Power Production and Biochemical Markers of Metabolic Stress and Muscle Damage Following a Single Bout of Short-Sprint and Heavy Strength Exercise in Well-Trained Cyclists

Kristoffersen, Morten; Sandbakk, Øyvind; Tønnessen, Espen; Svendsen, Ida S.; Paulsen, Gøran; Ersvær, Elisabeth; Nygård, Irene; Rostad, Kari; Ryningen, Anita; Iversen, Vegard Vereide; Skovereng, Knut; Rønnestad, Bent R.; Gundersen, Hilde

doi:10.3389/fphys.2018.00155

Cited by 4 publications

(12 citation statements)

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“…Our analyses showed significant negative correlations between two of our investigated miRNAs, with CK and [La], however extracting true meaningful information from these analyses, performed on such a low number of sample data that was available in this study, is difficult. Kristoffersen et al (2018) investigated the presence of DOMS (delayed-onset muscle soreness) post SS and HS training sessions in elite cyclists. Although they reported relatively low DOMS scores, possibly due to the higher fitness levels in the participants, a significantly higher DOMS score (and CK level) was identified 45 h after an HS session (similar levels after 21 h) compared to the SS session.…”

Section: Discussionmentioning

confidence: 99%

Acute response in circulating microRNAs following a single bout of short-sprint and heavy strength training in well-trained cyclists

Ryningen,

Rostad,

Ersvær

et al. 2024

Front. Physiol.

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Background: Heavy strength (HS) and short-sprint (SS) are commonly used training methods for competitive road cyclists, with the aim to improve the anaerobic power and short time cycling performance. Knowledge of how such training methods affects biochemical as well as molecular factors, are particularly important for determining individual recovery and long-term adaptations. The primary aim of the current study was to investigate the expression levels of small non-coding RNAs in response to HS and SS training in elite cyclists as potential biomarkers for individual optimal restitution time.Methods: Eleven well trained cyclists performed one session of HS training and one session of SS training on separate days. Blood samples were taken at baseline and 5 min, 1 h and 21 h post training. Along with physiological measurements and biochemical factors (serum creatine kinase, myoglobin, human growth hormone and plasma lactate), real-time quantitative PCR was used to explore whether HS and/or SS training influenced the abundance of 24 circulating miRNAs, in serum, associated with muscle development, angiogenesis, and/or inflammation.Results: Based on complete miRNA profiles from nine cyclists, the miRNAs showing most altered expression after both training sessions included the three striated muscle-specific miRNAs (myomiRs) miR-1-3p, 133a-3p and 133b-3p. While all three miRNAs showed significantly highest expression at 1 h post HS session, the acute effect of the SS session included a significantly higher level of miR-1-3p alone, at 5 min (highest), as well as at 1 h and 21 h post session. Correlation (negative) with biochemical markers was only shown for miR-133a-3p and CK (r = −0.786, p = 0.041) and between miR-133b-3p and [La−] (r = −0.711, p = .032), at 21 h post SS session.Conclusion: Our findings support that unique myomiRs are regulated by HS and SS training. Such knowledge may be important for individually adjusted restitution times.

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Section: Discussionmentioning

confidence: 99%

Acute response in circulating microRNAs following a single bout of short-sprint and heavy strength training in well-trained cyclists

Ryningen,

Rostad,

Ersvær

et al. 2024

Front. Physiol.

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“…The specificity of the SST is the most likely explanation for the greater improvement in the SST group. However, the greater metabolic disturbance caused by SST (Kristoffersen et al, 2018) might be an additional reason for the greater improvement in APO in the 30-s test, where lactic anaerobic capacity is needed (Jacobs et al, 1983; Ross and Leveritt, 2001).…”

Section: Discussionmentioning

confidence: 99%

“…The SST program was based on a recent study conducted in our laboratory (Kristoffersen et al, 2018). All sprints in the SST sessions were conducted using an air-braked cycle ergometer (WattBike Ltd., Nottingham, United Kingdom) in a seated position, from a standstill start, with the preferred leg chosen by the participant.…”

