scholarly journals Perceived exertion and energy expenditure during physical activities in healthy young people and older adults

Folia Medica ◽  
2021 ◽  
Vol 63 (4) ◽  
pp. 502-510
Author(s):  
Oyéné Kossi ◽  
Justine Lacroix ◽  
Maxence Compagnat ◽  
Jean Christophe Daviet ◽  
Stéphane Mandigout
Keyword(s):  
Older Adults ◽  
Young People ◽  
Energy Expenditure ◽  
Perceived Exertion ◽  
Cross Sectional Study ◽  
Rating Of Perceived Exertion ◽  
Treadmill Running ◽  
Single Session ◽  
Cross Sectional ◽  
Healthy Young People

Aim: To test the validity of Borg’s 6–20 rating of perceived exertion scale in assessing the exertion intensity over a multi-activity session in young and older adults.Materials and methods: This cross-sectional study included 56 healthy participants. All participants underwent a single session of activities including working on a computer, treadmill walking, biking, and treadmill running. Results: Results showed a non-significant correlation between the overall perceived exertion and energy expenditure in young people (Rho=−0.05, p=0.75) and in older adults (Rho=−0.05, p=0.78) for the whole session. However, results showed that older adults perceived significantly higher exertion compared to young people while working on a computer, walking and running, whereas they presented lower energy expenditure while resting and working on a computer. Conclusions: Combining the perceived exertion method with other commonly used methods to estimate exercise intensity would be recommended for older adults.

scholarly journals The Intensity of Chair-Assisted Exercises in Cognitively Healthy Older Adults

2013 ◽  
Vol 21 (3) ◽  
pp. 260-271
Author(s):  
Karin M. Volkers ◽  
Tim C.W. van Dijk ◽  
Laura H. Eggermont ◽  
A. Peter Hollander ◽  
Erik J.A. Scherder
Keyword(s):  
Older Adults ◽  
Sports Medicine ◽  
Healthy Aging ◽  
Perceived Exertion ◽  
The Elderly ◽  
Carbon Dioxide Production ◽  
Cross Sectional Study ◽  
Rating Of Perceived Exertion ◽  
Moderate Intensity ◽  
Cross Sectional

Introduction:The American College of Sports Medicine prescribes regular performance of at least moderate-intensity physical activity for healthy aging. This study examined whether 1 session of 30 min of chair-assisted exercises for the elderly meets this intensity criterion.Method:This cross-sectional study included 47 cognitively healthy volunteers (mean age 84 years). During the performance of 30 min of chair-assisted exercises the authors determined oxygen uptake (VO2), carbon dioxide production, heart rate (HR), and rating of perceived exertion (RPE). These measures were expressed as a percentage of the estimated maximal VO2 (VO2max) and the estimated maximal HR (HRmax) and estimated as metabolic equivalent units (METs).Results:Participants performed chair-assisted exercises at 61.0% ± 14.7% of VO2max, 67.6% ± 11.3% HRmax, 3.9 ± 0.9 METs, and 13.1 ± 2.1 RPE.Conclusions:The intensity of these chair-assisted exercises is at least moderate for older adults, which is necessary for healthy aging.

Making the Grade: An Exploration of Incline Running on a Bodyweight-Supportive Treadmill

2020 ◽  
pp. 1-5
Author(s):  
Megan Wagner ◽  
Kevin D. Dames
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Repeated Measures ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Treadmill Running ◽  
Metabolic Effects ◽  
Metabolic Demand ◽  
Experimental Conditions ◽  
Cross Sectional

Context: Bodyweight-supporting treadmills are popular rehabilitation tools for athletes recovering from impact-related injuries because they reduce ground reaction forces during running. However, the overall metabolic demand of a given running speed is also reduced, meaning athletes who return to competition after using such a device in rehabilitation may not be as fit as they had been prior to their injury. Objective: To explore the metabolic effects of adding incline during bodyweight-supported treadmill running. Design: Cross-sectional. Setting: Research laboratory. Participants: Fourteen apparently healthy, recreational runners (6 females and 8 males; 21 [3] y, 1.71 [0.08] m, 63.11 [6.86] kg). Interventions: The participants performed steady-state running trials on a bodyweight-supporting treadmill at 8.5 mph. The control condition was no incline and no bodyweight support. All experimental conditions were at 30% bodyweight support. The participants began the sequence of experimental conditions at 0% incline; this increased to 1%, and from there on, 2% incline increases were introduced until a 15% grade was reached. Repeated-measures analysis of variance was used to compare all bodyweight-support conditions against the control condition. Main Outcome Measures: Oxygen consumption, heart rate, and rating of perceived exertion. Results: Level running with 30% bodyweight support reduced oxygen consumption by 21.6% (P < .001) and heart rate by 12.0% (P < .001) compared with the control. Each 2% increase in incline with bodyweight support increased oxygen consumption by 6.4% and heart rate by 3.2% on average. A 7% incline elicited similar physiological measures as the unsupported, level condition. However, the perceived intensity of this incline with bodyweight support was greater than the unsupported condition (P < .001). Conclusions: Athletes can maintain training intensity while running on a bodyweight-supporting treadmill by introducing incline. Rehabilitation programs should rely on quantitative rather than qualitative data to drive exercise prescription in this modality.

