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Examining the Relationship Between Pulse Wave Characteristics and Components of Body Composition Among College Aged Vapers and Non-vapers

Abstract

Background

The purpose of this investigation was to examine the relationship between pulse wave characteristics (i.e., pulse wave velocity and pulse wave analysis) and body composition (i.e., body fat percentage [BF%], visceral fat percentage [VF%], and bone mineral density [BMD]) among college-aged vapers and non-vapers. Seventy-four females were classified as a vaper or non-vaper and completed a dual energy x-ray absorptiometry scan and arterial stiffness assessment. All body composition variables were collapsed into tertiles (i.e., low, moderate and high) and separate two-way, 2 (Group [vaper, non-vaper]) × 3 (Rank [low, moderate, high]) ANOVAs were performed.

Results

There were significant (p = 0.005–0.031) interactions for VF%, whereby greater brachial diastolic blood pressure (BDBP), central diastolic blood pressure (CDBP), and central mean arterial pressure (CMAP) was observed among vapers classified has HighVF% (77.9 ± 8.9 mmHg, 78.5 ± 9.0 mmHg, 93.5 ± 9.4 mmHg, respectively) compared to ModerateVF% (66.5 ± 9.3 mmHg, 67.5 ± 9.4 mmHg, 81.5 ± 8.9 mmHg, respectively). For BMD, there were significant (p = 0.010–0.040) main effects of Rank, whereby, BDBP and CDBP were greater among LowBMD (75.1 ± 7.2 mmHg and 76.4 ± 7.2 mmHg, respectively) compared to ModerateBMD (71.3 ± 6.6 mmHg and 72.0 ± 6.6 mmHg, respectively).

Conclusion

Greater VF%, along with vaping status induced adverse values for pulse wave characteristics, while BF% and BMD did not have a relationship with vaping status. Additionally, there were no differences among non-vapers with high VF%, suggesting vaping status further impacts pulse wave characteristics.

1 Background

Electronic cigarettes (i.e., vape devices) are commonly used amongst college students [1]. These devices are typically powered by a lithium-ion battery which heat liquids to different temperatures that contain varying levels of nicotine, flavourings, and propellants [2, 3]. Across all users, young adults gravitate towards vaping for a variety of reasons. These reasons include, but are not limited to peer pressure, weight loss, energy, and focus [4, 5]. Although there is less known regarding the chronic impacts associated with vaping due to its novelty, previous investigations examining the acute effects have shown the detrimental consequences to the vasculature [6, 7].

Additives within nicotine (i.e., propylene glycol/glycerol and nicotine) have been shown to impact pulmonary function, such that acute vaping of propylene glycol/glycerol aerosol at high wattage with or without nicotine can induce airway epithelial injury and sustained levels of low transcutaneous oxygen tension [8]. The effects of propylene glycol/glycerol on the vasculature, however, is not clear. For example, acute vaping of propylene glycol/glycerol with nicotine has been shown to lead to increases arterial stiffness (AS) (measured via pulse wave velocity [PWV]) (pre: 4.9 ± 0.1 m/s−1 versus post: 5.3 ± 0.1 m/s−1) relative to vaping without nicotine (pre: 5.1 ± 0.1 m/s−1 versus post: 5.3 ± 0.1 m/s−1) [9]. Further, vaping liquid that contains propylene glycol/glycerol has been shown to cause endothelial cell dysfunction [10] and lead to increases brachial systolic blood pressure (BSBP) (pre: 120 ± 5 mmHg versus post: 126 ± 5 mmHg), brachial diastolic blood pressure (BDBP) (pre: 66 ± 3 mmHg versus post: 72 ± 2 mmHg), and central mean arterial pressure (CMAP) (pre: 86 ± 3 mmHg versus post: 92 ± 3 mmHg) in young adults [11]. Additionally, following an acute session of vaping, there were significant increases in carotid-femoral PWV (pre: 8.2 ± 0.26 m/s−1 versus post: 8.94 ± 0.33 m/s−1) and augmentation index at 75 beats per minute (AIx 75) (pre: 7.97 ± 2.97% versus post: 13.55 ± 3.24%) [12]. Thus, vaping seems to be detrimental to the vasculature by augmenting various pulse wave characteristics (i.e., greater BSBP, BDBP, CMAP, PWV, and AIx 75) [9,10,11,12].

