Dynamic Balance Ability Research Articles

대학야구선수의 Y Balance Test와 하지 가동성의 관계

The purpose of this study is to present the Y Balance Test (YBT) profile of college baseball players and determine the relationship between YBT and ankle and hip mobility. The subjects of this study were 27 college baseball players. The dynamic balance ability of the lower extremities was measured using the YBT Kit. Ankle mobility was measured using the modified weight bearing lunge test(WBLT) and the non-weight bearing dorsiflexion(NWBD) range of motion(ROM) test. Hip mobility was measured for flexion and extension ROM. ROM was measured with passive ROM using a goniometer. The dynamic balance and mobility of the left and right lower extremities were compared using the paired-T test. The relationship between dynamic balance and mobility of the lower extremities was analyzed using Pearson’s correlation. The YBT results of college baseball players showed no significant difference between left and right(p＞.05). The lower extremity mobility of college baseball players was significant only in the NWBD ROM of the ankle(p=.012), and other variables were not significantly different(p＞.05). YBT right anterior reach had a significant correlation with WBLT right(r=.628, p=.000) and WBLT left(r=.507, p=.007). YBT left anterior reach had a significant correlation with WBLT right(r=.807, p=.000) and WBLT left(r=.691, p=.000). In addition, the YBT left posteromedial reach had a significant correlation with the right hip extension ROM(r=.394, p=.046). However, there was no significant correlation with other variables(p＞.05). Overall, the decrease in ankle mobility of college baseball players is related to the decrease in dynamic balance ability. In particular, the decrease in dorsiflexion mobility of the ankle in the weight-bearing lower extremity is related to the limitation of the anterior reach motion of the non-weight-bearing lower extremity. Therefore, it is recommended that college baseball players regularly evaluate their ankle mobility to improve dynamic balance ability and prevent injuries.

뉴로피드백 훈련과 신호반응 훈련이 단거리 육상선수의 집중력, 청각반응속도 및 동적 평형력에 미치는 영향

Purpose: The purpose of this study is to investigate the influence of Neurofeedback training on attention, auditory respond process and dynamic balance in sprinters.<BR> Method: The subjects, total 30 adults aged 20 to 23 years, were classified into three groups by simple random sampling. The group was set into the Control Group (CG) (n=10), Neurofeedback Group (NFG) (n=10) and Neurofeedback + Exercise group (NFE) (n=10). The NFG and NFE performed Neurofeedback training for 6 weeks, 3 times per week and 40 minutes per session. The dynamic balance ability was measured by the Y-balance test kit and all tests were conducted before and after the intervention. All statistics of this study were analyzed by SPSS version 25.0 and the data was calculated as mean (M) and standard error (SE). A two-way repeated measure ANOVA was used to verify the differences between before and after the intervention. To check the differences between groups at each period, a one-way ANOVA was performed. The significant level of hypothesis verification was set as p<.05.<BR> Results: The results of this study are as follows. The attention ability, auditory process and dynamic balance showed a statistically significant interaction effect (p<.05.). All of them showed significant changes in both groups and times (p<.05.). According to post-hoc test, NFG and NFE showed positive effects compared with CG in attention ability, auditory process and dynamic balance ability.<BR> Conclusion: In conclusion, as one of the ways to increase the ability of starting block start in sprinters, neurofeedback training with exercise is more likely to be effective on the athlete. Therefore, this study suggests that neurofeedback training with auditory response exercise could be utilized as a part of the training method in starting block start training of sprinters.

Frailty state transitions among non-frail and vulnerable older adults: Does mobility performance really matter?

