Exercise | Control | p-value | |
Subjects n | 10 | 10 | |
Age years | 70±9 | 70±7 | 0.85 |
BMI kg·m−2 | 29±6 | 28±4 | 0.42 |
Charlson Comorbidity Index score | 4±1 | 4±1 | 0.83 |
Laboratory parameters | |||
Total cholesterol mg·dL−1 | 217±55 | 209±34 | 0.74 |
HDL mg·dL−1 | 71±32 | 53±11 | 0.17 |
Glucose mg·dL−1 | 99±13 | 104±6 | 0.42 |
Smokers | |||
Ex-smokers | 6 (60%) | 9 (90%) | |
Current smokers | 3 (30%) | 1 (10%) | |
Exposure pack-years | 50±28 | 41±19 | 0.40 |
Respiratory function | |||
FEV1 % pred | 56±13 | 62±13 | 0.33 |
Physical activity | |||
Average METs per day | 1.14±0.16 | 1.26±0.16 | 0.11 |
Steps per day | 4712±3035 | 6534±2702 | 0.17 |
Exercise capacity | |||
6MWT m | 351±66 | 398±49 | 0.09 |
Blood pressure mmHg | |||
Systolic/diastolic blood pressure at t0 | 140±20¶/80±7+ | 133±9/ 79±5 | 0.30/0.70 |
Systolic/diastolic blood pressure at t1 | 130±14¶/74±6+ | 131± 9/ 78±5 | 0.85/0.09 |
Endothelial function test | |||
t0 | |||
Baseline artery diameter mm | 3.9±0.7 | 4.4±0.6 | 0.13 |
FMD# % | 3.7±1.1 | 4.5±0.9 | 0.08 |
Time to peak s | 57±3 | 60±6 | 0.29 |
t1 | |||
Baseline artery diameter mm | 3.7±0.8 | 4.4±0.5 | 0.05 |
FMD# % | 6.7±2.2 | 4.1±0.9 | 0.003 |
Time to peak s | 55±4 | 61±6 | 0.03 |
ΔFMD t1−t0 | +3.04±1.97 | −0.37±0.73 | 0.00007 |
Data are presented as mean±sd unless otherwise stated. BMI: body mass index; HDL: high-density lipoprotein; FEV1: forced expiratory volume in 1 s; MET: metabolic equivalent of task; 6MWT: 6-min walking test; t0: baseline; t1: 8 weeks; FMD: flow-mediated dilation. #: corrected for baseline diameter; ¶: p=0.003 (at t0 versus t1); +: p=0.009 (at t0 versus t1).