The effect of a balance training programme on centre of pressure excursion in one-leg stance (original) (raw)
Effect of active foot positioning on the outcome of a balance training program
Physical Therapy in Sport, 2004
Objectives. To compare the effectiveness of a traditional balance training program and a balance training program that emphasizes foot positioning, in improving postural control. Design. Randomized control study using a pre-post design. Setting. A laboratory setting. Participants. Forty-five healthy college students participated. Sixteen completed a traditional balance training program (TRAD), 14 completed a training program emphasizing foot positioning (POS), and 15 received no intervention (CONT). Subjects in the TRAD and POS group performed balance training on their dominant lower extremity for 4 weeks. Main outcome measure. Center of pressure excursion velocity (COPV) assessed during single leg quiet standing on a force plate during eyes open and eyes closed trials on both the trained and untrained limbs. Results. The TRAD group improved substantially more than did the POS or CONT groups. Improvements in COPV measures were seen in the TRAD group for both the trained and untrained limbs. The most substantial improvements occurred on the trained leg in the eyes closed condition. Traditional balance training appears to be more effective than balance training emphasizing active foot positioning in healthy individuals. Bilateral improvement in balance for the TRAD group suggests a central nervous system control of postural control.
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.
The Journal of orthopaedic and sports physical therapy, 2015
Study Design Controlled laboratory study. Objective To utilize kinematic and stabilometric measures to compare dynamic balance during performance of the Star Excursion Balance Test (SEBT) between persons 6-months post first-time lateral ankle sprain (LAS) and a non-injured control group. Background Biomechanical evaluation of dynamic balance in persons following first-time LAS during SEBT performance could provide insight into the mechanism(s) by which individuals proceed to recover fully, or develop chronic ankle instability. Methods Sagittal-plane kinematics of the lower extremity and the center of pressure (COP) path during the performance of the anterior (ANT), posterior-lateral (PL) and posterior-medial (PM) reach directions of the SEBT were obtained from 69 participants, 6 months following first-time acute LAS. Data also were obtained from 20 non-injured controls. Results The LAS group displayed lower normalized reach distances in all 3 reach directions compared to control par...
Journal of athletic training, 2016
Rehabilitation programs for patients with chronic ankle instability (CAI) generally involve balance-perturbation training (BPT). Anticipatory postural adjustments (APAs) and compensatory postural adjustments (CPAs) are the primary strategies used to maintain equilibrium during body perturbations. Little is known, however, about how APAs and CPAs are modified to promote better postural control for individuals with CAI after BPT. To investigate the effect of BPT that involves kicking a ball on postural-control strategies in individuals with CAI. Randomized controlled clinical trial. Laboratory. We randomly assigned 44 volunteers with CAI to either a training group (TG; 11 women, 11 men; age = 24 ± 4 years, height = 173.0 ± 9.8 cm, mass = 72.64 ± 11.98 kg) or control group (CG; 11 women, 11 men; age = 22 ± 3 years, height = 171.0 ± 9.7 cm, mass = 70.00 ± 11.03 kg). The TG performed a single 30-minute training session that involved kicking a ball while standing on 1 foot. The CG r...
Asian Journal of Sports Medicine
Background: This study aimed at investigating the acute effects of combined EXERCISE and TAPING in comparison to isolated proprioceptive exercise (EXERCISE) and ankle neuromuscular taping (TAPING) on one-leg stability performance in rugby players. Methods: Stability tests, performed on a stabilometric platform, were assessed for stability before and after above interventions. Performed stability tests were one-leg static stance (dominant leg and non-dominant leg) each with eyes open and eyes closed. The assessed dependent variables were: centre of pressure (CoP) path length; CoP speed; medio-lateral, and anterior-posterior sway. Sixteen male rugby players (27.3 ± 3.3 years; 177.3 ± 7.3 cm; 88.8 ± 15.2 kg) from a non-professional rugby team were tested in all above conditions, according to a cross-over study design. Results: Most of investigated variables improved following EXERCISE + TAPING (CoP path length-18.2/-15.6%, CoP speed-22.8/-17.7%, and anterior-posterior sway-21.0/-16.3%), in comparison with the other two protocols. EXERCISE + TAPING improved the stability control by combining the effects of both proprioceptive exercise and neuromuscular taping. Conclusions: Such findings could suggest the benefits of planning long-term strategies using EXERCISE + TAPING protocols for improving the functional stability and for preventing re-occuring injuries.
Isokinetics and Exercise Science, 2017
BACKGROUND: Following ankle sprain, residual symptoms are often apparent, and proprioceptive training is a treatment approach. Evidence, however, is limited and the optimal program has to be identified. OBJECTIVE: To investigate the effects of two post-acute supervised proprioceptive training programs in individuals with ankle sprain. METHODS: Participants were recruited from a physiotherapy center for ankle sprain rehabilitation. In a pre-post treatment, blinded-assessor design, 22 individuals were randomly allocated to a balance or a proprioceptive neuromuscular facilitation (PNF) group. Both groups received 10 rehabilitation sessions, within a six-week period. Dorsiflexion range of motion (ROM), pain, functional and balance performance were assessed at baseline, at the end of training and eight weeks after training. RESULTS: Follow-up data were provided for 20 individuals. Eight weeks after training, statistically significant (p < 0.017) improvements were found in dorsiflexion ROM and most functional performance measures for both balance and PNF groups. Eight weeks after training, significant (p < 0.017) improvements in the frontal plane balance test and pain were observed for the balance group. CONCLUSIONS: Balance and PNF programs are recommended in clinical practice for improving ankle ROM and functional performance in individuals with sprain. Balance programs are also recommended for pain relief.