Acute and Delayed Effects of Time-Matched Very Short 'All Out' Efforts in Concentric vs. Eccentric Cycling
| Autor: | Lars Donath, Jan-Philip Deutsch, Daniel Boullosa, Steffen Held, Boris Dragutinovic, Wilhelm Bloch, Moritz Schumann |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Male
medicine.medical_specialty Health Toxicology and Mutagenesis post-activation performance enhancement Concentric Muscle damage Article 03 medical and health sciences Vertical jump 0302 clinical medicine Internal medicine Medicine Eccentric Humans Lactic Acid Muscle Skeletal Thigh circumference Exercise high-intensity interval training Adaptor Proteins Signal Transducing exercise-induced muscle damage Muscle fatigue business.industry Public Health Environmental and Occupational Health sprint interval training 030229 sport sciences Myalgia Cardiology muscle fatigue business Cycling Apoptosis Regulatory Proteins High-intensity interval training 030217 neurology & neurosurgery |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 18, Iss 7968, p 7968 (2021) International Journal of Environmental Research and Public Health Volume 18 Issue 15 |
| ISSN: | 1661-7827 1660-4601 |
| Popis: | 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, lactate: 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 appropriateness 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. |
| Databáze: | OpenAIRE |
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