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EUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE
Rivista di Medicina Fisica e Riabilitativa dopo Eventi Patologici
Official Journal of the , , , ,
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Indexed/Abstracted in: CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 2,063
Europa Medicophysica 1999 June;35(2):83-92
S-EMG of the Hip: ROM protocol. A study of consistency and repeatability/reliability of electrical activity of 18 muscles
Sella G. E.
Valley Disability Institute, Martins Ferry, Ohio
BACKGROUND: This study tested the hypothesis that the S-EMG of the hip ROM is a methodology which allows for good internal consistency of results as well as good repeatability and reliability of testing.
METHODS: The investigation was a methodological study of an S-EMG protocol of the hip ROM. The duration of each test was approx half an hour. Each test was repeated 3 times within an 8 hour day. Setting: the study was conducted in a private physician’s office. Participants: the study was conducted with 5 adult volunteers participants. None had acute myofascial or other muscular dysfunctions, however 4/5 had clinical histories of muscular dysfunction. Interventions: the testing was not invasive. It did not involve any unusual movements such as may have fatigued the bodies of the participants. Measures: the statistical outcomes were the following: gathering of average (X), standard deviation (SD) and co-efficients of variation (CV) of 5 repetitions of activity or resting potentials gathered for each segment of hip ROM tested. These statistics were averaged over 18 muscles and 14 segments of ROM for the 3 trials of each test. The overall statistics were normalized in terms of activity/ rest ratio (A/R) and in terms of percentage of dispersion from average values over the 3 trials of the testing.
RESULTS: The overall results indicated that the S-EMG of the hip ROM protocol conducted over 3 trials and 3 persons showed a very high degree of internal consistency (CV>93%) and a high degree of repeatability/reliability of all the results over the 18 muscles and 3 trials (1%
CONCLUSIONS: In conclusion, the S-EMG/ hip ROM protocol tested shows that S-EMG methodology has a very high degree of internal consistency and repeatability/ reliability in the conditions investigated.