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Lin C, Yeh FC, Glynn NW, Gmelin T, Wei YC, Chen YL, Huang CM, Shyu YC, Chen CK. Associations of depression and perceived physical fatigability with white matter integrity in older adults. Psychiatry Res Neuroimaging 2024; 340:111793. [PMID: 38373367 DOI: 10.1016/j.pscychresns.2024.111793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/21/2024]
Abstract
BACKGROUNDS Fatigability is prevalent in older adults. However, it is often associated with depressed mood. We aim to investigate these two psychobehavioral constructs by examining their underpinning of white matter structures in the brain and their associations with different medical conditions. METHODS Twenty-seven older adults with late-life depression (LLD) and 34 cognitively normal controls (CN) underwent multi-shell diffusion MRI. Fatigability was measured with the Pittsburgh Fatigability Scale. We examined white matter integrity by measuring the quantitative anisotropy (QA), a fiber tracking parameter with better accuracy than the traditional imaging technique. RESULTS We found those with LLD had lower QA in the 2nd branch of the left superior longitudinal fasciculus (SLF-II), and those with more physical fatigability had lower QA in more widespread brain regions. In tracts associated with more physical fatigability, the lower QA in left acoustic radiation and left superior thalamic radiation correlated with higher blood glucose (r = - 0.46 and - 0.49). In tracts associated with depression, lower QA in left SLF-II correlated with higher bilirubin level (r = - 0.58). DISCUSSION Depression and fatigability were associated with various white matter integrity changes, which correlated with biochemistry biomarkers all related to inflammation.
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Affiliation(s)
- Chemin Lin
- Department of Psychiatry, Keelung Chang Gung Memorial Hospital, Keelung City, Taiwan; College of Medicine, Chang Gung University, Taoyuan County, Taiwan; Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Keelung, Taiwan
| | - Fang-Cheng Yeh
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Nancy W Glynn
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Theresa Gmelin
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yi-Chia Wei
- College of Medicine, Chang Gung University, Taoyuan County, Taiwan; Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Keelung, Taiwan; Department of Neurology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan; Institute of Neuroscience, National Yang-Ming University, Taipei, Taiwan
| | - Yao-Liang Chen
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chih-Mao Huang
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Yu-Chiau Shyu
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Keelung, Taiwan
| | - Chih-Ken Chen
- Department of Psychiatry, Keelung Chang Gung Memorial Hospital, Keelung City, Taiwan; College of Medicine, Chang Gung University, Taoyuan County, Taiwan; Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Keelung, Taiwan.
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Gay EL, Coen PM, Harrison S, Garcia RE, Qiao YS, Goodpaster BH, Forman DE, Toledo FGS, Distefano G, Kramer PA, Ramos SV, Molina AJA, Nicklas BJ, Cummings SR, Cawthon PM, Hepple RT, Newman AB, Glynn NW. Sex Differences in the Association between Skeletal Muscle Energetics and Perceived Physical Fatigability: The Study of Muscle, Mobility and Aging (SOMMA). MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.25.24307934. [PMID: 38853946 PMCID: PMC11160809 DOI: 10.1101/2024.05.25.24307934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Greater perceived physical fatigability and lower skeletal muscle energetics are predictors of mobility decline. Characterizing associations between muscle energetics and perceived fatigability may provide insight into potential targets to prevent mobility decline. We examined associations of in vivo (maximal ATP production, ATPmax) and ex vivo (maximal carbohydrate supported oxidative phosphorylation [max OXPHOS] and maximal fatty acid supported OXPHOS [max FAO OXPHOS]) measures of mitochondrial energetics with two measures of perceived physical fatigability, Pittsburgh Fatigability Scale (PFS, 0-50, higher=greater) and Rating of Perceived Exertion (RPE Fatigability, 6-20, higher=greater) after a slow treadmill walk. Participants from the Study of Muscle, Mobility and Aging (N=873) were 76.3±5.0 years old, 59.2% women, and 85.3% White. Higher muscle energetics (both in vivo and ex vivo ) were associated with lower perceived physical fatigability, all p<0.03. When stratified by sex, higher ATPmax was associated with lower PFS Physical for men only; higher max OXPHOS and max FAO OXPHOS were associated with lower RPE fatigability for both sexes. Higher skeletal muscle energetics were associated with 40-55% lower odds of being in the most (PFS≥25, RPE Fatigability≥12) vs least (PFS 0-4, RPE Fatigability 6-7) severe fatigability strata, all p<0.03. Being a woman was associated with 2-3 times higher odds of being in the most severe fatigability strata when controlling for ATPmax but not the in vivo measures (p<0.05). Better mitochondrial energetics were linked to lower fatigability and less severe fatigability in older adults. Findings imply that improving skeletal muscle energetics may mitigate perceived physical fatigability and prolong healthy aging.
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Schumacher BT, Kehler DS, Kulminski AM, Qiao Y(S, Andersen SL, Gmelin T, Christensen K, Wojczynski MK, Theou O, Rockwood K, Newman AB, Glynn NW. The association between frailty and perceived physical and mental fatigability: The Long Life Family Study. J Am Geriatr Soc 2024; 72:219-225. [PMID: 37814920 PMCID: PMC10843058 DOI: 10.1111/jgs.18624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/21/2023] [Accepted: 09/11/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Higher levels of frailty, quantified by a frailty index (FI), may be linked to fatigue severity as tasks become more physically and mentally demanding. Fatigue, a component of frailty research, has been ambiguous and inconsistent in its operationalization. Fatigability-the quantification of vulnerability to fatigue in relation to specific intensity and duration of activities-offers a more sensitive and standardized approach, though the association between frailty and fatigability has not been assessed. METHODS Using cross-sectional data from the Long Life Family Study at Visit 2 (2014-2017; N = 2524; mean age ± standard deviation (SD) 71.4 ± 11.2 years; 55% women; 99% White), we examined associations between an 83-item FI after excluding fatigue items (ratio of number of health problems reported (numerator) out of the total assessed (denominator); higher ratio = greater frailty) and perceived physical and mental fatigability using the Pittsburgh Fatigability Scale (PFS) (range 0-50; higher scores = greater fatigability). RESULTS Participants had mean ± standard deviation FI (0.08 ± 0.06; observed range: 0.0-0.43), PFS Physical (13.7 ± 9.6; 39.5% more severe, ≥15), and PFS Mental (7.9 ± 8.9; 22.8% more severe, ≥13). The prevalence of more severe physical and mental fatigability was higher across FI quartiles. In mixed effects models accounting for family structure, a clinically meaningful 3%-higher FI was associated with 1.9 points higher PFS Physical score (95% confidence interval (CI) 1.7-2.1) and 1.7 points higher PFS Mental score (95% CI 1.5-1.9) after adjusting for covariates. CONCLUSIONS Frailty was associated with perceived physical and mental fatigability severity. Understanding this association may support the development of interventions to mitigate the risks associated with greater frailty and perceived fatigability. Including measurements of perceived fatigability, in lieu of fatigue, in frailty indices has the potential to alleviate the inconsistencies and ambiguity surrounding the operationalization of fatigue and provide a more precise and sensitive measurement of frailty.
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Affiliation(s)
| | - Dustin S. Kehler
- School of Physiotherapy, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Alexander M. Kulminski
- Biodemography of Aging Research Unit, Social Science Research Institute, Duke University, Durham, NC, USA
| | - Yujia (Susanna) Qiao
- Department of Epidemiology, School of Public Health, University of Pittsburgh, PA, USA
| | - Stacy L. Andersen
- Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
| | - Theresa Gmelin
- Department of Epidemiology, School of Public Health, University of Pittsburgh, PA, USA
| | - Kaare Christensen
- Danish Aging Research Center, University of Southern Denmark
- Department of Clinical Biochemistry and Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | | | - Olga Theou
- School of Physiotherapy, Dalhousie University, Halifax, Nova Scotia, Canada
- Division of Geriatric Medicine, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Kenneth Rockwood
- Division of Geriatric Medicine, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Anne B. Newman
- Department of Epidemiology, School of Public Health, University of Pittsburgh, PA, USA
| | - Nancy W. Glynn
- Department of Epidemiology, School of Public Health, University of Pittsburgh, PA, USA
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Schumacher BT, Rosano C, Qiao YS, Rosso AL, Cawthon PM, Moored KD, Cummings SR, Kritchevsky SB, Glynn NW. Lower Physical Activity Modifies the Association between Perceived Fatigability and Executive Function but not Memory: The Study of Muscle, Mobility and Aging (SOMMA). MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.11.06.23298173. [PMID: 37986903 PMCID: PMC10659480 DOI: 10.1101/2023.11.06.23298173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
OBJECTIVE Emerging evidence shows that perceived fatigability-the quantification of vulnerability to fatigue in relation to specific intensity and duration of activities-may be associated with cognitive function. We sought to quantify associations with multiple domains of cognitive function and the role of physical activity (PA). METHODS SOMMA participants completed the Pittsburgh Fatigability Scale (PFS) Physical and Mental subscales (each range 0-50; higher scores=greater fatigability) and three cognitive function assessments [Digit Symbol Substitution Test (DSST), executive function; Montreal Cognitive Assessment (MoCA), general function; and California Verbal Learning Test (CVLT), memory]. Linear regression quantified associations cross-sectionally between each PFS subscale and cognitive assessment scores adjusting for covariates. Effect modification by volume and intensity of accelerometer-measured PA was assessed. RESULTS In 873 participants (59.2% women; age 76.3±5.0; 85% White), mean PFS Physical, Mental, and DSST scores were 15.8±8.7, 7.7±7.8, and 55.4±13.7. After adjustments, for each 4-point higher PFS Physical and 3-point higher PFS Mental, participants had nearly one fewer correct DSST items [β coefficient and 95% confidence interval for PFS Physical: -0.69 (-1.09, - 0.29); PFS Mental: -0.64 (-0.97, -0.30)]. Volume and intensity of PA modified the association of PFS Mental and DSST ( P interactions <0.01). All associations were strongest in those with the lowest volume and intensity of PA. PFS was not associated with MoCA or CVLT. DISCUSSION Greater perceived fatigability may be associated with poorer executive function, but not memory. Individuals with greater perceived fatigability, particularly those less active, might benefit from interventions that reduce fatigability and may beneficially influence cognitive function.
