Alteration in global motor strategy following lateral ankle sprain

NewsBot · Dec 17, 2014

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Alteration in global motor strategy following lateral ankle sprain
Maude Bastien, Hélène Moffet, Laurent J Bouyer, Marc Perron, Luc J Hébert and Jean Leblond
BMC Musculoskeletal Disorders 2014, 15:436 doi:10.1186/1471-2474-15-436

Background
Lateral ankle sprain (LAS) has often been considered an injury leading to localized joint impairments affecting the musculoskeletal system. Persistent chronic ankle instability and bilateral alterations in motor control after a first ankle sprain episode suggest that the origin of relapses might be a maladaptive reorganization of central motor commands. The objectives of this study were (1) to compare the quality of motor control through motor strategy variables of two groups (with and without LAS) from a military population (n = 10/group), (2) to evaluate the contribution of the lower limbs and the trunk to global body strategy and (3) to identify which global variable best estimates performance on the Star Excursion Balance Test (SEBT) for each group, reaching direction, and lower limb.

Methods
Personal and clinical characteristics of the participants of both groups were collected. Their functional ability was measured using questionnaires and they performed a series of functional tests including the SEBT. During this test, the maximal reach distance (MRD) and biomechanical data were collected to characterize whole body and segmental strategies using a 3D motion capture system.

Results
At maximal lower limb reach, participants with LAS had a smaller variation in their vertical velocity in lowering-straightening and lowered the body centre of mass less for all injured limb conditions and some conditions with the uninjured lower limb. The global body centre of mass variables were significantly correlated to SEBT performance (MRD).

Conclusion
Modifications in global motor strategies were found in participants with LAS as well as a decreased performance on the SEBT for the injured and uninjured lower limbs. These results support the hypothesis that following LAS, there may be a maladaptive reorganization of the central motor commands.
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Admin2 · Dec 19, 2014

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Help with a patient who is constantly spraining his ankles, once every 3 months!

NewsBot · Jun 17, 2017

Collegiate Athletes with Ankle Sprain History Exhibit Greater Fear-Avoidance Beliefs
Megan N. Houston Johanna M. Hoch, Matthew C. Hoch
Journal of Sport Rehabilitation ahead of print

Context:
Post-injury, collegiate athletes have reported elevated levels of fear. However, it is unclear how history of ankle sprain impacts injury-related fear.

Objective:
The aim of this study was to determine if Fear-Avoidance Beliefs Questionnaire (FABQ) scores differ between collegiate athletes with a history of a single ankle sprain, those with recurrent ankle sprains, and healthy controls.

Design:
Cross-sectional.

Setting:
National Collegiate Athletic Association institutions.

Patients:
From a large database of collegiate athletes 75 participants with a history of a single ankle sprain, 44 with a history of recurrent ankle sprains (≥2) and 28 controls with no injury history were included.

Main Outcome Measures:
Participants completed an injury history questionnaire and the FABQ. On the injury history form the participant was asked to indicate if they had ever sustained an ankle sprain, if yes, to describe how many. FABQ scores range from 0 to 66 with higher scores representing greater fear.

Results:
Athletes with a history of recurrent ankle sprains (42.4 (27.7 to 57.6)) reported greater levels of fear on the FABQ compared to those with a history of a single ankle sprain (31.8 (12.1 to 47.0), p=0.03, ES=0.20) and controls (12.1 (0.00 to 43.6), p< 0.01, ES=0.39). Athletes with a history of a single sprain reported greater fear compared to healthy controls (p=0.02, ES=0.23).

Conclusions:
Collegiate athletes with a history of ankle sprain exhibited greater levels of fear on the FABQ compared to healthy controls. These findings suggest that ankle sprains in general may increase injury-related fear but those with a history of recurrent sprains appear to be more vulnerable.
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Craig Payne · Jun 17, 2017

NewsBot said: ↑

Alteration in global motor strategy following lateral ankle sprain
Maude Bastien, Hélène Moffet, Laurent J Bouyer, Marc Perron, Luc J Hébert and Jean Leblond
BMC Musculoskeletal Disorders 2014, 15:436 doi:10.1186/1471-2474-15-436
Click to expand...

versus

NewsBot said: ↑

Collegiate Athletes with Ankle Sprain History Exhibit Greater Fear-Avoidance Beliefs
Megan N. Houston Johanna M. Hoch, Matthew C. Hoch
Journal of Sport Rehabilitation ahead of print
Click to expand...

Are the alterations in motor control from first study real or due to the fear avoidance changing function during testing from the second study?

NewsBot · Oct 30, 2021

Hip and knee muscle torque is not impaired in the first three months of a first-time lateral ankle sprain
NafisehKhalajBillVicenzinoMichelle D.Smith
Physical Therapy in Sport; 26 October 2021

Highlights
•Hip and knee muscle strength is not impaired after an acute lateral ankle sprain.
•Hip and knee muscle strength does not change within 3 months of an ankle sprain.
•Proximal strength deficits in chronic ankle instability are not seen acutely.
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Objectives
The primary objective was to compare hip and knee isometric muscle strength between individuals with a first-time acute lateral ankle sprain and controls. A secondary objective was to investigate hip and knee isometric muscle strength three months post-injury.

Design
Cross-sectional and prospective follow-up components.

Setting
Laboratory environment.

Participants
Forty-two participants (21 acute lateral ankle sprain and 21 controls) matched for age, sex, physical activity and leg dominance participated.

Main outcome measures
Hip and knee isometric muscle torque was assessed using a rigidly fixated hand-held dynamometer. Testing in acute lateral ankle sprain participants was performed within four weeks of injury and three months post-injury. Controls were tested at one timepoint.

Results
There were no differences in hip or knee isometric muscle torque between acute lateral ankle sprain and control participants (mean differences <0.08). Hip and knee isometric muscle torque in acute ankle sprain participants did not differ between baseline and three months post-injury testing (mean difference <0.06).

Conclusions
Proximal lower limb isometric strength is not impaired within the first three months of sustaining a first-time lateral ankle sprain injury. This implies that hip and knee isometric strength deficits in individuals with CAI may occur at some later stage.
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