which enters the blood increased from 250 ml/min
into 4000 ml/minute. The amount of CO
2
that was
moved from every unit of blood increases, the
excretion of CO
2
increased from 200 ml/min into
8000 ml/minute. The increase of O
2
is in proportion
to the workload so that it can be maximum (Barrett
et. al 2012).
This theory is in accordance with the research
conducted by Sahat (2011) which explained that
gymnastics asthma continually applied during 8
weeks where a week involving three times
gymnastics can improve the lung function up to
11.9%.
Singer in the Gita Sasmita Choir in singing
exercises has been divided into several part of
activities. Firstly, it consists of warming up or
stretching the muscles involving the head, hands and
feet. This warming is done more or less in 15-20
seconds. Next, it consists of the process of taking a
tone on each type of sound. The breathing
techniques used is diaphragmatic breathing. The
position of the body at the exercise is standing. After
the tone of each kind of sound obtained, then singing
exercise is started. The number of songs sung in
each exercise range between 4-6 songs with different
genres.
Another thing that must be mastered by the
qori/qoriah is articulation. Articulation or
pronunciation in reciting Qur'an is also important to
produce the perfect sound. In addition, qori/qoriah
should also understand the makhorijul alphabet. they
are places discharge letters at the time the letter is
emitted. Reciting Qur'an is required to sound the
letters in accordance with makhraj, because if there
are errors in pronouncing the letter, then it will give
a different meaning (Suwarno, 2016).
The singer's body position at exercise time is the
standing body position, while qoriah is seated,
however, the average value of the PEFR of qoriah
group was higher than the singer group. However,
the research was not in line with the previous theory.
The increase of pressure due to gravity affects the
volume of effective blood circulation in several
ways. First of all, the increased hydrostatic pressure
that occurs in the foot when someone stands will
push out vein walls thus it causes distention, in
consequence, his/her blood clotted in the vein
vessels. Some of the blood that comes from the
capillaries will go into the venous vessels is wider
rather than it comes back to the heart. At the same
time, the increased capillary pressure caused by the
force of gravity causes the increased filtration of
fluids from the capillaries into the interstitial space.
Since the blood clotted in a vein and capillary
filtration enhancement, they will reduce the volume
of effective blood circulation. Whereas, in the sitting
position, the center of gravity is at the anterior part
of ischia and around 25% of the body weight is
transmitted down through the lower extremity so
that the parts of body are in a relax condition
(Manembu, Rumampuk, Danes & 2015).
This study showed singing had no impact to
PEFR, it was opposite to other research. As a
research conducted by Price K, Scharzt P., Watson
A.H (2014) explained that the value of the Force
Expiration Volume (FEV) is lower in sitting position
rather than in Standing positions. In another research
found sitting and standing position had no impact to
PEF (McCoy et.al, 2010). This happens because
physical activity is more frequently performed on
standing position. The diaphragm will go down
when the body is at a standing position so that the
capacity of the thoracic cavity increases. Whereas,
when the body thoroughly lies, the abdomen presses
the diaphragm so that it is resulted a decrease of
thoracic capacity. When standing abdominal wall
needs to resolve the tension in order to push the
diaphragm to raise as that is why the activity of the
abdominal muscles bigger (although the abdominal
circumference is lower) than sitting (k. Price,
Schartz, & Watson, 2014)
The hypothesis that can be inferred by the
researcher was the existence of significant difference
between the average value of PEFR of both singer
and qoriah where the qoriah’s PEFR is higher than
singer is because there are several conditions that
must be obeyed by a qoriah in reciting Qur'an which
is different from a singer. Qoriah has to master the
science of recitation as if only beautifying the
sounds of reciting Qur'an but ignoring tajwid then
reciting it will be
haram or illegitimate (Tamrin,
2016). In addition, each letter of Qur'an reading
should be in accordance with makhorijul alphabet so
that the readings will be in accordance with the
meaning. Good articulation is needed in order to
produce perfect sound. Clear intonation in reciting
Qur’an is also required to fit with wazan mad and
qoshr so it will be able to create harmony in reciting
Qur'an.
5 CONCLUSION
From this study, it can be concluded that singing and
reciting Al Qur’an can effect on PEFR values.
Reciting Al Qur’an has better effect than singing on
PEFR. It can be applied for asthma’s patient to
improve their PEFR.