scholarly journals Effect of Plyometric versus Ankle Stability Exercises on Lower Limb Biomechanics in Taekwondo Demonstration Athletes with Functional Ankle Instability

2020 ◽  
Vol 17 (10) ◽  
pp. 3665
Author(s):  
Ha Min Lee ◽  
Seunghue Oh ◽  
Jung Won Kwon
Keyword(s):  
Kinetic Parameters ◽  
Lower Limb ◽  
Ankle Instability ◽  
Dynamic Balance ◽  
Exercise Group ◽  
T Test ◽  
Functional Ankle Instability ◽  
Shock Absorption ◽  
Ankle Stability ◽  
Plyometric Exercise

Background: This study aimed to compare the effects of plyometric and ankle stability exercises on the dynamic balance and lower limb kinematic and kinetic parameters of Taekwondo demonstration athletes with functional ankle instability. Methods: Fourteen subjects participated in this study and were randomly divided into two groups: a plyometric exercise group (n = 7) and an ankle stability exercise group (n = 7). Exercises were performed twice a week for 8 weeks. A Y-balance test was used to measure dynamic balance, and a motion analysis system and force plate were used to collect kinematic and kinetic parameters during single-leg drop landing. A paired t-test was used for intragroup comparisons, and an independent t-test was used for intergroup comparisons. Results: In both groups, exercise increased dynamic balance and shock absorption and reduced postural sway on the anteroposterior displacement (p < 0.05). The plyometric exercise group decreased their ankle dorsiflexion and increased their knee and hip joint flexion at maximum knee flexion (p < 0.05). In contrast, the stability exercise increased their ankle plantar flexion at initial contact (p < 0.05). Conclusions: The plyometric exercise group altered their landing strategies using their knee and hip joints to control ankle instability at landing. This study suggests that the application of plyometric exercises in ankle rehabilitation would improve stability and shock absorption and help prevent injuries during Taekwondo demonstrations.

scholarly journals The Effect of 8 Weeks Virtual Reality Training on Static and Dynamic Balance and Performance in Male Athletes With Functional Ankle Instabilit

2021 ◽  
Vol 11 (1) ◽  
pp. 45-54
Author(s):  
Farhad Ranjbarzadeh Yamchi ◽  
◽  
Amir Letafatkar ◽  
Saeed Esmaeilpour ◽  
◽  
...  
Keyword(s):  
Virtual Reality ◽  
Ankle Instability ◽  
Dynamic Balance ◽  
T Test ◽  
Virtual Reality Training ◽  
Functional Ankle Instability ◽  
Male Athletes ◽  
Post Test ◽  
And Performance ◽  
Paired T Test

Purpose: The purpose of this study is to investigate the effect of 8 weeks virtual reality training on static and dynamic balance and performance of in male athletes with functional ankle instability Methods: or this research, 30 volleyball, basketball, football and handball players ranged from 18 to 25 years were selected purposefully from Tehran province league male athletes based on inclusion and Exclusion criteria. Then Subjects were randomly divided into two groups included 15 subjects of virtual reality exercises and control group. After a 5 minute warm-up program, the static and dynamic balance and performance were measured by stork test, y balance test and side jump and triple jump test respectively. Then, training group completed an 8-week (24 sessions) exercise program. Finally, after completing the training protocol, a similar post-test with pre-test was done. To test and analyze datum, also analysis, paired t-test and ANCOVA statistical method was used. Results: Paired t-test and analysis of covariance showed that there was a significant difference in all variables in the post-test compared to the pre-test and also between the two groups (05.0>p).The balance of subjects and their performance in the experimental group was improved Conclusion: The 8 weeks of virtual reality training significantly improve balance and performance of male with functional ankle instability; therefore coaches and athletes can use this exercises to improve balance and performance in athletes with functional ankle instability.

scholarly journals Hip Flexibility and Dynamic Balance Ability in Soccer Players with Functional Ankle Instability

Trauma Care ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 206-214
Author(s):  
Akihiro Tamura ◽  
Keita Shimura ◽  
Yuri Inoue
Keyword(s):  
Ankle Instability ◽  
Dynamic Balance ◽  
Soccer Players ◽  
Future Research ◽  
Functional Ankle Instability ◽  
Balance Test ◽  
Hip Range Of Motion ◽  
Balance Ability ◽  
Hip Internal Rotation ◽  
Control Study

