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BackgroundLateral ankle sprains are common in indoor sports. High shoe–surface friction is considered a risk factor for non-contact lateral ankle sprains. Spraino is a novel low-friction patch that can be attached to the outside of sports shoes to minimise friction at the lateral edge, which could mitigate the risk of such injury. We aimed to determine preliminary effectiveness (incidence rate and severity) and safety (harms) of Spraino to prevent lateral ankle sprains among indoor sport athletes.MethodsIn this exploratory, parallel-group, two-arm pilot randomised controlled trial, 510 subelite indoor sport athletes with a previous lateral ankle sprain were randomly allocated (1:1) to Spraino or ‘do-as-usual’. Allocation was concealed and the trial was outcome assessor blinded. Match and training exposure, number of injuries and associated time loss were captured weekly via text messages. Information on harms, fear-of-injury and ankle pain was also documented.Results480 participants completed the trial. They reported a total of 151 lateral ankle sprains, of which 96 were categorised as non-contact, and 50 as severe. All outcomes favoured Spraino with incidence rate ratios of 0.87 (95% CI 0.62 to 1.23) for all lateral ankle sprains; 0.64 (95% CI 0.42 to 0.98) for non-contact lateral ankle sprains; and 0.47 (95% CI 0.25 to 0.88) for severe lateral ankle sprains. Time loss per injury was also lower in the Spraino group (1.8 vs 2.8 weeks, p=0.014). Six participants reported minor harms because of Spraino.ConclusionCompared with usual care, athletes allocated to Spraino had a lower risk of lateral ankle sprains and less time loss, with only few reported minor harms.Trial registration number NCT03311490.

Background Ankle sprain is one of the common traumatic injuries in daily life, and PRICE (protection, rest, ice, compression pressure bandaging, elevation of the affected limb) principle is routinely recommended at its early stage. In traditional Chinese medicine (TCM), bone-setting technique (BST) can quickly relieve ankle pain and improve walking function, but physicians require high skills and physical strength. In this study, we designed an exercise—heel kicking exercise (HKE) based on the principles and methods of BST. This study aims to observe its true efficacy and safety. Methods 68 patients (18–45 years old) with grade I and II lateral ankle sprain within 48 h were recruited from TCM hospital affiliated to Guangzhou medical university and 60 cases meeting the criteria were enrolled and randomized into control group and intervention group (30 cases separately). The patients in both groups were treated with the PRICE and ankle pump exercise, and the ones in intervention group added heel kicking exercise (HKE). The visual analogue scale (VAS) for pain, swelling degree, and American orthopedic foot & ankle society ankle-hindfoot scale (AOFAS) score before and after the intervention (within 4 W), and Karlsson score (the 26th week follow-up) were measured. Results Before treatment, there were no significant differences in VAS scores, swelling degrees and AOFAS scores between two groups. During the treatment for 4 weeks, VAS scores and swelling degrees of the patients in both groups gradually decreased, and the AOFAS score gradually increased ( p  < 0.01). In addition, patients in the intervention group were observed to get a quicker pain reliever, swelling subsiding, and ankle function restore than those in control group at most of time points of observation (1st d, 3rd d, 1st w, 2nd w, 4th w) ( p  < 0.05, p  < 0.01). But there was no significant difference in Karlsson scores between two groups at the 26th week follow-up. Conclusions HKE is a method designed to provide rapid movement rehabilitation for patients with ankle sprains, which can be used as one of its basic treatments. Trial registration This study was registered in China Clinical Trial Center (NO. ChiCTR2300073709). Trial registration date: August 16th 2022.

Cryotherapy is a low-cost treatment option recommended by clinical practice guidelines in acute ankle sprain. However, the current quality of the evidence that supports cryotherapy is still unclear. New high-quality randomised controlled trials are needed. The aim of the Freeze On Sprain Trial (FROST) is to investigate the effectiveness of cryotherapy on function, pain intensity, swelling and dorsiflexion range of motion in people with an acute episode of ankle sprain. This is a protocol of a two-arm randomised controlled trial. Eighty-two participants over 18 years old presenting grade I or II ankle sprain up to 72 hours from the episode will be randomly allocated to Ice Group (i.e., home prescription to apply cryotherapy on the injured ankle with elevation plus non-steroidal anti-inflammatory medication - NSAID) or No Ice Group (i.e., elevation plus NSAID). Our primary outcome is function measured by the Lower Extremity Functional Scale (LEFS) questionnaire. Our secondary outcomes are pain intensity (11-point numerical rating scale), swelling (figure-of-eight method) and dorsiflexion range of motion (goniometry). Participants will be assessed at baseline, 24 hours, 7-10 days, and 12 weeks after allocation. The analysis will follow the intention-to-treat principle using linear mixed models. The results of this study will clarify the effectiveness of cryotherapy in acute ankle sprain for better clinical decision-making processes. Brazilian Clinical Trials Registry (REBEC) RBR-8v9gr9c.

