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The Self-Paced Submaximal Run Test: Associations With the Graded Exercise Test and Reliability

Hannah F. Sangan, James G. Hopker, Glen Davison, and Shaun J. McLaren

). 2 Although these parameters (VO 2 max, lactate threshold, and running economy) are often analyzed using a treadmill-based graded exercise test (GXT) to assess the construct of aerobic fitness in runners, 2 – 4 their analysis for the purpose of monitoring acute within-individual responses to

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Development of an On-Water Graded Exercise Test for Flat-Water Sprint Kayak Athletes

Chelsie E. Winchcombe, Martyn J. Binnie, Matthew M. Doyle, Cruz Hogan, and Peter Peeling

monitoring of the training program. 4 Current best practice physiological testing of flat-water sprint kayak athletes in Australia involves the completion of a laboratory-based graded exercise test (GXT) conducted on a stationary kayak ergometer. 4 This test involves 5 to 6 submaximal efforts, each of 4

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Patterning of Affective Responses During a Graded Exercise Test in Children and Adolescents

Charlotte C. Benjamin, Alex Rowlands, and Gaynor Parfitt

Past studies have shown the patterning of affective responses during a graded exercise test (GXT) in adult and male adolescent populations, but none have explored the patterns in adolescent girls or younger children. This study explored the patterning of affective responses during a GXT in adolescents and younger children. Forty-nine children (21 male and 28 female) aged between 8–14 years (10.8 ± 1.8 years) completed a GXT. Ventilatory threshold (VT) was identified. At the end of each incremental step, participants reported affective valence. Results revealed that affective valence assessed by the Feeling Scale (FS) significantly declined from the onset of exercise until the point of VT in the younger children, but remained relatively stable in the adolescents. Exercise above the VT brought about significant declines in affective valence regardless of age or sex, but the decrease was significantly greater in adolescents. Results suggest it may be preferable to prescribe lower exercise intensities (below VT) for children, compared with adolescents, to ensure a positive affective response.

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Reliability and Validity of Tethered Swimming Lactate Minimum Test and Their Relationship With Performance in Young Swimmers

Carlos Augusto Kalva-Filho, Argyris Toubekis, Alessandro Moura Zagatto, Adelino Sanchez Ramos da Silva, João Paulo Loures, Eduardo Zapaterra Campos, and Marcelo Papoti

training routine ( 8 , 29 ). In this context, the anaerobic threshold can be estimated using a graded exercise test, where the intensity related to the substantial increase in [La − ] can be determined, being called lactate threshold (LT) intensity ( 29 ). Previous studies have demonstrated that LT

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Critical Speed as a Measure of Aerobic Fitness for Male Rugby Union Players

Mark Kramer, Mark Watson, Rosa Du Randt, and Robert W. Pettitt

over a 3-week period. Anthropometric measurements were taken (height and weight), as well as undergoing several familiarization bouts for the various tests during the initial session. On the second visit, participants performed a graded exercise test (GXT) with a verification bout to validate whether a

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In the Zone: An Exploration of Personal Characteristics Underlying Affective Responses to Heavy Exercise

Leighton Jones, Jasmin C. Hutchinson, and Elizabeth M. Mullin

and Future Research Affective responses were recorded during a graded exercise test to account for the entire range of exercise intensities and to anchor responses around relevant respiratory markers. This laboratory-based exercise test is not representative of a typical exercise session or setting

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Astaxanthin Supplementation Increases Glutathione Concentrations but Does Not Impact Fat Oxidation During Exercise in Active Young Men

Matthew J. McAllister, Joni A. Mettler, Kyle Patek, Matthew Butawan, and Richard J. Bloomer

placebo, with each supplementation period lasting 4 weeks. After the end of each 4-week supplementation period, a fasting blood sample was collected and participants completed a graded exercise test (GXT) to determine rates of fat and carbohydrate oxidation. After the testing sessions, participants

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Effect of Stimulant Medication Use by Children With ADHD on Heart Rate and Perceived Exertion

Anthony D. Mahon, Megan E. Woodruff, Mary P. Horn, Andrea D. Marjerrison, and Andrew S. Cole

The effect of stimulant medication use by children with attention deficit/hyper-activity disorder (ADHD) on the rating of perceived exertion (RPE)—heart rate (HR) relationship was examined. Children with ADHD (n = 20; 11.3 ± 1.8 yrs) and children without ADHD (n = 25; 11.2 ± 2.1 yrs) were studied. Children with ADHD were examined while on their usual dose of medication on the day of study. HR and RPE, using the OMNI RPE scale, were assessed during a graded exercise to peak voluntary effort. The RPE-HR relationship was determined individually and the intercept and slope responses were compared between groups. The intercept was 132.4 ± 19.5 bpm for children with ADHD and 120.6 ± 15.7 bpm for children without ADHD. The slope was 7.3 ± 1.9 bpm/RPE for the children with ADHD and 8.1 ± 1.6 bpm/RPE for the children without ADHD. For the group with ADHD the intercept and slope values fell outside of the 95% CI observed in the control group. The altered relationship between RPE and HR with stimulant medication use in children with ADHD has practical implications with respect to the use of HR and RPE to monitor exercise intensity.

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Reproducibility of the Rotor 2INpower Crankset for Monitoring Cycling Power Output: A Comprehensive Analysis in Different Real-Context Situations

Víctor Rodríguez-Rielves, Alejandro Martínez-Cava, Ángel Buendía-Romero, José Ramón Lillo-Beviá, Javier Courel-Ibáñez, Alejandro Hernández-Belmonte, and Jesús G. Pallarés

, SEM expressed as coefficient of variation; GXT, graded exercise test; PO, power output; SEM, standard error of measurement. Figure 1 —Bland–Altman plots showing the level of agreement between units 1 (black circles), 2 (gray circles), and 3 (white circles) of the Rotor 2INpower and the gold

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Does the Achilles Tendon Influence Foot Strike Patterns During an Exhaustive Run?

Jan Urbaczka, Dominik Vilimek, and Daniel Jandacka

2 max, mL·kg −1 ·min −1 55.7 5.1 50.8 6.0 .041* 0.886 VT 2 −5% velocity, m/s 4.2 0.6 3.3 0.4 <.001* 1.970 BMI 21.1 1.5 23.5 3.0 .010* −1.053 GXT duration, min 17.6 3.3 13.7 3.1 .001* 1.243 Abbreviations: BMI, body mass index; GXT, graded exercise test; HT, highly trained group; MT, moderately