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Parma JO, Bacelar MFB, Cabral DAR, Recker RS, Orsholits D, Renaud O, Sander D, Krigolson OE, Miller MW, Cheval B, Boisgontier MP. Relationship between reward-related brain activity and opportunities to sit. Cortex 2023; 167:197-217. [PMID: 37572531 DOI: 10.1016/j.cortex.2023.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 08/14/2023]
Abstract
The present study tested whether energy-minimizing behaviors evoke reward-related brain activity that promotes the repetition of these behaviors via reinforcement learning processes. Fifty-eight healthy young adults in a standing position performed a task where they could earn a reward either by sitting down or squatting while undergoing electroencephalographic (EEG) recording. Reward-prediction errors were quantified as the amplitude of the EEG-derived reward positivity. Results showed that reward positivity was larger on reward versus no reward trials, confirming the validity of our paradigm to measure evoked reward-related brain activity. However, results showed no evidence that sitting (versus standing and squatting) trials led to larger reward positivity. Moreover, we found no evidence suggesting that this effect was moderated by typical physical activity, physical activity on the day of the study, or energy expenditure during the experiment. However, at the behavioral level, results showed that the probability of choosing the stimulus more likely to lead to sitting than standing increased as the number of trials increased. In addition, results revealed that the probability of changing the selected stimulus was higher when the previous trial was a stand trial relative to a sit trial. In sum, neural results showed no evidence supporting the theory that opportunities to minimize energy expenditure are rewarding. However, behavioral findings suggested participants tend to choose the less effortful behavioral alternative and were therefore consistent with the theory of effort minimization (TEMPA).
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Affiliation(s)
| | | | | | | | - Dan Orsholits
- Centre for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, Switzerland; Swiss National Centre of Competence in Research LIVES-Overcoming Vulnerability: Life Course Perspectives, Lausanne and Geneva, Switzerland
| | - Olivier Renaud
- Methodology and Data Analysis, Department of Psychology, University of Geneva, Switzerland
| | - David Sander
- Swiss Center for Affective Sciences, University of Geneva, Switzerland; Laboratory for the Study of Emotion Elicitation and Expression (E3Lab), Department of Psychology, University of Geneva, Switzerland
| | | | - Matthew W Miller
- School of Kinesiology, Auburn University, AL, USA; Center for Neuroscience, Auburn University, USA.
| | - Boris Cheval
- Department of Sport Sciences and Physical Education, Ecole Normale Supérieure Rennes, Bruz, France; Laboratory VIPS2, University of Rennes, Rennes, France.
| | - Matthieu P Boisgontier
- School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Canada; Bruyère Research Institute, Ottawa, Canada.
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Welburn S, Fanning E, Cauley J, Brown P, Strotmeyer E, Boudreau R, Bear T, Moored K, Cawthon P, Stone K, Glynn N. Role of Perceived Physical and Mental Fatigability Severity on Prospective, Recurrent, and Injurious Fall Risk in Older Men. J Gerontol A Biol Sci Med Sci 2023; 78:1669-1676. [PMID: 36801938 PMCID: PMC10460552 DOI: 10.1093/gerona/glad061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 02/21/2023] Open
Abstract
BACKGROUND Falls occur annually in 25% of adults aged ≥65 years. Fall-related injuries are increasing, highlighting the need to identify modifiable risk factors. METHODS Role of fatigability on prospective, recurrent, and injurious fall risk was examined in 1 740 men aged 77-101 years in the Osteoporotic Fractures in Men Study. The 10-item Pittsburgh Fatigability Scale measured perceived physical and mental fatigability (0-50/subscale) at Year 14 (2014-16); established cut-points identified men with more severe perceived physical (≥15, 55.7%), more severe mental (≥13, 23.7%) fatigability, or having both (22.8%). Prospective, recurrent (≥2), and injurious falls were captured by triannual questionnaires ≥1 year after fatigability assessment; risk of any fall was estimated with Poisson generalized estimating equations, and likelihood of recurrent/injurious falls with logistic regression. Models adjusted for age, health conditions, and other confounders. RESULTS Men with more severe physical fatigability had a 20% (p = .03) increased fall risk compared with men with less physical fatigability, with increased odds of recurrent and injurious falls, 37% (p = .04) and 35% (p = .035), respectively. Men with both more severe physical and mental fatigability had a 24% increased risk of a prospective fall (p = .026), and 44% (p = .045) increased odds of recurrent falling compared with men with less severe physical and mental fatigability. Mental fatigability alone was not associated with fall risk. Additional adjustment for previous fall history attenuated associations. CONCLUSIONS More severe fatigability may be an early indicator to identify men at high risk for falls. Our findings warrant replication in women, as they have higher rates of fatigability and prospective falls.
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Affiliation(s)
- Sharon C Welburn
- Department of Kinesiology and Health Sciences, Columbus State University, Columbus, Georgia,USA
| | - Erin E Fanning
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jane A Cauley
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Patrick J Brown
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, and The New York State Psychiatric Institute, New York, New York, USA
| | - Elsa S Strotmeyer
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Robert M Boudreau
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Todd M Bear
- Department of Behavioral and Community Health Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kyle D Moored
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Peggy M Cawthon
- California Pacific Medical Center Research Institute, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, California, USA
| | - Katie L Stone
- California Pacific Medical Center Research Institute, San Francisco, California, USA
| | - Nancy W Glynn
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Qiao Y(S, Moored KD, Boudreau RM, Roe LS, Cawthon PM, Stone KL, Cauley JA, Glynn NW. Changes in Objectively Measured Physical Activity Are Associated With Perceived Physical and Mental Fatigability in Older Men. J Gerontol A Biol Sci Med Sci 2022; 77:2507-2516. [PMID: 35385877 PMCID: PMC9799193 DOI: 10.1093/gerona/glac082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Lower physical activity (PA) is associated with greater perceived fatigability, a person-centered outcome. The association between change in PA and fatigability with advanced age has yet to be established. METHODS Community-dwelling older men (N = 1 113, age = 84.1 ± 3.9 years at Year 14) had free-living PA assessed using SenseWear Armband prospectively at Year 7 (2007-2009) and Year 14 (2014-2016) of Osteoporotic Fractures in Men Study, a longitudinal cohort established in 2000 (baseline). We categorized percent changes in PA into groups (large decline → large increase) for 4 metrics: step count, light intensity PA (LIPA, metabolic equivalents [METs] >1.5 to <3.0), moderate-to-vigorous PA (MVPA, METs ≥ 3.0), and sedentary behavior (SB, METs ≤ 1.5, excluding sleep). Perceived physical and mental fatigability were measured (Year 14) with the Pittsburgh Fatigability Scale (PFS, higher score = greater fatigability; range = 0-50). Associations between each metric of percent changes in PA and fatigability were examined using linear regression, adjusted for demographics, change in health conditions, and Year 7 step count or total PA (METs > 1.5). RESULTS Men declined 2 336 ± 2 546 (34%) steps/d, 24 ± 31 (25%) LIPA min/d, 33 ± 58 (19%) MVPA min/d, and increased 40 ± 107 (6%) SB min/d over 7.2 ± 0.7 years. Compared to large decline (% change less than -50%), those that maintained or increased step count had 3-8 points lower PFS Physical scores; those who maintained or increased LIPA and MVPA had 2-3 and 2-4 points lower PFS Physical scores, respectively (all p ≤ .01). Associations were similar, but smaller, for PFS Mental scores. CONCLUSION Older men who maintained or increased PA had lower fatigability, independent of initial PA. Our findings inform the types and doses of PA that should be targeted to reduce fatigability in older adults.