We assessed the predictors of becoming frail between non-frail and vulnerable community-dwelling older adults in a retrospective cohort study with adults (n=346) aged 60 years or older recruited from primary healthcare centers. Edmonton Frailty Scale assessed frailty status, and Kaplan-Meier estimated the frailty-free probability and compared it between groups. Cox regression models explored predictors of becoming frail. At baseline, there were 32.3% individuals classified as Frail according to the EFS, whereas 32.4% were vulnerable and 35.3% non-frail. We observed 82 incident cases of frailty, 65.8% among those classified as vulnerable and 37.8% in the non-frail group (p < 0.05). Female sex, years of education, and an overall score of < 45 on the Berg Balance Scale were the only independent predictors of becoming frail. Although frailty is not only correlated with mobility, static and dynamic balancing abilities appear to have the same impact as a vulnerable state to becoming frail.

Effects of Multi-Directional Step-Up Training with Rhythmic Auditory Stimulation on Gait and Balance Ability in Stroke Patients

The purpose of this study was to investigate the effects of multi-directional step-up training with rhythmic auditory stimulation on gait and balance ability in stroke patients and also to help develop fall prevention and exercise programs for returning to daily life after stroke. The intervention method was randomly assigned to sixteen stroke patients, eight patients each in the experimental group and the control group. The experimental group carried out multi-directional step-up training with rhythmic auditory stimulation, and the control group performed only multi-directional step-up training. The training proceeded twelve times for 30 minutes for four weeks, and functional gait assessment, 10-meter walk test, and dynamic (by the Berg balance scale) and static (by Balancia software, Mintosys, Korea) balance ability assessments were conducted to examine the effect of the training on improving balance and gait ability. The study compared and analyzed the differences in the amount of change within the groups before and after training, and the differences in the amount of change between the two groups. Both groups showed more improved results after training than before in all assessments that measured gait and balance ability (p &lt; 0.05). However, the experimental group showed a greater difference in the amount of change in every gait and balance ability assessment compared to the control group. (p &lt; 0.05). Therefore, multi-directional step-up training can be an efficient intervention to improve the gait and balance ability of stroke patients and when accompanied by rhythmic auditory stimulation, the effectiveness could be maximized.

Gamma-Band Frequency Analysis and Motor Development in Music-Trained Children: A Cross-Sectional Study

Background: The aim of this study was to analyze the gamma-band frequency and motor performance of children with and without music training. Methods: This cross-sectional study included 31 right-handed children, 6–11 years old, who were allocated to two groups: 1) the music group (MG), including children who attended preschool and musical training (n = 16), and 2) the no-music group (NMG), including children who attended preschool but received no additional music training (n = 15). The outcomes were gamma-band frequency measured by electroencephalography, manual dexterity, aim-and-catch, and static and dynamic balance abilities measured by the Movement Assessment Battery for Children, and fine motor skills, overall motor skills, balance, corporal body scheme, spatial organization, temporal orientation, and general motor quotient (GMQ) by a Brazilian scale for motor development. Results: There 1was a significant difference between groups in the peak frequency (p = 0.0195) and median frequency (p = 0.0070) in the F3–F4 regions. Static and dynamic balance (p = 0.03), temporal orientation (p < 0.01), and GMQ (p < 0.03) were higher in MG than in NMG. Conclusion: The musically trained children had increased gamma-peak frequency in the frontal region and greater temporal orientation, balance, and the overall motor quotient.

Effects of Hip Joint Strengthening Exercises and Lumbopelvic Stabilization Exercises on Balance and Instability of Adults with Functional Ankle Instability

In subjects with functional ankle instability, lumbopelvic instability causes instability of the hip and lower extremities. The purpose of this study is to investigate the effect of a lumbopelvic stabilization exercise program on the balance and instability of adults with functional ankle instability. 30 adults with functional ankle instability were assigned to a hip joint strengthening exercise group and a lumbopelvic stabilization exercise group at random. General ankle intervention was used in the hip joint strengthening exercise group, whereas a stabilization exercise using a sling was added in the lumbopelvic stabilization exercise group. The dynamic balance ability, static balance ability, and ankle instability were measured. A Paired-sample t-test was conducted to see the within-group changes in dynamic balance, static balance, and ankle instability scale before and after the experiment. To compare the changes between groups, an independent-sample t-test was conducted. The lumbopelvic stabilization exercise group showed increased the posterior-lateral distance and the scores on foot and ankle ability measures (p<0.05). The average movement distance of the center of pressure, average movement speed, and average movement area 95% decreased significantly (p<0.05). The ankle instability instrument score decreased (p<0.05). The results suggest that existing lumbopelvic stabilization exercises not only help reduce the pain and enhance the function of the hip joint they are also an effective approach for adults with functional ankle instability. Lumbo-pelvic stabilization exercise programs that are tailored to individual characteristics, such as functional level, muscle strength, and duration of ankle injury, reduce the frequency of re-injury and stabilize ankles to improve pain and function.

