scholarly journals Attentional Style and Pace Monitoring on Rate of Perceived Exertion and Run Performance

2021 ◽  
Vol 7 (4) ◽  
pp. 41-48
Author(s):  
Todd Christensen ◽  
Frances Cacho ◽  
Timothy Baghurst
Keyword(s):  
Completion Time ◽  
Perceived Exertion ◽  
Time Trial ◽  
Human Locomotion ◽  
Attentional Focus ◽  
Interpersonal Style ◽  
Rate Of Perceived Exertion ◽  
Significant Difference ◽  
Tracking Devices ◽  
Practical Implications

Run-tracking devices are used by athletes and exercisers to monitor various metrics of human locomotion such as pace and distance. This study sought to determine the effects of pace monitoring on run performance and rate of perceived exertion (RPE). Participants were 41 (17 male, 24 female) recreationally fit runners, age 19-40 years (M = 22.4, SD = 4.4), who completed the Test of Attentional and Interpersonal Style (TAIS) to determine individual attentional focus. They then completed an associative condition (AC) 1-mile time trial and a dissociative condition (DC) 1-mile time trial 24-36 hours apart. Individual, independent t-tests compared completion time means between conditions. The internalizers group (AC) performed significantly faster in the associative condition (M = 496.10, SD = 105.05 seconds) than in the dissociative condition (M = 525.00, SD = 109.67 seconds), t(20) = 5.79, p < .001. The externalizers group (DC) performed significantly faster in the dissociative condition (M = 522.70, SD = 97.37 seconds) than in the associative condition (M = 556.90, SD = 116.62), t(19) = -4.92, p < .001. Results support the value of identifying an individual’s preferred attentional focus to place them in the optimal environment for success. While the study showed no significant difference in RPE scores between conditions, there may be practical implications of similar RPE scores when accompanied by significant changes in performance.

Predicting Lactate Threshold With Rate of Perceived Exertion in Young Competitive Male Swimmers

2021 ◽  
pp. 003151252110052
Author(s):  
Jhonny K. F. da Silva ◽  
Bruna B. Sotomaior ◽  
Carolina F. Carneiro ◽  
Patrick Rodrigues ◽  
Lee Wharton ◽  
...  
Keyword(s):  
Lactate Threshold ◽  
Perceived Exertion ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Test Protocol ◽  
Male Athletes ◽  
Rate Of Perceived Exertion ◽  
Significant Difference ◽  
Maximal Deviation ◽  
Competitive Swimmers

The purpose of this study was to verify the effectiveness of the rate of perceived exertion threshold (RPET) for predicting young competitive swimmers’ lactate threshold (LT) during incremental testing. We enrolled 13 male athletes ( M age = 16, SD = 0.6 years) in an incremental test protocol consisting of eight repetitions of a 100-meter crawl with 2-minute intervals between each repetition. We collected data for blood lactate concentration ([La]) and Borg scale rate of perceived exertion (RPE) at the end of each repetition. The results obtained were: M RPET = 4.98, SD = 1.12 arbitrary units (A.U.) and M lactate threshold = 4.24, SD = 1.12 mmol.L−1, with [La] and RPE identified by the maximal deviation (Dmax) method without a significant difference ( p > 0.05) and large correlations between DmaxLa and DmaxRPE at variables for time (r = 0.64), velocity (r = 0.67) and percentage of personal best time (PB) (r = 0.60). These results suggest that RPET is a good predictor of LT in young competitive swimmers.

Influence of acetaminophen on performance during time trial cycling

2010 ◽  
Vol 108 (1) ◽  
pp. 98-104 ◽  
Author(s):  
Alexis R. Mauger ◽  
Andrew M. Jones ◽  
Craig A. Williams
Keyword(s):  
Perceived Exertion ◽  
Pain Perception ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Time Trial ◽  
Pain Tolerance ◽  
Rating Of Perceived Exertion ◽  
Significant Difference ◽  
Perceived Pain ◽  
Condition B

To establish whether acetaminophen improves performance of self-paced exercise through the reduction of perceived pain, 13 trained male cyclists performed a self-paced 10-mile (16.1 km) cycle time trial (TT) following the ingestion of either acetaminophen (ACT) or a placebo (PLA), administered in randomized double-blind design. TT were completed in a significantly faster time ( t12 = 2.55, P < 0.05) under the ACT condition (26 min 15 s ± 1 min 36 s vs. 26 min 45 s ± 2 min 2 s). Power output (PO) was higher during the middle section of the TT in the ACT condition, resulting in a higher mean PO ( P < 0.05) (265 ± 12 vs. 255 ± 15 W). Blood lactate concentration (B[La]) and heart rate (HR) were higher in the ACT condition (B[La] = 6.1 ± 2.9 mmol/l; HR = 87 ± 7%max) than in the PLA condition (B[La] = 5.1 ± 2.6 mmol/l; HR = 84 ± 9%max) ( P < 0.05). No significant difference in rating of perceived exertion (ACT = 15.5 ± 0.2; PLA = 15.7 ± 0.2) or perceived pain (ACT = 5.6 ± 0.2; PLA = 5.5 ± 0.2) ( P > 0.05) was observed. Using acetaminophen, participants cycled at a higher mean PO, with an increased HR and B[La], but without changes in perceived pain or exertion. Consequently, completion time was significantly faster. These findings support the notion that exercise is regulated by pain perception, and increased pain tolerance can improve exercise capacity.