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Affiliation(s)
- Yujia (Susanna) Qiao
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kyle D Moored
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Robert M Boudreau
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Lauren S Roe
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Peggy M Cawthon
- California Pacific Medical Center, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, California, USA
| | - Katie L Stone
- California Pacific Medical Center, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, California, USA
| | - Jane A Cauley
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Preventive Medicine via Lifestyle Medicine Implementation Practices Should Consider Individuals' Complex Psychosocial Profile. Healthcare (Basel) 2022; 10:healthcare10122560. [PMID: 36554083 PMCID: PMC9777994 DOI: 10.3390/healthcare10122560] [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: 11/08/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Noncommunicable chronic diseases are associated with lifestyle behaviors. Psychological and social factors may influence the adoption of such behaviors. Being mentally and physically energized or fatigued may influence the intention-behavior gap of healthy lifestyle adoption accordingly. We investigated the associations of age, sex, lifestyle behaviors, mood, and mental and physical energy and fatigue at both the trait and state levels. The participants (N = 670) completed questionnaires assessing their sleep, mood, mental and physical state energy and fatigue, physical activity, mental workload, and diet. The ordinary least squares regression models revealed an overlap between the mental state and trait energy levels for males who consume polyphenols, have a high mental workload, and sleep well. Being younger, having a high stress level, bad sleep habits, and being confused and depressed were associated with high mental fatigue. Physical energy and fatigue shared the same commonalities with the previous results, with greater discrepancies observed between the state and trait indicators compared to that between mental energy and fatigue. Diet and stress management seem to be predictors of high physical energy, and females report higher physical fatigue levels. Health care professionals should consider this psychosocial complex profiling in their differential diagnosis and when one is implementing lifestyle behavioral changes to address the facets of preventive medicine, wellness, and health promotion.
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Katz R, Gay EL, Kuipers AL, Lee JH, Honig LS, Christensen K, Feitosa MF, Wojczynski MK, Glynn NW. Association of leukocyte telomere length with perceived physical fatigability. Exp Gerontol 2022; 170:111988. [PMID: 36302456 DOI: 10.1016/j.exger.2022.111988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 09/22/2022] [Accepted: 10/19/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Leukocyte telomere length (LTL) is a potential genomic marker of biological aging, but its relation to fatigability, a prognostic indicator of phenotypic aging (e.g., functional decline) is unknown. We hypothesized shorter LTL would predict greater perceived physical fatigability, but that this association would be attenuated by adjusting for chronological age. METHODS Two generations of participants (N = 1997; 309 probands, 1688 offspring) were from the Long Life Family Study (age = 73.7 ± 10.4, range 60-108, 54.4 % women), a longitudinal cohort study of aging. LTL was assayed at baseline. Perceived physical fatigability was measured 8.0 ± 1.1 years later using the validated, self-administered 10-item Pittsburgh Fatigability Scale (PFS, 0-50, higher scores = greater fatigability). Generalized estimating equations were generated to model the association between LTL and PFS Physical scores. RESULTS Prevalence of greater physical fatigability (PFS scores≥15) was 41.9 %. Using generalized estimating equations, a one kilobase pair shorter LTL was associated with higher PFS Physical scores (β = 1.8, p < .0001), accounting for family structure, and adjusting for field center, follow-up time, sex, and follow-up body mass index, physical activity, and chronic health conditions. When age was included as a covariate, the association was fully attenuated (β = 0.1, p = .78). CONCLUSION LTL may provide an alternative method for estimating an individual's lifetime exposure to chronic stressors, but does not appear to provide additional information not captured by chronological age. Further research is needed to characterize the interaction between age, LTL, and perceived fatigability, and develop a method of identifying individuals at risk for deleterious aging.
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Affiliation(s)
- Rain Katz
- School of Public Health, Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Emma L Gay
- School of Public Health, Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Allison L Kuipers
- School of Public Health, Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Joseph H Lee
- Sergievsky Center, Taub Institute, Department of Epidemiology, Columbia University, New York, NY, USA; Sergievsky Center, Taub Institute, Department of Neurology, Columbia University, New York, NY, USA
| | - Lawrence S Honig
- Sergievsky Center, Taub Institute, Department of Neurology, Columbia University, New York, NY, USA
| | - Kaare Christensen
- Department of Public Health, Unit of Epidemiology, Biostatistics and Biodemography, University of Southern Denmark, Odense, Denmark
| | - Mary F Feitosa
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Mary K Wojczynski
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Nancy W Glynn
- School of Public Health, Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA.
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Qiao Y(S, Harezlak J, Moored KD, Urbanek JK, Boudreau RM, Toto P, Hawkins M, Santanasto AJ, Schrack JA, Simonsick EM, Glynn NW. Development of a Novel Accelerometry-Based Performance Fatigability Measure for Older Adults. Med Sci Sports Exerc 2022; 54:1782-1793. [PMID: 35763596 PMCID: PMC9481701 DOI: 10.1249/mss.0000000000002966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Efforts to study performance fatigability have been limited because of measurement constrains. Accelerometry and advanced statistical methods may enable us to quantify performance fatigability more granularly via objective detection of performance decline. Thus, we developed the Pittsburgh Performance Fatigability Index (PPFI) using triaxial raw accelerations from wrist-worn accelerometer from two in-laboratory 400-m walks. METHODS Sixty-three older adults from our cross-sectional study (mean age, 78 yr; 56% women; 88% White) completed fast-paced ( n = 59) and/or usual-paced 400-m walks ( n = 56) with valid accelerometer data. Participants wore ActiGraph GT3X+ accelerometers (The ActiGraph LLC, Pensacola, FL) on nondominant wrist during the walking task. Triaxial raw accelerations from accelerometers were used to compute PPFI, which quantifies percentage of area under the observed gait cadence-versus-time trajectory during a 400-m walk to a hypothetical area that would be produced if the participant sustained maximal cadence throughout the entire walk. RESULTS Higher PPFI scores (higher score = greater fatigability) correlated with worse physical function, slower chair stands speed and gait speed, worse cardiorespiratory fitness and mobility, and lower leg peak power (| ρ | = 0.36-0.61 from fast-paced and | ρ | = 0.28-0.67 from usual-paced walks, all P < 0.05). PPFI scores from both walks remained associated with chair stands speed, gait speed, fitness, and mobility, after adjustment for sex, age, race, weight, height, and smoking status; PPFI scores from the fast-paced walk were associated with leg peak power. CONCLUSIONS Our findings revealed that the objective PPFI is a sensitive measure of performance fatigability for older adults and can serve as a risk assessment tool or outcome measure in future studies and clinical practice.
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Affiliation(s)
- Yujia (Susanna) Qiao
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, PA
| | - Jaroslaw Harezlak
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN
| | - Kyle D. Moored
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, PA
| | - Jacek K. Urbanek
- Division of Geriatric Medicine, Johns Hopkins School of Medicine, Baltimore, MD
| | - Robert M. Boudreau
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, PA
| | - Pamela Toto
- Department of Occupational Therapy, University of Pittsburgh School of Health and Rehabilitation Sciences, Pittsburgh, PA
| | - Marquis Hawkins
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, PA
| | - Adam J. Santanasto
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, PA
| | - Jennifer A. Schrack
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
- Center on Aging and Health, Johns Hopkins University, Baltimore, MD
| | | | - Nancy W. Glynn
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, PA
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11
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Influence of an Upper Limb Isometric Task in Perceived and Performance Fatigability of Elderly Subjects: A Quasi-Experimental Study. BIOLOGY 2022; 11:biology11081175. [PMID: 36009802 PMCID: PMC9405323 DOI: 10.3390/biology11081175] [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: 07/06/2022] [Revised: 07/26/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022]
Abstract
Isometric activity can be used as a strategy to improve health, fitness, and functional performance in the elderly population, but differences in fatigability may occur. This study aimed to understand fatigability behavior during an upper limb isometric task (ULIT) and the role of health status and physical activity in the fatigability of elderly participants. Thirty-two (32) elderly participants (72.5 ± 5.18 years) were instructed to perform ULIT. The Borg CR10 scale and task failure point (TTF) were used to measure perceived and performance fatigability. Self-reported measures were used to assess the quality of life and physical activity level. A significant relationship between perceived and performance fatigability was found only in the final phase of activity (p < 0.01). Significant correlations were found between perceived fatigability and the social functioning dimension (p < 0.05), and between performance fatigability (TTF) and BMI (p < 0.01), physical functioning (p < 0.01), and role functioning/physical (p < 0.05) dimensions. In conclusion, ULIT produces changes in fatigability of elderly people, which are positively related in the final stage of the activity. Changes in fatigability are negatively related to BMI. It is also negatively related to health, social functioning, physical functioning and role functioning/physical quality of life dimensions.
