Relationship Between the Borg Scale Rating of Perceived Exertion and Leg-Muscle Deoxygenation During Incremental Exercise in Healthy Adults

The aim was to evaluate the effect of caffeine (CAF) and extra virgin coconut oil (CO), isolated or combined, on running performance in runners. Methods: A randomized, placebo-controlled, and crossover study was conducted with thirteen recreational runners aged 18–40. All volunteers performed a 1600 m time trial at a 400 m track, each ingesting four different substances: (1) placebo (water), (2) decaffeinated coffee plus isolated CAF (DECAF + CAF), (3) decaffeinated coffee plus isolated CAF plus soy oil (DECAF + CAF + SO), and (4) decaffeinated coffee plus isolated CAF plus extra virgin coconut oil (DECAF + CAF + CO). The substances were ingested 60 min before the trials, the order of the situations was randomized, and there were one-week intervals between them. At the end of the trials, the Borg scale was applied to evaluate the rating of perceived exertion (RPE) and the time was measured. Results: Our data did not show differences in running time among the trials (placebo: 7.64 ± 0.80, DECAF + CAF: 7.61 ± 1.02, DECAF + CAF + SO: 7.66 ± 0.89, and DECAF + CAF + CO: 7.58 ± 0.74 min; p = 0.93), nor RPE (placebo: 6.15 ± 2.03, DECAF + CAF: 6.00 ± 2.27, DECAF + CAF + SO: 6.54 ± 2.73, and DECAF + CAF + CO: 6.00 ± 2.45 score; p = 0.99). Lactate concentrations (placebo: 6.23 ± 2.72, DECAF + CAF: 4.43 ± 3.77, DECAF + CAF + SO: 5.29 ± 3.77, and DECAF + CAF + CO: 6.17 ± 4.18 mmol/L; p = 0.55) also was not modified. Conclusion: Our study shows that ingestion of decaffeinated coffee with the addition of isolated CAF and extra virgin CO, either isolated or combined, does not improve 1600 m running times, nor influence RPE and lactate concentrations in recreational runners. Thus, combination of coffee with CO as a pre-workout supplement seems to be unsubstantiated for a short-distance race.

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Effects of a 20-min Nap after Sleep Deprivation on Brain Activity and Soccer Performance

International Journal of Sports Medicine ◽

10.1055/a-1192-6187 ◽

2020 ◽

Vol 41 (14) ◽

pp. 1009-1016

Author(s):

Amornpan Ajjimaporn ◽

Papatsorn Ramyarangsi ◽

Vorasith Siripornpanich

Keyword(s):

Sleep Deprivation ◽

Perceived Exertion ◽

Brain Activity ◽

Rating Of Perceived Exertion ◽

Soccer Players ◽

Mean Power ◽

Auditory Reaction Time ◽

Normal Sleep ◽

The Mean ◽

Leg Muscle

AbstractWe examined effects of a 20-min nap following 3 h of sleep deprivation on brain wave activity, auditory reaction time, the running-based anaerobic sprint test, leg muscle strength and the rating of perceived exertion in male college soccer players. Eleven players underwent three sleep conditions; normal sleep, sleep deprivation and 20-min nap after sleep deprivation. The sleep deprivation demonstrated an increase in the mean power of delta waves over the frontal area and a decrease in the mean power of alpha waves over the parietal area compared to the normal sleep. The nap and the sleep deprivation showed an increase in auditory reaction time compared with those in the normal sleep. The sleep deprivation demonstrated a decrease in the running-based anaerobic sprint test compared to the normal sleep, whereas the nap has partially reversed only minimal power and average power of the running-based anaerobic sprint test. The nap showed a recovery effect on leg muscle strength, but not on the rating of perceived exertion compared with the sleep deprivation. Thus, a 20-min nap after sleep deprivation did not completely return brain activity back to active state and did not entirely reverse the negative impact of sleep deprivation on soccer performance in soccer players.

