Between-day reliability of a hand-held dynamometer and surface electromyography recordings during isometric submaximal contractions in different shoulder positions
| Autor: | Pascal Madeleine, Kathrine Skov Andersen, Birgitte Hede Christensen, Afshin Samani |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Adult
Male Relative reliability medicine.medical_specialty Shoulder Rotation Outcome measurements Biophysics Neuroscience (miscellaneous) Isometric exercise Electromyography Muscle Strength Dynamometer Young Adult Physical medicine and rehabilitation Isometric Contraction medicine Humans Muscle Strength Range of Motion Articular Muscle Skeletal Physical Examination Reliability (statistics) Dynamometer medicine.diagnostic_test business.industry Hand held Healthy subjects Reproducibility of Results Hand Female Neurology (clinical) business |
| Zdroj: | Andersen, K S, Christensen, B H, Samani, A & Madeleine, P 2014, ' Between-day reliability of a hand-held dynamometer and surface electromyography recordings during isometric submaximal contractions in different shoulder positions ', Journal of Electromyography & Kinesiology, vol. 24, no. 5, pp. 579-587 . https://doi.org/10.1016/j.jelekin.2014.05.007 |
| DOI: | 10.1016/j.jelekin.2014.05.007 |
| Popis: | Functional shoulder assessments require the use of objective and reliable standardized outcome measures. Therefore, the aim of this study was to examine the between-day reliability of a hand-held dynamometer when measuring muscle strength during flexion, abduction, and internal and external rotation as well as surface electromyography (EMG) when measuring muscle activity from m. trapezius superior and deltoideus anterior. Twenty-four healthy subjects participated and performed four isometric contractions measured with a hand-held dynamometer and EMG. Both relative and absolute reliability were calculated based on the mean of the last three of the four repetitions. EMG amplitude was assessed calculating both absolute and normalized root-mean-square (RMS) values. The reliability of the hand-held dynamometer was high (LOA=3.2-7.6% and ICC=0.89-0.98). The absolute reliability for EMG showed similar results for absolute RMS values (LOA=20.0-68.4%) and normalized RMS values (LOA=42.4-66.5%). However, the results concerning the relative reliability showed higher ICC for absolute RMS values (ICC=0.82-0.92) compared with normalized values (ICC=0.57-0.72).The outcome measurements of this study with healthy subjects were found reliable and, therefore, have the potential to detect changes in muscle strength and muscle activity. |
| Databáze: | OpenAIRE |
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