Influence of obesity and gender on the dynamic and static balance in children aged 8-10 years

Objective To explore characteristics of dynamic and static balance of children aged 8 to 10 years, and to provide a reference for prevention of injuries caused by physical activities among obese children and the choice of facilities for physical activities. Methods Totally 100 obese children and 100 normal children were selected as the subjects by one-legged jumps from 5 primary schools in economic and technological development district of Hefei, the proportion of male and female children was 1 : 1 in each group. IIM-BAL-100 balance tester was used to assess the static balance ability under double feet standing with eyes closed and right foot standing with eyes opened. The dynamic balance of double feet standing with eyes opened was measured by the Balance-check dynamic balance tester. Two-factor analysis of variance (ANOVA) was used to examine the effect of obesity and gender on the dynamic and the static balance. Results In the static balance ability, when standing with both eyes closed, there was no significant difference in all static balance values between groups, genders and the interaction between the two factors ( F = 2. 33, 0.42, 0.76, P>0.05). When standing on one foot with eyes opened, there was significant difference in the static equilibrium index between the groups and the gender ( F = 2.72, 3.07, P<0.05). In terms of dynamic balance ability, all the dynamic balance indexes had statistically significant differences among the groups ( F = 43.67, P<0.01). Conclusion Obesity can significantly reduce the ability of single-leg static balance and dynamic balance in 8-10-year-old children. Sex can significantly affect the single foot static balance ability of 8—10-year-old children, but it has little effect on the dynamic balance ability of 8-10-year-old children. 【摘要】 目的 探讨不同性别肥胖儿童静动态平衡能力特点, 为肥胖儿童运动损伤的预防以及运动选材提供理论依据。 方法 通过单腿前跳法与年龄分层抽样法, 从合肥市经开区5所小学选取100名8~10岁肥胖儿童及100名正常体重儿童 为研究对象, 每组儿童男、女比例均为1 : 1。采用IIM-BAL-100型静态平衡测试仪分别测试闭眼双足和睁眼单足站立状 态下受试者各平衡指标的值, 采用Balance-check动态平衡测试仪测试睁眼双足站立状态下的动态平衡能力。使用双因素 方差分析检验肥胖和性别对静动态平衡能力的影响。 结果 在静态平衡能力方面, 当闭眼双足站立时, 所有静态平衡指标 值在肥胖、性别以及两因素交互作用间的差异均无统计学意义( F值分别为2.33,0.42,0.76, P 值均>0.05); 当睁眼单足站 立时, 各静态平衡指标值在是否肥胖和性别间的差异均有统计学意义( F值分别为2.72,3.07, P 值均<0.05)。在动态平衡 能力方面, 所有动态平衡指标值在是否肥胖间的差异有统计学意义( F = 43.67, P<0.01)。 结论 8~10岁肥胖儿童的单足 静态平衡能力和动态平衡能力弱于正常体重儿童;8~10岁男童的单足静态平衡能力弱于女童。

The Effect of 6-Week Combined Balance and Plyometric Training on Change of Direction Performance of Elite Badminton Players.

