scholarly journals Postural Adaptations in Preadolescent Karate Athletes Due to a One Week Karate Training Camp

2013 ◽  
Vol 38 ◽  
pp. 45-52 ◽  
Author(s):  
Stefano Vando ◽  
Davide Filingeri ◽  
Lucio Maurino ◽  
Helmi Chaabène ◽  
Antonino Bianco ◽  
...  
Keyword(s):  
Postural Sway ◽  
Center Of Pressure ◽  
Dynamic Balance ◽  
Training Intervention ◽  
Control Group ◽  
Young Athletes ◽  
Experimental Conditions ◽  
Body Balance ◽  
Static Body ◽  
Karate Athletes

Abstract The aim of this study was to investigate the effect of an increasing number of training hours of specific highintensity karate training on postural sway in preadolescent karate athletes. Seventy-four karatekas were randomly assigned to 1 of 2 groups: Karate Group (KG=37): age 10.29±1.68 yrs; or Control Group (CG= 37): age 10.06±1.77 yrs. The KG performed two sessions per day for 1 week in total, while the CG performed only 3 sessions during the same period. The center-of-pressure length (COPL) and velocity (COPV) were recorded under four different experimental conditions: open eyes (EO), closed eyes (EC), open eyes monopodalic left (EOL), open eyes monopodalic right (EOR), pre as well as post training intervention. Post-camp results indicated significant differences between the groups in the COPL p<0.001; an interaction of training type×time in the COPV (p<0.001) and an interaction of training type×time (p=0.020). The KG revealed an improvement in the COPL from pre to post-camp under conditions of EO [-37.26% (p<0.001)], EC [-31.72% (p<0.001)], EOL [-27.27% (p<0.001)], EOR [-21.44% (p<0.001)], while CG revealed small adaptations in conditions of EO (3.16%), EC (0.93%), EOL (-3.03%), EOR (-0.97%). Furthermore, in the KG an improvement in the COPV from pre to post-camp was observed in conditions of EO [-37.92% (p<0.001)], EC [-32.52% (p<0.001)], EOL [-29.11% (p<0.001)], EOR [-21.49% (p<0.001)]. In summary, one-week of high intensity karate training induced a significant improvement in static body balance in preadolescent karate athletes. Karate performance requires high-levels of both static and dynamic balance. Further research dealing with the effect of karate practice on dynamic body balance in young athletes is required.

scholarly journals Application of Real-Time Visual Feedback System in Balance Training of the Center of Pressure with Smart Wearable Devices

2020 ◽  
Author(s):  
I-Lin Wang ◽  
Li-I Wang ◽  
Yang Liu ◽  
Shi-Jie Xue ◽  
Rui Hu ◽  
...  
Keyword(s):  
Real Time ◽  
Visual Feedback ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Balance Training ◽  
Training Group ◽  
Wearable Devices ◽  
Control Group ◽  
Feedback Training ◽  
Smart Wearable

Abstract Background: Visual feedback from the center of pressure (COP) on the benefits of standing quietly remains controversial. The study was to investigate the adaptive effect of COP real-time visual feedback training provided by smart wearable devices on standing in silence. Methods: Thirty healthy female college students were randomly divided into three groups (visual feedback balance training group (VFT), non-visual feedback balance training group (NVFT) and control group (CG)) .Two force plates were used to calculate the coordinates of COP anteroposterior (COPAP) and COP mediolateral (COPML).The motion analysis system is used to calculate the coordinates of the center of mass in two directions. Enhanced visual feedback on the screen in the form of fluctuating in different directions, VFT received real-time visual feedback from Podoon APP for training, the NVFT only performs open eye balance without receiving real-time visual feedback. The CG group did not receive any visual feedback. The training lasted 4 weeks, the training lasts 30 minutes at an interval of 1 days. Results: After four weeks of balance training, the results showed that visual feedback training can improve the stability of human posture control by one leg stance and tandem stance static balance training on VFT intelligent App. The parameters of COPML/AP max displacement, COPML/AP velocity and COP radius and COP area in the VFT were significantly increased (p＜0.05).Conclusion: The conclusion shows that COP real-time visual feedback training provided by smart wearable devices can reduce postural sway better and improve body balance ability than general training when standing quietly.

