Critical skating intensity on a slide board: physiological and neuromuscular responses and correlation with performance on ice

2020 ◽  
Vol 45 (1) ◽  
pp. 61-66
Author(s):  
Tatiane Piucco ◽  
Julia Phillips ◽  
Jordan Finnie ◽  
Andrew Rados ◽  
Ricardo Dantas de Lucas
Keyword(s):  
Oxygen Uptake ◽  
Perceived Exertion ◽  
Vastus Lateralis ◽  
Gluteus Maximus ◽  
Peak Oxygen Uptake ◽  
Time To Exhaustion ◽  
Ratings Of Perceived Exertion ◽  
Incremental Test ◽  
Neuromuscular Responses ◽  
And Training

The aim of this study was to assess the physiological and neuromuscular responses at critical skating intensity on a slide board and to investigate the correlations between critical cadence (CC) and skating performances on ice. Thirteen well-trained speed skaters (age,19.8 ± 4.2 years; weight, 69.6 ± 9.06 kg) performed a maximal skating incremental test (IT) on a slide board. CC was determined from 3 to 4 trials to exhaustion lasting from 3.1 ± 0.7 to 13.9 ± 3.1 min, using linear and hyperbolic mathematical fittings. A time to exhaustion test at CC (TTE-CC) was performed. CC values (55.3 ± 5.0 ppm) were significantly higher than cadence at the respiratory compensation point (RCP) (53.5 ± 4.0 ppm). Mean duration of TTE-CC was 22.9 ± 4.8 min. Peak values of oxygen uptake, heart rate (HR), ventilation, respiratory exchange ratio (RER), and ratings of perceived exertion (RPE) during TTE-CC were significantly lower (p < 0.05) than the peak values reached during the IT. Oxygen uptake, HR, ventilation, RER, and RPE significantly increased from 25% to 100% of TTE-CC. Muscle activity (integrated electromyography) significantly increased after 75% of TTE-CC for vastus lateralis and gluteus maximus muscles. Oxygen uptake at CC was better associated to skating performance on 500, 1000, 1500, and 5000 m than peak oxygen uptake at IT and oxygen uptake at RCP. Physiological responses indicate that critical skating intensity on slide board occurred within the heavy exercise domain where oxygen uptake increases but does not reach its maximum. Critical cadence could be used as a better indicator of performance and training prescription for long track speed skating distances.

scholarly journals Physiological responses and cycle characteristics during double-poling versus diagonal-stride roller-skiing in junior cross-country skiers

2021 ◽  
Author(s):  
Erik P. Andersson ◽  
Irina Hämberg ◽  
Paulo Cesar Do Nascimento Salvador ◽  
Kerry McGawley
Keyword(s):  
Oxygen Uptake ◽  
Perceived Exertion ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Peak Oxygen Uptake ◽  
Submaximal Exercise ◽  
Rating Of Perceived Exertion ◽  
Time To Exhaustion ◽  
Double Poling ◽  
Cross Country

Abstract Purpose This study aimed to compare physiological factors and cycle characteristics during cross-country (XC) roller-skiing at matched inclines and speeds using the double-poling (DP) and diagonal-stride (DS) sub-techniques in junior female and male XC skiers. Methods Twenty-three well-trained junior XC skiers (11 women, 12 men; age 18.2 ± 1.2 yr.) completed two treadmill roller-skiing tests in a randomized order using either DP or DS. The exercise protocols were identical and included a 5 min warm-up, 4 × 5 min submaximal stages, and an incremental test to exhaustion, all performed at a 5° incline. Results No significant three-way interactions were observed between sex, submaximal exercise intensity, and sub-technique. For the pooled sample, higher values were observed for DP versus DS during submaximal exercise for the mean oxygen uptake kinetics response time (33%), energy cost (18%), heart rate (HR) (9%), blood lactate concentration (5.1 versus 2.1 mmol·L−1), rating of perceived exertion (12%), and cycle rate (25%), while cycle length was lower (19%) (all P < 0.001). During the time-to-exhaustion (TTE) test, peak oxygen uptake ($$\dot{V}$$ V ˙ O2peak), peak HR, and peak oxygen pulse were 8%, 2%, and 6% lower, respectively, for DP than DS, with a 29% shorter TTE during DP (pooled data, all P < 0.001). Conclusion In well-trained junior XC skiers, DP was found to exert a greater physiological load than DS during uphill XC roller-skiing at submaximal intensities. During the TTE test, both female and male athletes were able to ski for longer and reached markedly higher $$\dot{V}$$ V ˙ O2peak values when using DS compared to DP.