scholarly journals Gastrointestinal Symptoms Related to Potato Ingestion During Cycling in Trained Athletes (P23-012-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Susannah Scaroni ◽  
Amadeo Salvador ◽  
Colleen McKenna ◽  
Rafael Alamilla ◽  
Isabel Martinez ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Mixed Model ◽  
Gastrointestinal Symptoms ◽  
Time Trial ◽  
Endurance Performance ◽  
Rating Of Perceived Exertion ◽  
Random Factor ◽  
Mixed Model Analysis ◽  
Gi Symptoms ◽  
Significant Difference

Abstract Objectives Carbohydrate (CHO) ingestion is an established nutritional strategy to improve endurance performance, yet currently available products may contribute to gastrointestinal (GI) distress. Potatoes have a high-glycemic index, indicating that their CHO content is readily available. We aimed to compare the effects of ingesting potato purée (POT), commercial CHO gel (GEL), or a control (water, CTL) during cycling on GI Symptoms and affective indices in trained athletes. Methods In a randomized crossover study, twelve trained cyclists (9 M and 3F; 30.5 ± 8.7y; 70.6 ± 7.6 kg; 1.70 ± 7 cm; 60.7 ± 8.9 mL/kg/min) completed a 2 h cycling challenge (60–85%VO2max) followed by a 6 kJ/kg time trial. Cyclists were randomly assigned to consume POT, GEL, or CTL during the challenge. Rating of perceived exertion (RPE), GI symptoms, and affective responses (Feeling Scale −5/+5) were collected throughout the challenge via visual analog scales. Differences between treatments were assessed by mixed model analysis of variance using time and condition as a fixed factor and subject as a random factor. All data represent mean ± standard deviation. Results RPE was not different between POT, GEL, or CTL condition at the end of the cycling challenge (POT: 17 ± 1; GEL: 17 ± 1, CTL: 18 ± 1, P > 0.05). Higher GI symptoms (P < 0.01) were observed at the end of the challenge during POT condition (15 ± 3%) when compared to GEL (8 ± 3%) and CTL (7 ± 3%), with no significant difference in these symptoms prior to this time. FS response significantly increased (P = 0.04) during POT trial (2 ± 2) compared to GEL (0 ± 0.2) and CTL (0 ± 2) conditions at end of the challenge. Conclusions While POT ingestion resulted in greater GI distressed compared to CHO gel, cyclists perceived the exertion to be similar and even reported feeling more pleasant after POT ingestion in endurance exercise. Funding Sources Alliance for Potato Research and Education.

Acute Capsaicin Supplementation Improves 1,500-m Running Time-Trial Performance and Rate of Perceived Exertion in Physically Active Adults

2018 ◽  
Vol 32 (2) ◽  
pp. 572-577 ◽  
Author(s):  
Marcelo Conrado de Freitas ◽  
Jason M. Cholewa ◽  
Luis A. Gobbo ◽  
João V.N.S. de Oliveira ◽  
Fabio S. Lira ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Time Trial ◽  
Physically Active ◽  
Running Time ◽  
Time Trial Performance ◽  
Rate Of Perceived Exertion ◽  
Active Adults ◽  
Trial Performance

scholarly journals The effects of dietary nitrate supplementation on endurance exercise performance and cardiorespiratory measures in healthy adults: a systematic review and meta-analysis

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Chloe Gao ◽  
Saurabh Gupta ◽  
Taranah Adli ◽  
Winston Hou ◽  
Reid Coolsaet ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Time Trial ◽  
Cochrane Collaboration ◽  
Performance Measure ◽  
Time To Exhaustion ◽  
Cochrane Central Register ◽  
Endurance Sports ◽  
Dietary Nitrate ◽  
Significant Difference ◽  
Nitrate Supplementation

Abstract Background Nitrate supplementation is thought to improve performance in endurance sports. Objective To meta-analyze studies evaluating the effect of nitrate supplementation on endurance sports performance among adults. Data sources We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, Web of Science and CINAHL without language restrictions. Methods We included studies that: 1) compared nitrate supplementation with placebo; 2) enrolled adults engaging in an endurance-based activity; and 3) reported a performance measure or surrogate physiologic outcome. We evaluated risk of bias using the Cochrane Collaboration tool and pooled data with a random-effects model. We used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to evaluate confidence in estimates. Results We included 73 studies (n = 1061). Nitrate supplementation improved power output (MD 4.6 watts, P < 0.0001), time to exhaustion (MD 25.3 s, P < 0.00001), and distance travelled (MD 163.7 m, P = 0.03). We found no significant difference on perceived exertion, time trial performance and work done. Nitrate supplementation decreased VO2 (MD − 0.04 L/min, P < 0.00001) but had no significant effect on VO2max or blood lactate levels. Conclusion The available evidence suggests that dietary nitrate supplementation benefits performance-related outcomes for endurance sports.

