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Garcia-Tabar I, Ruiz-Rios M, Martinez-Labari C, Maldonado-Martin S, Murias JM, Gorostiaga EM. Reassembling the Field-based Applicability of the Lactate Threshold for Old Age. Int J Sports Med 2024. [PMID: 38959953 DOI: 10.1055/a-2328-3845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
This study aimed to investigate the applicability of the Lactate Threshold (LT) to predict maximal oxygen uptake (˙VO2max) and demarcate the boundary between the moderate- to heavy-intensity domain (HRm-h) in old age in comparison to the most utilized methods. A cross-sectional validation study was conducted. Participants aged 61 to 77 performed a familiarization procedure, an incremental maximal exercise treadmill test (CPX) for ˙VO2max determination, the Six-minute Walk Test (6MWT), and a discontinuous incremental field test for LT determination. Lower (P<0.01) internal effort was required for LT testing (76±8%HRmax) compared to 6MWT (92±9%HRmax). The application of the 6MWT reference equations overestimated ˙VO2max by 10-23%. LTs better estimated the ˙VO2max (r ≈0.90, SEE: ≈3.0] compared to the 6MWT (r=0.68, SEE=5.5). HRm-h determined by the CPX differed (20%; P=0.001) from that obtained by LT. HRm-h stratification indicated participants fall into the very light to the vigorous intensity domains. LT testing is more submaximal than the 6MWT, and is a valuable tool to estimate the ˙VO2max in older male adults. Implementation of LT testing in physical activity programs might help improving the quality of aerobic exercise training in older men.
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Affiliation(s)
- Ibai Garcia-Tabar
- Department of Physical Education and Sport, Society Sports and Physical Exercise Research Group (GIKAFIT), Department of Physical Education and Sport, Faculty of Education and Sport, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain, Vitoria-Gasteiz, Spain
- Studies, Research and Sports Medicine Centre (CEIMD), Government of Navarre, Pamplona, Spain, Pamplona, Spain
- Physical Activity, Exercise, and Health group, Bioaraba Health Research Institute, Physical Activity, Exercise, and Health group. Vitoria-Gasteiz, Basque Country, Spain, Vitoria-Gasteiz, Spain
| | - Maitane Ruiz-Rios
- Department of Physical Education and Sport, Society Sports and Physical Exercise Research Group (GIKAFIT), Department of Physical Education and Sport, Faculty of Education and Sport, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain, Vitoria-Gasteiz, Spain
- Physical Activity, Exercise, and Health group, Bioaraba Health Research Institute, Physical Activity, Exercise, and Health group. Vitoria-Gasteiz, Basque Country, Spain, Vitoria-Gasteiz, Spain
| | - Cristina Martinez-Labari
- Studies, Research and Sports Medicine Centre (CEIMD), Government of Navarre, Pamplona, Spain, Pamplona, Spain
| | - Sara Maldonado-Martin
- Department of Physical Education and Sport, Society Sports and Physical Exercise Research Group (GIKAFIT), Department of Physical Education and Sport, Faculty of Education and Sport, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain, Vitoria-Gasteiz, Spain
- Physical Activity, Exercise, and Health group, Bioaraba Health Research Institute, Physical Activity, Exercise, and Health group. Vitoria-Gasteiz, Basque Country, Spain, Vitoria-Gasteiz, Spain
| | - Juan Manuel Murias
- College of Health and Life Sciences, Hamad bin Khalifa University, Doha, Qatar
| | - Esteban M Gorostiaga
- Studies, Research and Sports Medicine Centre (CEIMD), Government of Navarre, Pamplona, Spain, Pamplona, Spain
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Fridolfsson J, Arvidsson D, Ekblom-Bak E, Ekblom Ö, Bergström G, Börjesson M. Accelerometer-measured absolute versus relative physical activity intensity: cross-sectional associations with cardiometabolic health in midlife. BMC Public Health 2023; 23:2322. [PMID: 37996871 PMCID: PMC10668340 DOI: 10.1186/s12889-023-17281-4] [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: 10/02/2023] [Accepted: 11/21/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Observational studies investigating the association between accelerometer-measured physical activity and health all use absolute measures of physical activity intensity. However, intervention studies suggest that the physical activity intensity required to improve health is relative to individual fitness. The aim of this study was to investigate the associations between accelerometer-measured absolute and relative physical activity intensity and cardiometabolic health, and what implications these associations may have on the interpretation of health-associated physical activity. METHODS A sample of the cross-sectional Swedish CArdioPulmonary bioImage Study (SCAPIS) consisting