scholarly journals Cardiovascular Responses Associated with Daily Walking in Subacute Stroke

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Sanjay K. Prajapati ◽  
Avril Mansfield ◽  
William H. Gage ◽  
Dina Brooks ◽  
William E. McIlroy
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Aerobic Exercise ◽  
Cardiovascular Responses ◽  
Heart Rate Reserve ◽  
Heart Rate Monitors ◽  
Bout Duration ◽  
Subacute Stroke ◽  
Independent Ambulation ◽  
Minimum Intensity

Despite the importance of regaining independent ambulation after stroke, the amount of daily walking completed during in-patient rehabilitation is low. The purpose of this study is to determine if (1) walking-related heart rate responses reached the minimum intensity necessary for therapeutic aerobic exercise (40%–60% heart rate reserve) or (2) heart rate responses during bouts of walking revealed excessive workload that may limit walking (>80% heart rate reserve). Eight individuals with subacute stroke attending in-patient rehabilitation were recruited. Participants wore heart rate monitors and accelerometers during a typical rehabilitation day. Walking-related changes in heart rate and walking bout duration were determined. Patients did not meet the minimum cumulative requirements of walking intensity (>40% heart rate reserve) and duration (>10 minutes continuously) necessary for cardiorespiratory benefit. Only one patient exceeded 80% heart rate reserve. The absence of significant increases in heart rate associated with walking reveals that patients chose to walk at speeds well below a level that has meaningful cardiorespiratory health benefits. Additionally, cardiorespiratory workload is unlikely to limit participation in walking. Measurement of heart rate and walking during in-patient rehabilitation may be a useful approach to encourage patients to increase the overall physical activity and to help facilitate recovery.

Physical Activity in the Workplace: Does Just Working Meet Activity Recommendations?

2021 ◽  
pp. 216507992110551
Author(s):  
Tyler D. Quinn ◽  
Christopher E. Kline ◽  
Elizabeth F. Nagle ◽  
Lewis J. Radonovich ◽  
Bethany Barone Gibbs
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Cardiovascular Health ◽  
Food Service ◽  
Heart Rate Reserve ◽  
Heart Rate Monitors ◽  
Control And Prevention ◽  
Work Hour ◽  
Male Workers

Background: The physical activity (PA) health paradox hypothesizes that occupational physical activity (OPA) and leisure time PA have differential cardiovascular health effects due to increased cardiovascular load without adequate recovery; however, research describing worker PA lacks high-quality objective OPA measurement. This study aimed to objectively describe PA profiles of men reporting high OPA and make comparisons to aerobic PA and OPA recommendations. Methods: Male food service, material moving, health care, or maintenance workers wore activity (ActiGraph® and activPAL®) and heart rate monitors for 7 days. Participants recorded work, non-work, and sleep times in a diary. PA was operationalized as time spent in sedentary behavior, upright time, light, moderate, vigorous, and moderate-to-vigorous PA during work and non-work hours. PA profiles were described and compared with Centers for Disease Control and Prevention aerobic PA guidelines (≥21.4 minute/day) and OPA recommendations (<30 minute/hour upright and intensity of <30% heart rate reserve). Findings: Nineteen male workers (68% White, age = 46.6±7.9 years) were more active on workdays than non-workdays (sedentary: 492.3 vs. 629.7 minute/day; upright: 462.4 vs. 325.2 minute/day; moderate-to-vigorous PA: 72.4 vs. 41.5 minute/day, respectively; all p < .05). Most participants (17/19) achieved aerobic PA guidelines across all days with more achieving on workdays (19/19) than non-workdays (13/19). OPA often exceeded recommended limits with participants accumulating 39.6±12.2 minutes/work hour upright and 30.3±25.9% of working time >30% heart rate reserve. Conclusions/Application to Practice: Male workers reporting high OPA typically met aerobic PA guidelines but exceeded recommended OPA limits. The long-term health implications of such activity profiles should be investigated.