Effect of Tai Chi on Body Balance: Randomized Controlled Trial in Elderly Men with Dizziness

2012 ◽  
Vol 40 (02) ◽  
pp. 245-253 ◽  
Author(s):  
Janusz Maciaszek ◽  
Wieslaw Osinski
Keyword(s):  
Tai Chi ◽  
Exercise Intervention ◽  
Dynamic Balance ◽  
Controlled Trial ◽  
Control Group ◽  
Elderly Men ◽  
Body Balance ◽  
Fall Risk Factors ◽  
Community Information ◽  
Military Institute

The purpose of this study was to assess the effect of 18-week Tai Chi training on body balance in a dynamic trial among elderly men with dizziness. The study covered subjects aged 60 to 80 years. We identified 40 men who reported a history of dizziness. The subjects were recruited using direct mailings and a community information campaign. The participants were randomly assigned to either the exercise intervention (n = 20) or control group (n = 20). The Tai Chi group participated in an 18-week exercise class held for 45 minutes twice a week. Body balance was studied in two ways: using the "8 foot up and go test" (Rikli and Jones 2001) and using a Computer Posturographic System PE 90 (manufactured by Military Institute of Aviation Medicine in Warsaw and outfitted with Pro-Med modified software). The ability to perform specific tasks (maximal deflections in four directions) was measured on the posturographic platform. The variation in results obtained on the first and second date of tests in the experimental and control groups was confirmed statistically using four parameters, i.e. "8 foot up to and go test ( H = 8.21;p = 0.003), forward deflection ( H = 3.70;p = 0.050), backward deflection ( H = 5.04;p = 0.024) and maximum sway area ( H = 8.86;p = 0.002). Consequently, we found that the 18-week period of Tai-Chi exercises, with a frequency of twice a week for 45 minutes, is beneficial for dynamic balance, which is important for the reduction of fall risk factors among elderly men with dizziness.

scholarly journals Severe Dizziness Related to Postural Instability, Changes in Gait and Cognitive Skills in Patients with Chronic Peripheral Vestibulopathy

2019 ◽  
Vol 24 (01) ◽  
pp. e99-e106 ◽  
Author(s):  
Almir Resende Coelho ◽  
Júlia Licursi Lambertti Perobelli ◽  
Lilian Shizuka Sonobe ◽  
Renato Moraes ◽  
Camila Giacomo de Carneiro Barros ◽  
...  
Keyword(s):  
Cognitive Skills ◽  
Elderly Women ◽  
Center Of Pressure ◽  
Dynamic Balance ◽  
Step Length ◽  
Control Group ◽  
Vestibular Disorders ◽  
Cognitive Assessments ◽  
Cognitive Balance ◽  
Peripheral Vestibulopathy

Abstract Introduction Peripheral vestibular disorders can lead to cognitive deficits and are more common in elderly patients. Objective To evaluate and correlate cognitive, balance and gait aspects in elderly women with chronic peripheral vestibular dizziness, and to compare them with elderly women without vestibular disorders. Methods Twenty-two women presenting peripheral vestibular dizziness episodes for at least six months participated in the study. The individuals were categorized by dizziness severity level: moderate (n = 11) or severe (n = 11). The control group (n = 11) included women showing no vestibulopathy, light-headedness or dizziness. Cognitive assessments and semi-static and dynamic balance assessments were performed with the Balance Master (Neurocom International, Inc., Clackamas, OR), while the Dizziness Handicap Inventory provided a score for the severity of the symptoms. The groups were submitted to statistics of inference and correlation between cognitive, balance and stability variables. Results The group with severe dizziness showed higher sway speed of the center of pressure in the anteroposterior direction, smaller step length, and slower gait than the control group. Regarding the cognitive variables, the group with severe dizziness symptoms presented significant correlations with stability and gait variables. Conclusion The relationship between cognitive aspects, balance and gait was stronger in women with severe dizziness than in those with no vestibulopathy.

scholarly journals Influence of aquatic exercise training on balance in young adults

2014 ◽  
Vol 27 (4) ◽  
pp. 573-581
Author(s):  
Luana Mann ◽  
Julio Francisco Kleinpaul ◽  
Carlos Bolli Mota ◽  
Saray Giovana dos Santos
Keyword(s):  
Visual Information ◽  
Center Of Pressure ◽  
Exercise Program ◽  
Aquatic Exercise ◽  
Control Group ◽  
Healthy Young Adult ◽  
Body Balance ◽  
Balance Deficits ◽  
Adult Volunteers ◽  
Experimental Group

Introduction Physical exercise programs have been suggested to soften or reverse balance deficits and postural deviation. Objective This study investigated the influence of a systematic aquatic exercise program on body balance. Method Healthy young adult volunteers of both genders, aged 18–30 years were assessed. The experimental group (EG, n = 20) was subjected to 24 sessions of aquatic exercises of 50 minutes long, performed three times a week, and the control group (CG, n = 25) suffered no intervention. A 3-D force platform was used to calculate the center of pressure displacement (COP) in anteroposterior and mid-lateral directions with or without visual information. The individuals were assessed in pre or post-training. Results The results demonstrated a decrease in body oscillation in both visual conditions, with post-training values lower than pre-training ones. Visual information was not expressive for EG post-training. Conclusion It was concluded that the program was effective for body balance improvement.