of 4,234 men and women aged 55-64 years was studied. Physical activity intensity was measured by accelerometry and expressed as absolute (e.g., metabolic equivalents of task) or relative (percentage of maximal oxygen consumption). Fitness was estimated by the submaximal Ekblom-Bak test. A composite ('metabolic syndrome') score combined measures of waist circumference, systolic blood pressure, high-density lipoprotein, triglycerides, and glycated hemoglobin. Associations of absolute and relative physical activity intensity with the health indicators (i.e., fitness and metabolic syndrome score) were studied by partial least squares regression. Analyses were stratified by fitness level. RESULTS Both absolute and relative physical activity intensity associated with the health indicators. However, the strongest associations for absolute intensity varied depending on fitness levels, whereas the associations for relative intensity were more synchronized across fitness groups. The dose-response relationship between moderate-to-vigorous intensity and the health indicators was stronger for relative than for absolute intensity. The absolute and relative moderate-to-vigorous intensity cut-offs intersected at the 5th fitness percentile, indicating that the absolute intensity cut-off is too low for 95% of individuals in this sample. While 99% of individuals fulfilled the general physical activity recommendations based on absolute intensity measures, only 21% fulfilled the recommendations based on relative intensity measures. In relation to a "sufficient" fitness level, 9% fulfilled the recommendations. CONCLUSIONS Accelerometer-measured relative physical activity intensity represents the intensity related to health benefits regardless of fitness level. Traditional absolute moderate intensity accelerometer cut-offs are too low for most individuals and should be adapted to the fitness level in the sample studied. Absolute and relative physical activity intensity cannot be used interchangeably.
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Affiliation(s)
- Jonatan Fridolfsson
- Center for Health and Performance, Department of Food and Nutrition and Sport Science, Faculty of Education, University of Gothenburg, Box 300, 405 30, Gothenburg, Sweden.
| | - Daniel Arvidsson
- Center for Health and Performance, Department of Food and Nutrition and Sport Science, Faculty of Education, University of Gothenburg, Box 300, 405 30, Gothenburg, Sweden
| | - Elin Ekblom-Bak
- Department of Physical Activity and Health, Swedish School of Sport and Health Sciences, Stockholm, Sweden
| | - Örjan Ekblom
- Department of Physical Activity and Health, Swedish School of Sport and Health Sciences, Stockholm, Sweden
| | - Göran Bergström
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Physiology, Region Västra Götaland, Gothenburg, Sweden
| | - Mats Börjesson
- Center for Lifestyle Intervention, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
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Schützenhöfer M, Birnbaumer P, Hofmann P. Accelerometer-Derived Intensity Thresholds Are Equivalent to Standard Ventilatory Thresholds in Incremental Running Exercise. Sports (Basel) 2023; 11:171. [PMID: 37755848 PMCID: PMC10538147 DOI: 10.3390/sports11090171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/10/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023] Open
Abstract
Accelerometer cut-points are commonly used to prescribe the amount of physical activity, but this approach includes no individual performance measures. As running kinetics change with intensity, acceleration measurements may provide more individual information. Therefore, the aim was to determine two intensity thresholds from accelerometer measures. A total of 33 participants performed a maximal incremental running test with spirometric and acceleration (Axivity AX3) measures at the left and right tibia. Ventilatory equivalents (VE/VO2, VE/VCO2) were used to determine a first and second ventilatory threshold (VT1/VT2). A first and second accelerometer threshold (ACT1/ACT2) were determined within the same regions of interest from vector magnitude (|v| = √(ax2 + ay2 + az2). Accelerometer data from the tibia presented a three-phase increase with increasing speed. Speed at VT1/VT2 (7.82 ± 0.39/10.91 ± 0.87 km/h) was slightly but significantly lower compared to the speed at ACT1/ACT2 from the left (7.71 ± 0.35/10.62 ± 0.72 km/h) and right leg (7.79 ± 0.33/10.74 ± 0.77 km/h). Correlation analysis revealed a strong relationship between speed at thresholds determined from spriometric data or accelerations (r = 0.98; p < 0.001). It is therefore possible to determine accelerometer thresholds from tibia placement during a maximal incremental running test comparable to standard ventilatory thresholds.
