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document
Resistance training increases basal limb blood flow and vascular conductance in aging humans . Age-related reductions in basal limb blood flow and vascular conductance are associated with the metabolic syndrome , functional impairments , and osteoporosis . We tested the hypothesis that a strength training program would increase basal femoral blood flow in aging adults . Twenty-six sedentary but healthy middle-aged and older subjects were randomly assigned to either a whole body strength training intervention group ( 52 +/- 2 yr , 3 men , 10 women ) who underwent three supervised resistance training sessions per week for 13 wk or a control group ( 53 +/- 2 yr , 4 men , 9 women ) who participated in a supervised stretching program . At baseline , there were no significant differences in blood pressure , cardiac output , basal femoral blood flow ( via Doppler ultrasound ) , vascular conductance , and vascular resistance between the two groups . The strength training group increased maximal strength in all the major muscle groups tested ( P < 0.05 ) . Whole body lean body mass increased ( P < 0.05 ) with strength training , but leg fat-free mass did not . Basal femoral blood flow and vascular conductance increased by 55-60 % after strength training ( both P < 0.05 ) . No such changes were observed in the control group . In both groups , there were no significant changes in brachial blood pressure , plasma endothelin-1 and angiotensin II concentrations , femoral artery wall thickness , cardiac output , and systemic vascular resistance . Our results indicate that short-term strength training increases basal femoral blood flow and vascular conductance in healthy middle-aged and older adults .
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Intervention_Physical
Resistance training
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Intervention_Physical
strength training program
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Intervention_Physical
whole body strength training
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Intervention_Physical
resistance training
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Intervention_Physical
strength training group
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Intervention_Physical
strength training
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Intervention_Physical
short-term strength training
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Outcome_Physical
basal femoral blood flow
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Outcome_Physical
blood pressure
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Outcome_Physical
cardiac output
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Outcome_Physical
basal femoral blood flow ( via Doppler ultrasound )
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Outcome_Physical
vascular conductance
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Outcome_Physical
vascular resistance
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Outcome_Physical
maximal strength
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Outcome_Physical
Whole body lean body mass
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Outcome_Physical
leg fat-free mass
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Outcome_Physical
Basal femoral blood flow and vascular conductance
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Outcome_Physical
brachial blood pressure
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Outcome_Physical
plasma endothelin-1 and angiotensin II concentrations
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Outcome_Physical
femoral artery wall thickness
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Outcome_Physical
cardiac output
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Outcome_Physical
systemic vascular resistance
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Participant_Condition
healthy middle-aged and older adults .