Delmonico MJ, Ferrell RE, Meerasahib A, Martel GF, Roth SM, Kostek MC, Hurley BF. Blood pressure response to strength training may be influenced by angiotensinogen A-20C and angiotensin II type I receptor A1166C genotypes in older men and women.
J Am Geriatr Soc 2005;
53:204-10. [PMID:
15673342 DOI:
10.1111/j.1532-5415.2005.53104.x]
[Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVES
To determine the influence of angiotensinogen (AGT) A-20C, M235 T, and angiotensin II type 1 receptor (AGTR1) A1166C genotypes on resting blood pressure (BP) response to strength training (ST) in older men and women.
DESIGN
Prospective intervention study with retrospective genotyping.
SETTING
University of Maryland Exercise Physiology Laboratory.
PARTICIPANTS
Seventy sedentary, healthy older men (n=34) and women (n=36).
INTERVENTION
Approximately 23 weeks of ST performed 3 days per week.
MEASUREMENTS
Resting BP was measured on six separate occasions before and after ST for each subject. AGT and AGTR1 genotyping was performed retrospectively from each subject's genomic deoxyribonucleic acid.
RESULTS
Systolic BP decreased in C-allele carriers at the AGT A-20C locus with ST (122+/-1 to 116+/-2 mmHg, P<.05), which was significantly greater than the decrease in the A homozygotes (126+/-1 to 123+/-1 mmHg, P<.05). At the AGTR1 A1166C locus, diastolic BP decreased to a greater extent in the C-allele carriers (76+/-1 to 70+/-2 mmHg, P<.05) than in the A homozygotes (75+/-1 to 72+/-1 mmHg, P<.05).
CONCLUSION
The AGT A-20C and AGTR1 A1166C genotypes may influence resting BP response to ST, such that C-allele carriers at each of these loci reduce their resting BP in response to ST to a greater extent than A homozygotes.
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