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Affiliation(s)
| | | | - Peter Hofmann
- Exercise Physiology, Training and Training Therapy Research Group, Institute of Human Movement Science, Sport and Health, University of Graz, 8010 Graz, Austria; (M.S.); (P.B.)
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Huggins CJ, Clarke R, Abasolo D, Gil-Rey E, Tobias JH, Deere K, Allison SJ. Machine Learning Models for Weight-Bearing Activity Type Recognition Based on Accelerometry in Postmenopausal Women. SENSORS (BASEL, SWITZERLAND) 2022; 22:9176. [PMID: 36501877 PMCID: PMC9740741 DOI: 10.3390/s22239176] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Hip-worn triaxial accelerometers are widely used to assess physical activity in terms of energy expenditure. Methods for classification in terms of different types of activity of relevance to the skeleton in populations at risk of osteoporosis are not currently available. This publication aims to assess the accuracy of four machine learning models on binary (standing and walking) and tertiary (standing, walking, and jogging) classification tasks in postmenopausal women. Eighty women performed a shuttle test on an indoor track, of which thirty performed the same test on an indoor treadmill. The raw accelerometer data were pre-processed, converted into eighteen different features and then combined into nine unique feature sets. The four machine learning models were evaluated using three different validation methods. Using the leave-one-out validation method, the highest average accuracy for the binary classification model, 99.61%, was produced by a k-NN Manhattan classifier using a basic statistical feature set. For the tertiary classification model, the highest average accuracy, 94.04%, was produced by a k-NN Manhattan classifier using a feature set that included all 18 features. The methods and classifiers within this study can be applied to accelerometer data to more accurately characterize weight-bearing activity which are important to skeletal health.
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Affiliation(s)
- Cameron J. Huggins
- Centre for Biomedical Engineering, School of Mechanical Engineering Sciences, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Rebecca Clarke
- Centre for Biomedical Engineering, School of Mechanical Engineering Sciences, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Daniel Abasolo
- Centre for Biomedical Engineering, School of Mechanical Engineering Sciences, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Erreka Gil-Rey
- Faculty of Psychology and Education, University of Deusto, 20012 San Sebastián, Spain
| | - Jonathan H. Tobias
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS10 5NB, UK
- MRC Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol BS8 2BN, UK
| | - Kevin Deere
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS10 5NB, UK
| | - Sarah J. Allison
- School of Health and Life Sciences, Teesside University, Middlesbrough TS1 3BX, UK
- School of Bioscience and Medicine, University of Surrey, Guildford GU2 7XH, UK
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Warner A, Vanicek N, Benson A, Myers T, Abt G. Agreement and relationship between measures of absolute and relative intensity during walking: A systematic review with meta-regression. PLoS One 2022; 17:e0277031. [PMID: 36327341 PMCID: PMC9632890 DOI: 10.1371/journal.pone.0277031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION A metabolic equivalent (MET) is one of the most common methods used to objectively quantify physical activity intensity. Although the MET provides an 'objective' measure, it does not account for inter-individual differences in cardiorespiratory fitness. In contrast, 'relative' measures of physical activity intensity, such as heart rate reserve (HRR), do account for cardiorespiratory fitness. The purpose of this systematic review with meta-regression was to compare measures of absolute and relative physical activity intensity collected during walking. METHODS A systematic search of four databases (SPORTDiscus, Medline, Academic Search Premier and CINAHL) was completed. Keyword searches were: (i) step* OR walk* OR strid* OR "physical activity"; (ii) absolute OR "absolute intensity" OR mets OR metabolic equivalent OR actigraph* OR acceleromet*; (iii) relative OR "relative intensity" OR "heart rate" OR "heart rate reserve" OR "VO2 reserve" OR VO2* OR "VO2 uptake" OR HRmax* OR metmax. Categories (i) to (iii) were combined using 'AND;' with studies related to running excluded. A Bayesian regression was conducted to quantify the relationship between METs and %HRR, with Bayesian logistic regression