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12
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Lin C, Glynn NW, Gmelin T, Wei YC, Chen YL, Huang CM, Shyu YC, Chen CK. Validation of the Traditional Chinese Version of the Pittsburgh Fatigability Scale for Older Adults. Clin Gerontol 2022; 45:606-618. [PMID: 33934690 PMCID: PMC10155380 DOI: 10.1080/07317115.2021.1914258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES The Pittsburgh Fatigability Scale (PFS) is a self-administered 10-item tool to measure physical and mental fatigability in older adults. The aim of the current study was to validate the psychometric properties of the traditional Chinese version of PFS (TC-PFS). METHODS We recruited 114 community-dwellingolder adults, where 35 were diagnosed with late-life depression (LLD), 26 with mild cognitive impairment (MCI), and 53 were cognitively normal (CN) from a larger community study of older adults. Statistical analyses were done separately for TC-PFS Physical and Mental subscales. Factor analysis was used for reliability, Cronbach's alpha for internal consistency, Pearson's correlation for construct validity, and group comparison for discriminative validity. RESULTS Factor analysis revealed a two-factor structure for both the TC-PFS Physical and Mental subscales with high reliability (α = 0.89 and 0.89, respectively). Patients with LLD had the highest PFS scores, with 80.0% and 82.9% classified as having greater physical and mental fatigability. For concurrent validity, we found moderate associations with the vitality and physical functioning subscales of the 36-Item Short Form Health Survey. For convergent validity, TC-PFS showed moderate association with emotional-related psychometrics, particularly for the Physical subscale in those with LLD. In contrast, TC-PFS Mental subscale showed correlations with cognitive function, particularly in the MCI group. CONCLUSIONS Our results indicate that the TC-PFS is a valid instrument to measure perceived physical and mental fatigability in older Taiwanese adults.Clinical implications: Perceived fatigability reflects the underlying physical, mental or cognitive function in older adults with or without depression.
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Affiliation(s)
- Chemin Lin
- Department of Psychiatry, Keelung Chang Gung Memorial Hospital, Keelung City, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Nancy W Glynn
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Theresa Gmelin
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yi-Chia Wei
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Taiwan.,Department of Neurology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,Institute of Neuroscience, National Yang-Ming University, Taipei, Taiwan
| | - Yao-Liang Chen
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chih-Mao Huang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
| | - Yu-Chiau Shyu
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chih-Ken Chen
- Department of Psychiatry, Keelung Chang Gung Memorial Hospital, Keelung City, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Taiwan
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13
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He Y, Zhang H, Song M, Wu H, Pi H. Association Between Fatigue and Falls Risk Among the Elderly Aged Over 75 Years in China: The Chain Mediating Role of Falls Efficacy and Lower Limb Function. Front Public Health 2022; 10:850533. [PMID: 35372221 PMCID: PMC8965592 DOI: 10.3389/fpubh.2022.850533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background Although fatigue has been shown to be strongly associated with falls risk, very few studies have focused on its mechanism involved in community-dwelling older subjects. The purpose of this study was to explore the relationship between fatigue and falls risk and its internal mechanism by constructing a chain mediation model. Methods A cross-sectional study design was adopted. A convenience sample of 270 older adults was recruited from July to October 2021 in an urban community, in Beijing, China. The participants completed the 14-item Fatigue Scale (FS-14), Falls Efficacy Scale International (FES-I), the Short Physical Performance Battery (SPPB) and Fall-Risk Self-Assessment Questionnaire (FRQ) to measure fatigue, falls efficacy, lower limb function and falls risk. The theory of unpleasant symptoms was used as a conceptual framework. Structural equation modeling (SEM) was utilized to test the hypothetical model. Results The overall fit of final model was found to be satisfactory: χ2/df = 1.61, CFI = 0.971, TLI = 0.962, RMSEA = 0.049 (95% CI 0.030/0.066) and SRMR = 0.023. Fatigue had a direct effect on falls risk (β = 0.559, S.E. = 0.089, 95% CI 0.380/0.731), and it also had indirect effects on falls risk (β = 0.303, S.E. = 0.072, 95% CI 0.173/0.460) through mediating factors. Falls efficacy and lower limb function were the main mediating variables, and there was a chain mediating effect (β = 0.015, S.E. = 0.010, 95% CI 0.003/0.046). Conclusions Our study suggests that fatigue can influence falls risk among the elderly in China. There are many mediating paths between fatigue and falls risk. These results may help healthcare professionals to better understand the inherent relationship between fatigue and fall risk that may benefit older adults.
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Affiliation(s)
- Yudi He
- Medical School of Chinese PLA, Beijing, China
| | - Huaguo Zhang
- Department of Nursing, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Mi Song
- Medical School of Chinese PLA, Beijing, China
| | - Hongyi Wu
- Department of Nursing, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Hongying Pi
- Medical Service Training Center, Chinese PLA General Hospital, Beijing, China
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14
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Central and Peripheral Fatigue in Physical Exercise Explained: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19073909. [PMID: 35409591 PMCID: PMC8997532 DOI: 10.3390/ijerph19073909] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/16/2022] [Accepted: 03/21/2022] [Indexed: 02/07/2023]
Abstract
The study of the origin and implications of fatigue in exercise has been widely investigated, but not completely understood given the complex multifactorial mechanisms involved. Then, it is essential to understand the fatigue mechanism to help trainers and physicians to prescribe an adequate training load. The present narrative review aims to analyze the multifactorial factors of fatigue in physical exercise. To reach this aim, a consensus and critical review were performed using both primary sources, such as scientific articles, and secondary ones, such as bibliographic indexes, web pages, and databases. The main search engines were PubMed, SciELO, and Google Scholar. Central and peripheral fatigue are two unison constructs part of the Integrative Governor theory, in which both psychological and physiological drives and requirements are underpinned by homeostatic principles. The relative activity of each one is regulated by dynamic negative feedback activity, as the fundamental general operational controller. Fatigue is conditioned by factors such as gender, affecting men and women differently. Sleep deprivation or psychological disturbances caused, for example, by stress, can affect neural activation patterns, realigning them and slowing down simple mental operations in the context of fatigue. Then, fatigue can have different origins not only related with physiological factors. Therefore, all these prisms must be considered for future approaches from sport and clinical perspectives.
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15
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Renner SW, Qiao Y(S, Gmelin T, Santanasto AJ, Boudreau RM, Walston JD, Perls TT, Christensen K, Newman AB, Glynn NW. Association of fatigue, inflammation, and physical activity on gait speed: the Long Life Family Study. Aging Clin Exp Res 2022; 34:367-374. [PMID: 34196949 PMCID: PMC8864668 DOI: 10.1007/s40520-021-01923-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 06/20/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND Fatigue, inflammation, and physical activity (PA) are all independently associated with gait speed, but their directionality is not fully elucidated. AIMS Evaluate the bidirectional associations amongst fatigue, inflammation, and PA on gait speed. METHODS This cross sectional study included probands (n = 1280, aged 49-105) and offspring (n = 2772, aged 24-88) in the Long Life Family Study. We assessed gait speed, fatigue with the question "I could not get going", inflammation using fasting interleukin-6 (IL-6) and high sensitivity C-reactive protein (CRP), and self-reported PA as walking frequency in the past two weeks. The two generations were examined separately using linear mixed modeling. RESULTS Lower fatigue, lower IL-6, and greater PA were all associated with faster gait speed in both generations (all p < 0.05); lower CRP was only associated with faster gait speed in the offspring. PA explained the association of fatigue and gait speed via a 16.1% (95% CI 9.7%, 26.7%) attenuation of the direct associations for the probands and 9.9% (95% CI 6.3%, 18.8%) in the offspring. In addition, IL-6 explained more of the association of fatigue and gait speed than the association between PA and gait speed, via a 14.9% (95% CI 9.2%, 23.4%) attenuation of the direct association in the offspring only. DISCUSSION Results revealed a potential directionality from fatigue to IL-6 to PA that may lead to faster gait speed. Future work should examine these relationships longitudinally to establish temporality and causality. CONCLUSIONS Our findings support a signal that lowering fatigue and inflammation and increasing physical activity may delay functional decline.
