| | Bill,
I checked out your concerns -- i.e., arterial stiffness, increased pulse pressure, increased cardiovascular risk (stemming from resistance training) -- and they seem to be unfounded. Where are you getting your information from?
Arterial stiffness Data on arterial stiffness from resistance training is equivocal at best.
Pulse Pressure Increased pulse pressure might be explained by lower diastolic pressure -- found in resistance trained subjects -- even while systolic pressure is lowered (just not as much as diastolic is lowered). This would make the finding of increased pulse pressure an innocuous, statistical artifact.
Of course, none of this pertains to John so much, as the main reason he does cardio is not to offset any spurious adverse effect of weight training, but more so that he can hit the weights even harder without getting winded.
Ed
Further Reading ================ Casey DP, Beck DT, Braith RW. Progressive resistance training without volume increases does not alter arterial stiffness and aortic wave reflection. Exp Biol Med (Maywood). 2007 Oct;232(9):1228-35.
Kawano H, Tanimoto M, Yamamoto K, Sanada K, Gando Y, Tabata I, Higuchi M, Miyachi M. Resistance training in men is associated with increased arterial stiffness and blood pressure but does not adversely affect endothelial function as measured by arterial reactivity to the cold pressor test. Exp Physiol. 2008 Feb;93(2):296-302.
Cortez-Cooper MY, Anton MM, Devan AE, Neidre DB, Cook JN, Tanaka H. The effects of strength training on central arterial compliance in middle-aged and older adults. Eur J Cardiovasc Prev Rehabil. 2008 Apr;15(2):149-55.
Collier SR, Kanaley JA, Carhart R Jr, Frechette V, Tobin MM, Hall AK, Luckenbaugh AN, Fernhall B. Effect of 4 weeks of aerobic or resistance exercise training on arterial stiffness, blood flow and blood pressure in pre- and stage-1 hypertensives. J Hum Hypertens. 2008 Oct;22(10):678-86.
Strasser B, Haber P, Strehblow C, Cauza E. The benefit of strength training on arterial blood pressure in patients with type 2 diabetes mellitus measured with ambulatory 24-hour blood pressure systems. Wien Med Wochenschr. 2008;158(13-14):379-84.
Yoshizawa M, Maeda S, Miyaki A, Misono M, Saito Y, Tanabe K, Kuno S, Ajisaka R. Effect of 12 weeks of moderate-intensity resistance training on arterial stiffness: a randomised controlled trial in women aged 32-59 years. Br J Sports Med. 2009 Aug;43(8):615-8.
Terra DF, Mota MR, Rabelo HT, Bezerra LM, Lima RM, Ribeiro AG, Vinhal PH, Dias RM, Silva FM. Reduction of arterial pressure and double product at rest after resistance exercise training in elderly hypertensive women. Arq Bras Cardiol. 2008 Nov;91(5):299-305.
Okamoto T, Masuhara M, Ikuta K. Home-based resistance training improves arterial stiffness in healthy premenopausal women. Eur J Appl Physiol. 2009 Sep;107(1):113-7.
Okamoto T, Masuhara M, Ikuta K. Upper but not lower limb resistance training increases arterial stiffness in humans. Eur J Appl Physiol. 2009 Sep;107(2):127-34.
Yoon ES, Jung SJ, Cheun SK, Oh YS, Kim SH, Jae SY. Effects of acute resistance exercise on arterial stiffness in young men. Korean Circ J. 2010 Jan;40(1):16-22.
Veloso J, Polito MD, Riera T, Celes R, Vidal JC, Bottaro M. [Effects of rest interval between exercise sets on blood pressure after resistance exercises] Arq Bras Cardiol. 2010 Apr;94(4):512-8.
Cardoso CG Jr, Gomides RS, Queiroz AC, Pinto LG, da Silveira Lobo F, Tinucci T, Mion D Jr, de Moraes Forjaz CL. Acute and chronic effects of aerobic and resistance exercise on ambulatory blood pressure. Clinics (Sao Paulo). 2010 Mar;65(3):317-25.
Queiroz AC, Kanegusuku H, Forjaz CL. Effects of resistance training on blood pressure in the elderly. Arq Bras Cardiol. 2010 Jul;95(1):135-40.
(Edited by Ed Thompson on 8/25, 6:27am)
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