Written by Lisa Grimmer, Elements Physical Therapist
With working and being at home more, many of us find ourselves sitting more, exercising less, and slouching toward screens or books. All of these changes in habits affect our posture, affect our voice, and affect our breath.

Posture, voice, and breath are intimately connected. To get a more practical sense, let’s try an experiment.
Voice and Posture:
- Sit down with your neck tipped forward, your shoulders slumped, and your feet tucked under your chair. Try to call out your favorite book title or sing your favorite song. Not so easy, is it?
Let’s try again.
- Sit down and find even weight on both sit bones. Make sure your knees are lower than your hips. A wedge pillow or small blanket can help with this. Ground both feet flat into the floor, and find one hand on each leg, not crossed. Feel your shoulders stack over your hips, and the back of your neck lengthen.
Now try.
Did it feel easier to speak? By changing our alignment, we can find an effortless way to improve speaking volume. Further work can be done by improving our core strength and improving the quality of our breath.
Breath:
Changing our breath can also change our internal chemistry. If you breathe too much, or hyperventilate, you increase your blood pH. You may become lightheaded or even have tingling in your fingers. If you breathe too little, or hypo-ventilate, your blood pH decreases. Effects of hypo-ventilation include fatigue and increased anxiety.
One way to improve our breath is through a diaphragmatic breathing practice. Diaphragmatic breathing has been shown to decrease cortisol levels (stress hormones), improve attention, and improve mood in both children and adults.
While a steady practice is most helpful for long term effects, including improved sleep, a single session of breathing for 15 minutes reduces blood pressure, increases oxygenation, enhances lung function, and improves cardio-respiratory fitness and respiratory muscle strength.
The muscles:
When we breathe in, we use our diaphragm and external intercostals (muscles between our ribs). Normal, relaxed expiration is passive, meaning we don’t have to forcefully exhale. When you inhale, your diaphragm contracts (tightens) and moves downward. This creates more space in your chest cavity, allowing the lungs to expand. When you exhale, the opposite happens — your diaphragm relaxes and moves upward in the chest cavity. However, if we choose to forcefully exhale, we use the internal intercostals, intercostalis intimi, subcostals, and the abdominal muscles. You may have noticed it’s an easy way to increase your abdominal contraction with a “pursed lip” breath- that helps recruit the abs for your exhale.
While we have our main muscles of inspiration, we also have accessory muscles, including the sternocleidomastoid, the scalenes, pectoralis major and minor, as well the inferior fibers of serratus anterior and your latissimus dorsi. Typically, we use these when we are breathing hard – think at the end of a race, when you’re recruiting everything you can. For some of us, whether due to posture or habit, we begin to rely on these muscles for much more. You may notice your shoulders shrugging up and down with your breath when you’re stressed. You may also notice this group of muscles kicking in with abdominal work – when we try to stabilize the core, we’ll try anything to help us out! Luckily, both in regard to breathing and abdominal work, we can train ourselves to decrease compensation with our neck muscles.
The Technique:
Lie on your back on a comfortable surface with a pillow under your knees. Place one hand by your heart, and the other just below your ribs. Breathe in slowly so your belly expands, while your chest stays still. If you notice a lift in your chest, that is recruitment of the secondary respiratory muscles. Initially, this exercise can be quite tiring – both on the brain and the body! As you practice 5-10 minutes, up to 3-4 times a day, you’ll notice it becomes easier. You can also work up to a 15 minute session for extra stress-relieving benefits. Once you’ve mastered breathing on your back, you can either add a book on top of your belly for extra resistance, or try the same technique seated in a chair.
Now you’re set! Take a look at your computer setup, your reading chair, and make sure to sit tall. With these tweaks in posture and techniques in breath, you’re ready to tackle your Zoom and FaceTime calls with ease.
Refernces:
Ma X, Yue ZQ, Gong ZQ, et al. The Effect of Diaphragmatic Breathing on Attention, Negative Affect and Stress in Healthy Adults. Front Psychol. 2017;8:874. Published 2017 Jun 6. doi:10.3389/fpsyg.2017.00874
Russo MA, Santarelli DM, O’Rourke D. The physiological effects of slow breathing in the healthy human. Breathe (Sheff). 2017;13(4):298-309. doi:10.1183/20734735.009817
Diaphragmatic Breathing. https://my.clevelandclinic.org/health/articles/9445-diaphragmatic-breathing Last modified 2018 Jun 14. Accessed 6/28/20.
Johns, Catherine. Can You Really Speak Well Sitting Down. https://catherinejohns.com/can-you-really-speak-well-sitting-down/ Accessed 7/2/20
Muscles of respiration. https://www.physio-pedia.com/Muscles_of_Respiration#cite_note-:0-2 Accessed 6/25/20.








variation, stretch only: ~Hip flexors stretch – seated lunge. If it is too difficult to stand this can be performed sitting on the side of a chair. Or hold on to a chair for balance.


























