Individual Daytime Noise Exposure during Routine Activities and Heart Rate Variability in Adults: A Repeated Measures Study
Kraus, Ute; Schneider, A; Breitner, S; Hampel, R; Rueckerl, R; Pitz, M; Geruschkat, Uta; Belcredi, P; Radon, K; Peters, A
| HERO ID | 2640620 |
|---|---|
| In Press | No |
| Year | 2013 |
| Title | Individual Daytime Noise Exposure during Routine Activities and Heart Rate Variability in Adults: A Repeated Measures Study |
| Authors | Kraus, Ute; Schneider, A; Breitner, S; Hampel, R; Rueckerl, R; Pitz, M; Geruschkat, Uta; Belcredi, P; Radon, K; Peters, A |
| Journal | Environmental Health Perspectives |
| Volume | 121 |
| Issue | 5 |
| Page Numbers | 607-612 |
| Abstract | BACKGROUND: Epidemiological studies have demonstrated associations between noise exposure and cardiovascular events. However, there have been few studies of possible underlying mechanisms. <br> <br>OBJECTIVES: We examined the association between individual daytime noise exposure and heart rate variability (HRV). <br> <br>METHODS: In a prospective panel study in Augsburg, Germany (March 2007-December 2008), 110 individuals participated in 326 electrocardiogram recordings with a mean duration of 6 hr. Five-minute averages of heart rate (HR) and HRV parameters were determined. Individual noise exposure was measured as A-weighted equivalent continuous sound pressure levels (L-eq). Effects were estimated using additive mixed models adjusted for long-and short-term time trends and physical activity. Due to nonlinear exposure-response functions, we performed piecewise linear analyses with a cut-off point at 65 dB(A). <br> <br>RESULTS: Concurrent increases of 5dB(A) in L-eq < 65dB(A) were associated with increases in HR (percent change of mean value: 1.48%; 95% CI: 1.37, 1.60%) and the ratio of low-frequency (LF) to high-frequency (HF) power (4.89%; 95% CI: 3.48, 6.32%), and with decreases in LF (-3.77%; 95% CI: -5.49, -2.02%) and HF (-8.56%; 95% CI: -10.31, -6.78%) power. Standard deviation of normal-to-normal intervals (SDNN) was positively associated with concurrent noise < 65dB(A) (5.74%; 95% CI: 5.13, 6.36) but negatively associated with noise lagged by 5-15 min (-0.53% to -0.69%). Associations with cardiac function were less pronounced for noise >= 65dB(A), with some in opposite directions from associations with noise < 65dB(A). Concurrent associations were modified by sex and age. <br> <br>CONCLUSIONS: Individual daytime noise exposure was associated with immediate changes in HRV, suggesting a possible mechanism linking noise to cardiovascular risk. Noise at lower levels may have health consequences beyond those resulting from "fight-or-flight" responses to high levels of noise. |
| Doi | 10.1289/ehp.1205606 |
| Pmid | 23512292 |
| Wosid | WOS:000323707300025 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | autonomic nervous system; epidemiology; heart rate variability; noise exposure; short-term changes |