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- Kårström, Andreas, et al.
(författare)
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School’s out for summer–Differences in training characteristics between adolescent biathletes of different performance levels
- 2023
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 18:8
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study was to retrospectively describe the longitudinal changes of training variables in adolescent biathletes based on performance level. Thirty biathletes (15 men and 15 women) were included in the study and categorized as either national level biathletes (NLB, n = 21) or national team biathletes (NTB, n = 9). Retrospective training data was collected from training diary covering the biathletes’ four years (Y1-Y4) as student-athletes at upper secondary school. Training data was divided into physical and shooting training variables. A linear mixed-effect model was used for comparing the difference of the performance group and year of upper secondary school on training characteristics. The NTB group achieved a greater annual training volume than the NLB group, especially during Y4 (594±71 h·y-1 vs 461±127 h·y-1, p < 0.001), through an increase in duration of each session and by completing more weekly training volume during the general phase (13.7±4.6 vs 10.0±4.9 h·w-1, p = 0.004). No difference was observed in relative training intensity distribution between the groups. The total number of shots fired was also greater for the NTB (9971±4716 vs 7355±2812 shots·y-1, p = 0.003). There was an equal frequency in illness and injury for both the NLB and NTB. Accordingly, the results of the present study describe longitudinal changes of biathlon training in adolescent biathletes that also may affect performance development.
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| 2. |
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| 3. |
- Kårström, Andreas, et al.
(författare)
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Training Characteristics Of Swedish Adolescent Biathletes
- 2023
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Ingår i: Abstract Book of the 9th International Congress on Science and Skiing. ; , s. 81-81
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Konferensbidrag (refereegranskat)abstract
- INTRODUCTION: At upper secondary school (USS) with a sport profile, late adolescent athletes choose to specialize in one sport and balance an academic career while they aim to become a top-level athlete. Hence, the aim for this study was to examine the distribution in endurance training volume and intensity in two different performance groups of biathletes during their student-athlete pathway at USS.METHODS: Retrospective training data of thirty adolescent biathletes (15 men and 15 women) was collected. The training data included training volume (h·y-1) and intensity distribution, using a five-zone model (Seiler, 2010). Inclusion criteria was completion of four years of USS (16 to 19 years old) and with a continued competing in biathlon post USS. The biathletes were grouped based on biathlon performance: that if they during or after USS were selected as a nationalteam biathlete (NTB, n = 9) by the Swedish Biathlon Federation or stayed a national level biathlete (NLB, n = 21). A linear mixed model was fitted for assessing the relationship between performance group and age-group on the training characteristics.RESULTS: NTB and NLB had equal training volume and intensity distribution at year one, two and three. At year four NTB had a ~30% greater training volume than NLB (594 ± 71 h·y-1 vs 461 ± 127 h·y-1, p = .003) while performing the same number of training sessions (NTB, 359 ± 40 n, NLB, 320 ± 83 n, p = 0.878). There was no difference in training distribution at year one, two and three. At year four the NTB accumulated greater training volume compared to NLB in zone 1 (495 ± 54 vs 387 ± 107, p = .008) and zone 3 (21 ± 12 vs 13 ± 6, p = .019) respectively. DISCUSSION/CONCLUSION: This study showed that a greater overall training volume during the last year of USS is of importance to become a NTB compared to NLB. The increased training volume for NTB was distributed in zone 1 and 3. The equal amount of training sessions indicates that NTB trained longer sessions. And speculatively, the greater amount of training volume was performed during non-school hours, because of the dual-career system and structure of the Swedish USS. Accordingly, this study conclude that late adolescent biathletes should increase their training volume, preferably in both zone 1 and in zone 3, outside of their normal USS training for increasing their chance of being selected to a national team. REFERENCES: Seiler, S., 2010. Int J Sports Physiol Perform
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| 4. |
- Westblad, Niklas, et al.
(författare)
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The Effect of Autoregulated Flywheel and Traditional Strength Training on Training Load Progression and Motor Skill Performance in Youth Athletes.
- 2021
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Ingår i: International Journal of Environmental Research and Public Health. - : MDPI. - 1661-7827 .- 1660-4601. ; 18:7
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The effects of flywheel resistance training (FRT) on youth are relatively unknown. The aim of this study was to compare the effects of autoregulated FRT with traditional strength training (TST) on jumping, running performance and resistance training load progression in youth athletes. Thirty youth athletes (11.8 ± 0.9 yr) were matched for peak height velocity (PHV) status and block-randomised into two groups: FRT (n = 15, PHV -0.8 ± 1.6) and TST (n = 15, PHV -0.8 ± 1.5). Twelve resistance training sessions over a six-week intervention with flywheel or barbell squats were performed using autoregulated load prescription. Squat jump (SJ); countermovement jump (CMJ); and 10 m, 20 m and 30 m sprints were assessed pre- and post-intervention. The external load increased similarly for FRT and TST (z = 3.8, p = 0.06). SJ increased for both groups (p < 0.05) but running performance was unaffected (p > 0.05).CONCLUSIONS: FRT resulted in similar load progression and motor skill development in youth athletes as TST, but the perceived exertion was less. Autoregulation is a practical method for adjusting training load during FRT and should be considered as an alternative to autoregulated TST.
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