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Effect of alternate nostril breathing on cardio respiratory parameters and muscle strength among rotating shift workers



Karthika Priyadharshini Udaykumar1, Kavitha Ukkirapandian2, Selvakumaran Selvaraj3 & Dhivya Kannan1



1Sri Venkateshwara Medical College Hospital & Research Centre, Pondicherry, India; 2Meenakshi Medical College Hospital & Research Institute, Kanchipuram, India; 3Indira Gandhi Govt Medical College Hospital & Research Institute, Pondicherry, India;



Email ID: karthi.karthiuday.uday@gmail.com; Email ID for communication: kavikrish.u@gmail.com


Article Type

Research Article



December 13, 2020; Revised February 24, 2020; Accepted February 27, 2020, Published February 28, 2021



Night shifts work in particular is the most frequent reasons for circadian rhythm disruption and subsequent psychological and physiological disturbances, especially increased risk of cardiovascular and respiratory ailments compared to daytime workers. Alternate nostril breathing for about 15 minutes was known to have effect over cardiac, respiratory parameters and muscle strength. Hence aim is of interest to assess the effects of alternate nostril breathing (ANB) on cardiorespiratory parameters and muscle strength among the rotating shift workers in the tertiary care hospital. This observational study was carried out in the department of Physiology after getting institutional ethical committee clearance. Around 140 rotating night shift workers of both sex of age 25-40 years with normal BMI and 140 non-shift workers age, sex and BMI matched were selected as study and control group respectively. Heart rate, blood Pressure, respiratory rate, peak expiratory flow rate, respiratory endurance, respiratory burst test, muscle strength and fatigue were recorded before and after 15 minutes of ANB. Shift workers were found to have significantly altered systolic (P=0.000) and diastolic (P=0.002) blood pressure and heart rate (P= 0.010) compared to non-shift workers. All the cardiorespiratory parameters and muscle strength, fatigue was found to be significantly (P< 0.05) altered after ANB between both shift and non- shift workers. ANB can be used as a therapeutic module among the shift workers, to maintain their sound health and to improve their performance in the night duty.



Night shift workers; alternate nostril breathing; cardiorespiratory parameters.



Udaykumar et al. Bioinformation 17(2): 320-325 (2021)


Edited by

P Kangueane






Biomedical Informatics



This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.