WO2015155069A1 - Système extracorporel pour le suivi des performances d'un nageur - Google Patents

Système extracorporel pour le suivi des performances d'un nageur Download PDF

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Publication number
WO2015155069A1
WO2015155069A1 PCT/EP2015/057066 EP2015057066W WO2015155069A1 WO 2015155069 A1 WO2015155069 A1 WO 2015155069A1 EP 2015057066 W EP2015057066 W EP 2015057066W WO 2015155069 A1 WO2015155069 A1 WO 2015155069A1
Authority
WO
WIPO (PCT)
Prior art keywords
garment
heart rate
swimmer
sensors
casing
Prior art date
Application number
PCT/EP2015/057066
Other languages
English (en)
Inventor
Giuseppe Andreoni
Riccardo LAVEZZARI
Paolo PEREGO
Lara Alessia Laura Moltani
Original Assignee
Politecnico Di Milano
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politecnico Di Milano filed Critical Politecnico Di Milano
Priority to CN201580026034.0A priority Critical patent/CN106455993A/zh
Priority to EP15716000.3A priority patent/EP3128905A1/fr
Publication of WO2015155069A1 publication Critical patent/WO2015155069A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/6804—Garments; Clothes

Definitions

  • the present invention relates to a wearable system for monitoring a swimmer's performance.
  • the present invention relates to a system composed of a sensor-fitted garment and a device coupled thereto, capable of providing data about the heart rate, movement and acceleration of the swimmer wearing it.
  • the present invention is intended, therefore, to be used mainly by the user during swimming practice in order to improve his or her performance and increase fitness, or to measure the effects of a water-based rehabil itation therapy.
  • swimming does not require any costly equipment, but rather only a costume, a pair of goggles and a swimming cap.
  • the sport's popularity can also be attributed to the large number of sporting events that feature it, for example the Olympic Games, where swimming is one of the major sports and one of those most followed by the public.
  • this category of swimmer is not fol lowed by a trainer and does not make use of advanced instrumentation to analyse their sports training in order to improve their performance and optimize the time used for training.
  • Swi mming is a cyclical sport, the ai m of which is to move through water smoothly and quickly.
  • US PATENT 20 1 1 /0 1 72549 describes a heart rate and El ec t rocard i og ram (ECG) monitoring system for use in high-motion conditions, and even under water.
  • the system features a strap on which both electrodes and the processor that analyses the signals from the electrodes are positioned.
  • This processor is positioned on the chest of the swimmer, which however proves uncomfortable and bulky when swimming, and when practicing any other water sport.
  • the use of a simple strap for positioning the electrodes and the processor can be disadvantageous, since the swimmer's movement together with the presence of water, which acts as a lubricant, can cause the strap to sl ide along the swimmer's body, thereby compromising the detection of the ECG signal and the performance of the swimmer, who may now find an object hanging around his or her waist.
  • WO 2010/113134 describes a monitoring device for swi mming wherein there is a sensor for detecting the position of the swimmer during physical activity.
  • the device which can also be fitted a heart rate detection system, presents certain problems in relation to the position of the sensor both in terms of stability and in terms of its bulk and the discomfort it may cause the swimmer.
  • the position of the sensor in the centre of the swimmer's chest can be uncomfortable and impractical for swimming.
  • the chest strap on which it is positioned can move easily when swi mming, thereby changing the position of the sensor and inval idating the signal reading.
  • An aim of the present invention is therefore to provide a system for monitoring the physical performance of a swi mmer that can also operate easily under water.
  • a further aim of the present invention is to provide a monitoring system that can be easily worn by the swimmer and at the same time is stable and not uncomfortable during physical exertion and movement.
  • Another aim of the present invention is to provide a monitoring system that can assess both the swi mmer's technique and his or her physical performance, so as to obtain complete training data.
  • a garment for practicing water sports characterized in that it comprises two or more heart rate and/or ECG signal sensors, an inertia! system for detecting movement comprising an accelerometer, a heart rate and/or ECG signal detection circuit, a microprocessor for analysing the data from said heart rate and/or ECG signal detection sensors, and a transmitter for sending said data to a receiver unit; said movement detection inertia!
  • said microprocessor, said circuit and said transmitter being contained in a casing placed on the back portion of said garment so that said casing is placed along the spinal column in a position corresponding to thoracic vertebrae T6-L3 when the garment is worn by the user.
  • the heart rate detection sensors are positioned on the t h o rac i c - abd o m i n a 1 portion of the garment, so that said sensors are positioned in the upper thoracic-abdominal strip area in a position corresponding to ribs 9- 12. This guarantees correct contact with the skin in the best position for detecting heart rate.
  • the movement detection inertia! system comprises a gyroscope, so that it is possible to detect with great sensitivity the position of the swimmer in space.
  • the heart rate sensors are positioned along an elastic strap in the abdominal portion of the garment. This guarantees the correct position of the sensors and l imited discomfort for the swimmer even when breathing heavily during physical exertion.
