Question - What is forced expiratory technique?

Answered by: Amy Richardson  |  Category: General  |  Last Updated: 29-06-2022  |  Views: 989  |  Total Questions: 14

The forced expiratory technique sometimes referred to as a 'huff', is used to help force secretions (phlegm) up the throat so it can be removed via the mouth without the pain of coughing. The technique is quite simple and involves imagining you a steaming up a mirror in front of you. Forced Expiration. Forced expiration is a simple but extremely useful pulmonary function test. In a normal forced expiration curve, the volume that the subject can expire in one second (referred to as FEV1) is usually about 80% of the total forced vital capacity (FVC), or something like four liters out of five. The equal pressure point is the point at which pressure inside the airway equals pressure outside (intrapleural pressure). During the course of a forced expiration the equal pressure point moves toward the alveoli and collapsible small airways. The Active Cycle of Breathing Techniques (ACBT) is an active breathing technique performed by the patient and can be used to mobilise and clear excess pulmonary secretions and to generally improve lung function. Each component can be used individually or as part of the ACBT cycle depending on the patient's problem. Percussion is a manual technique used by respiratory physiotherapists to help aid the clearance of secretions.

https://www.nursingtimes.net/clinical-archive/respiratory-clinical-archive/the-respiratory-system-pa

During forced expiration, areas in the medulla fire off impulses that contract the muscles of forced expiration - abdominal muscles and the internal intercostals.

https://courses.lumenlearning.com/suny-ap2/chapter/the-process-of-breathing-no-content/

Pulmonary ventilation consists of the process of inspiration (or inhalation), where air enters the lungs, and expiration (or exhalation), where air leaves the lungs. However, during forced exhalation, the internal intercostals and abdominal muscles may be involved in forcing air out of the lungs.

https://medlineplus.gov/ency/anatomyvideos/000018.htm

The process of breathing (respiration) is divided into two distinct phases, inspiration (inhalation) and expiration (exhalation). During inspiration, the diaphragm contracts and pulls downward while the muscles between the ribs contract and pull upward.

https://www.muscleandmotion.com/forced-inspiration-muscle-anatomy-diagrams/

Forced inspiration is the process in which you force the muscles to assist the primary muscle (diaphragm in a motion that you choose) this can be, in a lot of cases, deep breathing. Deep breathing helps the body in a number of ways and can even be linked to spiritual processes.

https://opentextbc.ca/anatomyandphysiology/chapter/22-3-the-process-of-breathing/

Pulmonary ventilation comprises two major steps: inspiration and expiration. Inspiration is the process that causes air to enter the lungs, and expiration is the process that causes air to leave the lungs (Figure 3). A respiratory cycle is one sequence of inspiration and expiration.

https://en.wikipedia.org/wiki/Spirometry

Forced expiratory volume in 1 second (FEV1) FEV1 is the volume of air that can forcibly be blown out in first 1 second, after full inspiration. Average values for FEV1 in healthy people depend mainly on sex and age, according to the diagram. Values of between 80% and 120% of the average value are considered normal.

https://www.mayoclinic.org/tests-procedures/spirometry/about/pac-20385201

Spirometry (spy-ROM-uh-tree) is a common office test used to assess how well your lungs work by measuring how much air you inhale, how much you exhale and how quickly you exhale. Spirometry is used to diagnose asthma, chronic obstructive pulmonary disease (COPD) and other conditions that affect breathing.

http://oac.med.jhmi.edu/res_phys/Encyclopedia/MusclesOfResp/MusclesOfResp.HTML

During active expiration, the most important muscles are those of the abdominal wall (including the rectus abdominus, internal and external obliques, and transversus abdominus), which drive intra-abdominal pressure up when they contract, and thus push up the diaphragm, raising pleural pressure, which raises alveolar

https://www.physio-pedia.com/Autogenic_Drainage

Autogenic drainage is a very controlled technique of breathing which uses different depths and speeds of exhaled breath to move mucus up the airways resulting in a spontaneous or voluntary cough. It can be used without help, but requires training, concentration and effort.

https://www.medicalnewstoday.com/articles/324417.php

The 4-7-8 breathing technique, also known as "relaxing breath, " involves breathing in for 4 seconds, holding the breath for 7 seconds, and exhaling for 8 seconds. This breathing pattern aims to reduce anxiety or help people get to sleep.

https://www.cff.org/Life-With-CF/Treatments-and-Therapies/Airway-Clearance/Coughing-and-Huffing/

Huffing. Huffing, also known as huff coughing, is a technique that helps move mucus from the lungs. It should be done in combination with another ACT. It involves taking a breath in, holding it, and actively exhaling.

https://www.webmd.com/balance/stress-management/stress-relief-breathing-techniques

Deep Breathing Get comfortable. You can lie on your back in bed or on the floor with a pillow under your head and knees. Breathe in through your nose. Let your belly fill with air. Breathe out through your nose. Place one hand on your belly. As you breathe in, feel your belly rise. Take three more full, deep breaths.

https://www.csun.edu/~vcoao0el/de361/de361s71_folder/tsld030.htm

When breathing for life, inhalation is active involving many muscles and exhalation is passive.

https://en.wikipedia.org/wiki/Pursed-lip_breathing

Pursed-lip breathing (PLB) is a breathing technique that consists of exhaling through tightly pressed (pursed) lips and inhaling through the nose with the mouth closed. The purpose of PLB is to create back-pressure inside airways to splint them open; moving air thus takes less work.