Energy Expenditure in Playground Games in Primary School Children Measured by Accelerometer and Heart Rate Monitors

2017 ◽  
Vol 27 (5) ◽  
pp. 467-474 ◽  
Author(s):  
Jorge Cañete García-Prieto ◽  
Vicente Martinez-Vizcaino ◽  
Antonio García-Hermoso ◽  
Mairena Sánchez-López ◽  
Natalia Arias-Palencia ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Energy Expenditure ◽  
Primary School ◽  
Correlation Coefficient ◽  
School Children ◽  
Indirect Calorimetry ◽  
Coefficient Of Variation ◽  
Primary School Children ◽  
Heart Rate Monitors

The aim of this study was to examine the energy expenditure (EE) measured using indirect calorimetry (IC) during playground games and to assess the validity of heart rate (HR) and accelerometry counts as indirect indicators of EE in children´s physical activity games. 32 primary school children (9.9 ± 0.6 years old, 19.8 ± 4.9 kg · m-2 BMI and 37.6 ± 7.2 ml · kg-1 · min-1 VO2max). Indirect calorimetry (IC), accelerometry and HR data were simultaneously collected for each child during a 90 min session of 30 playground games. Thirty-eight sessions were recorded in 32 different children. Each game was recorded at least in three occasions in other three children. The intersubject coefficient of variation within a game was 27% for IC, 37% for accelerometry and 13% for HR. The overall mean EE in the games was 4.2 ± 1.4 kcals · min-1 per game, totaling to 375 ± 122 kcals/per 90 min/session. The correlation coefficient between indirect calorimetry and accelerometer counts was 0.48 (p = .026) for endurance games and 0.21 (p = .574) for strength games. The correlation coefficient between indirect calorimetry and HR was 0.71 (p = .032) for endurance games and 0.48 (p = .026) for strength games. Our data indicate that both accelerometer and HR monitors are useful devices for estimating EE during endurance games, but only HR monitors estimates are accurate for endurance games.

Effets du statut socioéconomique sur l'activité physique d'enfants prépubères

2003 ◽  
Vol 28 (2) ◽  
pp. 190-203 ◽  
Author(s):  
Alexandre Melin ◽  
Philippe Obert ◽  
Pierre Bonnet ◽  
Daniel Courteix
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Socioeconomic Status ◽  
Normal Subjects ◽  
Habitual Physical Activity ◽  
Heart Rate Reserve ◽  
Statut Socioéconomique ◽  
The Mean ◽  
And Gender ◽  
Daily Time

In order to assess possible influences of socioeconomic status and gender on habitual physical activity (HPA) of prepubertal French children, daily heart rate was 24-hr-monitored in 65 normal subjects for 2 days in the same school week. HPA was evaluated as the mean daily time spent at heart rates greater than 140 bpm (tFC > 140), 160 bpm (tFC > 160), 50% (tFC > 50%), and 70% (tFC > 70%) of the heart rate reserve. An effect of socioeconomic status (determined by questionnaire) was found in boys, with HPA being greater in the underprivileged ones (tFC > 140: 51.8 ± 30.1 vs 33.0 ± 14.1 min, p < .05; tFC > 160: 22.7 ± 16.6 vs 11.1 ± 7.4 min, p < .05; tFC > 50%: 61.4 ± 33.5 vs 46.5 ± 17.1 min, p < .06; tFC > 70%: 20.1 ± 15.2 vs 10.6 ± 7.1, p < .05). Boys were more active than girls, but only in the underprivileged group (tFC > 140: 51.8 ± 30.1 vs 32.8 ± 26.0 min, tFC > 160: 22.7 ± 16.6 vs 9.9 ± 8.2 min, p < .05; tFC > 50%: 61.4 ± 33.5 vs 37.4 ± 23.8 min, p < .05; tFC > 70%: 20.1 ± 15.2 vs 8.1 ± 6.3, p < .05). Cultural factors could be involved in these results. Key words: habitual physical activity, heart rate, heart rate meter, gender, energy expenditure

scholarly journals Aerobic exercise capacity is maintained over a 5-year period in mild-to-moderate chronic kidney disease: a longitudinal study

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Helena Wallin ◽  
Eva Jansson ◽  
Carin Wallquist ◽  
Britta Hylander Rössner ◽  
Stefan H. Jacobson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Chronic Kidney Disease ◽  
Heart Rate ◽  
Renal Function ◽  
Aerobic Exercise ◽  
Exercise Capacity ◽  
Activity Level ◽  
Peak Heart Rate ◽  
Aerobic Exercise Capacity ◽  
Over Time