  • the heart rate sensors are made of textile material. This guarantees an excellent contact with the skin so as to obtain a precise signal at all times.
  • the heart rate sensors have a convex profile turned towards the inside of the garment. In this way, contact with the swimmer's skin is maximized even in the event of a slight movement of the garment on the swimmer's body.
  • the casing containing the movement detection inertia! system, the circuit, the microprocessor and the transmitter is made of an impermeable material. This will guarantee the optimal operation of the components even when operating in water, thereby making it possible to monitor the swimmer's performance while swimming.
  • the impermeable material the casing is made from is selected from the group made up of polyethylene, polypropylene and polystyrene. More preferably, the casing is made from high-density polyethylene. This will guarantee the optimal impermeability of the components while keeping the system as light as possible and also helping it to float.
  • the garment for practicing water sports according to the present invention comprises a data display unit comprising a receiver unit and a display.
  • a data display unit comprising a receiver unit and a display.
  • the garment for practicing water sports according to the present invention comprises a storage unit for recording the data analysed by said microprocessor, thereby making it possible to store data during the training session and transfer them subsequently to the receiver unit.
  • Figure 1 A shows a front view of an embodiment of the garment according to the present invention, for a female model ;
  • Figure I B shows a side view of an embodiment of the garment according to the present invention, for a female model ;
  • Figure I C shows a rear view of an embodiment of the garment according to the present invention, for a female model ;
  • Figure 2 A shows a front view of an embodiment of the garment according to the present invention, for a male model
  • Figure 2B shows a side view of an embodiment of the garment according to the present invention, for a male model
  • Figure 2C shows a rear view of an embodiment of the garment according to the present invention, for a male model
  • Figure 3 shows a schematic view illustrating the position on the swimmer's back of the casing containing the accelerometer, microprocessor and transmitter;
  • Figure 4 shows a schematic view illustrating the position on the swimmer's upper body of the heart rate sensors
  • Figure 5 shows a graph of the front-rear, lateral and vertical acceleration when doing crawl
  • Figure 6 shows a graph of the front-rear, lateral and vertical acceleration when doing the breaststroke
  • Figure 7 shows a graph of the front-rear, lateral and vertical acceleration when doing the backstroke.
  • the garment for water sports consists of a costume, in other words a garment made from a material suitable for use in water when practicing sport as commonly recognized, which can be worn on the upper body of the swimmer, and in particular can be worn as a bib.
  • This particular embodiment allows the garment to be comfortable and prevents it from moving and slipping along the swimmer's when swimming, which would alter the measurements and create discomfort, and the area of the electrodes in contact with the skin is made impermeable.
  • the garment 10 can be used by both female and male athletes, thanks to the cut and shape of the fabric used. This enables swimmers to have a garment that fits perfectly and is therefore comfortable both for female users and male users.
  • the garment 10 comprises two or more heart rate and/or E l ec t roca rd i og ra m (ECG) signal sensors 100, positioned along an elastic strip 110 placed on the abdominal portion of the garment, as illustrated in figures I A and 2 A.
  • the sensors 100 are placed such that they are in a position corresponding to ribs 9- 1 2 once the garment has been put on by the swimmer, as illustrated in figure 4. This guarantees perfect reception of the electrical signal generated by the heartbeat.
  • this position is also the ideal position from the ergonomic point of view, since it creates the least possible discomfort for the swimmer during periods of physical activity.
  • the elastic strip 110 serves the dual purpose of keeping the garment in the correct position, by adhering perfectly to the swimmer's upper body, and of guaranteeing the correct contact of the heart rate sensors 100 with the swimmer's skin, thereby guaranteeing continuous, effective reception of the electrical signal needed to monitor heart rate, although the area in question is impermeable to prevent short circuits between the electrodes caused by the presence of water.
  • the garment comprises a series of sensors positioned along the elastic strip in order to detect not only the heart rate but also to make it possible to obtain an e 1 ec t roc ard i og ra m trace, so as to have additional, more detailed information about the swimmer's fitness.
  • the heart rate and/or ECG signal sensors 100 are made of a textile material, in other words they are made of a fabric that can conduct electricity, which is applied to the elastic strip 110 in the inner portion of the garment so as to ensure a better contact with the swimmer's skin.
  • the sensors 100 are padded with soft, inert textile material so as to be sl ightly rounded and therefore to have a convex profile turned towards the inside of the garment 10. This guarantees a better contact of the electrodes on the skin, without creating discomfort for the swimmer.
  • the electrical signals detected by the sensors 100 are picked up by an electrical circuit and analysed by a microprocessor - according to the state of the art - which is connected to them by means of normal electrical connection systems.
