scholarly journals A comparison of physiological responses and rating of perceived exertion in two modes of aerobic exercise in men and women over 50 years of age * Commentary

2002 ◽  
Vol 36 (4) ◽  
pp. 276-281 ◽  
Author(s):  
S Grant
Keyword(s):  
Aerobic Exercise ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Rating Of Perceived Exertion ◽  
Men And Women

scholarly journals Comparison of Physiological Responses and Training Load between Different CrossFit® Workouts with Equalized Volume in Men and Women

Life ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 586
Author(s):  
Ronam Toledo ◽  
Marcelo R. Dias ◽  
Ramon Toledo ◽  
Renato Erotides ◽  
Daniel S. Pinto ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Training Load ◽  
Rating Of Perceived Exertion ◽  
Total Work ◽  
Men And Women ◽  
Volume Measurements ◽  
And Training

The purpose of the present study was to compare the heart rate (HR), blood lactate and training load between different CrossFit® workouts, with equalized total work volumes in men and women. The study included 23 individuals (13 men and 10 women) experienced in CrossFit® training, who performed two workouts with different training types (as many reps as possible (AMRAP) and ‘for time’) but an equalized volume. Measurements of lactate, HR and rating of perceived exertion (RPE) were performed. The results show that there was no HR interaction between workout time and sex (p = 0.822; η2 = 0.006) and between workout type and sex (p = 0.064, η2 = 0.803). The HR significantly differed during each workout type (p < 0.001, η2 = 0.621), but not between the two workout types (p = 0.552, η2 = 0.017). Lactate showed no difference between the workout types (p = 0.474, η2 = 0.768), although the training load was higher (p = 0.033, η2 = 0.199) in women when they performed AMRAP. Altogether, the HR was not significantly different between training types or sex, while RPE, lactate and training load showed statistically significant differences depending on the group (women or men) or workout type (AMRAP or ‘for time’).

scholarly journals Comparison of Physiological Responses and Training Load Between Different CrossFit® Workouts with Equalized Volume in Men and Women

2021 ◽  
Author(s):  
Ronam Toledo ◽  
Marcelo R. Dias ◽  
Ramon Toledo ◽  
Renato Erotides ◽  
Daniel S. Pinto ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Training Load ◽  
Rating Of Perceived Exertion ◽  
Men And Women ◽  
Volume Measurements ◽  
And Training

The purpose of the present study was to compare heart rate (HR), blood lactate and training load between different CrossFit&reg; workouts, with equalized total volume in men and women. The study included 23 individuals (13 men and 10 women) experienced in CrossFit&reg; training, who performed two workouts with different training types (as many reps as possible - AMRAP and for time) but equalized volume. Measurements of lactate, HR and rating of perceived exertion (RPE) were performed. The results showed that there was no HR interaction between workout time and sex (p = 0.822; &eta;2 = 0.006] and between workout type and sex (p = 0.064, &eta;2 = 0.803). HR significantly differed during each workout type (p &lt;0.001, &eta;2 = 0.621), but not between the two workout types (p = 0.552, &eta;2 = 0.017). Lactate showed no difference between the workout types (p = 0.474, &eta;2 = 0.768), although the training load was higher (p = 0.033, &eta;2 = 0.199) in women when they performed AMRAP. Altogether, HR was not significantly different between training types or sex, while RPE, lactate and training load showed small differences depending on the group (women or men) or workout type (AMRAP or 'for time').

Physiological Responses and Perceived Exertion During International Taekwondo Competition

2009 ◽  
Vol 4 (4) ◽  
pp. 485-493 ◽  
Author(s):  
Craig A. Bridge ◽  
Michelle A. Jones ◽  
Barry Drust
Keyword(s):  
Blood Lactate ◽  
Perceived Exertion ◽  
Anaerobic Metabolism ◽  
Physiological Responses ◽  
Cardiovascular Responses ◽  
Capillary Blood ◽  
Rating Of Perceived Exertion ◽  
International Level ◽  
Combat Training ◽  
Aerobic And Anaerobic