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Incremental exercise test performance with and without a respiratory gas collection system

South African Journal of Sports Medicine ◽

10.17159/2413-3108/2008/v20i2a628 ◽

2016 ◽

Vol 20 (2) ◽

Author(s):

J Clark

Keyword(s):

Exercise Testing ◽

Exercise Test ◽

Test Performance ◽

Perceived Exertion ◽

Lactate Concentration ◽

Incremental Exercise ◽

Rating Of Perceived Exertion ◽

Time To Exhaustion ◽

Collection System ◽

Incremental Exercise Test

Objective. Despite their widespread use in exercise testing, few data are available on the effect of wearing respiratory gas collection (RGC) systems on exercise test performance. Industrial-type mask wear is thought to impair exercise performance through increased respiratory dead space, flow resistance and/or discomfort when compared with RGC facemasks, but whether performance decrements exist for RGC facemask wear versus non-wear is unclear. The objective of this study was to evaluate the difference in incremental exercise test performance with and without a RGC system. Incremental exercise test performance with and without a respiratory gas collection system Design. Twenty moderately active males (age 21.0 ± 1.9 years; VO2peak 55.9 ± 3.0 ml∙kg-1∙min-1) performed two progressive treadmill tests to volitional exhaustion. In random order subjects ran with (MASK) or without (NO-MASK) a RGC facemask and flow sensor connected to a gas analyzer. Descriptive data (mean ± SD) were determined for all parameters. The Wilcoxon signed rank test for paired differences was used to assess mean differences between MASK and NO-MASK conditions. Results. Exercise time to exhaustion, peak treadmill speed, peak blood lactate concentration, peak heart rate and rating of perceived exertion (RPE) were not different (p>0.05) between MASK and NO-MASK conditions. Conclusions. Incremental exercise test performance is not adversely affected by RGC and analysis equipment, at least in short duration progressive treadmill exercise. Respiratory gas analysis during exercise testing for diagnostic, performance assessment or training prescription purposes would appear to be unaffected by RGC systems.

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Relationship of Heart Rate, Perceived Exertion, and Intra-Abdominal Pressure in Women

Journal of Clinical Exercise Physiology ◽

10.31189/2165-6193-9.3.97 ◽

2020 ◽

Vol 9 (3) ◽

pp. 97-103

Author(s):

Ali E. Wolpern ◽

Johanna D. de Gennaro ◽

Timothy A. Brusseau ◽

Wonwoo Byun ◽

Marlene J. Egger ◽

...

Keyword(s):

Heart Rate ◽

Pelvic Floor ◽

Aerobic Fitness ◽

Perceived Exertion ◽

Pearson Correlation ◽

Incremental Exercise ◽

Rating Of Perceived Exertion ◽

Future Research ◽

Abdominal Pressure ◽

Relationship Of

ABSTRACT Background: Exercise increases intra-abdominal pressure (IAP) acutely, which may impact the pelvic floor of women. IAP during exercise demonstrates high variability among women but is not routinely assessed. Assessing less invasive measures related to IAP during exercise may facilitate study of how IAP impacts the pelvic floor. Methods: The objective of this study was to investigate the relationship of heart rate and rating of perceived exertion (RPE) with IAP during a standard treadmill test. We describe the trend of IAP by predicted aerobic fitness during incremental exercise. IAP was measured using a validated transducer placed in the upper vagina. Heart rate and RPE were collected during the first 3 stages of the standard Bruce treadmill protocol. Relationships of heart rate and RPE with IAP were determined by Pearson correlation coefficients. Predicted aerobic fitness values for each participant were ranked in tertiles with IAP by treadmill stage. Results: Twenty-four women participated in this study (mean age: 24.7 ± 5.4 years; body mass index: 22.5 ± 2.2 kg·m−2). There were significant relationships between heart rate and IAP (r = 0.67, P < 0.001) and RPE and IAP (r = 0.60, P < 0.001) across treadmill stages. Tertiles of predicted aerobic fitness and IAP displayed similar trends as other exercise measures such as heart rate and ventilation during incremental exercise. Conclusion: Heart rate and RPE could be used as proxy measures of IAP during incremental exercise. Aerobic fitness may help explain IAP variability in women and provide context for future research on IAP and pelvic floor health.