Effects of a core stabilization training program on balance ability in persons with Parkinson’s disease: a randomized controlled trial

2020 ◽  
Vol 34 (6) ◽  
pp. 764-772
Author(s):  
Irene Cabrera-Martos ◽  
Ana Teresa Jiménez-Martín ◽  
Laura López-López ◽  
Janet Rodríguez-Torres ◽  
Araceli Ortiz-Rubio ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Center Of Pressure ◽  
Dynamic Balance ◽  
Controlled Trial ◽  
Core Stability ◽  
Control Group ◽  
Balance Confidence ◽  
Balance Ability ◽  
Experimental Group

Objective: To explore the effects of an eight-week core stability program on balance ability in persons with Parkinson’s disease. Design: Randomized controlled trial. Setting: A local Parkinson’s association. Subjects: A total of 44 participants with a clinical diagnosis of Parkinson’s disease were randomly assigned to an experimental ( n = 22) or control group ( n = 22). Intervention: The experimental group received 24 sessions of core training, while the control group received an intervention including active joint mobilization, muscle stretching, and motor coordination exercises. Main measures: The primary outcome measure was dynamic balance evaluated using the Mini-Balance Evaluation Systems Test. Secondary outcomes included the balance confidence assessed with the Activities-specific Balance Confidence Scale and standing balance assessed by the maximal excursion of center of pressure during the Modified Clinical Test of Sensory Interaction on Balance and the Limits of Stability test. Results: After treatment, a significant between-group improvement in dynamic balance was observed in the experimental group compared to the control group (change, 2.75 ± 1.80 vs 0.38 ± 2.15, P = 0.002). The experimental group also showed a significant improvement in confidence (change, 16.48 ± 16.21 vs 3.05 ± 13.53, P = 0.047) and maximal excursion of center of pressure in forward (change, 0.86 ± 1.89 cm vs 0.17 ± 0.26 cm, P = 0.048), left (change, 0.88 ± 2.63 cm vs 0.07 ± 0.48 cm, P = 0.010), and right (change, 1.63 ± 2.82 cm vs 0.05 ± 0.17 cm, P = 0.046) directions of limits of stability compared to the control group. Conclusion: A program based on core stability in comparison with non-specific exercise benefits dynamic balance and confidence and increases center of mass excursion in patients with Parkinson’s disease.

scholarly journals Effects of a multimodal physical exercise program on physical and mental health indicators in males with substance use disorder

2021 ◽  
Vol 46 ◽  
pp. e021208
Author(s):  
Bruno Marson Malagodi ◽  
Márcia Greguol ◽  
Attilio Carraro ◽  
Timothy Gustavo Cavazzotto ◽  
Helio Serassuelo Junior
Keyword(s):  
Substance Use ◽  
Physical Exercise ◽  
Physical Fitness ◽  
Substance Use Disorder ◽  
Center Of Pressure ◽  
Intervention Group ◽  
Exercise Program ◽  
Control Group ◽  
Internalized Stigma ◽  
Body Balance

Introduction: Substance use disorder (SUD) is seen as a serious and growing public safety and health problem worldwide. Long-term sequelae may involve permanent damage to physical fitness, body balance, and coordination skills, with a severe motor, functional, and emotional consequences. Objective: To verify the effect of 16 sessions of a multimodal physical exercise program on physical fitness, body balance, and internalized stigma of inpatients for the treatment of Substance use disorder. Methods: Forty-three males with Substance use disorder (aged 33.9 ±12.4 years) were divided into an Intervention Group (IG, n=21) and Control Group (CG, n=22). The IG was submitted to eight weeks of training with physical exercises. Participants were submitted to the evaluation of internalized stigma, body balance, agility, and flexibility, before and after the intervention period. Results: Positive results were observed in physical fitness (agility, p=0.001) and body balance variables (center of pressure path with closed eyes, p=0.050, and ellipse area with closed eyes, p=0.031). The time of substance use correlated with lower performance in agility and body balance tests. Conclusion: The data seem to support the potential benefit of physical exercise as an adjunct in Substance use disorder rehabilitation process, particularly for physical fitness and body balance variables.

scholarly journals Balance Markers and Saccadic Eye-Movement Measures in Adolescents With Postconcussion Syndrome