Internal and External Training Workload Quantification in 4 Experienced Paracanoeing Athletes

2021 ◽  
pp. 1-7
Author(s):  
Frederico Ribeiro Neto ◽  
Ramires Alsamir Tibana ◽  
Jefferson Rodrigues Dorneles ◽  
Rodrigo Rodrigues Gomes Costa
Keyword(s):  
Perceived Exertion ◽  
Cross Sectional Study ◽  
Rating Of Perceived Exertion ◽  
Motor Impairments ◽  
Cross Sectional ◽  
Training Time ◽  
Rehabilitation Hospital ◽  
Outcomes Measures ◽  
Weekly Training ◽  
External Training

Context: Paracanoeing is one of the adapted sports eligible for different motor impairments. The acute:chronic workload ratio (ACWR) is an index between acute and chronic training workload. However, no studies have analyzed this variable in paracanoeing, relating it with training recovery markers. Objective: This study aimed to quantify the internal (session rating of perceived exertion) and external (distance traveled and total training time) training workloads in 4 experienced paracanoe athletes over 9 months and 5 canoeing events. Design: Cross-sectional study. Setting: Rehabilitation Hospital Network, Paralympic Program. Participants: Four experienced paracanoe athletes participated in 36 weeks of training for 5 events. Main Outcomes Measures: The daily and weekly training workload, monotony, ACWR, distance, and total training time were described for all the training phases. The perceived recovery status scale (PRS) and medicine ball throw (MBT) were used to quantify recovery. Results: The average daily and weekly training workload varied from 213.1 to 239.3 and 767.3 to 1036.8 arbitrary units, respectively. Average ACWR results ranged from 0.96 to 1.10 in the 4 athletes, findings that were outside the safety zone in 38% of the training weeks. All the correlations between MBT and PRS were classified as weak (ρ between .20 and .39, P > .05). ACWR showed a very weak correlation with MBT and moderately and highly significant correlations with PRS in 2 athletes, respectively. Conclusions: The training workloads of 4 paracanoe athletes may serve as a comparison with other periodization models. Pretraining recovery assessments (MBT and PRS) exhibited a low, nonsignificant correlation. However, ACWR correlated significantly with PRS in 2 athletes and might be a suitable tool for daily training adjustments.

scholarly journals Leisure-Time Physical Activity and Metabolic Syndrome in Older Adults

2019 ◽  
Vol 16 (18) ◽  
pp. 3358 ◽  
Author(s):  
Gallardo-Alfaro ◽  
Bibiloni ◽  
Mateos ◽  
Ugarriza ◽  
Tur
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Metabolic Syndrome ◽  
Energy Expenditure ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Vigorous Physical Activity ◽  
Cross Sectional Study ◽  
Moderate Physical Activity ◽  
Cross Sectional

Background: Metabolic syndrome (MetS) is a cluster of risk factors for cardiovascular disease, atherosclerosis and diabetes mellitus type 2 which may be reduced by practicing regular physical activity. Objective: To assess the leisure-time physical activity (LTPA) of older adults with MetS and without MetS. Methods: Cross-sectional study of older adults (55–80 years old) from Balearic Islands (Spain) with MetS (n = 333; 55% men) and without MetS (n = 144; 43.8% men). LTPA was assessed with the validated Spanish version of the Minnesota LTPA Questionnaire. Two criteria of physically active were used: >150 min/week of moderate physical activity or >75 min/week of vigorous physical activity or a combination of both, and total leisure-time energy expenditure of >300 MET·min/day. Sociodemographic and lifestyle characteristics, anthropometric variables, MetS components, and adherence to the Mediterranean diet (MD) were also measured. Results: MetS subjects showed lower energy expenditure in LTPA, lower adherence to the MD, higher obesity and waist circumference, and were less active than non-MetS peers. LTPA increased as participants got older and there was higher LTPA intensity as educational level increased. Adherence to MD was as high as LTPA was. Conclusions: MetS is associated with physical inactivity and unhealthy diet. To increase LTPA recommendations and raise awareness in the population about the health benefits of PA and high adherence to MD is highly recommended.

