1
|
Landers-Ramos RQ, Dondero K, Imery I, Reveille N, Zabriskie HA, Dobrosielski DA. Influence of cardiorespiratory fitness and body composition on resting and post-exercise indices of vascular health in young adults. SPORTS MEDICINE AND HEALTH SCIENCE 2024; 6:54-62. [PMID: 38463670 PMCID: PMC10918352 DOI: 10.1016/j.smhs.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 10/26/2023] [Accepted: 11/13/2023] [Indexed: 03/12/2024] Open
Abstract
Poor cardiorespiratory fitness may mediate vascular impairments at rest and following an acute bout of exercise in young healthy individuals. This study aimed to compare flow mediated dilation (FMD) and vascular augmentation index (AIx75) between young adults with low, moderate, and high levels of cardiorespiratory fitness before and after an acute bout of aerobic exercise. Forty-three participants (22 men; 21 women) between 18 and 29 years of age completed the study. Participants were classified into low, moderate, and high health-related cardiorespiratory fitness groups according to age- and sex-based relative maximal oxygen consumption (V ˙ O2 max) percentile rankings. FMD was performed using Doppler ultrasound and AIx75 was performed using pulse wave analysis at baseline and 60-min after a 30-min bout of treadmill running at 70% V ˙ O2 max. A significant interaction (p = 0.047; ηp2 = 0.142) was observed, with the moderate fitness group exhibiting a higher FMD post-exercise compared with baseline ([6.7% ± 3.1%] vs. [8.5% ± 2.8%], p = 0.028; d = 0.598). We found a significant main effect of group for AIx75 (p = 0.023; ηp2 = 0.168), with the high fitness group exhibiting lower AIx75 compared to low fitness group ([-10% ± 10%] vs. [2% ± 10%], respectively, p = 0.019; g = 1.07). This was eliminated after covarying for body fat percentage (p = 0.489). Our findings suggest that resting FMD and AIx75 responses are not significantly influenced by cardiorespiratory fitness, but FMD recovery responses to exercise may be enhanced in individuals with moderate cardiorespiratory fitness levels.
Collapse
Affiliation(s)
| | - Kathleen Dondero
- Towson University, Department of Kinesiology, Towson, MD, USA
- University of Maryland School of Medicine, Department of Physical Therapy and Rehabilitation Sciences, Baltimore, MD, USA
| | - Ian Imery
- Johns Hopkins University, Department of Cell Biology, Baltimore, MD, USA
- University of Florida, Department of Applied Physiology and Kinesiology, Gainesville, FL, USA
| | | | | | | |
Collapse
|
2
|
Landers-Ramos R, Lawal I, Imery I, Siok D, Addison O, Zabriskie HA, Dondero K, Dobrosielski D. High-intensity functional exercise does not cause persistent elevations in augmentation index in young men and women. Appl Physiol Nutr Metab 2022; 47:963-972. [PMID: 35790116 DOI: 10.1139/apnm-2022-0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Elevations in central augmentation index (AIx) are predictive of cardiovascular disease. Our objective was to examine AIx immediately and 24-hrs following an acute bout of high-intensity functional training (HIFT) in apparently healthy young adults. A second aim compared the exercise induced AIx recovery response between men and women. Thirty-two recreationally active younger adults (n=16 men) were tested. Baseline central hemodynamic measures were assessed, followed by a single bout of bodyweight HIFT. The HIFT included four rounds of burpees, jump squats, split squats, and walking lunges. Assessments were repeated 5-, 10-, 15- and 24-hrs post exercise. AIx was normalized to a heart rate of 75 bpm (AIx75). There was a significant main effect of time on AIx75 across all groups (p<0.001) with AIx75 increasing at all acute timepoints compared with baseline and returning to resting values 24-hrs post-exercise. When examining sex differences after covarying for height and body fat percentage, we found no time*sex interaction (p=0.62), or main effect for sex (p=0.41), but the significant main effect of time remained (p<0.001). The AIx75 response to HIFT follows a similar recovery pattern as previously studied modes of exercise with no residual effects 24 hrs later and no differences between men and women indicating no persistent cardiovascular strain in younger adults participating in this mode of exercise.