Prediction of peak oxygen uptake from sub-maximal ratings of perceived exertion elicited during a graded exercise test in obese women

2009 ◽  
Vol 46 (6) ◽  
pp. 1150-1153 ◽  
Author(s):  
Jeremy B. J. Coquart ◽  
Christine Lemaire ◽  
Alain-Eric Dubart ◽  
Claire Douillard ◽  
David-Pol Luttenbacher ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Exercise Test ◽  
Perceived Exertion ◽  
Peak Oxygen Uptake ◽  
Obese Women ◽  
Ratings Of Perceived Exertion ◽  
Graded Exercise Test ◽  
Graded Exercise

Prediction of Maximal or Peak Oxygen Uptake from Ratings of Perceived Exertion

2014 ◽  
Vol 44 (5) ◽  
pp. 563-578 ◽  
Author(s):  
Jérémy B. Coquart ◽  
Murielle Garcin ◽  
Gaynor Parfitt ◽  
Claire Tourny-Chollet ◽  
Roger G. Eston
Keyword(s):  
Oxygen Uptake ◽  
Perceived Exertion ◽  
Peak Oxygen Uptake ◽  
Ratings Of Perceived Exertion

scholarly journals Incremental and decremental cardiopulmonary exercise testing protocols produce similar maximum oxygen uptake in athletes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nuno Manuel Frade de Sousa ◽  
Danilo Rodrigues Bertucci ◽  
Gabriel Medeiros de Sant’Ana ◽  
Pedro Luiz Ribeiro Angelucci Padua ◽  
Diogo Mello da Rosa
Keyword(s):  
Oxygen Uptake ◽  
Perceived Exertion ◽  
Cardiopulmonary Exercise Testing ◽  
Carbon Dioxide Production ◽  
Average Difference ◽  
Ratings Of Perceived Exertion ◽  
Incremental Test ◽  
Typical Error ◽  
Trained Runners ◽  
Testing Protocols

AbstractThe aim of the study was to evaluate and compare the maximal oxygen uptake ($$\dot{\mathrm{V}}$$ V ˙ O2max) achieved during incremental and decremental protocols in highly trained athletes. Nineteen moderate trained runners and rowers completed, on separate days, (i) an initial incremental $$\dot{\mathrm{V}}$$ V ˙ O2max test (INC) on a treadmill, followed by a verification phase (VER); (ii) a familiarization of a decremental test (DEC); (iii) a tailored DEC; (iv) a test with decremental and incremental phases (DEC-INC); (v) and a repeated incremental test (INCF). During each test $$\dot{\mathrm{V}}$$ V ˙ O2, carbon dioxide production, ventilation, heart and breath rates and ratings of perceived exertion were measured. No differences were observed in $$\dot{\mathrm{V}}$$ V ˙ O2max between INC (61.3 ± 5.2 ml kg−1 min−1) and DEC (61.1 ± 5.1 ml kg−1 min−1; average difference of ~ 11.58 ml min−1; p = 0.831), between INC and DEC-INC (60.9 ± 5.3 ml kg−1 min−1; average difference of ~ 4.8 ml min−1; p = 0.942) or between INC and INCF (60.7 ± 4.4 ml kg−1 min−1; p = 0.394). $$\dot{\mathrm{V}}$$ V ˙ O2max during VER (59.8 ± 5.1 ml kg−1 min−1) was 1.50 ± 2.20 ml kg−1 min−1 lower (~ 2.45%; p = 0.008) compared with values measured during INC. The typical error in the test-to-test changes for evaluating $$\dot{\mathrm{V}}$$ V ˙ O2max over the five tests was 2.4 ml kg−1 min−1 (95% CI 1.4–3.4 ml kg−1 min−1). Decremental tests do not elicit higher $$\dot{\mathrm{V}}$$ V ˙ O2max than incremental tests in trained runners and rowers, suggesting that a plateau in $$\dot{\mathrm{V}}$$ V ˙ O2 during the classic incremental and verification tests represents the maximum ceiling of aerobic power.