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Serious Game Platform as a Possibility for Home-Based Telerehabilitation for Individuals With Cerebral Palsy During COVID-19 Quarantine – A Cross-Sectional Pilot Study

Frontiers in Psychology ◽

10.3389/fpsyg.2021.622678 ◽

2021 ◽

Vol 12 ◽

Author(s):

Talita Dias da Silva ◽

Paula Lumy da Silva ◽

Elisa de Jesus Valenzuela ◽

Eduardo Dati Dias ◽

Amanda Orasmo Simcsik ◽

...

Keyword(s):

Physical Activity ◽

Cerebral Palsy ◽

Perceived Exertion ◽

Serious Game ◽

Rating Of Perceived Exertion ◽

Physical Activity Intensity ◽

Borg Scale ◽

Cross Sectional ◽

Activity Intensity ◽

Home Based

IntroductionThere is a need to maintain rehabilitation activities and motivate movement and physical activity during quarantine in individuals with Cerebral Palsy (CP).ObjectiveThis paper sets out to evaluate the feasibility and potential benefits of using computer serious game in a non-immersive virtual reality (VR) implemented and evaluated completely remotely in participants with CP for Home-Based Telerehabilitation during the quarantine period for COVID-19.MethodsUsing a cross-sectional design, a total of 44 individuals participated in this study between March and June 2020, 22 of which had CP (14 males and 8 females, mean age = 19 years, ranging between 11 and 28 years) and 22 typically developing individuals, matched by age and sex to the individuals with CP. Participants practiced a coincident timing game1 and we measured movement performance and physical activity intensity using the rating of perceived exertion Borg scale.ResultsAll participants were able to engage with the VR therapy remotely, reported enjoying sessions, and improved performance in some practice moments. The most important result in this cross-sectional study was the significant increasing in rating of perceived exertion (through Borg scale) in both groups during practice and with CP presenting a higher rating of perceived exertion.ConclusionChildren with CP enjoyed participating, were able to perform at the same level as their peers on certain activities and increased both their performance and physical activity intensity when using the game, supporting the use of serious games for this group for home therapy and interactive games.Clinical Trials Registrationhttps://Clinicaltrials.gov, NCT04402034. Registered on May 20, 2020.

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Reliability of the rating of perceived exertion (Borg Scale) in post-stroke during 2 tasks of daily life

Annals of Physical and Rehabilitation Medicine ◽

10.1016/j.rehab.2017.07.017 ◽

2017 ◽

Vol 60 ◽

pp. e1-e2

Author(s):

Maxence Compagnat ◽

Jean Christophe Daviet ◽

Stéphane Mandigout ◽

Justine Lacroix ◽

Nicolas Vuillerme ◽

...

Keyword(s):

Perceived Exertion ◽

Daily Life ◽

Rating Of Perceived Exertion ◽

Borg Scale ◽

Post Stroke

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Does rating of perceived exertion result in target exercise intensity during interval training in cardiac rehabilitation? A study of the Borg scale versus a heart rate monitor

Journal of Science and Medicine in Sport ◽

10.1016/j.jsams.2013.07.019 ◽

2014 ◽

Vol 17 (5) ◽

pp. 541-545 ◽

Cited By ~ 24

Author(s):

Inger-Lise Aamot ◽

Siv Hege Forbord ◽

Trine Karlsen ◽

Asbjørn Støylen

Keyword(s):

Heart Rate ◽

Cardiac Rehabilitation ◽

Exercise Intensity ◽

Perceived Exertion ◽

Interval Training ◽

Rating Of Perceived Exertion ◽

Borg Scale ◽

Heart Rate Monitor

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A simulated rugby match protocol induces physiological fatigue without decreased individual scrummaging performance

South African Journal of Sports Medicine ◽

10.17159/2078-516x/2017/v29i1a3084 ◽

2017 ◽

Vol 29 (1) ◽

pp. 1-6 ◽

Cited By ~ 2

Author(s):

A Green ◽

S Kerr ◽

B Olivier ◽

R Meiring ◽

C Dafkin ◽

...

