Affiliations: [a] Exercise Research Laboratory, Physical Education
School, Federal University of Rio Grande do Sul – UFRGS, Porto Alegre,
Brazil | [b] Federal University of Vale do São Francisco
– UNIVASF, Petrolina, Brazil | [c] Federal Institute of Education Science and Technology
Farroupilha – IFF, Alegrete, Brazil
Note: [] Corresponding author: Eurico Nestor Wilhelm, Exercise Research
Laboratory, School of Physical Education, Federal University of Rio Grande do
Sul, Felizardo Street, 750, Jardim Botânico, CEP: 90690-200, Porto
Alegre, RS, Brazil. Tel.: +55 11 51 33085845; Fax: +55 11 51 33085843; E-mail:
euricowilhelm@gmail.com
Abstract: BACKGROUND AND OBJECTIVE: The extent to which moderate intensity
running or cycling impact subsequent maximal neuromuscular performance is
unclear. Thus, the aim of the present study was to evaluate the effect of
moderate intensity and volume running and cycling on maximal and explosive
muscle strength. METHODS: Ten young physically active men were recruited and had
their knee extension isometric peak torque, rate of torque development (RTD),
and counter movement jump height measured at a
baseline reference condition (REF) and after moderate intensity 30 min running
(RUN) or cycling (CYC). Electromyographic activity of the quadriceps muscles
was obtained during the isometric tests. RESULTS: No significant differences were found between
conditions for isometric peak torque (p> 0.05), RTD (p> 0.05),
countermovement jump (p> 0.05), and the electromyographic amplitude (p>
0.05). CONCLUSION: The present data indicate that maximal and explosive
lower limb muscle strength is not compromised after 30 minutes of moderate
intensity continuous exercise, independent of the mode of the exercise
performed.