conducted to examine the classification agreement between methods. A modified Downs and Black scale incorporating 13 questions relative to cross-sectional study design was used to assess quality and risk of bias in all included studies. RESULTS A total of 15 papers were included in the systematic review. A comparison of means between absolute (METs) and relative (%HRR, %HRmax, %VO2R, %VO2max, HRindex) values in 8 studies identified agreement in how intensity was classified (light, moderate or vigorous) in 60% of the trials. We received raw data from three authors, incorporating 3 studies and 290 participants. A Bayesian random intercept logistic regression was conducted to examine the agreement between relative and absolute intensity, showing agreement in 43% of all trials. Two studies had identical relative variables (%HRR) totalling 240 participants included in the Bayesian random intercept regression. The best performing model was a log-log regression, which showed that for every 1% increase in METs, %HRR increased by 1.12% (95% CI: 1.10-1.14). Specifically, the model predicts at the lower bound of absolute moderate intensity (3 METs), %HRR was estimated to be 33% (95%CI: 18-57) and at vigorous intensity (6 METs) %HRR was estimated to be 71% (38-100). CONCLUSION This study highlights the discrepancies between absolute and relative measures of physical activity intensity during walking with large disagreement observed between methods and large variation in %HRR at a given MET. Consequently, health professionals should be aware of this lack of agreement between absolute and relative measures. Moreover, if we are to move towards a more individualised approach to exercise prescription and monitoring as advocated, relative intensity could be more highly prioritised.
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Affiliation(s)
- Ashley Warner
- Department of Sport, Health and Exercise Science, University of Hull, Hull, United Kingdom
| | - Natalie Vanicek
- Department of Sport, Health and Exercise Science, University of Hull, Hull, United Kingdom
| | - Amanda Benson
- School of Health Sciences, Swinburne University of Technology, Melbourne, Australia
| | - Tony Myers
- Department of Sport and Health, Newman University, Birmingham, United Kingdom
| | - Grant Abt
- Department of Sport, Health and Exercise Science, University of Hull, Hull, United Kingdom
- * E-mail:
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Haapala EA, Gao Y, Hartikainen J, Rantalainen T, Finni T. Associations of fitness, motor competence, and adiposity with the indicators of physical activity intensity during different physical activities in children. Sci Rep 2021; 11:12521. [PMID: 34131258 PMCID: PMC8206084 DOI: 10.1038/s41598-021-92040-2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 05/26/2021] [Indexed: 11/13/2022] Open
Abstract
We investigated the associations of peak oxygen uptake (V̇O2peak), ventilatory threshold (VT), muscle strength, motor competence (MC), and adiposity with the indicators of PA intensity during different physical activities used to create absolute PA intensity cut-offs among 35 children 7-11-years-of-age. V̇O2peak was defined as the highest V̇O2 achieved in the maximal cardiopulmonary exercise test (CPET) on a cycle ergometer, self-paced running, or running on a treadmill at 8 km/h. VT was defined from the CPET data. Peak isometric knee extensor and flexor strength was assessed by a dynamometer, MC by the Körperkoordination test für Kinder tests, and body composition by the bioelectrical impedance analysis. PA intensity was assessed using V̇O2 as a % of V̇O2reserve or V̇O2 at VT, mean amplitude deviation (MAD) measured by accelerometry, metabolic equivalent of task (MET), and muscle activity measured by textile electromyography during walking or running on a treadmill at 4, 6, and 8 km/h, playing hopscotch, walking up and down the stairs, self-paced walking, and self-paced running. Children with lower V̇O2peak, V̇O2 at VT, and MC operated at higher intensity level during given physical task than their peers with higher fitness and MC when PA intensity was expressed using relative PA intensity using V̇O2 as a % of V̇O2reserve or V̇O2 at VT (p < 0.05). MAD and METs during different tasks were not able to discriminate PA intensity between children with varying levels of physical fitness or MC. Traditionally used absolute measures of PA intensity based on accelerometry or MET underestimated PA intensity in children with lower V̇O2peak, V̇O2 at VT, and MC.
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Affiliation(s)
- Eero A Haapala
- Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland.