Purpose:To investigate the physiological responses and perceived exertion during international Taekwondo competition.Methods:Eight male Taekwondo black belts (mean ± SD, age 22 ± 4 y, body mass 69.4 ± 13.4 kg, height 1.82 ± 0.10 m, competition experience 9 ± 5 y) took part in an international-level Taekwondo competition. Each combat included three 2-min rounds with 30 s of recovery between each round. Heart rate (HR) was recorded at 5-s intervals during each combat. Capillary blood lactate samples were taken from the fingertip 1 min before competition, directly after each round and 1 min after competition. Competitors’ rating of perceived exertion (RPE) was recorded for each round using Borg’s 6-to-20 scale.Results:HR (round 1: 175 ± 15 to round 3: 187 ± 8 beats·min−1; P < .05), percentage of HR maximum (round 1: 89 ± 8 to round 3: 96 ± 5% HRmax; P < .05), blood lactate (round 1: 7.5 ± 1.6 to round 3: 11.9 ± 2.1 mmol·L-1; P < .05) and RPE (round 1: 11 ± 2 to round 3: 14 ± 2; P < .05; mean ± SD) increased significantly across rounds.Conclusions:International-level Taekwondo competition elicited near-maximal cardiovascular responses, high blood lactate concentrations, and increases in competitors' RPE across combat. Training should therefore include exercise bouts that sufficiently stimulate both aerobic and anaerobic metabolism.

The Effects of Caffeine in Women during Aerobic-Dance Bench Stepping

2007 ◽  
Vol 17 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Jennifer N. Ahrens ◽  
Lisa K. Lloyd ◽  
Sylvia H. Crixell ◽  
John L. Walker
Keyword(s):  
Heart Rate ◽  
Perceived Exertion ◽  
Minute Ventilation ◽  
Physiological Responses ◽  
Rating Of Perceived Exertion ◽  
Caffeine Ingestion ◽  
Fitness Level ◽  
Aerobic Dance ◽  
Control Body ◽  
And Control

People of all ages and fitness levels participate regularly in aerobic-dance bench stepping (ADBS) to increase fitness and control body weight. Any reasonable method for enhancing the experience or effectiveness of ADBS would be beneficial. This study examined the acute effects of a single dose of caffeine on physiological responses during ADBS in women. When compared with a placebo, neither a 3- nor a 6-mg/kg dose of caffeine altered physiological responses or rating of perceived exertion (RPE) in 20 women (age 19–28 y) of average fitness level, not habituated to caffeine, while they performed an ADBS routine. Since neither dose of caffeine had any effect on VO2, Vco2, minute ventilation, respiratory-exchange ratio, rate of energy expenditure, heart rate, or RPE during ADBS exercise, it would not be prudent for a group exercise leader to recommend caffeine to increase energy cost or decrease perception of effort in an ADBS session. Furthermore, caffeine ingestion should not interfere with monitoring intensity using heart rate or RPE during ADBS.

scholarly journals Effect of Ambient Oxygen Content, Safety Shoe Type, and Lifting Frequency on Subject’s MAWL and Physiological Responses

2019 ◽  
Vol 16 (21) ◽  
pp. 4172 ◽  
Author(s):  
Atef M. Ghaleb ◽  
Mohamed Z. Ramadan ◽  
Ahmed Badwelan ◽  
Khalid Saad Aljaloud
Keyword(s):  
Heart Rate ◽  
Oxygen Content ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Erector Spinae ◽  
Rating Of Perceived Exertion ◽  
Independent Variables ◽  
Repeated Measures Design ◽  
Ambient Oxygen ◽  
Dependent Variables

Objective: The purpose of this study was to evaluate the lifting capabilities of individuals in hypoxia when they wear different types of safety shoes and to investigate the behavior of the physiological responses induced by the lifting process associated with those variables. Methods: An experimental design was used, based on two sessions. The first was training and acclimatization session, then an experimental lifting phase. A total of ten male students of King Saud University were recruited in the study. A four-way repeated measures design, with four independent variables and six dependent variables, was used in this research. The independent variables that were studied in the experimental lifting phase were: ambient oxygen content (15%, 18%, and 21%), safety shoes type (light-duty, medium-duty, and heavy-duty), lifting frequency (1 and 4 lifts/min), and replication (first and second trials). The dependent variables were also: maximum acceptable weights lifting using the psychophysical technique, heart rate (HR), electromyography (EMG) of (biceps brachii, trapezius, anterior deltoid, and erector spinae), safety shoes discomfort rating, rating of perceived exertion, and ambient oxygen discomfort rating. Results: The maximum acceptable weights lifting that were selected by participants at lower levels of the independent variables (ambient oxygen content 21%, lifting frequency 1 lift/min, and first replication) were significantly higher than at high levels of the independent variables (ambient oxygen content 15%, lifting frequency 4 lift/min, and second replication). Several interaction effects were also significant. Conclusions: It provides evidence that the ambient oxygen content increases the intensity of workload in lifting tasks. It showed that oxygen content affects the psychophysical selection of maximum acceptable weights lifting and the physiological responses represented in muscular activities and heart rate. It suggests that ambient oxygen content must be considered along with the type of safety shoes worn when the lifting task at altitudes occurs.

