Research article - (2007)06, 560 - 567
High-Velocity Resistance Exercise Protocols in Older Women: Effects on Cardiovascular Response
Rodrigo P. da Silva1,3,, Jefferson Novaes2, Ricardo J. Oliveira3, Paulo Gentil4, Dale Wagner5, Martim Bottaro4
1College of Physical Education, Faculdades Unidas do Norte de Minas, Brazil
2Graduate School of Physical Education, Federal University of Rio de Janeiro, Brazil
3Graduate School of Physical Education, Catholic University of Brasilia, Brazil
4College of Physical Education, University of Brasilia, Brazil
5Dept. of Health, Physical Education, and Recreation, Utah State University, USA

Rodrigo P. da Silva
✉ Av. Dr. Sidney Chaves n° 1280, Apt. 206 Bloco B 39400-000, Montes Claros, MG, Brazil.
Email: lacif_pesquisa@yahoo.com.br
Received: 06-08-2007 -- Accepted: 15-10-2007
Published (online): 01-12-2007

ABSTRACT

Acute cardiovascular responses to different high-velocity resistance exercise protocols were compared in untrained older women. Twelve apparently healthy volunteers (62.6 ± 2.9 y) performed three different protocols in the bench press (BP). All protocols involved three sets of 10 repetitions performed with a 10RM load and 2 minutes of rest between sets. The continuous protocol (CP) involved ten repetitions with no pause between repetitions. The discontinuous protocols were performed with a pause of five (DP5) or 15 (DP15) seconds between the fifth and sixth repetitions. Heart rate (HR), systolic blood pressure (SBP), rate pressure product (RPP), Rating of Perceived Exertion (RPE), and blood lactate (BLa) were assessed at baseline and at the end of all exercise sets. Factorial ANOVA was used to compare the cardiovascular response among different protocols. Compared to baseline, HR and RPP were significantly (p < 0.05) higher after the third set in all protocols. HR and RPP were significantly (p < 0.05) lower in DP5 and DP15 compared with CP for the BP exercise. Compared to baseline, RPE increased significantly (p < 0.05) with each subsequent set in all protocols. Blood lactate concentration during DP5 and DP15 was significantly lower than CP. It appears that discontinuous high-velocity resistance exercise has a lower cardiovascular demand than continuous resistance exercise in older women.

Key words: Aging, weight training, blood pressure, heart rate, perceived exertion

Key Points
  • The assessment of cardiovascular responses to high-velocity resistance exercise in older individuals is very important for exercise prescription and rehabilitation in elderly population.
  • Discontinuous protocol decrease myocardial oxygen consumption (HR x SBP) during the performance of dynamic high-velocity resistance exercise in older women.
  • The decrease in RPP (~ 8.5%) during the discontinuous protocol has clinical implications when developing high-velocity resistance exercise strategies for elderly individuals.








Back
|
Full Text
|
PDF
|
Share