Muscle Oxygenation Asymmetry in Ice Speed Skaters: Not Compensated by Compression

2014 ◽  
Vol 9 (1) ◽  
pp. 58-67 ◽  
Author(s):  
Dennis-Peter Born ◽  
Christoph Zinner ◽  
Britta Herlitz ◽  
Katharina Richter ◽  
Hans-Christer Holmberg ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Blood Volume ◽  
Effect Size ◽  
Perceived Exertion ◽  
Tissue Oxygenation ◽  
Vastus Lateralis ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Ratings Of Perceived Exertion

Purpose:The current investigation assessed tissue oxygenation and local blood volume in both vastus lateralis muscles during 3000-m race simulations in elite speed skaters on ice and the effects of leg compression on physiological, perceptual, and performance measures.Methods:Ten (6 female) elite ice speed skaters completed 2 on-ice trials with and without leg compression. Tissue oxygenation and local blood volume in both vastus lateralis muscles were assessed with near-infrared spectroscopy. Continuous measures of oxygen uptake, ventilation, heart rate, and velocity were conducted throughout the race simulations, as well as blood lactate concentration and ratings of perceived exertion before and after the trials. In addition, lap times were assessed.Results:The investigation of tissue oxygenation in both vastus lateralis muscles revealed an asymmetry (P < .00; effect size = 1.81) throughout the 3000-m race simulation. The application of leg compression did not affect oxygenation asymmetry (smallest P = .99; largest effect size = 0.31) or local blood volume (P = .33; 0.95). Lap times (P = .88; 0.43), velocity (P = .24; 0.84), oxygen uptake (P = .79; 0.10), ventilation (P = .11; 0.59), heart rate (P = .21; 0.89), blood lactate concentration (P = .82; 0.59), and ratings of perceived exertion (P = .19; 1.01) were also unaffected by the different types of clothing.Conclusion:Elite ice speed skaters show an asymmetry in tissue oxygenation of both vastus lateralis muscles during 3000-m events remaining during the long gliding phases along the straight sections of the track. Based on the data, the authors conclude that there are no performance-enhancing benefits from wearing leg compression under a normal racing suit.

A Perceptually-regulated Exercise Test Predicts Peak Oxygen Uptake in Older Active Adults

2015 ◽  
Vol 23 (2) ◽  
pp. 205-211 ◽  
Author(s):  
Ashleigh E. Smith ◽  
Roger G. Eston ◽  
Belinda Norton ◽  
Gaynor Parfitt
Keyword(s):  
Older Adults ◽  
Oxygen Uptake ◽  
Exercise Test ◽  
Perceived Exertion ◽  
Peak Oxygen Uptake ◽  
Middle Aged ◽  
Ratings Of Perceived Exertion ◽  
Middle Aged Adults ◽  
Active Adults

Peak oxygen uptake (V̇O2peak) is reliably predicted in young and middle-aged adults using a submaximal perceptually-regulated exercise test (PRET). It is unknown whether older adults can use a PRET to accurately predict V̇O2peak. In this study, the validity of a treadmill-based PRET to predict V̇O2peak was assessed in 24 participants (65.2 ± 3.9 years, 11 males). The PRET required a change in speed or incline corresponding to ratings of perceived exertion (RPE) 9, 11, 13, and 15. Extrapolation of submaximal V̇O2 from the PRET to RPE endpoints 19 and 20 and age-predicted HRmax were compared with measured V̇O2peak. The V̇O2 extrapolated to both RPE19 and 20 over-predicted V̇O2peak (p < .001). However, extrapolating V̇O2 to age-predicted HRmax accurately predicted V̇O2peak (r = .84). Results indicate older adults can use a PRET to predict V̇O2peak by extrapolating V̇O2 from submaximal intensities to an age-predicted HRmax.

scholarly journals Prediction of peak oxygen uptake in children using submaximal ratings of perceived exertion during treadmill exercise

2016 ◽  
Vol 116 (6) ◽  
pp. 1189-1195
Author(s):  
Danielle Lambrick ◽  
Haley Bertelsen ◽  
Roger Eston ◽  
Lee Stoner ◽  
James Faulkner
Keyword(s):  
Oxygen Uptake ◽  
Perceived Exertion ◽  
Treadmill Exercise ◽  
Peak Oxygen Uptake ◽  
Ratings Of Perceived Exertion
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