The prevention of recurrent ankle sprain and functional ankle instability in soccer players is essential. This study clarified hip joint mobility and dynamic balance ability in soccer players with functional ankle instability. This case–control study included 17 male college soccer players. All participants were assessed using the Cumberland Ankle Instability Tool and were divided into chronic ankle instability (CAI) and non-CAI groups for each of their dominant and nondominant legs. Bilateral passive hip range of motion (ROM) was assessed and the modified Star Excursion Balance Test (mSEBT) was measured for each leg. In the dominant leg, the reach in the posterolateral direction in the CAI group was significantly less than that in the non-CAI group. Hip internal rotation angles in the dominant leg in the CAI group were greater than those in the non-CAI group; however, no significant correlations with the three directions of mSEBT were observed. In the nondominant leg, mSEBT and hip ROMs did not show any significant differences between groups. The dominant leg in soccer players with CAI had poor dynamic balance ability while reaching posterolaterally. However, acquiring hip flexibility may not be necessary to improve the dynamic balance ability. These findings may help develop future research.

scholarly journals Effect of a Four-week Core Stability Training Program on the Kinetic Parameters in Athletes With Functional Ankle Instability During Single-leg Drop Landing

2020 ◽  
Vol 11 (1) ◽  
pp. 33-42
Author(s):  
Narges Pirmohammadi ◽  
◽  
Elham Shirzad ◽  
Hooman Minounejad ◽  
◽  
...  
Keyword(s):  
Kinetic Parameters ◽  
Ankle Instability ◽  
Core Stability ◽  
Analysis Of Covariance ◽  
Functional Ankle Instability ◽  
Drop Landing ◽  
Post Test ◽  
Stability Training ◽  
And Control ◽  
Experimental Group

Introduction: This study aimed to investigate the effect of a 4-week core stability training program on landing kinetic parameters in athletes with functional ankle instability during a single-leg drop landing exercise. Methods: This study used a pre-post quasi-experimental design and was conducted in the biomechanics laboratory. A total number of 24 athletes with functional ankle instability participated in two experimental (n=12) and control (n=12) groups. The experimental group performed core stability training for 4 weeks. The kinetic variables (maximum vertical Ground-Reaction Force [GRF], maximum shear GRF, and time to peak vertical GRF) were measured with force plate at the frequency of 400 Hz, in the pre-test and post-test. The obtained data were compared using Analysis of Covariance (ANCOVA) and multivariate analysis of covariance MANCOVA in SPSS V. 18. Results: In the experimental group, all variables significantly differ between the pre-test and post-test. Also, the ANCOVA and MANCOVA indicated significant differences between the experimental and control groups in all variables. Conclusion: The results indicated that the core stability training improved the kinetic parameters of landing in people with functional ankle instability; thus, it can reduce the re-injury risk of the ankle.

scholarly journals Effect of 12 Weeks of Core Stability Exercises on Functional Movement and Balance of Women Working in Hospitals

2021 ◽  
Vol 7 (2) ◽  
pp. 122-135
Author(s):  
Maryam Golmoradi Marani ◽  
◽  
Mahdi Khalegi ◽  
Aezam Ahmadi ◽  
Seyyedeh Fatemeh Alavi ◽  
...  
Keyword(s):  
Dynamic Balance ◽  
Group Analysis ◽  
Exercise Group ◽  
T Test ◽  
Core Stability ◽  
Analysis Of Covariance ◽  
Balance Test ◽  
Functional Movement ◽  
Jump Test ◽  
Muscle Balance

Objective: This study aims to assess the effect of 12 weeks of core stability exercises on functional movement and balance of women working in hospitals. Methods: Participants were 34 women aged 30-50 years working in Imam Khomeini Hospital in Tehran, Iran. They were randomly divided into two groups of exercise and control. The exercise group performed core stability exercises for 12 weeks. The functional movement was evaluated using the valid Function Movement Screen (FMS) method. The dynamic balance, power, agility, speed and flexibility of subjects were also measured using Y balance test, Sargent Jump Test, agility T-test, 20-meter running test, and seated bending forward test, respectively before and after exercise. Paired T-test was used to examine the difference between pre- and post-test scores of each group. Analysis of Covariance (ANCOVA) was used to determine the effect of intervention on the study variables. Results: Results of ANCOVA showed that 12 weeks of core stability exercises significantly improved functional movement performance, dynamic balance, power, agility, speed and flexibility in women. Conclusion: Core stability exercises can improve the performance of neuromuscular system leading to proper movement of spinal, pelvic and hip joints, proper muscle balance, enhanced proximal stability, functional strength and resulting in decreased injury.