  • the garment 10 comprises an inertia! system consisting of at least one triaxial accelerometer or a series of uniaxial accelero meters capable of detecting and measuring the swimmer's acceleration and therefore capable of detecting movement along the three Cartesian axes X, Y and Z so as to have a precise indication of the movement of the swimmer's body in order to assess the technical component in relation to the various swimming strokes.
  • the garment comprises a gyroscope capable of precisely detecting the swimmer's position in space, so as to be able to understand exactly the position of the swimmer's body during the various stages of the different swimming strokes, thereby making it possible to correct any errors of positioning or movement.
  • the signals from the accelerometer are also collected and analysed by a microprocessor, in the same way as the signals coming from the heart rate sensors.
  • the garment comprises a gyroscope capable of precisely detecting the swimmer's position in space, so as to be able to understand exactly the position of the swimmer's body during the various stages of the different swimming strokes, so as to be able to understand exactly the position of the swimmer's body during the various stages of the different swimming strokes.
  • the inertia! system and the microprocessor for processing the signals both from the inertial system itself and from the heart rate and/or ECG signal sensors are contained in a casing 200 made of an impermeable material .
  • the casing 200 containing the inertial system and the microprocessor is positioned on the back portion of the garment 10, as illustrated in figures 1 B, I C, 2B and 2C. In particular, it is placed along the spinal column of the swimmer so that it is in a position corresponding to thoracic vertebrae T7-T 1 2 when the garment is put on by the swimmer, as illustrated in figure 3.
  • the casing 200 is placed in a position corresponding to vertebrae T6-L3.
  • the casing 200 is placed in a position corresponding to vertebrae T9-
  • Figures 5, 6 and 7 show the graphs of the accelerations recorded by the accelerometer with reference to the three main swimming strokes.
  • figure 5 shows the graph of accelerations for crawl, in wh ich the individual strokes are indicated by the peaks of lateral acceleration and the propulsive forward thrust is indicated by the Front-rear accelerations, corresponding to each individual stroke.
  • the figure also shows the moment of the turn by the swimmer after a length of the pool, so that it is possible to evaluate each individual length in detail, and any deterioration in the swimmer's performance over time.
  • Figure 6 shows the graph of accelerations for breaststroke, in which the phase of entering and exiting the water is indicated by the vertical accelerations.
  • Figure 7 shows the graph of accelerations for the backstroke, where the individual strokes are also indicated by the lateral accelerations.
  • the position of the casing 200 on the back portion of the garment 10 is particularly suitable both from the point of view of recording of the kinetic movement parameters by the inertial system, and from the point of view of comfort for the swimmer.
  • the position on the back enables the accelerometer to record precisely the lateral, rear and vertical accelerations for the purpose of assessing the swimmer's movement during the three swimming styles, so as to have precise indications of any technical errors to be corrected while swimming, as illustrated above.
  • this position creates the least possible discomfort for the swimmer, thereby al lowing him or her to swim naturally, and therefore enabling a real, effective evaluation of the swi mmi ng stroke to be made.
  • the impermeable material of which the casing 200 is made must guarantee a high degree of impermeabil ity to water, so as to allow the electrical components to operate correctly, but at the same time it must be a l ight, easily-worked material, so as to create the minimum possible discomfort for the swimmer during physical activity, and to allow easy installation of the components during the assembly phase.
  • This impermeable material is selected from the group made up of polyethylene, polypropylene and polystyrene.
  • the casing 200 is made from high-density polyethylene (HDPE) so as to ensure adequate impermeability whi le at the same ti me keeping the weight of the whole garment down.
  • HDPE high-density polyethylene
  • the casing 200 contains a transmitter, connected to the microprocessor, capable of transmitting to a receiving unit the speed and heart rate data recorded.
  • the data are transmitted to an external unit such as a PC, tablet or any other electronic device comprising a signal receiving unit and a display on which to evaluate the signals recorded.
  • These signal receiving and display instruments may be equipped with a data processing program that will enable the quality of the recorded data to be evaluated automatically, thereby providing precise indications relating to the swimmer's training and consequently to any technical changes to be made in order to opti mize the swi mming stroke and improve performance.
  • the garment comprises a storage unit for recording the data analysed by the microprocessor.
  • the recorded data can be transferred to the display unit at any time, including not during the actual training session. This means that the recorded data can be analysed even after several training sessions and not after or during each individual training session.
  • this system offers the same information about heart rate and/or ECG signal and about the kinetic parameters relating to the movement or gesture made.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