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Affiliation(s)
- Sharon W. Renner
- University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania
| | - Yujia (Susanna) Qiao
- University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania
| | - Theresa Gmelin
- University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania
| | - Adam J. Santanasto
- University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania
| | - Robert M. Boudreau
- University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania
| | - Jeremy D. Walston
- Johns Hopkins School of Medicine, Division of Geriatrics and Gerontology, Baltimore, Maryland
| | - Thomas T. Perls
- Boston University School of Medicine, Department of Medicine, Geriatrics Section, Boston, Massachusetts
| | - Kaare Christensen
- University of Southern Denmark, Department of Public Health, Unit of Epidemiology, Biostatistics and Biodemography, Odense, Denmark
| | - Anne B. Newman
- University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania
| | - Nancy W. Glynn
- University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania
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16
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Glynn NW, Gmelin T, Renner SW, QiaoScM YS, Boudreau RM, Feitosa MF, Wojczynski MK, Cosentino S, Andersen SL, Christensen K, Newman AB. Perceived Physical Fatigability Predicts All-Cause Mortality in Older Adults. J Gerontol A Biol Sci Med Sci 2021; 77:837-841. [PMID: 34908118 PMCID: PMC8974332 DOI: 10.1093/gerona/glab374] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Perceived physical fatigability is highly prevalent in older adults and associated with mobility decline and other health consequences. We examined the prognostic value of perceived physical fatigability as an independent predictor of risk of death among older adults. METHODS Participants (N = 2,906), mean age 73.5 [SD, 10.4] years, 54.2% women, 99.7% white enrolled in the Long Life Family Study were assessed at Visit 2 (2014-2017) with 2.7 [SD, 1.0] years follow-up. The Pittsburgh Fatigability Scale (PFS), a 10-item, self-administered validated questionnaire (score range 0-50, higher=greater fatigability) measured perceived physical fatigability at Visit 2. Deaths post-Visit 2 through December 31, 2019 were identified by: family members notifying field centers, reporting during another family member's annual phone follow-up, an obituary, or Civil Registration System (Denmark). We censored all other participants at their last contact. Cox proportional hazard models predicted mortality by fatigability severity, adjusted for family relatedness and other covariates. RESULTS Age-adjusted PFS Physical scores were higher for those who died (19.1 [SE, 0.8]) compared to alive (12.2, [SE, 0.4]) overall, as well as across age strata (P<.001), except for those 60-69 years (P=.79). Participants with the most severe fatigability (PFS Physical scores ≥25) were over twice as likely to die (HR, 2.33 [95% CI, 1.65 to 3.28]) compared to those with less severe fatigability (PFS Physical scores <25) after adjustment. CONCLUSIONS This work underscores the utility of the PFS as a novel patient-reported prognostic indicator of phenotypic aging that captures both overt and underlying disease burden that predicts death.
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Affiliation(s)
- Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Theresa Gmelin
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sharon W Renner
- Department of Kinesiology and Health Sciences, Columbus State University, Columbus, GA, USA
| | - Yujia Susanna QiaoScM
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Robert M Boudreau
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mary F Feitosa
- Department of Genetics, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Mary K Wojczynski
- Department of Genetics, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Stephanie Cosentino
- Department of Neurology, Columbia University Medical Center, New York, NY, USA
| | - Stacy L Andersen
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Kaare Christensen
- Unit of Epidemiology, Biostatistics, and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Anne B Newman
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
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17
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Qiao Y(S, Gmelin T, Renner SW, Boudreau RM, Martin S, Wojczynski MK, Christensen K, Andersen SL, Cosentino S, Santanasto AJ, Glynn NW. Evaluation of the Bidirectional Relations of Perceived Physical Fatigability and Physical Activity on Slower Gait Speed. J Gerontol A Biol Sci Med Sci 2021; 76:e237-e244. [PMID: 33170216 PMCID: PMC8436994 DOI: 10.1093/gerona/glaa281] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Lower physical activity levels and greater fatigability contribute independently to slower gait speed in older adults. To fully understand the bidirectional relations between physical activity and fatigability, and to inform potential intervention strategies, we examined whether physical activity or fatigability explains more of the other factor's association on slower gait speed. METHODS Two generations (probands and offspring) of older adults (N = 2079, mean age 73.0 ± 10.0 years, 54.2% women, 99.7% White) enrolled in the Long Life Family Study were assessed at Visit 2 (2014-2017). Self-reported physical activity was measured with the Framingham Physical Activity Index and perceived physical fatigability using the Pittsburgh Fatigability Scale. Statistical mediation analyses were conducted separately by generation with linear mixed-effect models accounting for family relatedness and adjusted for demographics, health conditions, and field center. RESULTS Greater perceived physical fatigability explained the association of lower physical activity on slower gait speed via a 22.5% attenuation of the direct association (95% confidence interval [CI]: 15.0%-35.2%) for the probands and 39.5% (95% CI: 22.8%-62.6%) for the offspring. Whereas lower physical activity explained the association of greater perceived fatigability on slower gait speed via a 22.5% attenuation of the direct association (95% CI: 13.4%-32.8%) for the probands and 6.7% (95% CI: 3.8%-15.4%) for the offspring. CONCLUSIONS Our findings suggest that the impact of greater perceived physical fatigability on the association between lower physical activity and slower gait speed differs between younger-old and middle-to-oldest-old adults, indicating perceived physical fatigability as a potential mediator in the disablement pathway.
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Affiliation(s)
| | - Theresa Gmelin
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sharon W Renner
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Robert M Boudreau
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sarah Martin
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Mary K Wojczynski
- Department of Genetics, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Kaare Christensen
- Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Stacy L Andersen
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Stephanie Cosentino
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Medical Center, New York, New York
| | - Adam J Santanasto
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Nancy W Glynn
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
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18
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Qiao Y, van Londen GJ, Brufsky JW, Poppenberg JT, Cohen RW, Boudreau RM, Glynn NW. Perceived physical fatigability improves after an exercise intervention among breast cancer survivors: a randomized clinical trial. BREAST CANCER (TOKYO, JAPAN) 2021; 29:30-37. [PMID: 34328623 DOI: 10.1007/s12282-021-01278-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/21/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Among breast cancer populations, exercise interventions resulted in positive but relatively small improvements on fatigue, which may be due to insensitive measures of global fatigue. Perceived fatigability-whole-body tiredness anchored to standardized tasks/activities of a specific intensity and duration-may help to detect effective exercise interventions reducing fatigue in oncology. We examined whether perceived physical fatigability improved after an exercise intervention. METHODS This single center randomized clinical trial of 49 breast cancer survivors was conducted from 2015 to 2017, among which 41 participants (22 = exercise, 19 = control) completed the trial and reported their perceived physical fatigability at the first (Visit 1) and the last visit (Visit 3) over 6-14 weeks. Perceived physical fatigability was measured using the 10-item, self-administered Pittsburgh Fatigability Scale (PFS) scored 0-50. The mean differences of perceived physical fatigability between Visit 3 and Visit 1 were computed and compared by intervention groups using two sample t test. RESULTS Among the 41 women in the study (mean age 54.9 ± 9.8 years; 80% white), sociodemographic, clinical characteristics and baseline fatigue level were similar by intervention groups, except for antiestrogen use. Post-intervention changes (mean ∆ ± SE) of PFS Physical scores were greater in the exercise group (- 4.4 ± 1.4; - 22.5%) than the control group (0.2 ± 1.4; + 1.0%) (p = .022). CONCLUSION The PFS captured a reduction in fatigue after the exercise intervention among breast cancer survivors. These findings aid mounting efforts to reduce fatigue in oncology by introducing a more sensitive instrument to measure perceived physical fatigability to better evaluate patient-reported outcomes in future cancer trials. TRIAL REGISTRATION Clinicaltrials.gov identifier: NCT02770781.
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Affiliation(s)
- Yujia Qiao
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - G J van Londen
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Magee-Womens Research Institute and Foundation, Pittsburgh, PA, USA
| | - Jill W Brufsky
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Magee-Womens Research Institute and Foundation, Pittsburgh, PA, USA
| | | | - Rebecca W Cohen
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Robert M Boudreau
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nancy W Glynn
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA.
