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(sEM 0.82) at 8mmHg, 5.67o7o (SEM 0.86) at l2mmHg and then 5.53Vo (SEM 0.95) at
l6mmHg. There was also a tendency for the duration of exhalation to decrease, from 49'9
seconds (SEM 4.9) at4mmHg, 49.6 seconds (SEM 5.6) at 8mmHg, 44'2 seconds (SEM 6'3)
at l2mmHg to 40.9 seconds (SEM 5.5) at 16mmHg'
Figure 7.4: Exhaled No results at increasing expiratory mouth pressure
160
ll
& 140
.E tzo
E 100
o80
=60 *40 s
fi200
Mean peak exhaled NO levels at different expiratory mouth pressures for ten individuals (eight
females). Each point is the mean of five exhalations'
TableZ.2:Comparison of the first and repeated last set of exhalations at the same expiratory flow
Sublect Gender Age Expiratory
flow
48tz
Explratory mouth Pl€ssure in mmHg
Flrst Set of Exhalations
Nolcorlorttn'
NO is measured as peak No in parts per billion, coz is measured as peak coz as the percentage of
ioLt gir"r, duration is measured in seconds. Lach resutt is the mean of five exhalations for every
subject. a. Duratn = duration of exhalation.
161
Last
NO
iet of Exhalatlons
Co, Durtn
I
1 Female 32 250mls/min 23 4.7 57 28 4.5 51
3 Male 37 250mls/min 78 6.0 56 80 5.9 58
5 Female 43 250mls/min 31 6.2 55 28 5.4 57
6 Female 32 250mls/min 147 6.2 63 145 6.3 64
7 Female 37 250mls/min 83 5.7 50 111 5.8 47
I Female 35 250mls/min 't43 6.4 7',! 167 6.1 66
10 Female 36 250mls/min 30 6.1 58 30 5.7 54
2 Male 33 1100mls/min 77 6.2 51 75 6.7 55
4 Male 49 1100mls/min 70 6.0 61 65 5.8 60
I Male 43 1100mls/min 38 7.0 71 34 6.8 74