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. 2011 Feb 3;110(5):1181–1189. doi: 10.1152/japplphysiol.00836.2010

Table 1.

Forearm blood flow and vasodilation during exercise with balloon inflation

Baseline Exercise (control) Inflation (nadir) Inflation (steady state) Deflation (acute) Deflation (steady state)
Protocol 1 (n = 9)
20% MVC (no drug)
    FBF, ml/min 79 ± 8 372 ± 37a 181 ± 23b 360 ± 40d 481 ± 51c,d,f 464 ± 44c,d,f
    FVC, ml · min−1 · (100 mmHg)−1 89 ± 11 392 ± 33a 253 ± 25b 406 ± 38d 503 ± 51c,d,f 479 ± 41c,d
20% MVC (l-NMMA)
    FBF, ml/min 61 ± 9 356 ± 36a 159 ± 24b 306 ± 34d,h 416 ± 31d,f 435 ± 38c,d,f
    FVC, ml · min−1 · (100 mmHg)−1 66 ± 9 370 ± 33a 242 ± 27b 347 ± 34d,h 433 ± 32d,f 442 ± 36c,d,f
20% MVC (l-NMMA + aminophylline)
    FBF, ml/min 123 ± 17g 388 ± 32a 185 ± 25b 286 ± 40c,e,h 467 ± 42d,f 453 ± 39d,f
    FVC, ml · min−1 · (100 mmHg)−1 133 ± 20g 398 ± 30a 251 ± 29b 333 ± 36h 481 ± 46d,f 460 ± 40d,f
Protocol 2 (n = 7)
20% MVC (no drug)
    FBF, ml/min 86 ± 13 545 ± 29a 272 ± 24b 532 ± 28d 629 ± 53c,d,f 614 ± 48d,f
    FVC, ml · min−1 · (100 mmHg)−1 95 ± 13 583 ± 26a 386 ± 27b 605 ± 28d 660 ± 49c,d 639 ± 43d
20% MVC (aminophylline)
    FBF, ml/min 120 ± 17h 562 ± 35a 289 ± 23b 462 ± 30e,h 693 ± 74c,df 642 ± 48d,f
    FVC, ml · min−1 · (100 mmHg)−1 130 ± 17h 588 ± 42a 424 ± 28b 547 ± 32e,h 710 ± 64c,d,f 649 ± 44d
20% MVC (aminophylline + l-NMMA)
    FBF, ml/min 112 ± 17 548 ± 39a 245 ± 13b 376 ± 41c,g 714 ± 74c,d,f 644 ± 57d,f
    FVC, ml · min−1 · (100 mmHg)−1 120 ± 22 555 ± 38a 361 ± 17b 453 ± 31g 734 ± 76c,d,f 630 ± 45d,f

Values are means ± SE for n subjects. FBF, forearm blood flow; FVC, forearm vascular conductance; l-NMMA, Ng-monomethyl-l-arginine; MVC, maximal voluntary contraction.

a

P < 0.001 vs. baseline;

b

P < 0.001 vs. exercise (control);

c

P < 0.05 vs. exercise;

d

P < 0.001 vs. nadir;

e

P < 0.05 vs. nadir;

f

P < 0.05 vs. inflation (steady state);

g

P < 0.05 vs. other trials;

h

P < 0.05 vs. no-drug trial.