Collapse
Affiliation(s)
| | | | - Ian Imery
- Johns Hopkins University, 1466, Baltimore, United States;
| | - Dakota Siok
- Towson University, 1492, Towson, United States;
| | - Odessa Addison
- University of Maryland School of Medicine, 12264, Department of Physical Therapy and Rehabilitation Sciences, Baltimore, United States.,Geriatric Research and Clinical Center, Baltimore, United States;
| | | | - Kathleen Dondero
- Towson University, 1492, Department of Kinesiology, Towson, United States.,University of Maryland School of Medicine, 12264, Department of Physical Therapy and Rehabilitation Sciences, Baltimore, United States;
| | | |
Collapse
|
3
|
Modeling Energy Expenditure Estimation in Occupational Context by Actigraphy: A Multi Regression Mixed-Effects Model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph181910419. [PMID: 34639718 PMCID: PMC8508338 DOI: 10.3390/ijerph181910419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/14/2021] [Accepted: 09/30/2021] [Indexed: 11/17/2022]
Abstract
The accurate prediction of energy requirements for healthy individuals has many useful applications. The occupational perspective has also been proven to be of great utility for improving workers' ergonomics, safety, and health. This work proposes a statistical regression model based on actigraphy and personal characteristics to estimate energy expenditure and cross-validate the results with reference standardized methods. The model was developed by hierarchical mixed-effects regression modeling based on the multitask protocol data. Measurements combined actigraphy, indirect calorimetry, and other personal and lifestyle information from healthy individuals (n = 50) within the age of 29.8 ± 5 years old. Results showed a significant influence of the variables related to movements, heart rate and anthropometric variables of body composition for energy expenditure estimation. Overall, the proposed model showed good agreement with energy expenditure measured by indirect calorimetry and evidenced a better performance than the methods presented in the international guidelines for metabolic rate assessment proving to be a reliable alternative to normative guidelines. Furthermore, a statistically significant relationship was found between daily activity and energy expenditure, which raised the possibility of further studies including other variables, namely those related to the subject's lifestyle.
Collapse
|
4
|
Zhang L, Li T, Chen L, Wu F, Xia W, Huang M, Guo Z, Song L, Yin H, Zhang Y, Yu Y, Cai S, Lu Z, Rong S, Bao W. Association of sleep quality before and after SARS-CoV-2 infection with clinical outcomes in hospitalized patients with COVID-19 in China. EXCLI JOURNAL 2021; 20:894-906. [PMID: 34121976 PMCID: PMC8192881 DOI: 10.17179/excli2021-3451] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/12/2021] [Indexed: 01/08/2023]
Abstract
Sleep is believed to benefit the host defense against pathogens. We aimed to investigate the association of sleep quality with clinical outcomes among hospitalized patients with COVID-19. We conducted a prospective cohort study in 205 adult hospitalized patients with diagnosed moderate COVID-19, with follow-up until hospital discharge or death. Pittsburgh Sleep Quality Index (PSQI) assessed sleep quality before and after infection. The primary outcome was the incidence of severe or critical pneumonia, and the secondary outcomes were duration of hospital stay and laboratory measurements during the follow up. Among the 205 included hospitalized patients, 185 (90.2 %) experienced poorer sleep quality after infection than before according to the PSQI score, and 25 (12.2 %) developed severe or critical pneumonia during follow-up. In Cox regression models, the adjusted hazard ratio of developing severe or critical pneumonia associated with each 1 score increment in the PSQI score before and after infection was 1.23 (95% CI: 1.09, 1.39) and 1.35 (95 % CI: 1.08, 1.67), respectively. Poorer sleep quality was also significantly associated with a prolonged hospital stay and more serious dysregulations in immune system indicated by several laboratory markers. Poorer sleep quality, either in the daily time or after infection with SARS-CoV-2, was associated with worse clinical outcomes. These findings highlight the importance of good sleep in confronting the emerging pandemic of COVID-19.