Individuals with chronic ankle instability (CAI) have deficits in neuromuscular control and altered movement patterns. Ankle-destabilization devices have been shown to increase lower extremity muscle activity during functional tasks and may be useful tools for improving common deficits and self-reported function.Context: To determine whether a 4-week rehabilitation program that includes destabilization devices has greater effects on self-reported function, range of motion (ROM), strength, and balance than rehabilitation without devices in patients with CAI.Objective: Randomized controlled clinical trial.Design: Laboratory.Setting: A total of 26 patients with CAI (7 men, 19 women; age = 21.34 ± 3.06 years, height = 168.96 ± 8.77 cm, mass = 70.73 ± 13.86 kg).Patients or Other Participants: Patients completed baseline measures and were randomized into no-device and device groups. Both groups completed 4 weeks of supervised, impairment-based progressive rehabilitation with or without devices and then repeated baseline measures.Intervention(s): We assessed self-reported function using the Foot and Ankle Ability Measure. Ankle ROM was measured with an inclinometer. Ankle strength was assessed using a handheld dynamometer during maximal voluntary isometric contractions. Balance was measured using a composite score of 3 reach directions from the Star Excursion Balance Test and a force plate to calculate center of pressure during eyes-open and eyes-closed single-limb balance. We compared each dependent variable using a 2 × 2 (group × time) analysis of variance and post hoc tests as appropriate and set an a priori α level at .05. The Hedges g effect sizes and associated 95% confidence intervals were calculated.Main Outcome Measure(s): We observed no differences between the no-device and device groups for any measure. However, both groups had large improvements in self-reported function and ankle strength.Results: Incorporating destabilization devices into rehabilitation did not improve ankle function more effectively than traditional rehabilitation tools because both interventions resulted in similar improvements. Impairment-based progressive rehabilitation improved clinical outcomes associated with CAI.Conclusions:

Introduction Ankle sprains are the second most common sports injury after knee injuries, with about 85% of them affecting the lateral ankle ligaments. These injuries are particularly prevalent in sports like basketball and volleyball. Purpose To investigate the effect of Aquatic therapy as an early rehabilitation protocol for elite athletes with acute lateral ankle sprain grade III on back-to-sport time, dynamic balance, pain, Athletic performance, and muscle power compared to land-based exercise training. Methods Thirty elite athletes have ankle sprain grade III with sprain onset from 1 to 7 days, their age ranges from 18–30 years old were recruited. All participants are professional athletes; mainly participating in above-head sports such as volleyball and basketball. The patients were randomly allocated into two treatment groups: Group I (control group): 15 patients received a conventional physical therapy program of structured therapeutic exercise program, manual therapy and land-based exercises, in addition to external support, and Group II (Aquatic therapy group): 15 patients received aquatic training. Visual Analog Scale (VAS) was used to measure the pain intensity, while the dynamic balance was measured by the Star Excursion Balance Test. Athletic performance was measured by HOP Tests (Single, Triple, 6-m, and Cross-over hops) aided by the Agility T-Test (ATT) and Illinois Agility Test (IAT). Muscle power was tested by a Single Leg Press. Finally, back to sports time was recorded for each participant in both groups. Results There was a significant interaction effect of Aquatic therapy and time for VAS ( p  < 0.001), single hop ( p  < 0.001), triple hop ( p  < 0.001), cross-over hop ( p  < 0.001), IAT ( p  = 0.019) and ATT ( p  < 0.001) of both affected and nonaffected. There was no significant interaction effect of Aquatic therapy and time for 6-MHT of affected ( p  = 0.923), and nonaffected ( p  = 0.140). There was a significant main effect of time for all dependent variables ( p  < 0.001) except for 6-MHT of affected ( p  = 0.939), nonaffected ( p  = 0.109), and IAT ( p  = 0.099). The Star excursion dynamic balance test (SEBT) and Single leg press revealed a significant difference between groups on affected and non-affected sides ( p  < 0.001*). Lastly and most importantly the back-to-sport time revealed a significant difference in the return-to-sport time in favor of the Aquatic therapy group who returned faster than the control group ( p  < 0.001*). Conclusion Aquatic therapy is more effective than traditional protocols regarding early rehabilitation of acute ankle sprain grade III in Elite professional athletes for reducing pain intensity, improving dynamic balance and athletic performance and power and accelerating their return to sports time. Because aquatic therapy produces better outcomes, it is advised to be included in the rehabilitation programs of athletic patients with acute ankle sprains grade III.