Compression Garments: No Enhancement of High-Intensity Exercise in Hot Radiant Conditions

2013 ◽  
Vol 8 (5) ◽  
pp. 527-535 ◽  
Author(s):  
Martin J. Barwood ◽  
Jo Corbett ◽  
John Feeney ◽  
Paul Hannaford ◽  
Dan Henderson ◽  
...  
Keyword(s):  
Heat Load ◽  
Completion Time ◽  
Perceived Exertion ◽  
Thermal Sensation ◽  
Time Trial ◽  
Radiant Heat ◽  
Rating Of Perceived Exertion ◽  
Compression Garment ◽  
Mean Body Temperature ◽  
Hot Environment

Purpose:To establish the thermal and performance effects of wearing a lower-body graduated compression garment (GCG) in a hot environment (35.2°C ± 0.1°C) with a representative radiant heat load (~800 W/m2) in contrast to a control (running shorts) and sham condition (a compression garment 1 size larger than that recommended by the manufacturer), with the latter included to establish any placebo effect.Method:Eight participants (mean ± SD; age 21 ± 2 y, height 1.77 ± 0.06 m, mass 72.8 ± 7.1 kg, surface area, 1.89 ± 0.10 m2) completed 3 treadmill tests at a fixed speed for 15 min followed by a self-paced 5-km time trial. Performance (completion time) and pacing (split time), thermal responses (aural, skin, and mean body temperature, cardiac frequency), and perceptual responses (rating of perceived exertion [RPE], thermal sensation, thermal comfort) were measured.Results:Performance in the compression group was not different than in either sham or control at any stage (P > .05); completion time 26.08 ± 4.08, 26.05 ± 3.27, and 25.18 ± 3.15 min, respectively. At the end of the 5-km time trial, RPE was not different; it was 19 ± 1 across conditions. In general, thermal and perceptual responses were not different, although the radiant heat load increased site-specific skin temperature (quadriceps) in the garment conditions.Conclusion:GCG did not enhance performance in a hot environment with a representative radiant heat load. The sham treatment did not benefit perception. GCG provided no evidence of performance enhancement.

Manual Handling in Nursing Jobs: An Ergonomic Study of a Patient Transferring Aid

2000 ◽  
Vol 44 (30) ◽  
pp. 5-610-5-610
Author(s):  
K. Kothiyal ◽  
T. W. Yuen
Keyword(s):  
Perceived Exertion ◽  
Muscular Activity ◽  
Patient Handling ◽  
Lower Back ◽  
Rate Of Perceived Exertion ◽  
Significant Difference ◽  
Manual Handling

This study presents the results of an ergonomics evaluation of a patient handling aid commonly used for transferring patients. The results of the study showed that use of the patient handling aid (Medesign) increased the rate of perceived exertion at the lower back and the shoulder but did not indicate any significant difference in the muscular activity in the regions. It is suggested that users' anthropometry should be considered in designing a patient handling aid.

scholarly journals Influence of Altitude and Environmental Temperature on Muscle Functional and Mechanical Activation After 30' Time Trial Run

2019 ◽  
Vol 17 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Daniel Rojas-Valverde ◽  
Jose Alexis Ugalde Ramírez ◽  
Braulio Sánchez-Ureña ◽  
Randall Gutiérrez-Vargas
Keyword(s):  
Perceived Exertion ◽  
Environmental Temperature ◽  
Time Trial ◽  
Biceps Femoris ◽  
Functional Responses ◽  
Thermal Index ◽  
Significant Difference ◽  
And Performance ◽  
High Condition ◽  
Radial Muscle