Acute Effect of Ankle Kinesio™ Taping on Lower-Limb Biomechanics During Single-Legged Drop Landing

2020 ◽  
pp. 1-8
Author(s):  
Javad Sarvestan ◽  
Alan R. Needle ◽  
Peyman Aghaie Ataabadi ◽  
Zuzana Kovačíková ◽  
Zdeneˇk Svoboda ◽  
...  
Keyword(s):  
Lower Limb ◽  
Muscle Activity ◽  
College Athletes ◽  
Ankle Instability ◽  
Dynamic Balance ◽  
Chronic Ankle Instability ◽  
Medial Gastrocnemius ◽  
Ground Contact ◽  
Lateral Gastrocnemius ◽  
Peroneus Longus

Context: Chronic ankle instability is documented to be followed by a recurrence of giving away episodes due to impairments in mechanical support. The application of ankle Kinesiotaping (KT) as a therapeutic intervention has been increasingly raised among athletes and physiotherapists. Objectives: This study aimed to investigate the impacts of ankle KT on the lower-limb kinematics, kinetics, dynamic balance, and muscle activity of college athletes with chronic ankle instability. Design: A crossover study design. Participants: Twenty-eight college athletes with chronic ankle sprain (11 females and 17 males, 23.46 [2.65] y, 175.36 [11.49] cm, 70.12 [14.11] kg) participated in this study. Setting: The participants executed 3 single-leg drop landings under nontaped and ankle Kinesio-taped conditions. Ankle, knee, and hip kinematics, kinetics, and dynamic balance status and the lateral gastrocnemius, medial gastrocnemius, tibialis anterior, and peroneus longus muscle activity were recorded and analyzed. Results: The application of ankle KT decreased ankle joint range of motion (P = .039) and angular velocities (P = .044) in the sagittal plane, ground reaction force rate of loading (P = .019), and mediolateral time to stability (P = .035). The lateral gastrocnemius (0.002) and peroneus longus (0.046) activity amplitudes also experienced a significant decrease after initial ground contact when the participants’ ankles were taped, while the application of ankle KT resulted in an increase in the peroneus longus (0.014) activity amplitudes before initial ground contact. Conclusions: Ankle lateral supports provided by KT potentially decreases mechanical stresses applied to the lower limbs, aids in dynamic balance, and lowers calf muscle energy consumption; therefore, it could be offered as a suitable supportive means for acute usage in athletes with chronic ankle instability.

scholarly journals Comparative Study of Wobble Board and Bosu Ball along with Strength Training on Lower Limb Strength, Dynamic Balance, Agility and Functional Performance of Runners with Lateral Ankle Instability

2021 ◽  
Author(s):  
. Roshni ◽  
Sheetal Kalra ◽  
Sajjan Pal ◽  
Sonia Pawaria ◽  
Joginder Yadav
Keyword(s):  
Muscle Strength ◽  
Strength Training ◽  
Functional Performance ◽  
Ankle Instability ◽  
Dynamic Balance ◽  
T Test ◽  
Subjective Feeling ◽  
Sensorimotor Training ◽  
Balance Test ◽  
Hop Test

Introduction: Chronic ankle instability (CAI) is characterised by a subjective feeling of recurrent instability, continuedepisode of giving way and self-reported disability. A wealth of literature is available reporting causes and risk factors related to CAI,still thereis a lack of understanding regarding rehabilitation procedures. Aim: To compare effect of BOSU ball and wobble board along with strength training on muscle strength, dynamic balance, agility and functional performance in recreational runners with CAI. Materials and Methods: It was an experimental study design conducted at Physiotherapy OPD of SGT Hospital, Gurugram. Data collection was done from July 2019 till October 2019. Analysis and report writing took 2 months i.e from November 2019 till December 2019. 60 male runners in the age group of 18-35 years with CAI were randomly divided into two groups i.e. A (Wobble board) and B (BOSU Ball) with 30 players in each group. All subjects were evaluated for ankle muscle strength, agility, dynamic balance and functional performance as measured by Manual muscle tester, T-test, Y balance test and figure of eight hop test respectively on day one and last day of 3rd and 6th week of intervention. SPSS software version 20.0 was used to analyse result. Mean and Standard deviations were calculated. ANOVA and Student T test was used for analysing inter group differences. Results: The statistical findings in this study postulate that both groups had significantly improved fitness and skill related variables but BOSU ball group showed highly significant improvement compared to wobble board group (p<0.05). Conclusion: The current results support that sensorimotor training can be progressed in difficulty by systematically reducing the base of support with help of BOSU ball.

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