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19
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Jang MK, Kim S, Park CG, Collins EG, Quinn LT, Glynn NW, Ferrans CE. Psychometric properties of the Korean version of the Pittsburgh Fatigability Scale in breast cancer survivors. Health Qual Life Outcomes 2021; 19:179. [PMID: 34247645 PMCID: PMC8274048 DOI: 10.1186/s12955-021-01815-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 07/03/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Fatigability has recently emerged in oncology as a concept that anchors patients' perceptions of fatigue to defined activities of specified duration and intensity. This study aimed to examine the psychometric properties of the Korean version of the Pittsburgh Fatigability Scale (K-PFS) for women with breast cancer. METHODS This cross-sectional study involved 196 women with breast cancer recruited from a tertiary hospital in Seoul, Korea. Reliability was evaluated using Cronbach's alpha, and confirmatory factor analysis was conducted to examine the factor structure of the K-PFS. Four goodness-of-fit values were evaluated: (1) the comparative fit index (CFI), (2) the Tucker-Lewis index (TLI), (3) the root mean square error of approximation (RMSEA), and (4) the standardized root mean square residual (SRMR). RESULTS Of the 196 survivors, 71.1% had greater physical fatigability (K-PFS Physical score ≥ 15) and 52.6% had greater mental fatigability (K-PFS Mental score ≥ 13). The Cronbach's alpha coefficient for the total K-PFS scale was 0.926, and the coefficients for the physical and mental fatigability domains were 0.870 and 0.864, respectively. In the confirmatory factor analysis for physical fatigability, the SRMR value (0.076) supported goodness of fit, but other model fit statistics did not (CFI = 0.888, TLI = 0.826, and RMSEA = 0.224). For mental fatigability, although three goodness-of-fit values were acceptable (CFI = 0.948, TLI = 0.919, and SRMR = 0.057), the RMSEA value (0.149) did not indicate good model fit. However, each item coefficient was statistically significant (> 0.5), and the K-PFS was therefore found to be valid from a theoretical perspective. CONCLUSION This study provides meaningful information on the reliability and validity of the K-PFS instrument, which was developed to meet an important need in the context of breast cancer survivors. Additional research should examine its test-retest reliability and construct validity with performance measures.
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Affiliation(s)
- Min Kyeong Jang
- Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
- University of Illinois Cancer Center, Chicago, IL, USA
- College of Nursing, Mo-Im Kim Nursing Research Institute, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Sue Kim
- College of Nursing, Mo-Im Kim Nursing Research Institute, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea.
| | - Chang Gi Park
- Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| | - Eileen G Collins
- Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| | - Lauretta T Quinn
- Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| | - Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Carol Estwing Ferrans
- Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
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20
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Andersen SL, Sweigart B, Glynn NW, Wojczynski MK, Thyagarajan B, Mengel-From J, Thielke S, Perls TT, Libon DJ, Au R, Cosentino S, Sebastiani P. Digital Technology Differentiates Graphomotor and Information Processing Speed Patterns of Behavior. J Alzheimers Dis 2021; 82:17-32. [PMID: 34219735 DOI: 10.3233/jad-201119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Coupling digital technology with traditional neuropsychological test performance allows collection of high-precision metrics that can clarify and/or define underlying constructs related to brain and cognition. OBJECTIVE To identify graphomotor and information processing trajectories using a digitally administered version of the Digit Symbol Substitution Test (DSST). METHODS A subset of Long Life Family Study participants (n = 1,594) completed the DSST. Total time to draw each symbol was divided into 'writing' and non-writing or 'thinking' time. Bayesian clustering grouped participants by change in median time over intervals of eight consecutively drawn symbols across the 90 s test. Clusters were characterized based on sociodemographic characteristics, health and physical function data, APOE genotype, and neuropsychological test scores. RESULTS Clustering revealed four 'thinking' time trajectories, with two clusters showing significant changes within the test. Participants in these clusters obtained lower episodic memory scores but were similar in other health and functional characteristics. Clustering of 'writing' time also revealed four performance trajectories where one cluster of participants showed progressively slower writing time. These participants had weaker grip strength, slower gait speed, and greater perceived physical fatigability, but no differences in cognitive test scores. CONCLUSION Digital data identified previously unrecognized patterns of 'writing' and 'thinking' time that cannot be detected without digital technology. These patterns of performance were differentially associated with measures of cognitive and physical function and may constitute specific neurocognitive biomarkers signaling the presence of subtle to mild dysfunction. Such information could inform the selection and timing of in-depth neuropsychological assessments and help target interventions.
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Affiliation(s)
- Stacy L Andersen
- Geriatrics Section, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Benjamin Sweigart
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mary K Wojczynski
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Bharat Thyagarajan
- Department of Laboratory Medicine and Pathology, University of Minnesota School of Medicine, Minneapolis, MN, USA
| | - Jonas Mengel-From
- Institute of Public Health, Epidemiology, Biostatistics and Biodemography Unit, University of Southern Denmark, Odense, Denmark
| | - Stephen Thielke
- Geriatric Research, Education, and Clinical Center, Puget Sound VA Medical Center, Seattle, WA, USA
| | - Thomas T Perls
- Geriatrics Section, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - David J Libon
- New Jersey Institute for Successful Aging, School of Osteopathic Medicine, Rowan University, Stratford, NJ, USA
| | - Rhoda Au
- Department of Anatomy and Neurobiology and Neurology, Boston University School of Medicine, Boston, MA, USA.,Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Stephanie Cosentino
- Cognitive Neuroscience Division of the Department of Neurology, Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA.,Gertrude H. Sergievsky Center, Columbia University, New York, NY, USA
| | - Paola Sebastiani
- Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA, USA
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21
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Tian Q, Ehrenkranz R, Rosso AL, Glynn NW, Chahine LM, Hengenius J, Zhu X, Rosano C. Mild parkinsonian signs, energy decline, and striatal volume in community-dwelling older adults. J Gerontol A Biol Sci Med Sci 2021; 77:800-806. [PMID: 34049395 DOI: 10.1093/gerona/glab150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Mild Parkinsonian Signs (MPS), highly prevalent in older adults, predict disability. It is unknown whether energy decline, a predictor of mobility disability, is also associated with MPS. We hypothesized that those with MPS had greater decline in self-reported energy levels (SEL) than those without MPS, and that SEL decline and MPS share neural substrates. METHODS Using data from the Health, Aging and Body Composition Study, we analyzed 293 Parkinson's Disease-free participants (83±3 years old, 39% Black, 58% women) with neuroimaging data, MPS evaluation by Unified Parkinson Disease Rating Scale in 2006-2008, and ≥ 3 measures of SEL since 1999-2000. Individual SEL slopes were computed via linear mixed models. Associations of SEL slopes with MPS were tested using logistic regression models. Association of SEL slope with volume of striatum, sensorimotor, and cognitive regions were examined using linear regression models adjusted for normalized total gray matter volume. Models were adjusted for baseline SEL, mobility, demographics, and comorbidities. RESULTS Compared to those without MPS (n=165), those with MPS (n=128) had 37% greater SEL decline in the prior eight years (p=0.001). Greater SEL decline was associated with smaller right striatal volume (adjusted standardized β=0.126, p=0.029). SEL decline was not associated with volumes in other regions. The association of SEL decline with MPS remained similar after adjustment for right striatal volume (adjusted OR=2.03, 95% CI: 1.16 - 3.54). CONCLUSION SEL decline may be faster in those with MPS. Striatal atrophy may be important for declining energy but does not explain the association with MPS.
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Affiliation(s)
- Qu Tian
- Translational Gerontology Branch Longitudinal Studies Section, National Institute on Aging, Baltimore, Maryland
| | - Rebecca Ehrenkranz
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Andrea L Rosso
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Lana M Chahine
- Department of Neurology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - James Hengenius
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Xiaonan Zhu
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Caterina Rosano
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
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22
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Hu Y, Zhang H, Xu W, Zhao M, Liu J, Wu L, Zou L, Zuo J, Liu Y, Fan L, Bair WN, Qiao YS, Glynn NW. Validation of perceived physical fatigability using the simplified-Chinese version of the Pittsburgh Fatigability Scale. BMC Geriatr 2021; 21:336. [PMID: 34039260 PMCID: PMC8157666 DOI: 10.1186/s12877-021-02275-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 05/10/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Pittsburgh Fatigability Scale (PFS) was developed to capture fatigue and demand in a single tool, filling a gap that no validated questionnaire existed to measure perceived fatigability. Since fatigability is a more sensitive measure of a person's susceptibility to fatigue, we validated the simplified-Chinese version of the PFS among Chinese community-dwelling older adults. METHODS This cross-sectional study was conducted in an urban community in Beijing between November 2018 and July 2019. The PFS was translated into simplified-Chinese by the translation, retro-translation method. Internal consistency of the Physical subscale of the PFS was evaluated by Cronbach's alpha. Convergent validity and discriminant validity were evaluated against physical performance measures (i.e., Short Physical Performance Battery & Timed Up and Go Test) and daily living performance (i.e., Barthel Index & Instrumental activity of daily living). RESULTS Our study included 457 participants, including 182 men (39.8%) and 275 women (60.2%). The age range of the included participants was 61-96 years (mean = 84.8 years, SD = 5.8 years). The simplified-Chinese version of PFS Physical scores showed strong internal consistency (Cronbach's alpha = 0.81). Higher PFS Physical scores were associated with worse physical performance, and daily living performance (|correlation coefficient| range: 0.36-0.56, p < .001). Age- and sex-adjusted PFS Physical scores had moderate to good overall discrimination for correctly classifying people by their physical performance and daily living performance (AUCs range 0.70-0.87, p < .001). CONCLUSIONS The PFS simplified-Chinese version is a valid instrument to assess perceived physical fatigability in Chinese-speaking older adults with good convergent validity. Thus, the PFS, with low cost and greater feasibility, is a desired tool to measure fatigability in large population studies.