Keyword(s):

Heart Rate ◽

Perceived Exertion ◽

Kinase Activity ◽

Rugby Union ◽

Creatine Kinase Activity ◽

Rating Of Perceived Exertion ◽

Subjective Ratings ◽

Borg Scale ◽

Simulated Game ◽

Physiological Markers

Background: A rugby union game consists of 80 minutes of strenuous exertion. Forwards are required to participate in the arduous activity of scrummaging throughout a game.Objectives: The purpose of this study was to identify whether rugby-match simulated fatigue modified individual scrummaging technique and reduced performance.Methods: Twelve forwards (body mass 106.2±13.3 kg; stature 179.5±8.4 cm) had individual scrum kinetics and kinematics assessed prior to and following a protocol that simulated a rugby match. The simulated rugby match protocol required participants to run at various velocities and perform rugby specific tasks. Rating of Perceived Exertion (RPE) was assessed using a 6-20 Borg scale and Visual Analogue Scale (VAS). Blood lactate, heart rate and RPE were measured prior to, at mid-point and after the simulated game, while markers of muscle damage (blood creatine kinase activity (CK) and urea) were measured prior to and following the protocol.Results: RPE (p<0.0001) and VAS (p<0.0001) showed significant increases between the pre- and post-simulation values. Of the physiological markers, heart rate (p<0.0001) and blood urea concentration (p=0.004) increased following the match simulation. No significant differences were observed for blood CK (p=0.281), individual scrummaging forces (p=0.433) or in the kinematic variables following the protocol. While physiological fatigue and subjective ratings of physiological fatigue may develop during a rugby simulation, no differences were observed in peak forces or in body kinematics at peak force.Conclusion: Physiological fatigue does not influence individual scrummaging performance and technique.

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Incremental exercise test performance with and without a respiratory gas collection system

South African Journal of Sports Medicine ◽

10.17159/2078-516x/2008/v20i2a628 ◽

2017 ◽

Vol 20 (2) ◽

Author(s):

J Clark

Keyword(s):

Exercise Testing ◽

Exercise Test ◽

Test Performance ◽

Perceived Exertion ◽

Lactate Concentration ◽

Incremental Exercise ◽

Rating Of Perceived Exertion ◽

Time To Exhaustion ◽

Collection System ◽

Incremental Exercise Test

Objective. Despite their widespread use in exercise testing, few data are available on the effect of wearing respiratory gas collection (RGC) systems on exercise test performance. Industrial-type mask wear is thought to impair exercise performance through increased respiratory dead space, flow resistance and/or discomfort when compared with RGC facemasks, but whether performance decrements exist for RGC facemask wear versus non-wear is unclear. The objective of this study was to evaluate the difference in incremental exercise test performance with and without a RGC system. Incremental exercise test performance with and without a respiratory gas collection system Design. Twenty moderately active males (age 21.0 ± 1.9 years; VO2peak 55.9 ± 3.0 ml∙kg-1∙min-1) performed two progressive treadmill tests to volitional exhaustion. In random order subjects ran with (MASK) or without (NO-MASK) a RGC facemask and flow sensor connected to a gas analyzer. Descriptive data (mean ± SD) were determined for all parameters. The Wilcoxon signed rank test for paired differences was used to assess mean differences between MASK and NO-MASK conditions. Results. Exercise time to exhaustion, peak treadmill speed, peak blood lactate concentration, peak heart rate and rating of perceived exertion (RPE) were not different (p>0.05) between MASK and NO-MASK conditions. Conclusions. Incremental exercise test performance is not adversely affected by RGC and analysis equipment, at least in short duration progressive treadmill exercise. Respiratory gas analysis during exercise testing for diagnostic, performance assessment or training prescription purposes would appear to be unaffected by RGC systems.

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