Abstract Background Aerobic exercise capacity is reduced in non-dialysis chronic kidney disease (CKD), but the magnitude of changes in exercise capacity over time is less known. Our main hypothesis was that aerobic ExCap would decline over 5 years in individuals with mild-to-moderate CKD along with a decline in renal function. A secondary hypothesis was that such a decline in ExCap would be associated with a decline in muscle strength, cardiovascular function and physical activity. Methods We performed a 5-year-prospective study on individuals with mild-to-moderate CKD, who were closely monitored at a nephrology clinic. Fiftytwo individuals with CKD stage 2–3 and 54 age- and sex-matched healthy controls were included. Peak workload was assessed through a maximal cycle exercise test. Muscle strength and lean body mass, cardiac function, vascular stiffness, self-reported physical activity level, renal function and haemoglobin level were evaluated. Tests were repeated after 5 years. Statistical analysis of longitudinal data was performed using linear mixed models. Results Exercise capacity did not change significantly over time in either the CKD group or controls, although the absolute workloads were significantly lower in the CKD group. Only in a CKD subgroup reporting low physical activity at baseline, exercise capacity declined. Renal function decreased in both groups, with a larger decline in CKD (p = 0.05 between groups). Peak heart rate, haemoglobin level, handgrip strength, lean body mass and cardiovascular function did not decrease significantly over time in CKD individuals. Conclusions On a group level, aerobic exercise capacity and peak heart rate were maintained over 5 years in patients with well-controlled mild-to-moderate CKD, despite a slight reduction in glomerular filtration rate. In line with the maintained exercise capacity, cardiovascular and muscular function were also preserved. In individuals with mild-to-moderate CKD, physical activity level at baseline seems to have a predictive value for exercise capacity at follow-up.

Variable Accuracy of Wearable Heart Rate Monitors during Aerobic Exercise

2017 ◽  
Vol 49 (8) ◽  
pp. 1697-1703 ◽  
Author(s):  
STEPHEN GILLINOV ◽  
MUHAMMAD ETIWY ◽  
ROBERT WANG ◽  
GORDON BLACKBURN ◽  
DERMOT PHELAN ◽  
...  
Keyword(s):  
Heart Rate ◽  
Aerobic Exercise ◽  
Heart Rate Monitors

scholarly journals Aerobic exercise capacity is maintained over a 5-year period in mild-to-moderate chronic kidney disease: A longitudinal study

2020 ◽  
Author(s):  
Helena Wallin ◽  
Eva Jansson ◽  
Carin Wallquist ◽  
Britta Hylander Rössner ◽  
Stefan H Jacobson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Chronic Kidney Disease ◽  
Heart Rate ◽  
Renal Function ◽  
Aerobic Exercise ◽  
Exercise Capacity ◽  
Activity Level ◽  
Peak Heart Rate ◽  
Aerobic Exercise Capacity ◽  
Over Time

Abstract Background: Aerobic exercise capacity is reduced in non-dialysis chronic kidney disease (CKD), but little is known about the magnitude of changes in exercise capacity over time. Our main hypothesis was that aerobic ExCap would decline over 5 years in individuals with mild-to-moderate CKD along with a decline in renal function. A secondary hypothesis was that such a decline in ExCap would be associated with a decline in muscle strength, cardiovascular function and physical activity. Methods: We performed a 5-year-prospective study on individuals with mild-to-moderate CKD, who were closely monitored at a nephrology clinic. Fiftytwo individuals with CKD stage 2–3 and 54 age- and sex-matched healthy controls were included. Peak workload was assessed through a maximal cycle exercise test. Muscle strength and lean body mass, cardiac function, vascular stiffness, self-reported physical activity level, renal function and haemoglobin level were evaluated. Tests were repeated after 5 years. Statistical analysis of longitudinal data was performed using linear mixed models.Results: Exercise capacity did not change significantly over time in either the CKD group or controls, although the absolute workloads were significantly lower in the CKD group. Only in a CKD subgroup reporting low physical activity at baseline, exercise capacity declined. Renal function decreased in both groups, with a faster decline in CKD (p = 0.05 between groups). Peak heart rate, haemoglobin level, handgrip strength, lean body mass and cardiovascular function did not decrease significantly over time in CKD individuals. Conclusions: On a group level, aerobic exercise capacity and peak heart rate were maintained over 5 years in patients with well-controlled mild-to-moderate CKD, despite a slight reduction in glomerular filtration rate, mirroring the lack of progression of cardiovascular and muscular dysfunction in this group. In patients with mild-to-moderate CKD, physical activity level at baseline seems to have a predictive value for exercise capacity at follow-up.