Determination of Submaximal and Maximal Training Zones From a 3-Stage, Variable-Duration, Perceptually Regulated Track Test

2020 ◽  
Vol 15 (6) ◽  
pp. 853-861
Author(s):  
Claire A. Molinari ◽  
Florent Palacin ◽  
Luc Poinsard ◽  
Véronique L. Billat
Keyword(s):  
Oxygen Consumption ◽  
Perceived Exertion ◽  
Maximal Oxygen Consumption ◽  
Cross Sectional Study ◽  
Rating Of Perceived Exertion ◽  
Exercise Tests ◽  
Cross Sectional ◽  
Recreational Runners ◽  
The University ◽  
Track Test

Purpose: To validate a new perceptually regulated, self-paced maximal oxygen consumption field test (the Running Advisor Billat Training [RABIT] test) that can be used by recreational runners to define personalized training zones. Design: In a cross-sectional study, male and female recreational runners (N = 12; mean [SD] age = 43 [8] y) completed 3 maximal exercise tests (2 RABIT tests and a University of Montreal Track Test), with a 48-hour interval between tests. Methods: The University of Montreal Track Test was a continuous, incremental track test with a 0.5-km·h−1 increment every minute until exhaustion. The RABIT tests were conducted at intensities of 11, 14, and 17 on the rating of perceived exertion (RPE) scale for 10, 5, and 3 minutes, respectively, with a 1-minute rest between efforts. Results: The 2 RABIT tests and the University of Montreal Track Test gave similar mean (SD) maximal oxygen consumption values (53.9 [6.4], 56.4 [9.1], and 55.4 [7.6] mL·kg−1·min−1, respectively, P = .722). The cardiorespiratory and speed responses were reliable as a function of the running intensity (RPE: 11, 14, and 17) and the relative time point for each RPE stage. Indeed, the oxygen consumption, heart rate, ventilation, and speed values did not differ significantly when the running time was expressed as a relative duration of 30%, 60%, or 90% (ie, at 3, 6, and 9 min of a 10-min effort at RPE 11; P = .997). Conclusions: The results demonstrate that the RABIT test is a valid method for defining submaximal and maximal training zones in recreational runners.

Energy System Assessment in Survivors of Breast Cancer

2020 ◽  
Vol 100 (3) ◽  
pp. 438-446
Author(s):  
Antonio Ignacio Cuesta-Vargas ◽  
Jena Buchan ◽  
Bella Pajares ◽  
Emilio Alba ◽  
Manuel Trinidad-Fernández ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Lower Limb ◽  
Perceived Exertion ◽  
Functional Limitations ◽  
Energy System ◽  
Cross Sectional Study ◽  
Rating Of Perceived Exertion ◽  
Cross Sectional ◽  
Cancer Related Fatigue ◽  
System Assessment

Abstract Background Survivors of breast cancer commonly report functional limitations, including cancer-related fatigue (CRF) and decreased aerobic capacity. One key gap is addressing the 3 energy systems (aerobic, anaerobic lactic, and alactic), requiring assessment to establish a baseline exercise intensity and duration. Objective This study examined the feasibility of energy system–based assessment, also providing descriptive values for assessment performance in this population. Design This was a cross-sectional study. Methods Seventy-two posttreatment survivors of breast cancer were recruited. Following a baseline musculoskeletal assessment, women attempted 3 energy system assessments: submaximal aerobic (multistage treadmill), anaerobic alactic (30-second sit-to-stand [30-STS]), and anaerobic lactic (adapted burpees). Heart rate (HR) and rating of perceived exertion (RPE) were recorded. Secondary outcomes included body composition, CRF, and upper- and lower-limb functionality. Results Seventy of 72 participants performed the 30-STS and 30 completed the adapted burpees task. HR and RPE specific to each task were correlated, reflecting increased intensity. Women reported low-moderate levels of CRF scores (3% [2.1]) and moderate-high functionality levels (upper-limb: 65.8% [23.3]; lower-limb: 63.7% [34.7]). Limitations All survivors of breast cancer had relatively low levels of CRF and moderate functioning. Additionally, on average, participants were classified as “overweight” based on BMI. Conclusion This study is the first to our knowledge to demonstrate feasibility of energy system assessment in survivors of breast cancer. Using a combination of HR and RPE, as well as baseline assessment of each energy system, clinicians may improve ability to prescribe personalized exercise and give patients greater ability to self-monitor intensity and progress.

