance and dynamic balance before and after exercise in the experimental group.

Based on the findings of the present study, it can be stated that TRX exercises improve the static and dynamic balance of female athletes. Therefore, this type of training can be included as an important factor in improving balance and also preventing sports injuries in designing their training programs.

Multiple sclerosis (MS) is a chronic, autoimmune, inflammatory nervous system disease, which is emerged under the influence of the loss of myelin in the white matter of the brain, spinal cord, and optic nerves. The most complications in MS include tiredness, muscle cramp, tremor, unsteady gait, and inability to move. This study aimed to compare the effect of selected exercises with TRX and aerofitness on balance and proprioception in patients with MS.

A total of 30 women with MS referred to the Isfahan MS association in the age range of 20-50 years with an extended disability scale score of 1-4 were purposefully selected and randomly assigned into two selected groups of TRX exercises (n=15) and aerofitness (n=15). The subjects in both groups performed TRX and aerofitness exercises for eight weeks, three sessions per week (60 min per session). Balance and ankle proprioception were measured by the stork balance test and isokinetic device, respectively. Paired and independent t-tests were used to analyze the data (P<0.05).

The results showed that the selected exercises with TRX and aerofitness increased balance and ankle proprioception significantly in the patients with MS (P<0.05). Regarding the comparison between TRX and aerofitness, it was shown that TRX (P<0.01) had a more significant effect, compared to aerofitness exercises (P<0.05).

The results showed that the selected exercises with TRX and aerofitness improved balance and ankle proprioception in patients with MS. Therefore, it is recommended to perform these exercises as a training intervention to improve the balance and ankle proprioception in people with MS.

Core stability and strengthening core stability muscles have become one of the new topics in the field of sports medicine. The present study aims to compare the effects of eight weeks of TRX and CXWORX exercises on core endurance, trunk muscle strength, and dynamic balance of female college students.

This quasi-experiment study was conducted on 30 young healthy female college students. They were randomly divided into two experimental groups of TRX (n=10), CXWORX (n=10) and one control group (n=10). In the pre-test phase, trunk muscle strength was evaluated by sit-up test, dynamic balance by Y-balance test, and core endurance by McGill core endurance test. Then, experimental groups performed eight weeks of selected training program, 3 sessions per week, while the control group was asked to do their daily activities. After intervention, the three groups underwent post-test assessments. Shapiro-Wilk test was used to investigate the normality of data distribution, and repeated measured ANOVA was used to compare data. The significance level was set at P≤0.05.

Both TRX and CXWORX had a positive effect on the participants’ trunk muscle strength, core endurance, and dynamic balance such that their mean scores increased after training. The TRX group performed better than the CXWORX group in all study variables (P≤0.05), except for the Y balance at the anterior direction.

Both TRX and CXWORX exercises have positive effects on the trunk muscle strength, core endurance, and dynamic balance of female college students, where the effect of TRX was greater. Therefore, occupational therapists and trainers are recommended to use both exercises, especially TRX to improve core muscle strength and endurance.

Changes in anabolic and catabolic hormones are associated with increasing age in old age. This study aimed to evaluate the effect of 12 weeks of TRX training on testosterone and cortisol serum levels in elderly men.

In this quasi-experimental study, 16 elderly men with age range of (62.06±1.53) years were selected as a sample and randomly selected in two training groups: TRX and control. There were 8 participants in each group. The experimental group trained in a TRX training program for 12 weeks and 3 sessions per week for 60 minutes. Blood samples were taken 48 hours before and after the intervention to measure serum testosterone and cortisol. Statistical analysis was performed on the surface P<0.05.

The results of paired t-test showed that there was a significant difference between pre-test and post-test in testosterone levels (P=0.01, t=-0.49) in TRX group. Also, the results of analysis of covariance showed that the amount of testosterone in the TRX group increased compared to the control group, but the changes were not significant (P=0.06, F=4.07). Also, no significant change in blood cortisol levels was observed between the two groups (P= 0.20, F=1.77).

It seems that resistance training with body weight can be effective in the increasing the anabolic hormone testosterone in the elderly and reduce the level of the catabolic hormone cortisol, also. Therefore, TRX training is recommended as a suitable training method to increase testosterone levels in the elderly.

It is known that the total-body resistance exercise (TRX) is a new training method to improve muscle strength and muscle mass, but, the impact of TRX training on the hormones involved in regulating muscle mass remains unknown. Therefore, the purpose of this study was to determine the effects of one period of TRX training on serum concentration of myostatin and follistatin in inactive women.

In an experimental study with pre- and post-test design, 27 inactive women aged 20 to 40 years were randomly divided into two groups of control (n=12) and TRX (n=15). The TRX group performed for eight weeks and three sessions a week on selected TRX trainings, which included 6 main movements for 60 minutes. Blood samples were collected at baseline and 48 hours after the last exercise session and serum concentration of myostatin and follistatin was measure. Independent sample t-test and paired sample t-test was used for analyzing data.

The results showed that TRX training resulted in a significant reduction in serum myostatin (TRX: 42.53 ± 8.64 pg/ml versus control: 52.77 ± 12.90 pg/ml) when compared to the control group (P= 0.021). Also, TRX training resulted in a significant increase in serum follistatin (TRX: 1865.93 ± 209.78 pg/ml versus control: 1651.41 ± 164.92 pg/ml) when compared to the control group (P= 0.008).

