Reproducibility of the blood lactate threshold, 4 mmol·l -1 marker, heart rate and ratings of perceived exertion during incremental treadmill exercise in humans

2002 ◽  
Vol 87 (2) ◽  
pp. 159-166 ◽  
Author(s):  
Grant S. ◽  
McMillan K. ◽  
Newell J. ◽  
Wood L. ◽  
Keatley S. ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Lactate Threshold ◽  
Perceived Exertion ◽  
Treadmill Exercise ◽  
Ratings Of Perceived Exertion ◽  
Exercise In Humans

scholarly journals Heart Rate, Blood Lactate Responses and Ratings of Perceived Exertion to 1,000 Punches and 1,000 Kicks in Collegiate Karate Practitioners.

1997 ◽  
Vol 16 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Hiroyuki Imamura ◽  
Yoshitaka Yoshimura ◽  
Kazuhiro Uchida ◽  
Ayumi Tanaka ◽  
Seiji Nishimura ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Perceived Exertion ◽  
Ratings Of Perceived Exertion

Ratings of Perceived Exertion, Heart Rate, and Treadmill Speed in the Prediction of Maximal Oxygen Uptake During Submaximal Treadmill Exercise

1985 ◽  
Vol 5 (11) ◽  
pp. 540
Author(s):  
Jack H. Wilmore ◽  
Fred B. Roby ◽  
Philip R. Stanforth ◽  
Michael J. Buono ◽  
Stefan H. Constable ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Perceived Exertion ◽  
Treadmill Exercise ◽  
Ratings Of Perceived Exertion ◽  
Treadmill Speed

Ratings of Perceived Exertion to Determine Intensity During Outdoor Running

1998 ◽  
Vol 23 (1) ◽  
pp. 56-65 ◽  
Author(s):  
Dixie L. Thompson ◽  
Keith A. West
Keyword(s):  
Heart Rate ◽  
Key Words ◽  
Blood Lactate ◽  
Exercise Intensity ◽  
Repeated Measures ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Borg Scale ◽  
Ratings Of Perceived Exertion ◽  
Repeated Measures Anova

A paucity of data exists related to the usefulness of Ratings of Perceived Exertion (RPE) to set exercise intensity in non-laboratory settings. The purpose of this study was to determine if RPE could be used on an outdoor track to generate blood lactate and heart rate (HR) responses similar to those obtained on a treadmill (tm) run. Nine experienced runners (6 males, 3 females; [Formula: see text]) completed a horizontal, incremental tm test. HR, RPE, and lactate were measured for each stage. Subsequently, subjects ran for 30 min on an outdoor track at the RPE corresponding with 2.5 mM lactate during the tm run. Repeated measures ANOVA compared lactate and HR values at 2.5 mM lactate on the tm run and values obtained during the track run. Lactate during the track run was significantly higher (p < .05) than 2.5 mM throughout the 30 min (6.9 ± 2.9, 63 ± 2.9, and 5.8 ± 3.0 mM at 10, 20, and 30 min, respectively). HR at 2.5 mM lactate during the tm run (173 ± 6.1 bpm) was significantly lower (p < .05) than at min 10 and 20 of the track run (182.6 ± 9.3 and 182.9 ± 8.0 bpm, respectively) but not different from min 30 (181.3 ± 10.6 bpm). In summary, it is difficult to generate specific physiological responses using RPE. Key words: RPE, Borg Scale, exercise, lactate, training

Accuracy and Reproducibility of an Exercise Prescription Based on Ratings of Perceived Exertion for Treadmill and Cycle Ergometer Exercise

1994 ◽  
Vol 78 (3_suppl) ◽  
pp. 1335-1344 ◽  
Author(s):  
Christopher C. Dunbar ◽  
Carole Goris ◽  
Donald W. Michielli ◽  
Michael I. Kalinski
Keyword(s):  
Heart Rate ◽  
Exercise Intensity ◽  
Perceived Exertion ◽  
Exercise Prescription ◽  
Treadmill Exercise ◽  
Cycle Ergometer ◽  
Ratings Of Perceived Exertion ◽  
Cycle Ergometer Exercise ◽  
Ergometer Exercise ◽  
Target Intensity

The accuracy of regularing exercise intensity by Ratings of Perceived Exertion (RPE) was examined. Subjects underwent 4 production trials, 2 on a treadmill (PIA, P1B) and 2 on a cycle ergometer (P2A, P2B). 9 untrained subjects used only their perceptions of effort to regulate exercise intensity. Target intensity was the RPE equivalent to 60% VO2mx. Exercise intensity (VO2) during P1A, P1B, and P2A did not differ from the target, but during P2B was lower than target. During P1A and P1B heart rate did not differ from the target but was lower than target during P2A and P2B. RPE seems a valid means of regulating exercise intensity during repeated bouts of treadmill exercise at 60% VO2max; however, exercise intensity during repeated bouts on the cycle ergometer may be lower than target.

