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Título
Acute and Delayed Effects of Time-Matched Very Short “All Out” Efforts in Concentric vs. Eccentric Cycling
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
International Journal of Environmental Research and Public Health
Número de la revista
15
Cita Bibliográfica
Dragutinovic, B.; Deutsch, J.; Held, S.; Donath, L.; Bloch, W.; Schumann, M.; Boullosa Álvarez, D. A. (2021). Acute and Delayed Effects of Time-Matched Very Short “All Out” Efforts in Concentric vs. Eccentric Cycling. International Journal of Environmental Research and Public Health, 18
Editorial
MDPI
Fecha
2021
Resumen
[EN] Abstract: Background: To the authors’ knowledge, there have been no studies comparing the acute
responses to “all out” efforts in concentric (isoinertial) vs. eccentric (isovelocity) cycling. Methods:
After two familiarization sessions, 12 physically active men underwent the experimental protocols
consisting of a 2-min warm-up and 8 maximal efforts of 5 s, separated by 55 s of active recovery
at 80 rpm , in concentric vs. eccentric cycling. Comparisons between protocols were conducted
during, immediately after, and 24-h post-sessions. Results: Mechanical (Work: 82,824 ± 6350 vs.
60,602 ± 8904 J) and cardiometabolic responses (mean HR: 68.8 ± 6.6 vs. 51.3 ± 5.7% HRmax, lac-
tate: 4.9 ± 2.1 vs. 1.8 ± 0.6 mmol/L) were larger in concentric cycling (p < 0.001). The perceptual
responses to both protocols were similarly low. Immediately after concentric cycling, vertical jump
was potentiated (p = 0.028). Muscle soreness (VAS; p = 0.016) and thigh circumference (p = 0.045)
were slightly increased only 24-h after eccentric cycling. Serum concentrations of CK, BAG3, and
MMP-13 did not change significantly post-exercise. Conclusions: These results suggest the appro-
priateness of the eccentric cycling protocol used as a time-efficient (i.e., ~60 kJ in 10 min) and safe
(i.e., without exercise-induced muscle damage) alternative to be used with different populations in
future longitudinal interventions.
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