The results from this study suggest that abdominal muscle (ABD) recruitment during sleep is dependent on parafacial respiratory group (pFRG) activity and sleep state.
pFRG activity modulation does not impact on ABD recruitment during wakefulness or non-rapid-eye-movement sleep, but does during the rapid eye movement (REM) sleep state.
Why this matters
There has been little research examining the role of pFRG in ventilation and rhythm development across the various sleep states, and, as pFRG may play a vital role in these respiratory aspects, better understanding is greatly sought.
Enhanced understanding may give important insights that could lead to the development of alternative sleep apnea treatments.