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland.
| | - Ying Gao
- Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland
- Department of Sports Science, College of Education, Zhejiang University, Hangzhou, China
| | - Jani Hartikainen
- Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland
| | - Timo Rantalainen
- Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland
| | - Taija Finni
- Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland
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Arietaleanizbeaskoa MS, Sancho A, Olazabal I, Moreno C, Gil E, Garcia-Alvarez A, Mendizabal N, de la Fuente I, Dominguez S, Pablo S, Grandes G. Effectiveness of physical exercise for people with chronic diseases: the EFIKRONIK study protocol for a hybrid, clinical and implementation randomized trial. BMC FAMILY PRACTICE 2020; 21:227. [PMID: 33158422 PMCID: PMC7648284 DOI: 10.1186/s12875-020-01298-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/25/2020] [Indexed: 12/24/2022]
Abstract
Background Chronic illnesses are the leading cause of morbidity and mortality and threaten the sustainability of healthcare systems worldwide. There is limited evidence in terms of the best modality and intensity of physical activity for improving cardiorespiratory capacity and quality of life in patients with chronic conditions. The objective of the EfiKroniK study is to estimate the common effect of innovative, individualized and supervised physical exercise, on cardiorespiratory functional capacity and quality of life across people with different chronic conditions. Methods/design This is a multicentre clinical trial with a type I hybrid effectiveness-implementation design, including 370 patients each with one of four different chronic illnesses: solid cancer, blood cancer, chronic obstructive pulmonary disease or schizophrenia. Patients will be randomly divided into two parallel groups, stratified by illness type. Patients in both groups will receive a standard healthy life prescription (PVS, from the Spanish “Prescribe Vida Saludable”) and additionally, the EfiKroniK group will be prescribed a physical exercise programme tailored to each patient in terms of intensity in each session. The primary outcome variables will be cardiorespiratory functional capacity and quality of life. The secondary outcome variables will be signs and symptoms, psychological and social factors and specific laboratory parameters. We will also analyse the dose-response effect of the physical exercise programme. Qualitative variables will describe patients’ perception of the utility and suitability of the EfiKroniK programme, as well as their expectations and satisfaction, identifying barriers to and facilitators of the EfiKroniK implementation process through discussion groups. The study will be carried out on an intention-to-treat basis, comparing changes throughout the 1-year follow-up between groups, adjusting for baseline, by performing mixed-effect analysis of covariance. We will estimate the effect of time on repeated measures in each subject and changes in the EfiKroniK and PVS groups over time. Discussion The study will provide the data necessary to allow us to prescribe physical exercise in a similar way to a drug and as a key part of the treatment of chronic illnesses within our healthcare system. Trial registration NCT03810755. Date and version identifier: October 9, 2020. Version2.0.
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Affiliation(s)
- María Soledad Arietaleanizbeaskoa
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain.
| | - Aintzane Sancho
- Medical Oncology Group, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Iñigo Olazabal
- Medical Hematology Group, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Concepcion Moreno
- Medical Mental Health Group, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Erreka Gil
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Arturo Garcia-Alvarez
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Nere Mendizabal
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Ibon de la Fuente
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Silvia Dominguez
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Susana Pablo
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
| | - Gonzalo Grandes
- Primary Care Group on Health, Prevention and Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903, Barakaldo, Bizkaia, Spain
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Haapala EA, Gao Y, Lintu N, Väistö J, Vanhala A, Tompuri T, Lakka TA, Finni T. Associations between cardiorespiratory fitness, motor competence, and adiposity in children. TRANSLATIONAL SPORTS MEDICINE 2020. [DOI: 10.1002/tsm2.198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Eero A. Haapala