The assessment of physical activity

2017 ◽  
Author(s):  
Maria Hildebrand ◽  
Ulf Ekelund
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Energy Expenditure ◽  
Cost Effective ◽  
Human Behaviour ◽  
Heart Rate Monitors ◽  
Type Mode ◽  
Accurate Quantification

Physical activity (PA) is a complex human behaviour that comprises several dimensions, including intensity, frequency, duration, type/mode, and domain. PA outcomes can be divided into two main categories: the estimation of energy expenditure, and other quantifying metrics of PA. Subjective methods, including questionnaires and diaries, are often easy to use, cost-effective and are able to assess type of PA and to rank PA levels. However, they are prone to several limitations and are not able to provide accurate estimates of PA, energy expenditure, or intensity. Objective methods, including accelerometers and heart rate monitors, provide a reasonably accurate quantification of intensity, frequency, duration, and PA energy expenditure. When choosing a method for assessing PA several factors need to be considered, including validity, reliability, accuracy, and responsiveness, as well as the purpose of the study, the population being studied, and the outcome of interest.

scholarly journals Background and Intensity of the GALM Physical Activity Program

2005 ◽  
Vol 2 (1) ◽  
pp. 51-62 ◽  
Author(s):  
Johan de Jong ◽  
Martin Stevens ◽  
Koen A.P.M. Lemmink ◽  
Mathieu H.G. de Greef ◽  
Piet Rispens ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Heart Rate ◽  
Social Cognitive ◽  
Cognitive Theory ◽  
Physical Activity Program ◽  
Heart Rate Monitors ◽  
Activity Program ◽  
Rate Maximum ◽  
Interesting Alternative

Background:The Groningen Active Living Model (GALM) was developed to stimulate physical activity in sedentary and underactive older adults. The GALM physical activity program was primarily based on an evolutionary–biological play theory and insights from social cognitive theory. The purpose of this study was to assess the intensity of the GALM program.Methods:Data from 15 GALM sessions were obtained by means of heart rate monitors.Results:Data of 97 program participants (mean age: 60.1 y) were analyzed. The overall mean intensity for the GALM program was 73.7% of the predicted heart rate maximum and 6% of the monitored heart rate time could be classified as light, 33% as moderate and 61% as hard.Conclusions:The GALM program met the intensity guidelines to increase cardiorespiratory fitness. The intensity and attractiveness of this physical activity program make it an interesting alternative for stimulating physical activity in sedentary and underactive older adults.

scholarly journals Relative Vigorous-Intensity Physical Activity Predicts Brain Microstructural Changes in Older Adults

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 445-445
Author(s):  
Jennifer Schrack ◽  
Bennett Landman ◽  
Amal Wanigatunga ◽  
Susan Resnick ◽  
Luigi Ferrucci ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Heart Rate ◽  
Mean Diffusivity ◽  
Parahippocampal Gyrus ◽  
Heart Rate Reserve ◽  
Cross Sectional ◽  
Microstructural Changes ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

Abstract Physical activity especially at moderate-to-vigorous intensity may preserve brain structure in old age. However, current findings are cross-sectional and rely on absolute intensity. This study aimed to examine whether relative or absolute vigorous-intensity physical activity (VPA) predicts brain microstructural changes. We analyzed 260 initially cognitively normal and well-functioning participants(age=70.5yrs) who had VPA data via ActiHeart and longitudinal brain microstructure by DTI(follow-up=3.7yrs). Associations of VPA with microstructural changes were examined using linear mixed-effects models, adjusted for demographics. Each SD higher relative VPA defined by heart rate reserve (i.e. 21 min/day) was significantly associated with less decline in memory-related microstructural integrity, including mean diffusivity of entorhinal cortex and parahippocampal gyrus and fractional anisotropy of uncinate fasciculus and cingulum-hippocampal part, and not executive/motor-related microstructure. Absolute VPA was not associated with microstructural markers. Among well-functioning older adults, participating in VPA defined by heart rate reserve may predict less brain microstructural decline in memory-related areas.

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