The study aimed to investigate the effect of combined balance and plyometric training on the change of direction (COD) performance of badminton athletes. Sixteen elite male badminton players volunteered to participate and were randomly assigned to a balance-plyometric group (BP: n = 8) and plyometric group (PL: n = 8). The BP group performed balance combined with plyometric training three times a week over 6 weeks; while the PL group undertook only plyometric training three times a week during the same period. Meanwhile, both groups were given the same technical training. All participants were tested to assess the COD ability before and after the training period: Southeast Missouri (SEMO) test and 5-0-5 test, dynamic balance ability (Y-Balance test, YBT), and reactive strength index (RSI). Repeated-measure ANOVA revealed that after the intervention there was a significant time × group interaction for 5-0-5 COD test, YBT of both legs and RSI (p < 0.05, partial η2 = 0.26–0.58) due to the better performance observed at post-test compared with a pre-test for the BP group [effect size (ES) = 1.20–1.76], and the improvement was higher than that of the PL group. The change in SEMO test did not differ between BP and PL (p < 0.159, partial η2= 0.137), but the magnitude of the with-group improvement for BP (ES = 1.55) was higher than that of PL (ES = 0.81). These findings suggest that combined training could further improve the COD performance of badminton athletes than plyometric training alone and might provide fitness trainers a more efficient COD training alternative.

The Relationship Between Dynamic Balance Ability and Shoulder Pain in High School Baseball Pitchers.

Dynamic balance is essential for pitching motion because pitching kinematics requires whole body coordination. The Star Excursion Balance Test (SEBT) and the Y balance test (YBT) evaluate dynamic balance quantitatively. There are some reports that investigated the relationship between SEBT/YBT and pain in upper and lower extremities, but there is no study among high school baseball pitchers. Dynamic balance deficiency is associated with shoulder pain among high school baseball pitchers. Cross-sectional study. Level 4. A total of 259 male high school pitchers who participated in the preseason medical checkups were included in the study. YBT was used to measure their dynamic balance. The participants completed a questionnaire which asked if they were currently experiencing shoulder pain. Twenty-two pitchers had shoulder pain during the preseason medical checkups. In the YBT, the posterolateral balance while standing with the axis leg as well as the posteromedial and posterolateral balance while standing with the step leg were significantly lower in the pain group than in the nonpain group (P = 0.05, 0.04, and 0.001, respectively). A logistic regression analysis showed that posterolateral balance when standing with the step leg was an independent risk factor for current shoulder pain (P = 0.04, odds ratio 0.942, 95% CI 0.892-0.996). The dynamic balance of high school baseball pitchers with shoulder pain was lower than that of participants without shoulder pain. In particular, posterolateral direction with the step leg standing was significantly related to shoulder pain. Among high school baseball pitchers, decreased dynamic balance was related to current shoulder pain. YBT maybe recommended in preseason medical checkups for high school baseball pitchers.

The Relationship Between Functional Movement and Static and Dynamic Balance Ability

The Relationship Between Functional Movement and Static and Dynamic Balance Ability

신체활동 참여가 발달장애인의 하지 근 긴장도 변화와 신체 균형능력에 미치는 영향

The purpose of this study was to investigate the effects of physical activity on changes in lower limb muscle tone and body balance ability in people with developmental disabilities. In this study, subjects with developmental disabilities who showed voluntary participation as those diagnosed as developmental disabilities through medical examination were selected as subjects. These subjects were randomly assigned to the trampoline group (n=10) and the yoga group (n=10) as those who did not participate in the recent regular exercise program. The trampoline and yoga were performed twice a week for a total of 20 times for 10 weeks with 60 minutes each. The intensity of exercise was divided into 3 steps, and rating of perceived exertion(RPE) of 8-9, 10-11, and 12-13 were performed, respectively. Muscle tone was measured at rest in a total of three muscle groups of the quadriceps muscle, hamstring, and calf. Also, one leg standing test was used to test the static balance ability, and linear gait test was performed to test dynamic balance ability. Based on the results of the study, the following results were obtained. First, in the trampoline and yoga group, the quadriceps muscle tone increased(p<.05) significantly, and the hamstring(p=.056) and calf muscle tone increased(p<.05) only in the trampoline group. Second, the static balance ability was significantly increased(p<.01) in the trampoline and yoga group. Third, the dynamic balance ability S1 & S2 was significantly increased(p<.05) in the trampoline group, but increased(p=.07) only in the dynamic balance ability S1 in the yoga group. Therefore, a physical activity program using trampoline and yoga can be an effective intervention to improve muscle tone, and it is considered appropriate as an alternative physical activity to improve balance and exercise performance for people with developmental disabilities in the future.