The purpose of this study was to explore the influence of altitude and environmental temperature on muscle mechanical and functional activation after 30' Time Trial run (30' TT). Twenty physical active males (Age= 20.4 ±3.21 years, VO2max= 47.2 ±5.2 ml/kg/min) performed a 30' TT in three different conditions of altitude and temperature: Control Condition [CC] (1137 m.a.s.l. at 26 ±1.5°C), Heat-Low Condition [HLC] (3 m.a.s.l. at 30.5 ±0.6°C), and Cool-High Condition [CHC] (2369 m.a.s.l. at 14.2 ±0.6°C). Tensiomyography (TMG), Countermovement Jump (CMJ), and Delayed Onset Muscle Soreness (DOMS) were measured pre and post running. During the 30' TT, distance, speed, heart rate (HR), rate of perceived exertion (RPE), and thermal index (WBGT) were measured. Results show a significant decrease in body weight and a significant increase in DOMS and jump height in CMJ after running in each condition. TMG responses increased maximum radial muscle displacement (Dm) and decreased muscle contraction time (Tc) both rectus and biceps femoris muscles after running. During the 30' TT, the results did not show a significant difference in RPE, HR, distance, and speed among conditions. In conclusion, altitude and temperature seem not to significantly affect the mechanical and functional responses 30' TT, despite the tendency of HLC to decrease both activation and performance.

scholarly journals Effects of Acacia Honey Drink after Exercise-Induced Dehydration on Selected Physiological Parameters and Subsequent Running Performance

2021 ◽  
Vol 50 (8) ◽  
pp. 2293-2308
Author(s):  
Aidi-Naim Mohamad Samsani ◽  
Kiew Ooi Foong ◽  
Chee Keong Chen ◽  
Mohamed Saat Ismail
Keyword(s):  
Body Weight ◽  
Perceived Exertion ◽  
Time Trial ◽  
Tympanic Temperature ◽  
Plain Water ◽  
Weight Changes ◽  
Running Performance ◽  
Sports Drink ◽  
Significant Difference ◽  
Acacia Honey

This study examined the effect of honey supplementation on exercise performance and biochemical markers in comparison to plain water and sports drink in the heat. Ten recreational athletes (Age: 22.2 ± 2.0 years, weight: 65.7 ± 5.3 kg; height: 170.4 ± 3.5 cm; VO2max: 51.5 ± 3.7 mL.kg−1.min−1) participated in this study. Participants ran at 70% of their VO2max for 1 h in a pre-load phase (Run-1), followed by a rehydration phase for 2 h and then a 20 min self-paced time trial (Run-2). After Run-1, participants drank either Acacia honey, sports drink or plain water with an amount equivalent to 150% of body weight loss. Subsequently, the participants performed the 20 min self-paced time trial. Acacia honey elicited an improved running time trial performance with a significantly (p<0.05) longer distance ran compared to plain water trial, but it was not different from the sports drink trial. In addition, there was no significant difference in running performance between sports drink and plain water trials. Plasma glucose, insulin and free fatty acids were significantly (p<0.05) higher in H and sports drink compared to the W trial during the rehydration phase. There were no significant differences in body weight changes, oxygen uptake, heart rate, rate of perceived exertion, tympanic temperature, plasma volume changes, plasma cortisol, urine osmolality, volume, and specific gravity among the three trials. Thus, Acacia honey can be recommended to be used as a rehydration drink for individuals who train and compete in the heat.

scholarly journals Music Augmented With Isochronic Auditory Beats or Vibrotactile Stimulation Does Not Affect Subsequent Ergometer Cycling Performance: A Pilot Study

2021 ◽  
Vol 15 ◽  
Author(s):  
Adam Fry ◽  
Stephen Braren ◽  
Nicholas Pitaro ◽  
Brandon Larson ◽  
David Putrino
Keyword(s):  
Pilot Study ◽  
Power Output ◽  
Perceived Exertion ◽  
Time Trial ◽  
Cycling Performance ◽  
Vibrotactile Stimulation ◽  
Rate Of Perceived Exertion ◽  
Main Effect ◽  
Ergogenic Effects ◽  
Ergometer Cycling

Methods to enhance the ergogenic effects of music are of interest to athletes of all abilities. The aim of this pilot study was to investigate the ergogenic effects of two commercially available methods of music augmentation: auditory beats and vibrotactile stimulation. Six male and five female cyclists/triathletes cycled for 7 minutes at three different intensities: a rate of perceived exertion (RPE) of 11 (“light”), RPE of 15 (“hard”), and a 7-minute time-trial. Before each 7-minute bout of cycling, participants listened to 10 minutes of self-selected music (MUS), or the same music with the addition of either isochronic auditory beats (ABS) or vibrotactile stimulation via SUBPACTM (VIB). MUS, ABS and VIB trials were performed in a randomized order. Power output was measured during cycling and felt arousal and feeling scores were recorded at timepoints throughout the protocol. The results found the augmented MUS interventions did not influence power output with no significant main effect of trial (p = 0.44, η2 = 0.09) or trial × cycling intensity interaction (p = 0.11, η2 = 0.20). Similarly, both felt arousal and feeling scores were unchanged between the MUS, ABS, and VIB trials (p &gt; 0.05). In conclusion, this pilot study indicated an ineffectiveness of the ABS and VIB to affect subsequent 7-min cycling performance compared to self-selected MUS alone.

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