- Faculty of Sport and Health Sciences University of Jyväskylä Jyväskylä Finland
- Institute of Biomedicine School of Medicine University of Eastern Finland Kuopio Finland
| | - Ying Gao
- Faculty of Sport and Health Sciences University of Jyväskylä Jyväskylä Finland
- Department of Sports Science College of Education Zhejiang University Hangzhou China
| | - Niina Lintu
- Institute of Biomedicine School of Medicine University of Eastern Finland Kuopio Finland
| | - Juuso Väistö
- Institute of Biomedicine School of Medicine University of Eastern Finland Kuopio Finland
| | - Anssi Vanhala
- Faculty of Sport and Health Sciences University of Jyväskylä Jyväskylä Finland
- Department of Education Faculty of Educational Sciences University of Helsinki Helsinki Finland
| | - Tuomo Tompuri
- Institute of Biomedicine School of Medicine University of Eastern Finland Kuopio Finland
- Department of Clinical Physiology and Nuclear Medicine Kuopio University Hospital Kuopio Finland
| | - Timo A. Lakka
- Institute of Biomedicine School of Medicine University of Eastern Finland Kuopio Finland
- Department of Clinical Physiology and Nuclear Medicine Kuopio University Hospital Kuopio Finland
- Kuopio Research Institute of Exercise Medicine Kuopio Finland
| | - Taija Finni
- Faculty of Sport and Health Sciences University of Jyväskylä Jyväskylä Finland
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Investigation of the Relationship Between Peak Vertical Accelerations and Aerobic Exercise Intensity During Graded Walking and Running in Postmenopausal Women. J Aging Phys Act 2020; 29:71-79. [PMID: 32781434 DOI: 10.1123/japa.2019-0256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 04/26/2020] [Accepted: 05/05/2020] [Indexed: 11/18/2022]
Abstract
How exercise intensity targets, calibrated according to oxygen consumption, relate to vertical impacts during weight-bearing exercise is currently unknown. The authors investigated the relationship between vertical peaks (VPs) and metabolic equivalents (METs) of oxygen consumption in 82 women during walking and running. The magnitude of VPs, measured using a hip-worn triaxial accelerometer, was derived from recommended aerobic exercise intensity targets. VPs were 0.63 ± 0.18g at the lower recommended absolute exercise intensity target (3 METs) but >1.5g at the upper end of moderate-intensity activities (1.90 ± 1.13g at 6 METs). Multilevel linear regression analyses identified speed and type of locomotion as the strongest independent predictors of VPs, explaining 54% and 11% of variance, respectively. The authors conclude that, in contrast to lower intensities, exercising close to or above the 6-MET threshold generates VPs of osteogenic potential, suggesting this could provide simultaneous benefits to decrease all-cause mortality and osteoporosis risk.
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Absolute Accelerometer-Based Intensity Prescription Compared to Physiological Variables in Pregnant and Nonpregnant Women. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17165651. [PMID: 32764431 PMCID: PMC7460197 DOI: 10.3390/ijerph17165651] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 11/24/2022]
Abstract
Estimation of the intensity of physical activity (PA) based on absolute accelerometer cut points (Cp) likely over- or underestimates intensity for a specific individual. The purpose of this study was to investigate the relationship between absolute moderate intensity Cp and the first ventilatory threshold (VT1). A group of 24 pregnant and 15 nonpregnant women who performed a submaximal incremental walking test with measures of ventilatory parameters and accelerations from three different accelerometers on the wrist (ActiGraph wGT3X-BT, GENEActiv, Axivity AX3) and one on the hip (Actigraph wGT3X-BT) were analyzed. Cp were determined corresponding to 3 metabolic equivalents of task (MET), using the conventional MET definition (Cp3.5) (3.5 mL/kg×min) and individual resting metabolic rate (Cpind). The ventilatory equivalent (VE/VO2) was used to determine VT1. Accelerations at VT1 were significantly higher (p < 0.01) compared to Cp3.5 and Cpind in both groups. Cp3.5 and Cpind were significantly different in nonpregnant (p < 0.01) but not in pregnant women. Walking speed at VT1 (5.7 ± 0.5/6.2 ± 0.8 km/h) was significantly lower (p < 0.01) in pregnant compared to nonpregnant women and correspondent to 3.8 ± 0.7/4.9 ± 1.4 conventional METs. Intensity at absolute Cp was lower compared to the intensity at VT1 independent of the device or placement in pregnant and nonpregnant women. Therefore, we recommend individually tailored cut points such as the VT1 to better assess the effect of the intensity of PA.