Along with vaping, there are other factors that affect AS which include modifiable (e.g., body fat) and non-modifiable (e.g., age) risk factors. Of the modifiable risk factors, maintaining a healthy body composition is critical as high body fat levels have been shown to increase AS [13,14,15,16,17,18]. However, much of this literature focuses on older, obese, and clinical populations which therefore limits its application to other populations, such as young adults. Alternatively, there have been investigations looking at the relationship between vaping and different levels of body fat in younger populations. For example, obese subjects had a greater odds ratio (OR) of using cigarettes/vape devices compared to other substances (OR = 4.4) and alcohol (OR = 1.94) [19]. Additionally, young adults who reported vaping tended to exhibit unhealthy habits, such as smoking and alcohol consumption, whose combination may contribute to overall higher levels of body fat accumulation [20].

Although there is evidence that both vaping and poor body composition independently affect pulse wave characteristics, it is unknown how the relationship of different body composition variables affects pulse wave characteristics in those who vape. Additionally, previous investigations have examined these relationships separately [9,10,11,12,13,14,15,16,17,18], thus limiting our understanding of the potential impact other body composition variables (e.g., visceral fat percentage [VF%] and bone mineral density [BMD]) might have on pulse wave characteristics in young adults. The purpose of this investigation was to examine the relationship between pulse wave characteristics and body composition characteristics among college-aged vapers and non-vapers. Based off previous investigations [9,10,11,12, 19], we hypothesized that vapers would demonstrate worse body composition and pulse wave characteristics than non-vapers.

2 Methods

2.1 Study Design

This cross-sectional study involved one testing visit at the Human Performance Laboratory. Anthropometrics (i.e., height and weight) and a dual energy x-ray absorptiometry scan (DEXA, Hologic Discovery DXA Bone Densitometry System, Marlborough, MA) were done before the AS measurement. Once completed, subjects were instructed to lie down for five minutes to allow blood pressure to normalize. Measurements were taken on the right side of the body.

2.2 Participants

Seventy-four (19.45 ± 2 years; 164.71 ± 7.32 cm; 60.89 ± 9.25 kg) college-aged females participated in this investigation. Inclusion criteria consisted of students at the University of Tampa between 18 and 35 years old. Exclusion criteria consisted of pregnancy, participating in a current clinical study, any chronic health conditions, and/or any present signs and symptoms of COVID-19. The questionnaire was sent via email to determine vaping status which allowed for classification into the vaper or non-vaper groups. Participants who indicated having vaped within the last 30 days were classified as a vaper. All other participants were classified as non-vapers. A written informed consent was obtained from all the participants prior to the study intervention. This investigation was approved by the University’s Institutional Review Board and is in accordance with the Declaration of Helsinki [21].

2.3 Measurements

2.3.1 Dual Energy X-Ray Absorptiometry Scan

The DEXA scan (Hologic Discovery DXA Bone Densitometry System, Marlborough, MA) uses a low level of radiation (X-Ray) to measure, fat mass (i.e., body fat percentage [BF%]), VF%, BMD. Participants were asked to refrain from food, water, alcohol, and nicotine at least twelve hours prior to the scan. Height was measured to the nearest 0.1 cm with a stadiometer (Detecto 438, Webb City, MO, USA), and body weight was measured to the nearest 0.1 kg on a weight scale (Detecto 438, Webb City, MO, USA). Each participant removed any metallic items on the body prior to the scan and were instructed to lie supine for measurements with their arms by their side and their feet pigeon toed together. BF%, VF% and BMD were split into tertiles and later used for analyses.

2.3.2 Pulse Wave Analysis

After resting for five minutes in a supine position, an automated brachial blood pressure cuff was placed on the right arm using the SphygmoCor XCEL (SphygmoCor XCEL, AtCor Medical, Sydney, Australia). This device provides measurements of pulse wave reflection and pressure waveforms through a validated general transfer function [22]. After measuring BSBP and BDBP, the device deflated and then inflated once more to calculate other variables. These include resting heart rate (RHR), central systolic and diastolic blood pressure (CSBP and CDBP), augmentation pressure (AP), pulse pressure (PP), CMAP, AIx, and AIx 75. Once complete, the BSBP and BDBP obtained were inputted into the system for PWV measurements.

