Assessment of neuromuscular function after different strength training protocols using tensiomyography.
In: Journal of strength and conditioning research, Jg. 29 (2015-05-01), Heft 5, S. 1339
academicJournal
Zugriff:
The purpose of the study was to analyze tensiomyography (TMG) sensitivity to changes in muscle force and neuromuscular function of the muscle rectus femoris (RF) using TMG muscle properties after 5 different lower-limb strength training protocols (multiple sets; DS = drop sets; eccentric overload; FW = flywheel; PL = plyometrics). After baseline measurements, 14 male strength trained athletes completed 1 squat training protocol per week over a 5-week period in a randomized controlled order. Maximal voluntary isometric contraction (MVIC), TMG measurements of maximal radial displacement of the muscle belly (Dm), contraction time between 10 and 90% of Dm (Tc), and mean muscle contraction velocities from the beginning until 10% (V10) and 90% of Dm (V90) were analyzed up to 0.5 (post-train), 24 (post-24), and 48 hours (post-48) after the training interventions. Significant analysis of variance main effects for measurement points were found for all TMG contractile properties and MVIC (p < 0.01). Dm and V10 post-train values were significantly lower after protocols DS and FW compared with protocol PL (p = 0.032 and 0.012, respectively). Dm, V10, and V90 decrements correlated significantly to the decreases in MVIC (r = 0.64-0.67, p ≤ 0.05). Some TMG muscle properties are sensitive to changes in muscle force, and different lower-limb strength training protocols lead to changes in neuromuscular function of RF. In addition, those protocols involving high and eccentric load and a high total time under tension may induce higher changes in TMG muscle properties.
Titel: |
Assessment of neuromuscular function after different strength training protocols using tensiomyography.
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Autor/in / Beteiligte Person: | de Paula Simola RÁ ; Harms, N ; Raeder, C ; Kellmann, M ; Meyer, T ; Pfeiffer, M ; Ferrauti, A |
Zeitschrift: | Journal of strength and conditioning research, Jg. 29 (2015-05-01), Heft 5, S. 1339 |
Veröffentlichung: | Champaign, IL : Human Kinetics Pub., c1993-, 2015 |
Medientyp: | academicJournal |
ISSN: | 1533-4287 (electronic) |
DOI: | 10.1519/JSC.0000000000000768 |
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