scholarly journals Physiological Responses and Nutritional Intake during a 7-Day Treadmill Running World Record

2020 ◽  
Vol 17 (16) ◽  
pp. 5962
Author(s):  
Nicolas Berger ◽  
Daniel Cooley ◽  
Michael Graham ◽  
Claire Harrison ◽  
Russ Best
Keyword(s):  
Energy Expenditure ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Rating Of Perceived Exertion ◽  
Treadmill Running ◽  
Energy Deficit ◽  
World Record ◽  
Prolonged Duration ◽  
Nutrition And Hydration ◽  
Ultra Running

Ultra-running comprises running events longer than a marathon (>42.2 km). The prolonged duration of ultra-running leads to decrements in most or all physiological parameters and considerable energy expenditure (EE) and energy deficits. SG, 47 years, 162.5 cm, 49 kg, VO2max 4 mL/kg/min−1/2.37 L/min−1, ran continuously for 7 days on a treadmill in 3 h blocks followed by 30 min breaks and slept from 1–5 a.m. Heart rate (HR) oxygen uptake (VO2), rating of perceived exertion, weight, blood lactate (mmol·L−1), haemoglobin (g·dL), haematocrit (%) and glucose (mmol·L−1), and nutrition and hydration were recorded. SG ran for 17.5 h/day, covering ~120 km/day at ~7 km/h. Energy expenditure for each 24 h period was 6878 kcal/day and energy intake (EI) was 2701 kcal/day. EE was 382 kcal/h, with 66.6% from fat and 33.4% from carbohydrate oxidation. 7 day EI was 26,989 kcal and EE was 48,147 kcal, with a total energy deficit (ED) of 21,158 kcal. Average VO2 was 1.2 L·min−1/24.7 mL·kg·min−1, Respriatory echange ratio (RER) 0.80 ± 0.03, HR 120–125 b·min−1. Weight increased from 48.6 to 49.5 kg. Haemoglobin decreased from 13.7 to 11 g·dL and haematocrit decreased from 40% to 33%. SG ran 833.05 km. SG exhibits an enhanced fat metabolism through which she had a large daily ED. Her success can be attributed to a combination of physiological and psychological factors.

scholarly journals PRECISION OF ANTHROPOMETRIC EQUATIONS TO ESTIMATE TOTAL ENERGY EXPENDITURE OF OLDER ADULTS WITH SARCOPENIA: A CROSS SECTIONAL STUDY

2020 ◽  
pp. 1-17
Author(s):  
Pedro Pugliesi Abdalla ◽  
Anderson dos Santos Carvalho ◽  
Nilo César Ramos ◽  
José Augusto Gonçalves Marini ◽  
Michael Duncan ◽  
...  
Keyword(s):  
Older Adults ◽  
Energy Expenditure ◽  
Total Energy ◽  
Good Alternative ◽  
Cross Sectional Study ◽  
Total Energy Expenditure ◽  
Community Dwelling ◽  
Cross Sectional ◽  
Body Dimensions ◽  
Energy Needs

Purpose: The accuracy and errors of prediction of equations that estimate energy expenditure are unknown to seniors with sarcopenia. This study assessed the precision of predictive equations to estimate energy needs of sarcopenic seniors. Methods: Ninety-four community-dwelling older adults (female: 66; mean age: 75.9[5.7]) were tested for body dimensions derived from DXA. Performance tests and diagnosis of sarcopenia were performed. The total energy expenditure (TEE) of sarcopenic seniors (n=10) was measured by accelerometry and compared with three anthropometric equations: DRIs, Escott-Stump with upper (Escott-Stumpupp) and low energy margin (Escott-Stumplow). Results: Except for height, all other variables of body dimensions of sarcopenic seniors were smaller than non-sarcopenic ones (p<0.05). The slightly lower TEE values in the Escott-Stumplow equation were not different from accelerometry (-53kcal; t=0.606; p=0.560) but were overestimated by the DRIs (+358kcal; t=-3.163; p=0.011) and Escott-Stumpupp (+240kcal; t=-5.817; p<0.001), confirmed due to lack of agreement (Bland-Altman) with measured TEE. Conclusion: Smaller body dimensions of sarcopenic seniors suggest that their energy needs should be estimated from specific resources. The TEE assessed by the Escott-Stumplow equation was similar to that measured by accelerometry and therefore may be a good alternative for sarcopenic seniors where direct measurement of TEE is not possible.

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