Effect of Cryotherapy on Muscle Strength and Balance on the Ankle Joint in Patients with Stroke

Purpose: This study investigated the effects of cryotherapy on the ankle joint muscle strength and balance ability in stroke patients with ankle joint muscles. Methods: In this study, 20 patients with chronic stroke were recruited from a rehabilitation hospital. The patients were divided into two groups: a cryotherapy group (10 patients) and a control group (10 patients). The cryotherapy group performed sit-to-stand training for 15 minutes and then cryotherapy for the minutes. In the control group, after sit-to-stand training for 15 minutes, blocked cryotherapy was provided for three minutes. In both groups, the interventions were provided five times a week for three weeks. The strength of the ankle joint muscles was measured before and after the training using the Biodex systems 3. The static balance ability was measured us ing balancia software, and the dynamic balance ability was measured by performing the sit-to-stand test (FTSST) five times. Results: After the training periods, the cryotherapy group showed significant improvement in the ankle dorsiflexor strength, ankle plan tarflexor strength, weight distribution of the affected side, and FTSST compared to the control group (p<0.05). Conclusion: Based on these results, cryotherapy could be considered an effective method to improve the strength of ankle joint muscles. Cryotherapy improves muscle strength as it increases the motor neuron excitability. Therefore, cryotherapy may be considered to improve the strength of the ankle joint muscles of stroke patients.

폐경전 여성의 골밀도 분류에 따른 등속성 근기능 및 동적 균형능력에 관한 비교 연구

폐경전 여성의 골밀도 분류에 따른 등속성 근기능 및 동적 균형능력에 관한 비교 연구

Biological analysis of trunk support strength training in sports training

With the increasing probability of sports injury in sports training or competition, trunk support strength training has been given more significance, including functional training and rehabilitation training. There are more and more researches on trunk support strength training, but the results are not satisfactory. To make the athletes maintain a high level of sports for a long time and reduce the occurrence of injuries, the biological analysis of trunk support strength training is studied in this paper. In this study, 12 male athletes of a track and field team were divided into experimental group (n = 6) and control group (n = 6). The experimental group received trunk support strength training, while the control group received conventional strength training. Before the experiment, the basic qualities of the two groups of athletes were counted, and the related indexes of functional movements and dynamic balance ability of the two groups of athletes were tested. After 8 weeks, the relevant indexes were tested again to compare the data. The experimental data show that there is no significant difference between the two groups in all aspects of basic quality. Before and after the experiment, the total score of functional movement screening test of the two groups of athletes were improved, the experimental group increased by 21.09%, the control group only increased by 11.03%. In the medium difficulty dynamic balance ability test, the green goal score (A) of the experimental group was the largest, which was 17.4% and 22.26%, respectively; the balance distribution (E) of the control group was the smallest, which was − 0.66% and − 0.72%, respectively. In the dynamic balance ability test of extreme difficulty, the green goal score (A) of the experimental group was the largest, which was 17.95% and 23.75%, respectively; the stability (D) of the control group was the smallest, which was 0.72% and 1.24%, respectively. This shows that the functional movement and dynamic balance ability of the experimental group based on the trunk support strength training is better than that of the control group based on the conventional strength training.

