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Patients with chronic ankle instability (CAI) show biomechanical and neuromuscular alterations during the performance of functional movements not only at the ankle joint level, but also in more proximal joints and segments. Few studies have been conducted to investigate the effects of chronic ankle instability on neuromuscular control at the knee joint level. The aim of this study is to investigate whenther abnormalities exists in maximal and sub-maximal isometric muscle strength expression in patients with CAI.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| CAI group |
| ||
| Control group |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Chronic ankle instability | Other | Persistent condition of ankle instability after a first ankle sprain episode. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Forces exerted by knee extensor and flexor muscles | The forces (N) exerted by knee extensor and flexor muscles will be assessed by means of a dynamometer during maximal and submaximal isometric muscle contractions. | Day 1 |
| Measure | Description | Time Frame |
|---|---|---|
| Knee extensor and flexor muscles activations | Knee extensor and flexor muscles activations (mV) during the maximal and submaximal isometric contractions will be recorded by means of surface electrodes for electromyography. | Day 1 |
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Inclusion Criteria:
Exclusion Criteria:
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Orthopaedic hospital and community individuals
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| Name | Affiliation | Role |
|---|---|---|
| Maria Grazia Benedetti, MD | IRCCS Istituto Ortopedico Rizzoli | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Istituto Ortopedico Rizzoli | Bologna | 40136 | Italy |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 38459686 | Derived | Labanca L, Tedeschi R, Mosca M, Benedetti MG. Individuals With Chronic Ankle Instability Show Abnormalities in Maximal and Submaximal Isometric Strength of the Knee Extensor and Flexor Muscles. Am J Sports Med. 2024 Apr;52(5):1328-1335. doi: 10.1177/03635465241232090. Epub 2024 Mar 8. |
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