The effect of a balance training programme on centre of pressure excursion in one-leg stance (original) (raw)
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Objective: The purpose of this study was to determine if stability and proprioception scores improved on college-aged students using a slack line device. Methods: One group of 20 participants aged 18-23 from a Midwestern university performed a pre-test/post-test on a computerized posturography plate to determine Center of Pressure (CoP) and Limit of Stability (LoS) scores. Participants performed three 20-30 minute sessions per week of balance and proprioceptive training using a Balance Bow for a period of four weeks. Data were analyzed (SPSS 21.0) using a dependent t-test to determine if any changes occurred between pre- and post-test scores after four weeks. Results: The analyses found no significance difference in Center of Pressure (CoP), normal stability eyes open (NSEO), normal stability eyes closed (NSEC), perturbed stability eyes open (PSEO), perturbed stability eyes closed (PSEC), or LoS forward (F), backward (B), or right (R) scores in college-aged participants. A significant difference was found in LoS left (L) and a notable trend towards significance was found in LoS R results. Conclusion: With the exception of LoS L stability scores, it was concluded that 12 sessions of 20-30 minutes, utilizing a slack line device, over a four week training period did not significantly improve stability and proprioceptive scores of the ankle in college-aged participants
Balance Training Improves Function and Postural Control in Those with Chronic Ankle Instability
Medicine & Science in Sports & Exercise, 2008
Purpose: The purpose of this randomized controlled trial was to determine the effect of a 4-wk balance training program on static and dynamic postural control and self-reported functional outcomes in those with chronic ankle instability (CAI). Methods: Thirty-one young adults with self-reported CAI were randomly assigned to an intervention group (six males and 10 females) or a control group (six males and nine females). The intervention consisted of a 4-wk supervised balance training program that emphasized dynamic stabilization in single-limb stance. Main outcome measures included the following: self-reported disability on the Foot and Ankle Disability Index (FADI) and the FADI Sport scales; summary center of pressure (COP) excursion measures including area of a 95% confidence ellipse, velocity, range, and SD; time-to-boundary (TTB) measures of postural control in single-limb stance including the absolute minimum TTB, mean of TTB minima, and SD of TTB minima in the anteroposterior and mediolateral directions with eyes open and closed; and reach distance in the anterior, posteromedial, and posterolateral directions of the Star Excursion Balance Test (SEBT). Results: The balance training group had significant improvements in the FADI and the FADI Sport scores, in the magnitude and the variability of TTB measures with eyes closed, and in reach distances with the posteromedial and the posterolateral directions of the SEBT. Only one of the summary COP-based measures significantly changed after balance training. Conclusions: Four weeks of balance training significantly improved self-reported function, static postural control as detected by TTB measures, and dynamic postural control as assessed with the SEBT. TTB measures were more sensitive at detecting improvements in static postural control compared with summary COP-based measures.
British Journal of Sports Medicine
Postural control assessments are frequently used in clinical and research settings to evaluate movement deficits following acute lateral ankle sprain (LAS). The Star Excursion Balance Test (SEBT) is one such postural control assessment tool. To date, no research has investigated the immediate post-injury movement strategies associated with LAS, as quantified by center of pressure (COP) and kinematic analyses during performance of selected reach directions of the SEBT. To compare the kinematic and COP patterns of a group with acute LAS and a non-injured control group during performance of selected reach directions of the SEBT. Cross-sectional. University biomechanics laboratory. 81 participants with acute LAS and 19 non-injured controls. 3D kinematics of the hip, knee and ankle joints as well as associated fractal dimension (FD) of the COP path during the performance of the anterior (ANT), posterior-lateral (PL) and posterior-medial (PM) reach directions of the SEBT. The LAS group ha...
American Journal of Sports Medicine, 2004
Ankle injuries are the most common injuries across a wide variety of sports. Athletes who suffer from ankle sprains are more likely to reinjure the same ankle, 2,5,10,17 which can result in disability and can lead to chronic pain or instability in 20% to 50% of these cases. 13 Of all sports, volleyball has a relatively high incidence of sprains considering the noncontact nature of this game. 2 This high incidence of ankle sprains in volleyball and their negative consequences for future sports participation call for preventive measures.
Effect of balance training on postural stability in subjects with chronic ankle instability
Journal of sport rehabilitation, 2013
The lateral ligament complex of the ankle is a frequently injured structure in sports and recreational activities, which often results in chronic ankle instability (CAI). Balance exercise training has become a common component of clinical rehabilitation for CAI to address postural deficits. To determine the effect of balance training on postural stability, this critically appraised topic presents a summary and analysis of 4 relevant studies that address the effectiveness of balance training in subjects with CAI. Information about the methods and sources used in the article is provided. The findings imply that there is moderate evidence that 4-6 wk of balance training can enhance static and dynamic postural stability in subjects with CAI.
