SwimOne. New Device for Determining Instantaneous Power and Propulsive Forces in Swimming

Hermosilla, Francisco; Corral-Gómez, Lis; González-Ravé, José María; Santos-García, Daniel Juárez; Rodríguez-Rosa, David; Juárez-Pérez, Sergio; Castillo-García, Fernando J.

doi:10.3390/s20247169

Cited by 4 publications

(2 citation statements)

References 26 publications

(15 reference statements)

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“…The cameras were positioned at 60-cm depth taking into account the swimming pool characteristics. The swimmer was connected to SwimOne device by means of a hardness through a steel cable [20]. For the work presented here, the drum of SwimOne was locked, and the swimmer therefore performed the swimming trials without moving forward.…”

Section: Hardware Description and Experimental Settingmentioning

confidence: 99%

Vision-Based System for Automated Estimation of the Frontal Area of Swimmers: Towards the Determination of the Instant Active Drag: A Pilot Study

Ravé

Moya-Fernández

Hermosilla-Perona

et al. 2022

Sensors

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Swimmers take great advantage by reducing the drag forces either in passive or active conditions. The purpose of this work is to determine the frontal area of swimmers by means of an automated vision system. The proposed algorithm is automated and also allows to determine lateral pose of the swimmer for training purposes. In this way, a step towards the determination of the instantaneous active drag is reached that could be obtained by correlating the effective frontal area of the swimmer to the velocity. This article shows a novel algorithm for estimating the frontal and lateral area in comparison with other models. The computing time allows to obtain a reasonable online representation of the results. The development of an automated method to obtain the frontal surface area during swimming increases the knowledge of the temporal fluctuation of the frontal surface area in swimming. It would allow the best monitoring of a swimmer in their swimming training sessions. Further works will present the complete device, which allows to track the swimmer while acquiring the images and a more realistic model of conventional active drag ones.

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Section: Hardware Description and Experimental Settingmentioning

confidence: 99%

Vision-Based System for Automated Estimation of the Frontal Area of Swimmers: Towards the Determination of the Instant Active Drag: A Pilot Study

Ravé

Moya-Fernández

Hermosilla-Perona

et al. 2022

Sensors

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“…Besides, the semitethered protocol allows to better understand propulsion (9) and active drag (10). More recently, with the help of technologies (i.e., speedometer and force transducer) resulting in the development of new devices (e.g., SwimOne; Sportmetrics S.L., Spain; 1080 Sprint, 1080 Motion, Lidingö, Sweden), some studies highlighted the possibilities of assessing dynamic variables with an easy and rapid feedback on the field (11)(12)(13). Other variables such as the intra-cycle velocity variations (IVV), which is associated to dynamic variables and especially to drag, can also be measured using such devices, providing important additional information (14,15).…”

Section: Introductionmentioning

confidence: 99%

Associations between load-velocity profiling and race parameters of elite swimmers in the 100 and 200m freestyle events

Raineteau,

Nicolas,

Bideau

et al. 2023

Front. Sports Act. Living

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IntroductionImproving swimming performance involves assessments of biomechanical variables of the stroke, and it can be achieved using semi-tethered swimming tests. The aim of this study was thus to investigate the associations between load-velocity (L-V) profiles, from a semi-tethered swimming protocol and race variables in the 100 m and 200 m freestyle events.MethodsEight swimmers completed a L-V profiling protocol consisting of four sprints (25 m, 25 m, 20 m, 15 m) against increasing loads (0.1, 2.0, 4.0, 6.0 kg respectively) with complete recovery between repetitions (>5 min). The L-V linear regression was used to estimate maximal velocity (V0) and body mass normalized load (rL0). Race variables such as clean swimming speed (V), stroke rate (SR), distance per cycle (SL) and stroke index (SI) were assessed from video analysis of 100 m and 200 m freestyle events taking place 3–4 days after the L-V protocol.ResultsL-V results showed high levels of speed (mean ± SD: 1.87 ± 0.04 m/s) and heavy maximal relative loads (mean ± SD: 38.5 ± 6.51 as % of body mass). Swimmers also achieved high-level performances in the 100 m (mean ± SD time: 51.95 ± 0.75 s) and the 200 m (mean ± SD time: 113.85 ± 2.67 s). For the 100 m events, the maximal relative load showed strong correlation with performance (r = 0.63) whereas trivial correlation was observed for the 200 m events (r = 0.12). SR on the 100 m and the 200 m also showed very strong association with rL0 (r = 0.83) and a strong association with V0 (r = 0.68) respectively.ConclusionThe relationships between L-V variables and race variables depend on the distance of the event. However, L-V variables seem to be less related to SR and SL evolutions for the 100 m than in the 200 m event. Moreover, L-V profiles tend to be more related to the 100 m than 200 m freestyle performance. L-V profile should be interpreted taking into consideration the specific physiological and biomechanical constraints of the main events of the swimmer.

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Development of prototypes in sport: A systematic review

Silva

Batista

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part P:

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This study systematically reviewed the available scientific evidence pertaining to the different types of prototypes available, discussed their current use, and present and future applications in sports science. The electronic databases National Library of Medicine (PubMed), Web of Science™ and Scopus were searched from January 2016 to September 2021. Of the 750 articles identified, 714 articles were excluded based on title and abstract and/or for duplicates. Moreover, of the 36 articles selected, 11 articles (30.5%) were related to the development of prototypes for carrying out tactical-technical or physical performance analyzes of athletes in different sports, 22 articles (61.1%) were related to the creation of “equipment or clothing” prototypes used in sports activities and three articles (8.3%) were related to the creation of prototypes that aim to improve the technical performance of athletes. It was concluded that the development of prototypes in sport had a significant impact on the monitoring of athletes in the field of sport sciences. The prototypes provide coaches and technical professionals with the monitoring of physiological, tactical-technical, and physical parameters in real time during training and sports competitions. These parameters can be used for recognition of movement patterns and prevention of potential injuries, such as concussion and fatigue.

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SwimOne. New Device for Determining Instantaneous Power and Propulsive Forces in Swimming

Cited by 4 publications

References 26 publications

Vision-Based System for Automated Estimation of the Frontal Area of Swimmers: Towards the Determination of the Instant Active Drag: A Pilot Study

Vision-Based System for Automated Estimation of the Frontal Area of Swimmers: Towards the Determination of the Instant Active Drag: A Pilot Study

Associations between load-velocity profiling and race parameters of elite swimmers in the 100 and 200m freestyle events

Development of prototypes in sport: A systematic review

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