Two-dimensional spatial error distribution of key tensiomyographic parameters.
In: Journal of biomechanics, Jg. 92 (2019-07-19), S. 92
Online
academicJournal
Zugriff:
Tensiomyography detects the contraction time (Tc) and amplitude (Dm) of muscle belly thickening during maximal isometric twitch contraction. The assessment of both parameters is highly reliable; however, it seems that their calculation depends on the measurement point. The aim of the study was to determine spatial relative error distribution of Tc and/or Dm within a two-dimensional array of 27 (3 × 9) measurement points in comparison to the reference point (RP) in 12 male participants (22.5 ± 3.1 years). The RPs were determined as follows: in the biceps brachii (BB) at 50% of the humerus length; in the erector spinae (ES) at the height of the iliac crest; in the vastus lateralis (VL), vastus medalis (VM), and rectus femoris (RF) at 30%, 20%, and 50% of femur length above the patella, respectively. The surface area under the 3% relative error in Dm (BB: 4.0; VL: 3.8; VM; 8.2; RF: 6.2; ES: 2.4 cm 2 ) was lower than in Tc (BB: 6.9; VL: 3.8; VM; 4.6; RF: 9.5; ES: 3.7 cm 2 ), yielding merged values (BB: 3.9; VL: 3.7; VM; 4.8; RF: 5.1; ES: 2.4 cm 2 ). Dm show twice as steep relative error rate when moving away from the RP in comparison to Tc, which seems to be less sensitive to spatial sensor positioning.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Titel: |
Two-dimensional spatial error distribution of key tensiomyographic parameters.
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Autor/in / Beteiligte Person: | Šimunič, B |
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Zeitschrift: | Journal of biomechanics, Jg. 92 (2019-07-19), S. 92 |
Veröffentlichung: | New York ; Oxford : Elsevier Science, 2019 |
Medientyp: | academicJournal |
ISSN: | 1873-2380 (electronic) |
DOI: | 10.1016/j.jbiomech.2019.05.035 |
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