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Affiliation(s)
- Yixin Hu
- Geriatric Health Care Department of The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.
| | - Hangming Zhang
- Department of Orthopedics, Peking University Shougang Hospital, Beijing, China
| | - Weihao Xu
- Geriatric Health Care Department of The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Ming Zhao
- Outpatient Department, Haidian 37th Ex-Cadre Rest and Recuperation Center, Beijing, People's Republic of China
| | - Juan Liu
- Geriatric Department of Beijing North Hospital of Ordnance Industry, Beijing, China
| | - Linna Wu
- Geriatric Emergency Department of The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Lin Zou
- Geriatric Health Care Department of The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Jing Zuo
- Geriatric Health Care Department of The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Yunxia Liu
- Geriatric Health Care Department of The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Li Fan
- Geriatric Health Care Department of The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Woei-Nan Bair
- Department of Physical Therapy, University of the Sciences in Philadelphia, Philadelphia, PA, USA
| | - Yujia Susanna Qiao
- Department of Epidemiology, Center for Aging and Population Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nancy W Glynn
- Department of Epidemiology, Center for Aging and Population Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
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23
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Renner SW, Bear TM, Brown PJ, Andersen SL, Cosentino S, Gmelin T, Boudreau RM, Cauley JA, Qiao Y(S, Simonsick EM, Glynn NW. Validation of Perceived Mental Fatigability Using the Pittsburgh Fatigability Scale. J Am Geriatr Soc 2021; 69:1343-1348. [PMID: 33469914 PMCID: PMC8127403 DOI: 10.1111/jgs.17017] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/30/2020] [Accepted: 12/13/2020] [Indexed: 01/26/2023]
Abstract
OBJECTIVES Establish reliability, concurrent and convergent validity of the Pittsburgh Fatigability Scale (PFS) Mental subscale. DESIGN Cross-sectional. SETTING Older adults from two University of Pittsburgh registries, Baltimore Longitudinal Study of Aging (BLSA), and Long Life Family Study (LLFS). PARTICIPANTS PFS Mental subscale validation was conducted using three cohorts: (1) Development Sample (N = 664, 59.1% women, age 74.8 ± 6.4 years, PFS Mental scores 10.3 ± 9.1), (2) Validation Sample I-BLSA (N = 430, 51.9% women, age 74.5 ± 8.2 years, PFS Mental scores 9.4 ± 7.9), and (3) Validation Sample II-LLFS (N = 1,917, 54.5% women, age 72.2 ± 9.3 years, PFS Mental scores 7.5 ± 8.2). MEASUREMENTS Development Sample, Validation Sample I-BLSA, and Validation Sample II-LLFS participants self-administered the 10-item Pittsburgh Fatigability Scale. Validation Sample II-LLFS completed cognition measures (Trail Making Tests A and B), depressive symptomatology (Center for Epidemiologic Studies-Depression Scale, CES-D), and global fatigue from two CES-D items. RESULTS In the Development Sample and Validation Sample I-BLSA, confirmatory factor analysis showed all 10 items loaded on two factors: social and physical activities (fit indices: SRMSR = 0.064, RMSEA = 0.095, CFI = 0.91). PFS Mental scores had strong internal consistency (Cronbach's α = 0.85) and good test-retest reliability (ICC = 0.78). Validation Sample II-LLFS PFS Mental scores demonstrated moderate concurrent and construct validity using Pearson (r) or Spearman (ρ) correlations against measures of cognition (Trail Making Tests A (r = 0.14) and B (r = 0.17) time), depressive symptoms (r = 0.31), and global fatigue (ρ = 0.21). Additionally, the PFS Mental subscale had strong convergent validity, discriminating according to established clinical or cognitive testing cut points, with differences in PFS Mental scores ranging from 3.9 to 7.6 points (all P < .001). All analyses were adjusted for family relatedness, field center, age, sex, and education. CONCLUSIONS The validated PFS Mental subscale may be used in clinical and research settings as a sensitive, one-page self-administered tool of perceived mental fatigability in older adults.
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Affiliation(s)
- Sharon W. Renner
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Todd M. Bear
- Department of Behavioral and Community Health Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Patrick J. Brown
- Department of Psychiatry, New York State Psychiatric Institute and Columbia University College Physicians and Surgeons, New York, New York
| | - Stacy L. Andersen
- Geriatrics Section, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Stephanie Cosentino
- Department of Neurology, Columbia University Medical Center, New York, New York
| | - Theresa Gmelin
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Robert M. Boudreau
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jane A. Cauley
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yujia (Susanna) Qiao
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Nancy W. Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
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24
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Davis B, Liu YH, Stampley J, Wood GC, Mitchell DC, Jensen GL, Gao X, Glynn NW, Still CD, Irving BA. The Association between Poor Diet Quality, Physical Fatigability and Physical Function in the Oldest-Old from the Geisinger Rural Aging Study. Geriatrics (Basel) 2021; 6:geriatrics6020041. [PMID: 33920900 PMCID: PMC8167721 DOI: 10.3390/geriatrics6020041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/07/2021] [Accepted: 04/12/2021] [Indexed: 01/09/2023] Open
Abstract
More perceived physical fatigability and poor diet quality are associated with impairments in physical function in older adults. However, the degree to which more perceived fatigability explains the association between poor diet quality and low physical function is unknown. We examined this relationship in 122 (66F, 56M) of the oldest-old participants from the Geisinger Rural Aging Study (GRAS). We used 24-h dietary recalls to assess the Healthy Eating Index (HEI), the Pittsburgh Fatigability Scale (PFS, 0–50) to assess perceived physical fatigability, and the PROMIS Physical Function 20a* to assess physical function. We grouped participants into three age categories: 80–84 (n = 51), 85–89 (n = 51), and 90+ (n = 20) years. Multiple linear regression revealed that a lower HEI was associated with higher PFS Physical score after adjusting for age group, sex, body mass index, and the number of medical conditions (p = 0.001). Several macro- and micro-nutrient intakes were also lower in those reporting more (≥15) compared to less (<15) perceived physical fatigability. Mediation analysis revealed that PFS Physical scores explained ~65% (p = 0.001) of the association between HEI total score and PROMIS19 Physical Function score. Poor diet quality may contribute to more perceived physical fatigability, which could exacerbate impairments in the oldest-old’s physical function.
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Affiliation(s)
- Brett Davis
- Department of Kinesiology, Louisiana State University, Baton Rouge, LA 70803, USA; (B.D.); (J.S.)
| | - Yi-Hsuan Liu
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (Y.-H.L.); (D.C.M.); (X.G.)
| | - James Stampley
- Department of Kinesiology, Louisiana State University, Baton Rouge, LA 70803, USA; (B.D.); (J.S.)
| | - G. Craig Wood
- Geisinger Obesity Institute, Geisinger Health System, Danville, PA 17822, USA; (G.C.W.); (C.D.S.)
| | - Diane C. Mitchell
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (Y.-H.L.); (D.C.M.); (X.G.)
| | - Gordon L. Jensen
- Larner College of Medicine, University of Vermont, Burlington, VT 05401, USA;
| | - Xiang Gao
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (Y.-H.L.); (D.C.M.); (X.G.)
| | - Nancy W. Glynn
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA;
| | - Christopher D. Still
- Geisinger Obesity Institute, Geisinger Health System, Danville, PA 17822, USA; (G.C.W.); (C.D.S.)
| | - Brian A. Irving
- Department of Kinesiology, Louisiana State University, Baton Rouge, LA 70803, USA; (B.D.); (J.S.)
- Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA
- Correspondence: ; Tel.: +1-225-578-7179
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25
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Cohen RW, Meinhardt AJ, Gmelin T, Qiao YS, Moored KD, Katz RD, Renner SW, Glynn NW. Prevalence and severity of perceived mental fatigability in older adults: The Long Life Family Study. J Am Geriatr Soc 2021; 69:1401-1403. [PMID: 33675035 DOI: 10.1111/jgs.17075] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 02/07/2021] [Indexed: 01/12/2023]
Affiliation(s)
- Rebecca W Cohen
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Alexa J Meinhardt
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Theresa Gmelin
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yujia Susanna Qiao
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kyle D Moored
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Ryan D Katz
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sharon W Renner
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Nancy W Glynn
- Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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26
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Graves JL, Qiao Y(S, Moored KD, Boudreau RM, Venditti EM, Krafty RT, Shiroma EJ, Harezlak J, Glynn NW. Profiles of Accelerometry-Derived Physical Activity Are Related to Perceived Physical Fatigability in Older Adults. SENSORS 2021; 21:s21051718. [PMID: 33801352 PMCID: PMC7958607 DOI: 10.3390/s21051718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/16/2022]
Abstract
Physical activity (PA) is associated with greater fatigability in older adults; little is known about magnitude, shape, timing and variability of the entire 24-h rest–activity rhythm (RAR) associated with fatigability. We identified which features of the 24-h RAR pattern were independently and jointly associated with greater perceived physical fatigability (Pittsburgh Fatigability Scale, PFS, 0–50) in older adults (n = 181, 71.3 ± 6.7 years). RARs were characterized using anti-logistic extended cosine models and 4-h intervals of PA means and standard deviations across days. A K-means clustering algorithm approach identified four profiles of RAR features: “Less Active/Robust”, “Earlier Risers”, “More Active/Robust” and “Later RAR”. Quantile regression tested associations of each RAR feature/profile on median PFS adjusted for age, sex, race, body mass index and depression symptomatology. Later rise times (up mesor; β = 1.38, p = 0.01) and timing of midpoint of activity (acrophase; β = 1.29, p = 0.01) were associated with higher PFS scores. Lower PA between 4 a.m. and 8 a.m. was associated with higher PFS scores (β = −4.50, p = 0.03). “Less Active/Robust” (β = 6.14, p = 0.01) and “Later RAR” (β = 3.53, p = 0.01) patterns were associated with higher PFS scores compared to “Earlier Risers”. Greater physical fatigability in older adults was associated with dampened, more variable, and later RARs. This work can guide development of interventions aimed at modifying RARs to reduce fatigability in older adults.
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Affiliation(s)
- Jessica L. Graves
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (J.L.G.); (Y.Q.); (K.D.M.); (R.M.B)
| | - Yujia (Susanna) Qiao
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (J.L.G.); (Y.Q.); (K.D.M.); (R.M.B)
| | - Kyle D. Moored
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (J.L.G.); (Y.Q.); (K.D.M.); (R.M.B)
| | - Robert M. Boudreau
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (J.L.G.); (Y.Q.); (K.D.M.); (R.M.B)
| | | | - Robert T. Krafty
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, GA 30322, USA;
| | - Eric J. Shiroma
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Baltimore, MD 21225, USA;
| | - Jaroslaw Harezlak
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, Bloomington, IN 47405, USA;
| | - Nancy W. Glynn
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (J.L.G.); (Y.Q.); (K.D.M.); (R.M.B)
- Correspondence:
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27
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Schrack JA, Simonsick EM, Glynn NW. Fatigability: A Prognostic Indicator of Phenotypic Aging. J Gerontol A Biol Sci Med Sci 2021; 75:e63-e66. [PMID: 32936913 DOI: 10.1093/gerona/glaa185] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Jennifer A Schrack
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland
| | - Eleanor M Simonsick
- Intramural Research Program, National Institute on Aging, Baltimore, Maryland
| | - Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania
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28
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Renner SW, Cauley JA, Brown PJ, Boudreau RM, Bear TM, Blackwell T, Lane NE, Glynn NW. Higher Fatigue Prospectively Increases the Risk of Falls in Older Men. Innov Aging 2020; 5:igaa061. [PMID: 33442567 PMCID: PMC7788315 DOI: 10.1093/geroni/igaa061] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Indexed: 11/13/2022] Open
Abstract
Background and Objectives Fatigue is a common complaint and shares many risk factors with falls, yet the independent contribution of fatigue on fall risk is unclear. This study’s primary aim was to assess the association between fatigue and prospective fall risk in 5642 men aged 64–100 enrolled in the Osteoporotic Fractures in Men Study (MrOS). The secondary aim was to examine the association between fatigue and recurrent fall risk. Research Design and Methods Fatigue was measured at baseline using the Medical Outcomes Study (short form) single-item question “During the past four weeks, how much of the time did you feel energetic?” Responses were then classified: higher fatigue = “none,” “a little,” or “some” of the time and lower fatigue = “a good bit,” “most,” or “all” of the time. We assessed falls using triannual questionnaires. Fall risk was examined prospectively over 3 years; recurrent falling was defined as at least 2 falls within the first year. Generalized estimating equations and multinomial logistic regression modeled prospective and recurrent fall risk as a function of baseline fatigue status, adjusted for demographics, medications, physical activity, and gait speed. Results Men with higher (26%) versus lower baseline fatigue were older (75.1 ± 6.2 vs 73.2 ± 5.7 years), 24% less active, and had worse physical function (gait speed = 1.09 ± 0.24 vs 1.24 ± 0.21 m/s), all p < .0001. Within 1 year, 25.4% (n = 1409) had fallen at least once, of which 47.4% (n = 668) were recurrent fallers. Men with higher versus lower fatigue had 25% increased fall risk (relative risk = 1.25, 95% CI: 1.14–1.36) over 3 years follow-up, but had 50% increased odds of recurrent falling (odds ratio = 1.50, 95% CI: 1.22–1.85) within the first year. Discussion and Implications Fatigue is an important risk factor of falling independent of established risk factors. Reductions in fatigue (ie, increased energy) may lessen the burden of falls in older men and provide a novel avenue for fall risk intervention.
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Affiliation(s)
- Sharon W Renner
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, US
| | - Jane A Cauley
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, US
| | - Patrick J Brown
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, and The New York State Psychiatric Institute, New York, US
| | - Robert M Boudreau
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, US
| | - Todd M Bear
- Department of Behavioral and Community Health Sciences, University of Pittsburgh, Pennsylvania, US
| | - Terri Blackwell
- California Pacific Medical Center Research Institute, San Francisco, US
| | - Nancy E Lane
- Center for Musculoskeletal Health, Departments of Medicine and Rheumatology, University of California Davis Medical Center, Sacramento, California, US
| | - Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, US
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29
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Feenstra M, Smidt N, van Munster BC, Glynn NW, de Rooij SE. Translation and validation of the Dutch Pittsburgh Fatigability Scale for older adults. BMC Geriatr 2020; 20:234. [PMID: 32641002 PMCID: PMC7346360 DOI: 10.1186/s12877-020-01630-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 06/24/2020] [Indexed: 02/05/2023] Open
Abstract
Background The original Pittsburgh Fatigability Scale (PFS) was developed to assess perceived fatigability in older adults. The objective of this study was to translate the PFS into Dutch and investigate its validity and reliability among hospitalized older adults aged ≥70 years. Methods The PFS was translated into Dutch and pretested for comprehensibility by the Three-Step Test Interview method. The factor structure underlying the final version was evaluated by confirmatory factor analysis (CFA) and exploratory factor analyses (EFA). Internal consistency of the identified subscales was evaluated by Cronbach’s alpha. Construct validity was evaluated by hypothesis testing. Test-retest reliability was evaluated using intraclass correlation coefficients (ICC) and Bland Altman plots. Results The validation sample included 233 patients. CFA of the original factor structure resulted in poor model fit in our Dutch sample. EFA of PFS physical and mental subscales resulted in a two-factor solution underlying the data with good internal consistency of the identified subscales (Cronbach’s alpha: 0.80–0.92). Five out of six hypotheses were confirmed, indicating good construct validity. Retest assessments were performed among 50 patients and showed good reliability for both the physical (ICC: 0.80, 95%CI: 0.68; 0.88) and mental subscale (ICC: 0.81, 95%CI: 0.68; 0.89). Conclusion The Dutch PFS is a valid and reliable instrument to assess fatigability in older hospitalized patients.
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Affiliation(s)
- Marlies Feenstra
- Department of Internal Medicine and Geriatrics, University of Groningen, University Medical Center Groningen, HPC: AA43, PO Box 30001, 9700, RB, Groningen, The Netherlands.
| | - Nynke Smidt
- Department of Internal Medicine and Geriatrics, University of Groningen, University Medical Center Groningen, HPC: AA43, PO Box 30001, 9700, RB, Groningen, The Netherlands.,Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Barbara C van Munster
- Department of Internal Medicine and Geriatrics, University of Groningen, University Medical Center Groningen, HPC: AA43, PO Box 30001, 9700, RB, Groningen, The Netherlands.,Department of Geriatrics, Gelre Hospitals, Apeldoorn, The Netherlands
| | - Nancy W Glynn
- Department of Epidemiology, Graduate School of Public Health, Center for Aging and Population Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sophia E de Rooij
- Department of Internal Medicine and Geriatrics, University of Groningen, University Medical Center Groningen, HPC: AA43, PO Box 30001, 9700, RB, Groningen, The Netherlands.,Medical School Twente, Medical Spectrum Twente, Enschede, The Netherlands
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