To determine the effect of mobilization with movement (MWM) on pain, ankle mobility and function in patients with acute and sub-acute grade I and II inversion ankle sprain. Randomized placebo controlled trial. A general hospital. 32 adults with inversion ankle sprain. The primary outcome was pain intensity on an 11 point Numeric Rating Scale (NRS) with higher score indicating greater pain intensity. Ankle disability identified by the Foot and Ankle Disability index (FADI) with higher score indicating lower disability, functional ankle dorsiflexion range, pressure pain threshold, and dynamic balance measured with the Y balance test were secondary outcomes. Thirty participants completed the study. At each follow-up point, significant differences were found between groups favouring those receiving MWM for all variables. Pain intensity showed a mean difference of 1.7 points (95% confidence interval, 1.4 to 2.1) and 0.9 points (95% confidence interval, 0.5 to 1.3) at one and six-months follow-up respectively. Benefits were also shown for FADI, ankle mobility, pressure pain threshold and balance. This study provides preliminary data for the benefits of MWM for acute and sub-acute ankle sprain in terms of pain, ankle mobility, disability and balance. •For grade I and II acute ankle sprain, manual therapy is effective with exercises.•Six sessions of MWM are effective to reduce pain, disability and improve balance.•MWM targeted to inferior tibiofibular joint should be reinforced with rigid tape.•Pain as tolerated can be permitted with care while performing exercises.

The Executive Committee of the International Ankle Consortium presents this 2016 position paper with recommendations for information implementation and continued research based on the paradigm that lateral ankle sprain (LAS), and the development of chronic ankle instability (CAI), serve as a conduit to a significant global healthcare burden. We intend our recommendations to serve as a mechanism to promote efforts to improve prevention and early management of LAS. We believe this will reduce the prevalence of CAI and associated sequelae that have led to the broader public health burdens of decreased physical activity and early onset ankle joint post-traumatic osteoarthritis. Ultimately, this can contribute to healthier lifestyles and promotion of physical activity.

Introduction: Recurrent ankle sprains can lead to chronic ankle instability. The flossing technique aims to modify the function and characteristics of fascial tissue. The objective was to evaluate the effectiveness of flossing and sliding techniques in improving subjects with previous ankle sprains. Methods: Randomized, double-blind clinical study with a follow-up period. Twenty-six subjects were assigned to two study groups: experimental (flossing technique and passive manual therapy techniques) and placebo control group (flossing technique without compression and manual therapy techniques without sliding). The intervention lasted three weeks, with two sessions per week. The study variables were dorsiflexion under load (Leg Motion®), ankle mobility under unloaded conditions (goniometer), pressure pain threshold (algometer), and stability (Rs Scan® pressure platform). Three measurements were taken: pre-treatment (T0), post-treatment (T1), and after 3 weeks of follow-up (T2). Results: There were significant intergroup differences in dorsiflexion under load (F = 4.90; p = 0.02). Range of motion in plantar flexion without load (F = 3.78; p = 0.04), in the ellipse area (F = 4.72; p = 0.01), left stability (F = 3.74; p = 0.03), and right stability (F = 3.73; p = 0.03) without visual support. Conclusions: A physiotherapy protocol using flossing and manual sliding therapy can increase loaded dorsal flexion in young adults with previous ankle sprains. This intervention can also improve ankle plantar flexion under unloaded conditions. The area of the ellipse without visual support can improve in young adults with a history of ankle sprains following a program of flossing and manual therapy.

Background Warm-up and stretching are suggested to increase hamstring flexibility and reduce the risk of injury. This study examined the short-term effects of warm-up, static stretching and dynamic stretching on hamstring flexibility in individuals with previous hamstring injury and uninjured controls. Methods A randomised crossover study design, over 2 separate days. Hamstring flexibility was assessed using passive knee extension range of motion (PKE ROM). 18 previously injured individuals and 18 uninjured controls participated. On both days, four measurements of PKE ROM were recorded: (1) at baseline; (2) after warm-up; (3) after stretch (static or dynamic) and (4) after a 15-minute rest. Participants carried out both static and dynamic stretches, but on different days. Data were analysed using Anova. Results Across both groups, there was a significant main effect for time (p < 0.001). PKE ROM significantly increased with warm-up (p < 0.001). From warm-up, PKE ROM further increased with static stretching (p = 0.04) but significantly decreased after dynamic stretching (p = 0.013). The increased flexibility after warm-up and static stretching reduced significantly (p < 0.001) after 15 minutes of rest, but remained significantly greater than at baseline (p < 0.001). Between groups, there was no main effect for group (p = 0.462), with no difference in mean PKE ROM values at any individual stage of the protocol (p > 0.05). Using ANCOVA to adjust for the non-significant (p = 0.141) baseline difference between groups, the previously injured group demonstrated a greater response to warm-up and static stretching, however this was not statistically significant (p = 0.05). Conclusion Warm-up significantly increased hamstring flexibility. Static stretching also increased hamstring flexibility, whereas dynamic did not, in agreement with previous findings on uninjured controls. The effect of warm-up and static stretching on flexibility was greater in those with reduced flexibility post-injury, but this did not reach statistical significance. Further prospective research is required to validate the hypothesis that increased flexibility improves outcomes. Trial Registration ACTRN12608000638336