서퍼들의 숙련도에 따른 균형능력과 하지 근활성도 분석

This study is to verify the difference in balance ability and muscle activity in lower extremity depending on their surfing experiences and to provide the basis for the coaching of surfing. Forty adult goofy and regular surfers who were more than 30 surfings per 1 year participated in this study, and they divided into two groups; the experienced group (≥ 5 years of surfing experience) and the inexperienced group (< 5 years). All subjects were tested on their static balance ability for one leg standing and dynamic balance ability for target test with both legs, and they also were measured the muscle activity of tibialis anterior and medial gastrocnemius during the one leg standing. Static balance ability was defined as envelope area (ENV), total legnth (TL), and sway velocity (SV). The ENV, TL, and SV of right leg in experienced goofy during static balance test with one leg were significantly higher than inexperienced, and there were no differences in the dynamic balance ability and the muscle activity for static balance ability with one leg depending on their surfing experiences. Although the surfing required the balance ability, the results of this study indicate that the experience of surfing did not affect their balance ability and muscle activity in lower extremity. Further study should consider the surfing-related skill level and muscle activity when surfing for develop the training program for surfers" balance ability and their performance.

Cervical Vestibular-Evoked Myogenic Potentials and Balance Testing in Children with Down Syndrome.

Introduction Vestibular otolith function plays a major role in balance control. Objective To investigate the saccular and balance functions of children with Down syndrome (DS). Methods In total, 15 children with DS aged between 9 and 11 years were included. An age- and gender-matched control group (CG) composed of 15 normal participants was also included. The subjects with DS had trisomy 21, without hearing or organic problems, and they had independence in stance. The saccular function among the children with DS and among the controls was tested using air-conduction cervical vestibular-evoked myogenic potentials (cVEMPs). In addition, the static and dynamic balance statuses were evaluated using the following assessments; the Pediatric Balance Scale (PBS), the modified Clinical Test of Sensory Interaction on Balance (mCTSIB), the Romberg test, and the Timed Up and Go (TUG) test. Results In the present study, the results of the saccular function test showed that there was a significant difference between children with and without DS ( p < 0.05). The DS subjects had significantly earlier N1 latancy and lower amplitude of the cVEMPs (< 70 μV) compared with the control subjects. The static-dynamic balance ability was statistically and significantly different in children with DS compared with the controls ( p < 0.05). Conclusion These results revealed that saccular function seems to be affected in DS subjects. The dysfunction in static and dynamic balance abilities of the children with DS may be attributed to vestibular dysfunction as well as low gross motor skills. This knowledge should be taken into account when assessing motor performance in those subjects. Additional larger studies testing other dimensions of the vestibular system in children with DS are needed.

The Effect of Combined Treatment of Chiropractic and Shoulder Flexibility Exercises on the Balance Ability of the Deformed Cervical Alignment Subjects

OBJECTIVES The purpose of this study is to analyze the effect of changes in cervical alignment on balance ability, to correct cervical alignment, and to present effective interventional variables that can improve balance ability.METHODS Group 1 (Deformed cervical alignment group, n = 16) and Group 2 (Normal cervical alignment group, n = 16). The subjects measured their balance ability before and after treatment with chiropractic and shoulder flexibility exercises. Balance ability was measured by static balance and dynamic balance. For Group 1, chiropractic was treated once a week for 15 minutes, and shoulder flexibility exercise was treated three times a week for one hour. The pre- and post-measurement results of Group 1 were compared with Group 2, and differences among groups and groups were analyzed. The test method was tested with the Independent t-test and Paired t-test.RESULTS Group 1 showed a significant reduction (p&lt;0.04) in the distance between the 7th cervical spine and gravity line, showing an improvement in cervical alignment. In the static equilibrium, the significant difference that was measured beforehand disappeared and the sum of deflection decreased. The dynamic balance did not disappear significantly but the balance ability improved as the sum of deflection decreased.CONCLUSIONS The cervical alignment deformation affects the balance ability. A combination of cervical alignment correction and exercise to increase the flexibility of the shoulder and neck muscles were performed. As a result, it was a factor in improving the static balance and dynamic balance ability of the left and right sides of the cervical spine.