Section: Methodsmentioning

confidence: 99%

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Comparison of Short-Sprint and Heavy Strength Training on Cycling Performance

et al. 2019

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Purpose To compare the effects of short-sprint training (SST) and heavy-strength training (HST) following a 4-week strength-training period on sprint and endurance capacities in well-trained cyclists. Methods Twenty-eight competitive cyclists (age 29 ± 6 years) with maximal oxygen uptake ( ) of 61.1 ± 5.9 mL⋅min –1 ⋅kg –1 participated. After a 4-weeks preparation strength-training period, the participants were randomized to add either HST or SST to their usual endurance training for the subsequent 6 weeks. Body composition, and power output at blood lactate concentration ([La – ]) of 4 mmol⋅L –1 , as well as a 100 min cycling test including 6 and 30-s sprints, 60 min cycling at [La – ] of 2 mmol⋅L –1 and 5-min all-out cycling were performed before the 4-week preparation strength-training period, and before and after the 6-week intervention period. In addition, 1 repetition maximum (RM) in half-squat and 55-m maximal sprints on the cyclists’ own bikes were measured before and after the 6-week intervention. Results SST was superior to HST in 6-s sprint performance, both in a fresh state (4.7 ± 2.6% vs. 1.1 ± 3.5%) and after prolong cycling (6.1 ± 1.8% vs. 1.8 ± 4.2%), in 30-s sprint (3.7 ± 2.8% vs. 1.3 ± 2.5%) and in 55-m seated sprint on own bike (4.3 ± 2.1% vs. 0.2 ± 1.8%) (all p < 0.002). HST induced a larger 1RM improvement in the half-squat test than SST (9.3 ± 3.6% vs. −3.9 ± 3.8%; p < 0.001). No group differences were revealed in the 5-min all-out test, , power output at 4 mmol⋅L –1 [La – ], or in gross efficiency. Conclusion SST led to a greater increase in average and peak power output on all sprint tests compared to HST, whereas HST led to a greater increase in maximal strength. No group differences were found in relative changes in endurance capacities. Altogether, our results show a high degree of specificity in the adaptations of both SST and HST.

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“…The power output at a predetermined [Lā] of 2.5 mmol L −1 [W 2.5(Lā) ] was subsequently calculated by plotting [Lā] as a function of power output and applying linear regression between the two data points, which included the value of 2.5 mmol L −1 . This method has previously been used to determine power output at predetermined values of [Lā] ( 4 , 12 ). Pedal force was measured, throughout 30 s, at each bout.…”

Section: Methodsmentioning

confidence: 99%

Maximal accelerations for twelve weeks elicit improvement in a single out of a collection of cycling performance indicators in trained cyclists

Hyttel

Kristiansen

Hansen

2023

Front. Sports Act. Living

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IntroductionCycling is a time-consuming sport. Cyclists, as many other athletes, therefore, focus on training effectively. The hypothesis was tested that twelve weeks of supplementary maximal acceleration training caused more favourable changes in cycling performance indicators as compared to changes measured in comparable control cyclists.MethodsTrained cyclists (n = 24) participated. A control group and a group performing maximal acceleration training, as a supplement to their usual training, were formed. The maximal acceleration training consisted of series of ten repetitions of outdoor brief maximal accelerations, which were initiated from low speed and performed in a large gear ratio. The cyclists in the control group performed their usual training. Performance indicators, in form of peak power output in a 7-s maximal isokinetic sprint test, maximal aerobic power output in a graded test, and submaximal power output at a predetermined blood lactate concentration of 2.5 mmol L−1 in a graded test were measured before and after the intervention.ResultsPeak power output in the sprint test was increased (4.1% from before to after the intervention) to a larger extent (p = 0.045) in the cyclists who had performed the maximal acceleration training than in the control cyclists (−2.8%). Changes in maximal aerobic power output and in submaximal power output at a blood lactate concentration of 2.5 mmol L−1 were not significantly different between the groups (p > 0.351).DiscussionThe results indicated that the applied supplementary maximal acceleration training caused modest favourable changes of performance indicators, as compared to the changes measured in a group of comparable control cyclists.

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Power Production and Biochemical Markers of Metabolic Stress and Muscle Damage Following a Single Bout of Short-Sprint and Heavy Strength Exercise in Well-Trained Cyclists

Cited by 4 publications

References 45 publications

Acute response in circulating microRNAs following a single bout of short-sprint and heavy strength training in well-trained cyclists

Acute response in circulating microRNAs following a single bout of short-sprint and heavy strength training in well-trained cyclists

Comparison of Short-Sprint and Heavy Strength Training on Cycling Performance

Maximal accelerations for twelve weeks elicit improvement in a single out of a collection of cycling performance indicators in trained cyclists

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