Collapse
Affiliation(s)
- Li Zhang
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Tingting Li
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Liangkai Chen
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Feng Wu
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Wenguang Xia
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Min Huang
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Zhenli Guo
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Lin Song
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Hongxiang Yin
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Yangpu Zhang
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Yongfei Yu
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan 430015, China
| | - Sijie Cai
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Zijian Lu
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Shuang Rong
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Wei Bao
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
| |
Collapse
|
5
|
Hill LK, Wu JQ, Hinderliter AL, Blumenthal JA, Sherwood A. Actigraphy-Derived Sleep Efficiency Is Associated With Endothelial Function in Men and Women With Untreated Hypertension. Am J Hypertens 2021; 34:207-211. [PMID: 33048161 DOI: 10.1093/ajh/hpaa167] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/21/2020] [Accepted: 10/07/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Poor sleep quality is increasingly recognized as an important and potentially modifiable risk factor for cardiovascular disease (CVD). Impaired endothelial function may be 1 mechanism underlying the association between poor sleep and CVD risk. The present study examined the relationship between objective measures of sleep quality and endothelial function in a sample of untreated hypertensive adults. METHODS Participants were 127 men (N = 74) and women (N = 53), including 55 African Americans and 72 White Americans, aged 40-60 years (mean age, 45.3 ± 8.5 years), with untreated hypertension (systolic blood pressure 130-159 mm Hg and/or diastolic blood pressure 85-99 mm Hg). Noninvasive brachial artery flow-mediated dilation (FMD) was assessed by ultrasound. Sleep parameters, including sleep efficiency (SE), total sleep time (TST), and subjective sleep quality, were assessed over 7 consecutive days by wrist actigraphy. RESULTS Participants averaged 7.76 ± 1 hours in bed, with an average SE of 78 ± 9%, and TST of 6 ± 1 hours. Brachial FMD averaged 3.5 ± 3.1%. In multivariate analyses controlling for sex, race, body mass index, clinic blood pressure, income, smoking, alcohol use, and baseline arterial diameter, SE was positively associated with FMD (β = 0.28, P = 0.012). Subjective sleep quality (β = -0.04, P = 0.63) and TST (β = -0.11, P = 0.25) were unrelated to FMD. CONCLUSIONS Poor sleep as indicated by low SE was associated with impaired FMD. These findings for SE are consistent with previous observations of other measures implicating poor sleep as a CVD risk factor. Interventions that improve sleep may also help lower CVD risk.
Collapse
Affiliation(s)
- LaBarron K Hill
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Jade Q Wu
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Alan L Hinderliter
- Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - James A Blumenthal
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Andrew Sherwood
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
| |
Collapse
|
6
|
Lu L, Wang SB, Rao W, Zhang Q, Ungvari GS, Ng CH, Kou C, Jia FJ, Xiang YT. The Prevalence of Sleep Disturbances and Sleep Quality in Older Chinese Adults: A Comprehensive Meta-Analysis. Behav Sleep Med 2019; 17:683-697. [PMID: 29851516 DOI: 10.1080/15402002.2018.1469492] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objective: This is a meta-analysis of the pooled prevalence of insomnia-specific sleep disturbances (sleep disturbances thereafter) and sleep quality in older Chinese adults. Method: Both English (PubMed, Embase and PsycINFO) and Chinese (Chinese National Knowledge Infrastructure [CNKI], WanFang and SinoMed) databases were systematically searched. Data extraction and quality assessment were independently performed by two investigators. Random-effects model was performed to pool the prevalence of sleep disturbances and sleep quality. Subgroup and meta-regression analyses were performed to explore the source of heterogeneity. Funnel plots, Egger's regression model, and Begg's test were used to assess publication bias. Results: A total of 47 studies were included. The pooled prevalence of sleep disturbances was 35.9% (95% CI: 30.6%-41.2%). Older adults in rural areas had higher prevalence of sleep disturbances than their counterparts in urban areas. Sleep quality was measured by the Pittsburgh Sleep Quality Assessment (PSQI) in all studies with available data. In the 27 studies with available data, the pooled mean PSQI total score was 6.64 (95% CI: 6.14-7.13). There was no significant difference between genders and between rural and urban areas. Compared to men, women had higher mean scores in sleep latency (Q = 23.62, p < 0.001), sleep efficiency (Q = 12.08, p = 0.001), and use of sleep-promoting medications (Q = 4.07, p = 0.044). Conclusion: Sleep disturbances are common in older Chinese adults, particularly in older women.
Collapse
Affiliation(s)
- Li Lu
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau , Macao SAR , China
| | - Shi-Bin Wang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau , Macao SAR , China.,Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences , Guangzhou, China
| | - Wenwang Rao
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau , Macao SAR , China.,Department of Epidemiology and Biostatistics, School of Public Health, Jilin University , Changchun , China
| | - Qinge Zhang
- The National Clinical Research Center for Mental Disorders, China & Center of Depression, Beijing Institute for Brain Disorders & Mood Disorders Center, Beijing Anding Hospital, Capital Medical University , Beijing , China
| | - Gabor S Ungvari
- University Notre Dame Australia, Graylands Hospital , Perth , Australia
| | - Chee H Ng
- Department of Psychiatry, University of Melbourne , Melbourne , Australia
| | - Changgui Kou
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University , Changchun , China
| | - Fu-Jun Jia
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences , Guangzhou, China
| | - Yu-Tao Xiang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau , Macao SAR , China
| |
Collapse
|