Video-Assisted Cycling Alters Perception of Effort and Increases Self-Selected Exercise Intensity

1998 ◽  
Vol 86 (3) ◽  
pp. 915-927 ◽  
Author(s):  
Robert A. Robergs ◽  
Selda Bereket ◽  
Melissa A. Knight
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Perceived Exertion ◽  
Randomized Trials ◽  
Cycle Ergometer ◽  
Ratings Of Perceived Exertion ◽  
Perceived Effort ◽  
Video Assisted ◽  
Video Condition

Two studies were conducted to assess whether indoor video-assisted cycling influenced a person's quality of exercise (subjectively and quantitatively), compared to indoor cycling alone. In the first study 12 recreationally active subjects completed an initial test of VO2max, and three randomized trials of cycling at 70% VO2max (35 min.) watching a commercial cycling tape (cycle video), a test pattern displayed on the ergometer screen (blank video), or no video. Subjects' ratings of perceived exertion (RPE) and Affect were recorded, and heart rate and oxygen consumption (VO2) were measured during testing. The second study required 12 different subjects first to complete an assessment of VO2max and then two randomized trials (cycle video and no video) on a cycle ergometer where they freely set the intensity of their own exercise. Measurements of VO2, heart rate, blood lactate, power output, RPE, and Affect were recorded during testing. Results of Exp. 1 indicated that subjects' perceived effort equally between the two conditions, yet reported significantly ( p <.05) higher affect at 25 and 35 min. of cycling during the cycle video condition than no video condition. Results of Exp. 2 indicated that despite similar levels of blood lactate, subjects exercised at a significantly higher intensity during the cycle video condition compared to no video condition, with a higher VO2 and heart rate. The data support the use of indoor exercise videos to improve the exercise experience and also to increase the physiological demands of indoor exercise.

Ratings of Perceived Exertion, Heart Rate, and Treadmill Speed in the Prediction of Maximal Oxygen Uptake During Submaximal Treadmill Exercise

1985 ◽  
Vol 5 (11) ◽  
pp. 540-546 ◽  
Author(s):  
Jack H. Wilmore ◽  
Fred B. Roby ◽  
Philip R. Stanforth ◽  
Michael J. Buono ◽  
Stefan H. Constable ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Perceived Exertion ◽  
Treadmill Exercise ◽  
Ratings Of Perceived Exertion ◽  
Treadmill Speed

Four Days of Blueberry Powder Supplementation Lowers the Blood Lactate Response to Running But Has No Effect on Time-Trial Performance

2019 ◽  
Vol 29 (6) ◽  
pp. 636-642 ◽  
Author(s):  
Jason P. Brandenburg ◽  
Luisa V. Giles
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Perceived Exertion ◽  
Physiological Stress ◽  
Vertical Jump ◽  
Lactate Production ◽  
Time Trial ◽  
Strength Index ◽  
Ratings Of Perceived Exertion ◽  
Blueberry Supplementation

Blueberries are abundant with anthocyanins possessing antioxidant and anti-inflammatory properties. As these properties combat fatigue and promote recovery, blueberry supplementation may enhance performance and recovery. Thus, the objectives were to examine the effects of two blueberry supplementation protocols on running performance, physiological responses, and short-term recovery. Using a randomized, double-blind, placebo (PLA)-controlled crossover design, 14 runners completed an 8-km time trial (TT) after supplementation with 4 days of blueberries (4DAY), 4 days of a PLA, or 2 days of placebo followed by 2 days of blueberries (2DAY). Heart rate and ratings of perceived exertion were monitored during the TT. Blood lactate, vertical jump, reactive strength index, and salivary markers were assessed before and after. No significant differences were observed for time to complete the TT (PLA: 3,010 ± 459 s; 2DAY: 3,014 ± 488 s; 4DAY: 3,011 ± 423 s), heart rate, ratings of perceived exertion, or any of the salivary markers. An interaction effect (p = .027) was observed for blood lactate, with lower post-TT concentrations in 4DAY (5.4 ± 2.0 mmol/L) than PLA (6.6 ± 2.5 mmol/L; p = .038) and 2DAY (7.4 ± 3.4 mmol/L; p = .034). Post-TT decreases in vertical jump height were not different, whereas the decline in reactive strength index was less following 4DAY (−6.1% ± 13.5%) than the other conditions (PLA: −12.6% ± 10.1%; 2DAY: −11.6% ± 11.5%; p = .038). Two days of supplementation did not influence performance or physiological stress. Although 4 days of supplementation did not alter performance, it blunted the increase in blood lactate, perhaps reflecting altered lactate production and/or clearance, and offset the decrease in dynamic muscle function post-TT, as indicated by the reactive strength index differences.

Ratings of Perceived Exertion, Heart Rate, and Treadmill Speed in the Prediction of Maximal Oxygen Uptake During Submaximal Treadmill Exercise

1985 ◽  
Vol 5 (11) ◽  
pp. 540???545
Author(s):  
Jack H. Wilmore ◽  
Fred B. Roby ◽  
Philip R. Stanforth ◽  
Michael J. Buono ◽  
Stefan H. Constable ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Perceived Exertion ◽  
Treadmill Exercise ◽  
Ratings Of Perceived Exertion ◽  
Treadmill Speed
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