2.3.3 Arterial Stiffness

Carotid-femoral PWV measurements were performed to determine AS using the SphygmoCor XCEL device (SphygmoCor XCEL, AtCor Medical, Sydney, Australia). All measurements were performed on the right side of the body where a cuff was positioned around the patient’s upper thigh to capture femoral pulse waves while a tonometer was placed on the carotid artery to capture carotid pulse waves. Prior to the assessment, distances on the body were measured and inputted into the software to allow for the determination of PWV via the subtraction method. These measurements included the distance from the carotid artery to the top of the sternal notch, the sternal notch to the top of the thigh cuff, and the femoral artery to the top of the thigh cuff. Each participants carotid artery was palpated and marked to ensure the tonometer was placed in the correct position. After these measurements, the tonometer was placed on the carotid artery and PWV was recorded. Measurement of PWV was taken until the quality control check was established to ensure an accurate reading (i.e., less than 10% error). If the quality control was not checked, another measurement was immediately taken.

2.4 Statistical Analysis

Tests for normality and homogeneity of variance were performed using Shapiro–Wilk and Levene’s test for homogeneity of variance, respectively. If a variable violated normality or variance, a Mann–Whitney U or Welch’s t-test was used, respectively. Multiple Bonferroni-corrected independent samples t-tests were conducted to determine potential mean differences between groups for all the variables. Separate two-way, 2 (Group [vaper, non-vaper]) × 3 (Rank [low, moderate, high]) ANOVAs were conducted to determine potential mean differences in pulse wave characteristics (i.e., PWV and PWA [RHR, BSBP, BDBP, CSBP, CDBP, PP, CMAP, AP, AIx, and AIx 75]) among vapers and non-vapers, factored by BF%, VF%, and BMD. All significant interactions were decomposed when necessary and Bonferroni-corrected dependent samples t-tests were used for any main effects. A Greenhouse-Geiser correction was applied when Mauchly’s test of sphericity was not met. Partial eta-squared effect sizes (\({\eta }_{p}^{2}\)) and Hedges g effect sizes were computed for each ANOVA and Bonferroni-corrected dependent samples t-test, respectively. All statistical analyses were performed with Jamovi statistical software V 2.3.15 (Sydney, AU) and all graphs were made with GraphPad Prism V 9.4.1 (Boston, MA).

3 Results

3.1 Demographics

Table 1 includes the demographics of the participants. Out of the participants, 23 were classified as a vaper and 51 as a non-vaper. Overall, none of the variables were significant (p > 0.05), indicating no differences in baseline characteristics between vapers and non-vapers.

Table 1 Demographics among vapers and non-vapers

3.2 Body Fat Percentage

There were no significant (p = 0.078–0.852; \({\eta }_{p}^{2}\) = 0.005–0.073) interactions or main effects for Group (p = 0.179–0.919; \({\eta }_{p}^{2}\) = 0.003–0.027) or Rank (p = 0.078–0.604; \({\eta }_{p}^{2}\) = 0.015–0.056) for BSBP, RHR, CSBP, PP, AP, AIx, AIx 75, or PWV. There were, however, significant interactions for BDBP (p = 0.024; \({\eta }_{p}^{2}\) = 0.105), CDBP (p = 0.041; \({\eta }_{p}^{2}\) = 0.091), and CMAP (p = 0.037; \({\eta }_{p}^{2}\) = 0.093) (Figs. 1a-1c). Follow-up simple main effects of Rank within Group indicated no significant differences (p > 0.05) for BDBP, CDBP, or CMAP. Additionally, follow-up simple main effects of Group within Rank indicated no significant differences (p > 0.05) for BDBP, CDBP, or CMAP.

Fig. 1
figure 1

a-c Displays the mean ± 95% confidence interval (95% CI) for brachial diastolic blood pressure (BDBP; a), central diastolic blood pressure (CDBP; b), and central mean arterial pressure (CMAP; 1c) among vapers and non-vapers stratified by low body fat percentage (LowBF%), moderate body fat percentage (ModerateBF%), and high body fat percentage (HighBF%)

