Abstract：
:The importance of accumulated time ≥90% of maximal oxygen consumption (VO2max ) to improve performance in well-trained endurance athletes is well established. The present study compared the acute effects of adding vibrations (VIB; 40 Hz) with the work intervals during a high-intensity cycling session (HIT) with a traditional HIT session without vibration (TRAD) on time ≥90% of VO2max , time ≥90% of peak heart rate (HRpeak ), electromyography (EMG) activity, and mean power in well-trained cyclists (n = 10, VO2max =78.6 ± 7.4 mL/min/kg). The order of VIB and TRAD was randomized and consisted of 6 × 5-minutes work intervals performed with the highest possible mean power across the work intervals (2.5-minutes standardized relief periods). VIB was superior to TRAD on time ≥90% of VO2max , (10.99 ± 7.00 vs 6.95 ± 5.28 minutes, respectively), time ≥90% of HRpeak (24.61 ± 2.38 vs 19.97 ± 4.12 minutes, respectively), and averaged EMG activity in m. Vastus Lateralis during the work intervals (all P < 0.05). The EMG/power output ratio across all work intervals was higher in VIB than TRAD (P < 0.05). Mean values across work intervals showed no difference between VIB and TRAD in mean power, rate of perceived exertion, or blood lactate concentration. Thus, the present study indicated that adding vibration to the work intervals during a HIT session can acutely increase the physiological responses of the cardiovascular system and increase time ≥90% VO2max and should therefore be considered in order to optimize the exercise stimulus of well-trained cyclists.
journal_name
Scand J Med Sci Sportsjournal_title
Scandinavian journal of medicine & science in sportsauthors
Rønnestad BR,Moen M,Gunnerød S,Øfsteng Sdoi
10.1111/sms.13277subject
Has Abstractpub_date
2018-12-01 00:00:00pages
2473-2480issue
12eissn
0905-7188issn
1600-0838journal_volume
28pub_type
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