High-Intensity Progressive Resistance Training Increases Strength With No Change in Cardiovascular Function and Autonomic Neural Regulation in Older Adults.
| Autor: | Kanegusuku, Hélcio, Queiroz, Andréia C. C., Silva, Valdo J. D., de Mello, Marco T., Ugrinowitsch, Carlos, Forjaz, Cláudia L. M. |
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| Předmět: |
AUTONOMIC nervous system physiology
AGING AMBULATORY blood pressure monitoring ANALYSIS of variance ELECTROCARDIOGRAPHY EXERCISE HEMODYNAMICS LONGITUDINAL method MUSCLE strength RESEARCH funding STATISTICAL sampling STATISTICS TIME series analysis SAMPLE size (Statistics) DATA analysis BODY mass index RANDOMIZED controlled trials PRE-tests & post-tests DESCRIPTIVE statistics OLD age |
| Zdroj: | Journal of Aging & Physical Activity; Jul2015, Vol. 23 Issue 3, p339-345, 7p, 1 Diagram, 4 Charts, 1 Graph |
| Abstrakt: | The effects of high-intensity progressive resistance training (HIPRT) on cardiovascular function and autonomic neural regulation in older adults are unclear. To investigate this issue, 25 older adults were randomly divided into two groups: control (CON, N = 13, 63 ± 4 years; no training) and HIPRT (N = 12, 64 ± 4 years; 2 sessions/week, 7 exercises, 2-4 sets, 10-4 RM). Before and after four months, maximal strength, quadriceps cross-sectional area (QCSA), clinic and ambulatory blood pressures (BP), systemic hemodynamics, and cardiovascular autonomic modulation were measured. Maximal strength and QCSA increased in the HIPRT group and did not change in the CON group. Clinic and ambulatory BP, cardiac output, systemic vascular resistance, stroke volume, heart rate, and cardiac sympathovagal balance did not change in the HIPRT group or the CON group. In conclusion, HIPRT was effective at increasing muscle mass and strength without promoting changes in cardiovascular function or autonomic neural regulation. [ABSTRACT FROM AUTHOR] |
| Databáze: | Complementary Index |
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