According to the present findings, it seems that one period of TRX training may be result in decrease of myostatin and increase of follistatin hormones in inactive women

The most important anabolic and catabolic hormones which levels are altered by resistance training are IGF-1 and cortisol, respectively. The purpose of the present study was to investigate the effect of total body resistance training (TRX) on serum levels of IGF-1, cortisol and some health-related physical factors in active women.  

In this study, 20 active women (mean age 27.05 ± 3.11) were randomly divided into experimental (n= 10) and control (n= 10) groups. The experimental group program consisted of TRX training for 6 weeks, 3 sessions per week for 50-60 minutes under the supervision of a TRX trainer. The intensity of the exercises for the first two weeks, using the Borg scale was in the range of 4-5, in the second and the third two weeks, based on the increase in load in the range of 5-6 and 6-7, respectively. Serum levels of IGF-1, cortisol, body fat percentage, upper and lower body strength and endurance were measured before and after exercise.

Six weeks of TRX training increased cortisol and IGF-1 levels in active women, although this increase was not statistically significant (p>0.05). But the results showed that these exercises can significantly decrease body fat percentage and increase the strength and endurance of the upper and lower muscles of active women.

According to the findings of the present study, it seems that performing the TRX training can significantly improve body fat percentage, strength and muscle endurance in active women and could utilize as an alternative resistance training model to improve fitness factors.

The most common symptoms of serum muscle injury that may change after intense physical activity are creatine kinase and lactate dehydrogenase (CK, LDH). This study aimed to study the effects of TRX training course and central stability on CK and LDH in obese girls.

The research was semi-experimental. The subjects of this research, including 40 ‌women from 20-25 ‌years old, were randomly selected as research sample and were randomly assigned into 4 ‌groups (10) (TRX, central stability, TRX-central stability and control). The subjects performed the program for 8 weeks. Before and after training period, blood samples were taken and evaluated. Kolmogorov-Smirnov, Leven, one-way ANOVA tests were used to determine ‌(P≤0.05).

The results of the present study showed that creatine kinase (P=0.002) and lactate dehydrogenase (P=0.001) were reduced in all three groups after the training period compared to before the exercise and this change was significant compared to the control group. However, no significant difference was observed between different training methods.

Performing all three resistance training methods of the whole body, central stability and combining these two methods together, caused damage, inflammation and muscle contraction but gradually the principle of adaptability was adjusted to the production of the enzymes creatine kinase and lactate dehydrogenase. All of the three methods can be recommended as methods to increase muscle strength.

Functional dysfunction has been reported as one of the most important consequences of functional ankle instability injury. One of the newest tools used to rehabilitate musculoskeletal injuries is suspension training with TRX )Total Body Resistance Exercise(. However, so far, its effect on the various functional factors in athletes with functional ankle instability has not been determined.  Therefore, the purpose of this study was to investigate the effect of 6 weeks of suspension training with TRX on the performance scores of athletes with functional ankle instability.

30 male athletes with functional ankle instability were selected and then randomly assigned into the control and training groups. The subjects were selected by inclusion and exclusion criteria. Subjects' performance was assessed by side hop test, figure 8 test, and three single-leg hop test. The training group performed 18 training sessions of 45 minutes during 6 weeks. During 6 weeks, control group were asked to not perform any special exercise. Then, the post-test was performed in both groups. In order to compare the scores of functional tests between two groups, paired t-test and covariance analysis were used. Significant level was considered as p≤0.05 in all statistical analyzes.

The results of statistical tests showed that there is a significant difference between the mean scores of each of the three side hop test (p=0.001) figure 8 test (p=0.001), and three single-leg hop tests (p=0.001) between the two groups in the post-test. Therefore, that subjects of the TRX training group had better performance in all three tests than those in the control group.

Since the results of this study showed that performing TRX suspension training can improve the performance of athletes in side-hop test, figure 8 test and triple hop test, therefore it recommended that all sport trainers use the exercises used in this study to improve the performance of athletes with functional ankle instability.

Total-Body Resistance Training (TRX) is a new method for increasing muscle strength and decreasing muscle atrophy and improving balance in the elderly. The purpose of this study was to investigate the effect of 12 weeks of TRX training on static and dynamic balance in elderly men.
 

In this quasi experimental study, 16 elderly men, with age range of (62.06 ± 1.53 years) were selected as sample by availability sampling method; and were randomly placed in two TRX and control groups; each group n=8. Experimental group practiced in a TRX exercise program for 12 weeks; each week 3 sessions with duration of 60 minutes. The collected data were analyzed by paired t-test and analysis of covariance (ANCOVA) at a significant level of P<0.05.
 

The results of paired t-test showed that there is significant difference between pre-test and post-test for static (t= -22.40, p=0.0001) and dynamic (t=13.8, p=0.0001) balance in TRX group. Also the results of ANCOVA test showed that there was significant difference between TRX and control groups in static (F=495.45, P =0.0001) and dynamic balance (F=74.94, P= 0.0001).

It seems that TRX exercises can increase static balance time and decrease dynamic balance time in older men. Probably by using this exercise method, negative physical consequences and consequently treatment costs can be reduced. This method can be useful in the field of elderly nursing.