3.3 Visceral Fat Percentage

There were no significant (p = 0.084–0.719; \({\eta }_{p}^{2}\) = 0.010–0.070) interactions or main effects for Group (p = 0.273–0.994; \({\eta }_{p}^{2}\) = 0.007–0.018) or Rank (p = 0.058–0.880; \({\eta }_{p}^{2}\) = 0.051–0.082) for BSBP, CSBP, PP, AP, AIx, AIx 75, or PWV. There were, however, significant interactions for BDBP (p = 0.028; \({\eta }_{p}^{2}\) = 0.101), HR (p = 0.005; \({\eta }_{p}^{2}\) = 0.149), CDBP (p = 0.031; \({\eta }_{p}^{2}\) = 0.098), and CMAP (p = 0.017; \({\eta }_{p}^{2}\) = 0.114) (Fig. 2a–d). Follow-up simple main effects of Rank within Group indicated greater BDBP among vapers classified has HighVF% (77.9 ± 8.9 mmHg) compared to ModerateVF% (66.5 ± 9.3 mmHg) (p = 0.007; g = 1.19). For RHR, it was greater among vapers classified as LowVF% (76.0 ± 7.5 bpm) compared to ModerateVF% (56.6 ± 8.3 bpm) (p = 0.014; g = 2.28). For CDBP, it was greater among vapers classified as HighVF% (78.5 ± 9.0 mmHg) compared to ModerateVF% (67.5 ± 9.4 mmHg) (p = 0.013; g = 1.14). For CMAP, it was greater among vapers classified as HighVF% (93.5 ± 9.4 mmHg) compared to ModerateVF% (81.5 ± 8.9 mmHg) (p = 0.011; g = 1.25). Follow-up simple main effects of Group within Rank indicated greater HR among ModerateVF% for non-vapers (70.2 ± 7.8 bpm) compared to vapers (56.6 ± 8.3 bpm) (p = 0.026; g = 1.64). There were no other significant (p > 0.05) simple main effects.

Fig. 2
figure 2

a–d Displays the mean ± 95% confidence interval (95% CI) for brachial diastolic blood pressure (BDBP; a), heart rate (HR; b), central diastolic blood pressure (CDBP; c), and central mean arterial pressure (CMAP; d) among vapers and non-vapers stratified by low visceral fat percentage (LowVF%), moderate visceral fat percentage (ModerateVF%), and high visceral fat percentage (HighVF%). *denotes p < 0.05

3.4 Bone Mineral Density

There were no significant (p = 0.082–0.983; \({\eta }_{p}^{2}\) = 0.017–0.071) interactions or main effects for Group (p = 0.440–0.922; \({\eta }_{p}^{2}\) = 0.002–0.009) or Rank (p = 0.077–0.895; \({\eta }_{p}^{2}\) = 0.003–0.074) for BSBP, RHR, CSBP, CMAP, AP, AIx, AIx 75, or PWV. There were, however, significant main effects of Rank for BDBP (p = 0.040; \({\eta }_{p}^{2}\) = 0.091), CDBP (p = 0.015; \({\eta }_{p}^{2}\) = 0.117), and PP (p = 0.010; \({\eta }_{p}^{2}\) = 0.129) (Fig. 3a–c). Follow up Bonferroni-corrected dependent samples t-tests collapsed across Group indicated greater BDBP among those classified as LowBMD (75.1 ± 7.2 mmHg) compared to ModerateBMD (71.3 ± 6.6 mmHg) (p = 0.047; g = 0.54). For CDBP, it was greater among those classified as LowBMD (76.4 ± 7.2 mmHg) compared to ModerateBMD (72.0 ± 6.6 mmHg) (p = 0.019; g = 0.63). For PP, it was lower among those classified as LowBMD (31.8 ± 5.9 mmHg) compared to ModerateBMD (35.9 ± 4.8 mmHg) (p = 0.012; g = 0.75).

Fig. 3
figure 3

a-c Displays the mean ± 95% confidence interval (95% CI) for brachial diastolic blood pressure (BDBP; a), central diastolic blood pressure (CDBP; b), and pulse pressure (PP; c) collapsed across Group for low bone mineral density (LowBMD), moderate bone mineral density (ModerateBMD), and high bone mineral density (HighBMD). *denotes p < 0.05

4 Discussion

The main findings of the present investigation indicated greater BDBP, CDBP, and CMAP among vapers classified as HighVF% compared to ModerateVF% and greater RHR among vapers classified as LowVF% compared to ModerateVF%. Between groups, greater RHR was observed among ModerateVF% for non-vapers than vapers. Additionally, BDBP and CDBP were greater among LowBMD compared to ModerateBMD, whereas PP was lower among LowBMD compared to ModerateBMD. There were no differences in vaping status or body composition components for BSBP, CSBP, AP, AIx, AIx 75, or PWV. Collectively, the present findings suggest that VF% and vaping status adversely impacts certain pulse wave characteristics, while BMD does in the absence of vaping status.

