High-Intensity Progressive Resistance Training Increases Strength With No Change in Cardiovascular Function and Autonomic Neural Regulation in Older Adults

Autor(es)

Kanegusuku, Helcio ^[1] ; Queiroz, Andreia C. C. ^[1] ; Silva, Valdo J. D. ^[2] ; de Mello, Marco T. ^[3] ; Ugrinowitsch, Carlos ^[4] ; Forjaz, Claudia L. M. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sch Phys Educ & Sport, Exercise Hemodynam Lab, Sao Paulo - Brazil

^[2] Univ Fed Triangulo Mineiro, Dept Biol Sci, Div Physiol, Uberaba - Brazil

^[3] Univ Fed Sao Paulo, Ctr Psychobiol & Exercise Studies, Sao Paulo - Brazil

^[4] Univ Sao Paulo, Sch Phys Educ & Sport, Neuromuscular Adaptat Lab, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF AGING AND PHYSICAL ACTIVITY; v. 23, n. 3, p. 339-345, JUL 2015.
• Citações Web of Science: 9

Resumo

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. (AU)

• Processo FAPESP: 07/00788-6 - Influencia dos treinamentos de forca e de potencia nas adaptacoes neurais, morfologicas, de rigidez e na realizacao das atividades da vida diaria em idosos.
• Beneficiário: Lilian França Wallerstein
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 07/56653-1 - Hipotensao pos-exercicio resistido em individuos idosos: caracterizacao e mecanismos.
• Beneficiário: Andréia Cristiane Carrenho Queiroz
• Modalidade de apoio: Bolsas no Brasil - Mestrado