Physiological responses on the Concept II BikeErg and Concept II RowErg in well-trained male rowers

2020 ◽  
pp. 174795412096818
Author(s):  
Kirstie J Turner ◽  
Anthony J Rice
Keyword(s):  
Power Output ◽  
Perceived Exertion ◽  
Minute Ventilation ◽  
Physiological Responses ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Carbon Dioxide Production ◽  
Recovery Phase ◽  
Rating Of Perceived Exertion ◽  
Rate Of Oxygen Consumption

Stationary cycling is a common training mode of rowers, used to provide variety in training programs and prevent overuse injuries commonly associated with the repetitive nature of the rowing stroke. The purpose of this study was to investigate the differences in physiological responses on a Concept II BikeErg (Concept II BikeErg; Concept2 Inc., US) and Concept II RowErg (Concept II Model D; Concept2 Inc., US) at matched submaximal workloads so training load can be appropriately prescribed for stationary cycling. Ten well-trained, male rowers completed 6 min of exercise at four submaximal workloads (50%, 62.5%, 75% and 87.5% of their most recent 2000 m RowErg score) interspersed with 2-minute recovery periods on both ergometers in a single day. Ergometer order was randomised and balanced between groups. At matched power output (PO) results while on the RowErg were significantly higher across all workloads for rate of oxygen consumption ([Formula: see text]), rate of carbon dioxide production ([Formula: see text]), minute ventilation ([Formula: see text]) and heart rate (HR) (p < 0.05) and across the final two workloads for Rating of Perceived Exertion (RPE) and blood lactate concentration (BLa) (p < 0.05). When oxygen uptake at a fixed value ([Formula: see text] = 3.5 L.min−1) was matched between groups results while on the RowErg were significantly lower for PO, BLa, [Formula: see text], RER and RPE whereas [Formula: see text] and HR were similar to the BikeErg. These results support the understanding that displayed power output on the RowErg does not account for all work done during the rowing stroke cycle, specifically during the recovery phase. In conclusion, the physiological responses on the Concept II BikeErg are no more closely aligned to the Concept II RowErg than previously shown for similar cycle ergometers from different manufacturers. Due to the lack of consistency between Concept II BikeErg and Concept II RowErg PO, HR is better suited for the prescription of training loads on the BikeErg.

scholarly journals Men are more fatigable than strength-matched women when performing intermittent submaximal contractions

2004 ◽  
Vol 96 (6) ◽  
pp. 2125-2132 ◽  
Author(s):  
Sandra K. Hunter ◽  
Ashley Critchlow ◽  
In-Sik Shin ◽  
Roger M. Enoka
Keyword(s):  
Perceived Exertion ◽  
Voluntary Contraction ◽  
Elbow Flexor ◽  
Rating Of Perceived Exertion ◽  
Men And Women ◽  
Task Failure ◽  
Rate Of Increase ◽  
Absolute Strength ◽  
Flexor Muscles ◽  
Elbow Flexor Muscles

The purpose of this study was to compare the time to task failure for a series of intermittent submaximal contractions performed with the elbow flexor muscles by men and women who were matched for strength ( n = 20, 18–34 yr). The fatigue task comprised isometric contractions at 50% of maximal voluntary contraction (MVC) torque (6-s contraction, 4-s rest). The MVC torque was similar for the men and women [64.8 ± 9.2 (SD) vs. 62.2 ± 7.9 N·m; P > 0.05]. However, the time to task failure was longer for the women (1,408 ± 1,133 vs. 513 ± 194 s; P < 0.05), despite the similar torque levels. The mean arterial pressure, heart rate, and rating of perceived exertion started and ended at similar values for the men and women, but the rate of increase was less for the women. The rate of increase in the average of the rectified electromyogram (AEMG; % peak MVC) for the elbow flexor muscles was less for the women: the AEMG was greater for the men compared with the women at task failure (72 ± 28 vs. 50 ± 21%; P < 0.05), despite similar AEMG values at the start of the fatiguing contraction (32 ± 9 vs. 36 ± 13%). These results indicate that for intermittent contractions performed with the elbow flexor muscles 1) the sex difference in time to task failure was not explained by the absolute strength of the men and women, but involved another mechanism that is present during perfused conditions, and 2) men required a more rapid increase in descending drive to maintain a similar torque.

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