Previous investigations have separately examined the relationship between body composition and pulse wave characteristics [13,14,15,16,17,18, 23,24,25,26,27,28,29,30,31,32], as well as vaping status and pulse wave characteristics [6,7,8, 10,11,12, 33, 34]. Thus, to our knowledge, this is the first investigation examining the relationship between vaping status and body composition components and how it may affect pulse wave characteristics among college-aged females. The present findings showed no significant relationships for BF% and pulse wave characteristics among vapers and non-vapers. These findings are partially consistent with previous investigations [35, 36] which have examined the use of vaping and body weight management. Specifically, among adolescents and young adults, a common reason to begin vaping is that it could potentially aid in weight management [35, 36]. For example, females who vaped reported a greater positive expectancy (i.e., 1–7 scale ranging from strongly disagree to strongly agree) of weight control (4.11 ± 1.85 au) relative to males who vaped (3.93 ± 1.68 au) [35]. Contrarily, vaping use was reported to be higher in obese males (12% of the sample) than females (6% of the sample) who were intending to lose weight [36]. Collectively, among young males and females, a common reason for vaping is to control body weight. Thus, it is possible that participants classified as vapers in the current investigation may have been doing so to control body weight [5, 35, 36], possibly leading to the lack of differences for BF%. It is also possible that since there were no statistical differences in BF% between groups (Table 1), it made it difficult to detect differences in pulse wave characteristics among vapers and non-vapers when factored by BF%.

The present findings suggest that VF% had the most impact, whereby greater BDBP, CDBP, and CMAP were observed among vapers classified as HighVF% compared to ModerateVF%. Our findings are partially consistent with previous investigations [37,38,39] examining the relationship between VF and pulse wave characteristics among men and women. For example, among older women (≥ 40 years) there were greater BSBP’s and BDBP’s among those classified with high (123.6 ± 14.3 mmHg and 76.7 ± 8.7 mmHg, respectively) compared to low (118.6 ± 14.4 mmHg and 73.3 ± 9.1 mmHg, respectively) visceral adiposity index [37]. Additionally, among adult females (32.1 ± 15.2 years), there were significant correlations between visceral adiposity index and BSBP (r = 0.823) and BDBP (r = 0.824) [38]. Moreover, after controlling for age and sex, the change in visceral fat area was positively correlated (r = 0.33) with a 10-year follow-up of PP (pre to post measures after 10 years [39]. Thus, in conjunction with previous investigations [37,38,39], our findings indicated that HighVF% leads to increases in pulse wave characteristics (i.e., BDBP, CDBP, and CMAP), however, this relationship was only evident among vapers.

Visceral fat represents the amount of adipose tissue surrounding internal organs, whereby higher amounts have been associated with cardiac and/or metabolic issues [23]. Additionally, higher amounts of body fat (i.e., more VF) and vaping use independently have been shown to raise blood pressure, [9, 24, 28, 34] thus blunting endothelium-dependent vasodilation and nitric oxide release [40]. Therefore, it is possible that in the present investigation, the combination of HighVF% and vaping status led to lower vasodilation, thus increasing BDBP, CDBP, and CMAP. Importantly, this effect was only observed among vapers. Therefore, vaping may lead to additional adverse alterations to the vasculature, such that BDBP, CDBP, and CMAP become elevated. Although BDBP and CDBP were elevated among vapers with HighVF%, we did not observe elevations or other differences in pulse wave characteristics. This may be attributed to differences in peripheral vascular resistance or tone [41, 42], along with the lack of differences between groups for PWV, AIx, and/or PP [43,44,45]. Specifically, BDBP may be more affected by peripheral vascular resistance or tone as it reflects the pressure in the arteries while the heart is at rest. BSBP may be more affected by large artery stiffness and stroke volume as it reflects the pressure in the arteries while the heart is contracting. Thus, the simultaneous differences in both BDBP and CDBP, but lack of differences in BSBP and CSBP may potentially be attributed to greater peripheral vascular resistance, tone, and/or similar PWV, AIx, and PP values among vapers with HighVF%.

For BMD, there were no differences in pulse wave characteristics between vapers and non-vapers. However, there were significant main effects of Rank for BDBP, CDBP, and PP. These findings are partially consistent with previous investigations [46, 47]. For example, among older men and women, there were significant relationships between BMD in the lumbar spine region and BSBP (95% confidence interval [CI] = 0.058–7.752) along with BMD in the femur neck region and BDBP (95% CI = − 0.766 to − 0.016) after adjustments for multiple variables (i.e., age, sex, BMI, etc.) [46]. Additionally, in elderly women, measurements of BMD across a two-year period collapsed into quartiles (i.e., stratified by BSBP) showed a significant relationship between BMD loss and BSBP increases from quartile 1 (BSBP of < 124 mmHg; BMD loss = 2.26 mg/cm2) to quartile 4 (BSBP of ≥ 148 mmHg; BMD loss = 3.79 mg/cm2) [47]. Together, a potential inverse relationship between BSBP/BDBP and BMD may exist, which agrees with the findings of the present investigation. There was, however, no impact of vaping on BMD. Vaping consists of numerous flavoring chemicals, nicotine, and propylene glycol, which systematically may impact highly vascularized tissues such as bone [48]. Although harmful, these effects may not have been detectable due to the current sample (i.e., young, healthy college-aged females) and/or not identifying the amount of flavoring chemicals, nicotine, and propylene glycol.