Serial Testing of Postural Control After Acute Lateral Ankle Sprain
Journal of athletic training, 2001
OBJECTIVE: To identify subjects' changes in postural control during single-leg stance in the 4 weeks after acute lateral ankle sprain. DESIGN AND SETTING: We used a 2 x 2 x 3 (side-by-plane-by-session) within-subjects design with repeated measures on all 3 factors. All tests were performed in a university laboratory. SUBJECTS: Seventeen young adults (9 men, 8 women; age, 21.8 +/- 5.9 years; mass, 74.9 +/- 10.5 kg; height, 176.9 +/- 7.1 cm) who had sustained unilateral acute mild or moderate lateral ankle sprains. MEASUREMENTS: Measures of center-of-pressure excursion length, root mean square velocity of center-of-pressure excursions (VEL), and range of center-of-pressure excursions (RANGE) were calculated separately in the frontal and sagittal planes during 5-second trials of static single-leg stance. RESULTS: We noted significant side-by-plane-by-session interactions for magnitude of center-of-pressure excursions in a given trial (PSL) (P =.004), VEL (P =.011), and RANGE (P =.0...
Effect of ankle proprioceptive training on static body balance
J. Phys. Ther. Sci., 2015
[Purpose] This study aimed to investigate the effect of ankle proprioceptive training on static body balance. [Subjects and Methods] In this randomized-controlled, single-blind study, 59 university students (35 females , 24 males) were randomized into study (n=29) and control (n=30) groups. The study group received a foot and ankle proprioceptive exercise program including stretching, strengthening (plantar and dorsi-flexors, invertor and evertor muscles), and balance board exercises, each with 10 repetitions per session, 5 days a week, for a total of 10 sessions. The control group did not receive any intervention. Static body balance was evaluated by a kines-thetic ability trainer, which showed the balance index scores under both single foot and both feet conditions. This evaluation was repeated at the end of two weeks for both groups. [Results] Outcome measures of the groups were similar at the baseline. Balance index scores of both groups improved at the end of two weeks, and the study group had significantly lower index scores than those of the control group, indicating better balance. [Conclusion] Ankle proprioceptive training had positive effects on static body balance parameters in healthy individuals, and it is worth investigating the effects of this type of training in patients with balance disorders.
Journal of Athletic Training, 2008
To answer the following clinical questions: (1) Is poor postural control associated with increased risk of a lateral ankle sprain? (2) Is postural control adversely affected after acute lateral ankle sprain? (3) Is postural control adversely affected in those with chronic ankle instability? PubMed and CINAHL entries from 1966 through October 2006 were searched using the terms ankle sprain, ankle instability, balance, chronic ankle instability, functional ankle instability, postural control, and postural sway. Only studies assessing postural control measures in participants on a stable force plate performing the modified Romberg test were included. To be included, a study had to address at least 1 of the 3 clinical questions stated above and provide adequate results for calculation of effect sizes or odds ratios where applicable. We calculated odds ratios with 95% confidence intervals for studies assessing postural control as a risk factor for lateral ankle sprains. Effect sizes were estimated with the Cohen d and associated 95% confidence intervals for comparisons of postural control performance between healthy and injured groups, or healthy and injured limbs, respectively. Poor postural control is most likely associated with an increased risk of sustaining an acute ankle sprain. Postural control is impaired after acute lateral ankle sprain, with deficits identified in both the injured and uninjured sides compared with controls. Although chronic ankle instability has been purported to be associated with altered postural control, these impairments have not been detected consistently with the use of traditional instrumented measures. Instrumented postural control testing on stable force plates is better at identifying deficits that are associated with an increased risk of ankle sprain and that occur after acute ankle sprains than at detecting deficits related to chronic ankle instability.
Postural control strategies during single limb stance following acute lateral ankle sprain
Clinical Biomechanics, 2014
word count: 247 Word count: 3941 3 tables 2 figures ABSTRACT Background: Single-limb stance is maintained via the integration of visual, vestibular and somatosensory afferents. Musculoskeletal injury challenges the somatosensory system to reweight distorted sensory afferents. This investigation supplements kinetic analysis of eyesopen and eyes-closed single-limb stance tasks with a kinematic profile of lower limb postural orientation in an acute lateral ankle sprain group to assess the adaptive capacity of the sensorimotor system to injury. Methods: Sixty-six participants with first-time acute lateral ankle sprain completed a 20
2018
Background: Chronic ankle instability (CAI) is a common sequence of ankle sprain. Conservative treatment of CAI is currently accepted as a primary mean of managing the condition and preventing of recurrence. Objectives: The purpose of the current study was to evaluate the effect of Weight-bearing Exercise for Better Balance (WEBB) program and unilateral balance training exercises on postural control in females with CAI. Methods: Thirty-five females with CAI participated in this study. The participants' mean values of age, body mass, height, and body mass index were 21.76 ± 1.96 y, 64.82 ± 9.37 kg, 161.85 ± 7.24 cm, and 24.76 ± 3.76 kg/m², respectively. They were randomly assigned into three groups: experimental group A (n = 13) who received WEBB program, experimental group B (n = 12) who received unilateral balance training, and control group C (n = 10) using statistical random tables. Balance parameters were measured for all participants via Biodex Balance System (BBS) before and after four weeks of balance training. They included overall stability index (OASI), antero-posterior stability index (APSI), and medio-lateral stability index (MLSI). Results: There was a significant improvement in the post testing mean values of OASI and APSI, compared with the pre testing values in both experimental groups (A and B). There was no significant difference between the pre and post testing mean values of MLSI in the experimental group (A). Conclusions: Both WEBB program and unilateral balance training have positive effects on postural control in females with CAI.