Relationships between balance and physical fitness variables in firefighter recruits.

Research has suggested that balance ability contributes to musculoskeletal injury (MSKI) rates in firefighters. Though the Y-Balance Test (YBT) can predict injury, it is unclear what physical measures inform YBT performance in firefighters. Thus, there is a lack of knowledge regarding best practice for improving balance in firefighters. To evaluate the relationship between the YBT and fitness measures, including body composition, aerobic capacity, functional total-body power, upper and lower-body strength, and movement efficiency, among firefighters. Dynamic balance (YBT), body mass index (BMI), body-fat percentage (BF%), fat free mass (FFM), aerobic capacity (VO2max), stair climb (SC), upper (1RMbench) and lower-body (1RMsquat) strength, and Fusionetics™ Movement Efficiency Screen (ME) measures were collected among 35 firefighter recruits. Pearson correlation coefficients were used to examine relationships between YBT and the performance measures. Dynamic balance ability in firefighter recruits is significantly (p < 0.05) related to BMI, lower-body strength, and movement quality, but not with aerobic capacity, stair climb performance, and upper body strength. Greater YBT performance in firefighter recruits is associated with lower BMI, greater functional movement, and greater lower-body strength. Future research is warranted to incorporate these elements into balance training programs for firefighter recruits.

Dynamic balance ability in single-leg drop jump landing in junior female athletes after shin splints-assessment from a preventive perspective.

[Purpose] To develop assessment/rehabilitation indices for prevention of chronic and recurrent shin splint injuries among sport athletes, we analyzed the plantar center of pressure trajectories after drop-jump landing on one leg, and compared the foot function on the injured and healthy sides. [Participants and Methods] The participants were 10 female athletes who received consultation at our facility due to shin splints of the lower leg. The exercise task was the “single-leg drop jump landing test”, in which the participants maintained a static posture on one leg for 8 s after landing. Using the collected data, the peak value of the vertical component of the floor-reaction force at the landing and the rectangular areas at 20–200 ms and 1–5 s after landing were calculated and compared between the healthy and affected sides. [Results] The peak value of the vertical component and the rectangular area at 20–200-ms were significantly larger on the affected side. However, the value for the 1–5-s rectangular area was significantly larger on the healthy side. [Conclusion] The feedforward function may have been reduced on the affected side in comparison with that on the healthy side, and the reduction in dynamic balance early after landing may have increased the influence of the non-vertical component. The 1–5-s rectangular area was smaller on the affected side than that on the healthy side, suggesting that the feedback function excessively worked on the affected side and caused immobility by excessively locking the joint in single-leg balance and reducing body sway.

Effect of Ankle Proprioceptive Training on Preventing Ankle Injury of Martial Arts Players

The ankle joint is an important weighted joint of the human body, and it is very easy to sprain in daily sports and life. Furthermore, functional ankle instability can be easily caused by an acute sprain of the ankle, which increases the risk of re-spraining. In view of this, this article summarizes and analyzes the literature on rehabilitation treatment of functional ankle instability, and explores the effect of proprioceptive training of ankle joints on the prevention of ankle injury in martial arts. This article selects a university martial arts team as the research object, and randomly divides them into 5 male and female experimental groups and 5 control groups. The experimental group received ankle muscle strength training, and the control group received ankle muscle strength training and ankle proprioception training. The dynamic balance system was used to perform balance tests before and after training in all control groups and experimental groups. After training, it has a significant effect on the average direction control ability, forward and left direction control ability, the value after training significantly increases, and the P values are 0.017, 0.032, and 0.043, respectively. The experiments in this paper show that both ankle muscle strength training and ankle joint proprioceptive training combined with muscle strength training can improve the dynamic and static balance ability of martial arts players; moreover, the combination of the two training combined to improve the balance ability is more significant and can effectively prevent the ankle joint the appearance of damage.