Effects of eccentric and concentric resistance training on arterial stiffness

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Abstract:

" It has been suggested that resistance training (RT) increases

arterial stiffness. The purpose of the present study was to clarify

the effect of eccentric RT (ERT) and concentric RT (CRT) on arterial

stiffness in female adults by an interventional study. In total, 29

healthy female subjects were randomly assigned to either the ERT

group (n=10), CRT group (n=10) or sedentary (SED) group (n=9). The

ERT and CRT groups performed resistance training three times a week

for 8 weeks. We determined brachial blood pressure, brachial-ankle

pulse wave velocity (baPWV), carotid artery intimamedial thickness

(IMT) and carotid arterial lumen diameter before and after training

and after detraining. The before-training baPWV did not differ

significantly among the three groups. After 8 weeks of RT, arterial

stiffness in the CRT group was increased compared with the ERT and

SED group (P<0.05). However, brachial blood pressure, baPWV, carotid

IMT and carotid lumen diameter in the ERT and CRT groups were

unchanged by RT for 8 weeks. Consequently, it was clarified that

arterial stiffness was not changed by ERT for 8 weeks. This suggests

that ERT may be effective as an exercise prescription for middle-aged

and elderly adults. "

PMID 16496019

See also: PMID 16398669

Rodney.