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Haapala EA, Gao Y, Vanhala A, Rantalainen T, Finni T. Validity of traditional physical activity intensity calibration methods and the feasibility of self-paced walking and running on individualised calibration of physical activity intensity in children. Sci Rep 2020; 10:11031. [PMID: 32620888 PMCID: PMC7335054 DOI: 10.1038/s41598-020-67983-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 06/10/2020] [Indexed: 12/13/2022] Open
Abstract
There are no practical and valid methods for the assessment of individualised physical activity (PA) intensity in observational studies. Therefore, we investigated the validity of commonly used metabolic equivalent of tasks (METs) and pre-determined PA intensity classification methods against individualised PA intensity classification in 35 children 7–11-years-of-age. Then, we studied validity of mean amplitude deviation (MAD) measured by accelerometry during self-paced walking and running in assessment of individualised PA intensity. Individualised moderate PA (MPA) was defined as V̇O2 ≥ 40% of V̇O2reserve and V̇O2 < ventilatory threshold (VT) and vigorous PA (VPA) as V̇O2 ≥ VT. We classified > 3–6 (or alternatively > 4–7) METs as MPA and > 6 (> 7) METs as VPA. Task intensities were classified according to previous calibration studies. MET-categories correctly identified 25.9–83.3% of light PA, 85.9–90.3% of MPA, and 56.7–82.2% of VPA. Task-specific categories correctly classified 53.7% of light PA, 90.6% of MPA, and 57.8% of VPA. MAD during self-paced walking discriminated MVPA from light PA (sensitivity = 67.4, specificity = 88.0) and MAD during self-paced running discriminated VPA from MPA (sensitivity = 78.8, specificity = 79.3). In conclusion, commonly used methods may misclassify PA intensity in children. MAD during self-paced running may provide a novel and practical method for determining individualised VPA intensity in children.
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Affiliation(s)
- Eero A Haapala
- Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland. .,Physiology, Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland.
| | - Ying Gao
- Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland.,Department of Sports Science, College of Education, Zhejiang University, Hangzhou, China
| | - Anssi Vanhala
- Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland.,Department of Education, Faculty of Educational Sciences, University of Helsinki, Helsinki, Finland
| | - Timo Rantalainen
- Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland
| | - Taija Finni
- Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland
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Arigo D, Mogle JA, Brown MM, Roberts SR, Pasko K, Butryn ML, Downs DS. Differences between accelerometer cut point methods among midlife women with cardiovascular risk markers. Menopause 2020; 27:559-567. [PMID: 32049926 PMCID: PMC7903971 DOI: 10.1097/gme.0000000000001498] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Midlife women experience elevated risk for cardiovascular disease and often receive advice to increase physical activity to mitigate this risk. Use of accelerometers to measure ambulatory physical activity requires selection of appropriate thresholds for estimating moderate-to-vigorous physical activity (MVPA), and choice of cut points may lead to meaningfully different conclusions about midlife women's physical activity (PA) engagement. This is particularly important given the recent elimination of 10-minute bout requirements for MVPA. This two-phase study examined differences between four cut point methods among midlife women with cardiovascular disease (CVD) risk. We used findings from Study 1 (exploratory) to generate hypotheses for Study 2 (confirmatory). METHODS Across studies, participants (N = 65) were midlife women with an additional CVD risk factor (eg, hypertension). Participants wore waistband accelerometers for seven days. Daily totals were calculated for minutes in light and MVPA using four common quantification methods (Freedson, Matthews, Swartz, and Troiano). RESULTS Multilevel models showed meaningful differences between methods (P < 0.0001). For total (non-bouted) minutes of MVPA, Freedson and Troiano methods showed that participants barely met MVPA recommendations (30 min per day), whereas Matthews and Swartz methods showed that participants greatly exceeded this goal. As differences between methods were smaller using MVPA bouts of 10 minutes or more (though remained significant), the observed variation was due in part to small bursts of MVPA dispersed throughout the day. CONCLUSIONS Findings demonstrate the need for careful consideration of PA quantification among midlife women with CVD risk, and for further investigation to determine the most appropriate quantification method. : Video Summary:http://links.lww.com/MENO/A545.
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Affiliation(s)
- Danielle Arigo
- Department of Psychology, Rowan University, Glassboro, NJ
| | | | - Megan M. Brown
- Department of Psychology, Rowan University, Glassboro, NJ
| | | | - Kristen Pasko
- Department of Psychology, Rowan University, Glassboro, NJ
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Abt G, Bray J, Myers T, Benson A. Letter to the editor regarding the article "Walking cadence required to elicit criterion moderate-intensity physical activity is moderated by fitness status" by Abt et al. (2019). J Sports Sci 2019; 38:306-307. [PMID: 31783716 DOI: 10.1080/02640414.2019.1697485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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