Evaluation of blood Pressure changes on exposure to sound frequencies in the youths of different ethnicity
Keywords:Blood pressure: sound: ethnicity: systolic: diastolic
Objectives: To analyse the effect of exposure to different sounds of various frequencies on the blood pressure level of participants.
Methods: Present study involved 160 medical students belonging to four ethnic races (Malay, Chinese, Malaysian Indians, Sri Lankans). Informed consent and the record of normal blood pressure was obtained before the study. Participants were exposed to three different sounds (Traffic sounds of high noise frequency; Waterfall sound of moderate noise frequency; Night sound in woods of low noise frequency) with specified intervals. The systolic (SBP) and diastolic blood pressure (DBP) of all the participants were recorded after each exposure. Data of SBP and DBP was analysed statistically by repeated measures ANOVA using SPSS.
Results: Results showed statistically significant (p<0.001) difference in the average SBP, DBP values from pre to post assessment in all different exposed sounds. While a significant difference (p<0.01) in the mean SBP values were noted for sound 1 and sound 3; the similar difference (p<0.05) in the average DBP values was noted only for sound 3 between the ethnicities. Data showed a rise in BP for sound 1 in all ethnicities except Malays, fall in BP upon the exposure to sound 2 and 3 among all the ethnicities.
Conclusion: Exposure to different sounds was found to have a remarkable effect on individual’s blood pressure. However, its comparison with ethnicities is quite variable. Adverse effects of various sound exposures on the blood pressure levels of student population is crucial in terms of their curricular and physiological activities.
Bangladesh Journal of Medical Science Vol. 21 No. 04 October’22 Page : 825-828
How to Cite
Copyright (c) 2022 Naveen Kumar, Viniitha Jagatheesan, HewageMethsithini M Rodrigo, VM Kavithevan, Jonathan Wee TS, AshwiniAithal P, Melissa Glenda Lewis
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish in the Bangladesh Journal of Medical Science agree to the following terms that:
- Authors retain copyright and grant Bangladesh Journal of Medical Science the right of first publication of the work.
Articles in Bangladesh Journal of Medical Science are licensed under a Creative Commons Attribution 4.0 International License CC BY-4.0.This license permits use, distribution and reproduction in any medium, provided the original work is properly cited.
- Authors are able to enter into separate, additional contractual arrangements for the distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted to post their work online (e.g., in institutional repositories or on their website) as it can lead to productive exchanges, as well as greater citation of published work.