2020 ◽  
Vol 55 (5) ◽  
pp. 475-481 ◽  
Author(s):  
Coralie Rochefort ◽  
Elizabeth Legace ◽  
Chadwick Boulay ◽  
Gail Macartney ◽  
Kristian Goulet ◽  
...  
Keyword(s):  
Eye Movements ◽  
Cognitive Load ◽  
Effect Size ◽  
Dual Task ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Saccadic Eye Movements ◽  
Control Group ◽  
Oculomotor Function ◽  
Anterior Posterior

Context Deficits in both balance and oculomotor function, including impairments in saccadic eye movements, are observed in approximately 30% of patients postconcussion. Whereas balance and saccadic eye movements are routinely assessed separately, growing evidence suggests that they should be assessed concurrently. Objective To compare balance measures and saccades between adolescents 1 to 3 months postconcussion and healthy uninjured adolescents. Design Case-control study. Setting Concussion clinic and 2 private schools. Patients or Other Participants Twenty-five adolescents (10 boys, 15 girls; median [interquartile range (IQR)] age = 14 years [11.5–16 years]) between 1 and 3 months postconcussion (median [IQR] time since injury = 39.5 days [30–56.75 days]) and 33 uninjured adolescents (18 boys, 15 girls; median [IQR] age = 13 years [11.5–14 years]). Main Outcome Measure(s) The center-of-pressure 95% ellipse area and medial-lateral and anterior-posterior velocity and the number of saccades in the dual-task balance conditions including a high cognitive load (cognitive condition), a low cognitive load and a gaze-shifting component (visual condition) or both a high cognitive load and a gaze-shifting component (combined condition). Results Concussion-group participants swayed over larger center-of-pressure ellipse areas in the visual (P = .02; effect size = 0.73) and combined (P = .005; effect size = 0.86) conditions but not in the cognitive condition (P = .07; effect size = 0.50). No group differences were identified for anterior-posterior (F1,56 = 2.57, P = .12) or medial-lateral (F1,56 = 0.157, P = .69) velocity. Concussion-group participants also did not perform more saccades than the control-group participants (F1,56 = 2.04, P = .16). Conclusions Performing dual-task balance conditions for which the secondary task involved a gaze-shifting component or both a gaze-shifting component and a high cognitive load resulted in greater sway amplitude in adolescents with concussion. However, these larger amounts of postural sway were not associated with increased saccadic eye movements.

scholarly journals Acute effects of contract-relax proprioceptive neuromuscular facilitation stretching of hip abductors and adductors on dynamic balance

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e6108 ◽  
Author(s):  
Rafał Szafraniec ◽  
Krystyna Chromik ◽  
Amanda Poborska ◽  
Adam Kawczyński
Keyword(s):  
Single Dose ◽  
Balance Control ◽  
Dynamic Balance ◽  
Intervention Group ◽  
Control Group ◽  
Body Balance ◽  
Golgi Tendon Organs ◽  
Increased Risk ◽  
Proprioceptive Neuromuscular Facilitation ◽  
The Impact

Background Balance control has been shown to play a fundamental role both in everyday life and many athletic activities. An important component of balance control is the somatosensory information gained from muscle spindles and Golgi tendon organs. The changes in the muscle-tendon unit stiffness could alter the ability to detect and respond promptly to changes of an unstable environment. One of the procedures affecting muscle stiffness is stretching, and contract-relax PNF stretching (CRS) is considered as one of the safest and most effective techniques. So far, there are no studies on the impact of CRS of hip adductor and abductor muscles on body balance. These muscle groups are responsible for maintaining mediolateral balance which is of particular interest, since it is more affected by ageing and disease and since its deterioration has been associated with an increased risk of falling. In light of the above, the aim of the present study was to investigate the effects of a single dose of contract-relax proprioceptive neuromuscular facilitation stretching of hip adductors and abductors on mediolateral dynamic balance. Methods The study involved 45 healthy individuals (age 19–23 years) assigned to the intervention group (IG) or the control group (CG). Balance testing was carried out before (Pre) and immediately after CRS in the intervention group or after 5-minute rest in the control group (Post). There were performed three repetitions of the CRS targeting the adductor and abductor muscles of the hip. Results Statistically significant differences between Pre and Post condition were observed only in the intervention group. The values of all measured variables defining the body’s dynamic balance were significantly lower immediately after the applied CRS, which indicates an improved body balance: Global Index (p = 0.0001), total area of sway (p = 0.0001), external area of sway (p = 0.00004), external time (p = 0.0004) and reaction time (p = 0.0003). Conclusions A single dose of contract-relax proprioceptive neuromuscular facilitation stretching of the hip adductor and abductor muscles improved mediolateral dynamic balance.

