Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying Loads
<b>Background:</b> Evaluations of the usability of hydraulic resistance for resisted sprint-training purposes remains rare. Thus, this study compared step-by-step changes in spatiotemporal characteristics during the first 10 m of sprints with varying hydraulic resistance loads. <b>...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Journal of Functional Morphology and Kinesiology |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2411-5142/9/4/263 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850050270913888256 |
|---|---|
| author | Matic Sašek Žiga Leban Sara Kranjc Nejc Šarabon |
| author_facet | Matic Sašek Žiga Leban Sara Kranjc Nejc Šarabon |
| author_sort | Matic Sašek |
| collection | DOAJ |
| description | <b>Background:</b> Evaluations of the usability of hydraulic resistance for resisted sprint-training purposes remains rare. Thus, this study compared step-by-step changes in spatiotemporal characteristics during the first 10 m of sprints with varying hydraulic resistance loads. <b>Methods:</b> Fourteen male athletes performed 20 m sprints under minimal (10 N, considered as normal sprint), moderate (100 N), and heavy (150 N) hydraulic resistance loads. Split times at 10 m, contact time (CT), step length (SL), flight time, and step speed (SS) from the first to the sixth step were measured. A two-way repeated measures ANOVA (load × step) and a one-way ANOVA (load) with post hoc comparisons were used to assess the effects on spatiotemporal characteristics and split times, respectively. <b>Results:</b> Under higher loads, the 10 m times were significantly longer (η<sup>2</sup> = 0.79). The CT, SL, and SS varied significantly from step to step within all loads (η<sup>2</sup> = 0.45, 0.41, and 0.54, respectively). The CT, SL, and SS of the first, fourth, fifth, and sixth steps of normal sprint differed significantly from most steps under moderate and heavy load (Cohen’s <i>d</i> = −3.09 to 5.39). In contrast, the smallest differences were observed between the second and third step of normal sprint and second to sixth steps under heavy load (Cohen’s <i>d</i> = −0.67 to 1.32, and −0.71 to 1.38, respectively). <b>Conclusions:</b> At the same load settings, a hydraulic resistance device induces changes in step characteristics comparable with those of other motorized devices and is therefore a viable option for resisted sprint training. If the goal of the training is to replicate the steps of the initial sprint acceleration phase, ~150 N of hydraulic resistance would be optimal. |
| format | Article |
| id | doaj-art-a0d77eab52a54f9c80490185dcd0b1f1 |
| institution | DOAJ |
| issn | 2411-5142 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Functional Morphology and Kinesiology |
| spelling | doaj-art-a0d77eab52a54f9c80490185dcd0b1f12025-08-20T02:53:30ZengMDPI AGJournal of Functional Morphology and Kinesiology2411-51422024-12-019426310.3390/jfmk9040263Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying LoadsMatic Sašek0Žiga Leban1Sara Kranjc2Nejc Šarabon3Faculty of Health Sciences, University of Primorska, 6310 Izola, SloveniaFaculty of Health Sciences, University of Primorska, 6310 Izola, SloveniaFaculty of Health Sciences, University of Primorska, 6310 Izola, SloveniaFaculty of Health Sciences, University of Primorska, 6310 Izola, Slovenia<b>Background:</b> Evaluations of the usability of hydraulic resistance for resisted sprint-training purposes remains rare. Thus, this study compared step-by-step changes in spatiotemporal characteristics during the first 10 m of sprints with varying hydraulic resistance loads. <b>Methods:</b> Fourteen male athletes performed 20 m sprints under minimal (10 N, considered as normal sprint), moderate (100 N), and heavy (150 N) hydraulic resistance loads. Split times at 10 m, contact time (CT), step length (SL), flight time, and step speed (SS) from the first to the sixth step were measured. A two-way repeated measures ANOVA (load × step) and a one-way ANOVA (load) with post hoc comparisons were used to assess the effects on spatiotemporal characteristics and split times, respectively. <b>Results:</b> Under higher loads, the 10 m times were significantly longer (η<sup>2</sup> = 0.79). The CT, SL, and SS varied significantly from step to step within all loads (η<sup>2</sup> = 0.45, 0.41, and 0.54, respectively). The CT, SL, and SS of the first, fourth, fifth, and sixth steps of normal sprint differed significantly from most steps under moderate and heavy load (Cohen’s <i>d</i> = −3.09 to 5.39). In contrast, the smallest differences were observed between the second and third step of normal sprint and second to sixth steps under heavy load (Cohen’s <i>d</i> = −0.67 to 1.32, and −0.71 to 1.38, respectively). <b>Conclusions:</b> At the same load settings, a hydraulic resistance device induces changes in step characteristics comparable with those of other motorized devices and is therefore a viable option for resisted sprint training. If the goal of the training is to replicate the steps of the initial sprint acceleration phase, ~150 N of hydraulic resistance would be optimal.https://www.mdpi.com/2411-5142/9/4/263resisted sprintshydraulic resistancespatiotemporal characteristicssprint accelerationspeed training |
| spellingShingle | Matic Sašek Žiga Leban Sara Kranjc Nejc Šarabon Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying Loads Journal of Functional Morphology and Kinesiology resisted sprints hydraulic resistance spatiotemporal characteristics sprint acceleration speed training |
| title | Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying Loads |
| title_full | Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying Loads |
| title_fullStr | Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying Loads |
| title_full_unstemmed | Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying Loads |
| title_short | Impact of Hydraulic Resistance on Spatiotemporal Characteristics of Initial Six Steps When Sprinting Under Varying Loads |
| title_sort | impact of hydraulic resistance on spatiotemporal characteristics of initial six steps when sprinting under varying loads |
| topic | resisted sprints hydraulic resistance spatiotemporal characteristics sprint acceleration speed training |
| url | https://www.mdpi.com/2411-5142/9/4/263 |
| work_keys_str_mv | AT maticsasek impactofhydraulicresistanceonspatiotemporalcharacteristicsofinitialsixstepswhensprintingundervaryingloads AT zigaleban impactofhydraulicresistanceonspatiotemporalcharacteristicsofinitialsixstepswhensprintingundervaryingloads AT sarakranjc impactofhydraulicresistanceonspatiotemporalcharacteristicsofinitialsixstepswhensprintingundervaryingloads AT nejcsarabon impactofhydraulicresistanceonspatiotemporalcharacteristicsofinitialsixstepswhensprintingundervaryingloads |