4.1 Limitations

In the present investigation, we collapsed our sample into different tertiles to examine the relationship between body composition components and pulse wave characteristics. Thus, these tertiles (i.e., low, moderate, and high) made our sample size smaller and may not have been equally split, potentially limiting our generalizations. Also, participants self-reported their vaping status, which limited the causal inference and may introduce recall bias. Specifications for those who vaped, such as amount of nicotine, wattage, and other substances were not reported. Therefore, our findings may not extrapolate to others who vape with varying amounts of nicotine, different wattages, and other aspects regarding vape devices. Additionally, this was an acute investigation and did not allow for an examination of potential chronic impacts of vaping on pulse wave characteristics. Lastly, simultaneous measures of blood pressure and PWV, as well as imaging the diameter of the carotid artery via ultrasound was not performed. As a result, the potential to account for the impact of blood pressure on PWV through biomechanical models such as exponential pressure-diameter (P-D) or Meinders and Hoeks [49] was not possible.

5 Conclusion

Vaping status and BF% did not impact pulse wave characteristics among college-aged females. The lack of differences may be due to similarities in baseline pulse wave characteristics between groups and/or the motivations behind vaping among young adults (i.e., to manage weight control). HighVF% among vapers led to greater BDBP, CDBP, and CMAP relative to vapers with ModerateVF%. Additionally, there was no impact of vaping status and VF% on other pulse wave characteristics, which may be attributed to greater peripheral vascular resistance, tone and/or similar PWV, AIx, and PP values among vapers with HighVF%. BDBP and CDBP were greater among LowBMD compared to ModerateBMD, and PP was lower among LowBMD compared to ModerateBMD. BSBP and BDBP may share an inverse relationship with BMD, however, vaping status did not affect this relationship.

Availability of Data

The data used and/or analyzed during the current study are available from the corresponding author on reasonable request.

Abbreviations

AIx:

Augmentation index

AIx 75:

Augmentation index normalized to 75 beats per minute

AP:

Augmentation pressure

BF%:

Body fat percentage

BMD:

Bone mineral density

BSBP:

Brachial systolic blood pressure

BDBP:

Brachial diastolic blood pressure

bpm:

Beats per minute

CSBP:

Central systolic blood pressure

CDBP:

Central diastolic blood pressure

CMAP:

Central mean arterial pressure

mmHg:

Millimetres of mercury

m/s:

Meters per second

PP:

Pulse pressure

PWV:

Pulse wave velocity

RHR:

Resting heart rate

VF%:

Visceral fat percentage

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Acknowledgements

We would like to thank the participants for volunteering in this investigation.

Funding

The authors declare no authors received funding for this investigation.

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Contributions

Conceptualization, N.T., M.P.M., S.M.L.; methodology, N.T., M.P.M, S.M.L.; formal analysis, S.M.L. G.R.O.; investigation, N.T., M.P.M., S.M.L., S.R., B.K.T.; resources, N.T., M.P.M.; data curation, S.M.L. G.R.O.; writing—original draft preparation, N.T., M.P.M., S.M.L., J.M., S.R., B.K.T.; writing—review and editing, N.T., M.P.M., S.M.L., J.M., S.R., B.K.T., G.R.O.; visualization, N.T., M.P.M., S.M.L.; supervision, N.T., M.P.M.; project administration, N.T., M.P.M., S.M.L. All authors have read and agreed to the published version of the manuscript.

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Correspondence to Sean M. Lubiak.

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Lubiak, S.M., Riddell, S., Thompson, B.K. et al. Examining the Relationship Between Pulse Wave Characteristics and Components of Body Composition Among College Aged Vapers and Non-vapers. Artery Res 31, 4 (2025). https://doiorg.publicaciones.saludcastillayleon.es/10.1007/s44200-025-00075-x

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