scholarly journals Postural control in top-level female volleyball players

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Dorota Borzucka ◽  
Krzysztof Kręcisz ◽  
Zbigniew Rektor ◽  
Michał Kuczyński
Keyword(s):  
Postural Control ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Balance Control ◽  
Sampling Rate ◽  
Force Plate ◽  
Peak Frequency ◽  
Control Group ◽  
Mean Velocity ◽  
Volleyball Players

Abstract Background The aim of this study was to compare the postural control of the Poland national women’s volleyball team players with a control group of non-training young women. It was hypothesized that volleyball players use a specific balance control strategy due to the high motor requirements of their team sport. Methods Static postural sway variables were measured in 31 athletes and 31 non-training women. Participants were standing on a force plate with eyes open, and their center of pressure signals were recorded for the 20s with the sampling rate of 20 Hz in the medial-lateral (ML) and anterior-posterior (AP) planes. Results In both AP and ML planes, athletes had lower range and higher fractal dimension of the COP. They had also higher peak frequency than control group in the ML plane only. The remaining COP indices including variability, mean velocity and mean frequency did not display any intergroup differences. Conclusion It can be assumed that due to the high motor requirements of their sport discipline Polish female volleyball players have developed a unique posture control. On the court they have to distribute their sensory resources optimally between balance control and actions resulting from the specifics of the volleyball game. There are no clearly defined criteria for optimal postural strategies for elite athletes, but they rather vary depending on a given sport. The results of our research confirm this claim. Trial registration The tests were previously approved by the Bioethical Commission of the Chamber of Physicians in Opole. (Resolution No. 151/13.12.2007). This study adheres to the CONSORT guidelines.

scholarly journals Single-Legged Hop and Single-Legged Squat Balance Performance in Recreational Athletes With a History of Concussion

2020 ◽  
Vol 55 (5) ◽  
pp. 488-493 ◽  
Author(s):  
Robert C. Lynall ◽  
Kody R. Campbell ◽  
Timothy C. Mauntel ◽  
J. Troy Blackburn ◽  
Jason P. Mihalik
Keyword(s):  
Injury Risk ◽  
Center Of Pressure ◽  
Balance Control ◽  
Dynamic Balance ◽  
Reaction Force ◽  
Force Plate ◽  
Analysis Of Covariance ◽  
Control Group ◽  
Time To Stabilization ◽  
History Of

Context Researchers have suggested that balance deficiencies may linger during functional activities after concussion recovery. Objective To determine whether participants with a history of concussion demonstrated dynamic balance deficits as compared with control participants during single-legged hops and single-legged squats. Design Cross-sectional study. Setting Laboratory. Patients or Other Participants A total of 15 previously concussed participants (6 men, 9 women; age = 19.7 ± 0.9 years, height = 169.2 ± 9.4 cm, mass = 66.0 ± 12.8 kg, median time since concussion = 126 days [range = 28–432 days]) were matched with 15 control participants (6 men, 9 women; age = 19.7 ± 1.6 years, height = 172.3 ± 10.8 cm, mass = 71.0 ± 10.4 kg). Intervention(s) During single-legged hops, participants jumped off a 30-cm box placed at 50% of their height behind a force plate, landed on a single limb, and attempted to achieve a stable position as quickly as possible. Participants performed single-legged squats while standing on a force plate. Main Outcome Measure(s) Time to stabilization (TTS; time for the normalized ground reaction force to stabilize after landing) was calculated during the single-legged hop, and center-of-pressure path and speed were calculated during single-legged squats. Groups were compared using analysis of covariance, controlling for average days since concussion. Results The concussion group demonstrated a longer TTS than the control group during the single-legged hop on the nondominant leg (mean difference = 0.35 seconds [95% confidence interval = 0.04, 0.64]; F2,27 = 5.69, P = .02). No TTS differences were observed for the dominant leg (F2,27 = 0.64, P = .43). No group differences were present for the single-legged squat on either leg (P ≥ .11). Conclusions Dynamic balance-control deficits after concussion may contribute to an increased musculoskeletal injury risk. Given our findings, we suggest that neuromuscular deficits currently not assessed after concussion may linger. Time to stabilization is a clinically applicable measure that has been used to distinguish patients with various pathologic conditions, such as chronic ankle instability and anterior cruciate ligament reconstruction, from healthy control participants. Whereas the single-legged squat may not sufficiently challenge balance control, future study of the more dynamic single-legged hop is needed to determine its potential diagnostic and prognostic value after concussion.

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