La présente invention concerne un système extracorporel permettant de suivre les performances d'un nageur. En particulier, l'invention concerne un système composé d'un vêtement comprenant au moins deux capteurs parmi des capteurs de fréquence cardiaque et/ou des capteurs de signaux d'ECG et un boîtier placé sur la partie arrière du vêtement comprenant un système inertiel de détection de mouvement comprenant un accéléromètre, un circuit de détection de fréquence cardiaque et/ou de signaux d'ECG, un microprocesseur destiné à analyser les données provenant desdits capteurs de détection de fréquence cardiaque et/ou de signaux d'ECG, et un émetteur destiné à envoyer lesdites données à un ensemble récepteur.
PCT/EP2015/057066 2014-04-08 2015-03-31 Système extracorporel pour le suivi des performances d'un nageur WO2015155069A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580026034.0A CN106455993A (zh) 2014-04-08 2015-03-31 用于监测游泳者的表现的可穿戴系统
EP15716000.3A EP3128905A1 (fr) 2014-04-08 2015-03-31 Système extracorporel pour le suivi des performances d'un nageur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2014U000136U ITMI20140136U1 (it) 2014-04-08 2014-04-08 Sistema indossabile per il monitoraggio delle performance del nuotatore
ITMI2014U000136 2014-04-08

Publications (1)

Publication Number Publication Date
WO2015155069A1 true WO2015155069A1 (fr) 2015-10-15

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PCT/EP2015/057066 WO2015155069A1 (fr) 2014-04-08 2015-03-31 Système extracorporel pour le suivi des performances d'un nageur

Country Status (4)

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EP (1) EP3128905A1 (fr)
CN (1) CN106455993A (fr)
IT (1) ITMI20140136U1 (fr)
WO (1) WO2015155069A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10529250B2 (en) 2014-04-29 2020-01-07 Tritonwear Inc. Wireless metric calculating and feedback apparatus, system, and method
WO2020007802A1 (fr) 2018-07-05 2020-01-09 Politecnico Di Milano Système de détection et de surveillance cinématique de mouvements corporels dans l'eau, et procédé associé
GB2614700A (en) * 2021-12-02 2023-07-19 Swim Smooth Ltd System and method for coaching a swimmer

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JP7458650B2 (ja) * 2018-04-26 2024-04-01 オムニバス １５７ プロプリエタリー リミテッド 泳者のモーションの能力測定基準を系統的に表すためのシステム及び方法

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WO2010113134A1 (fr) 2009-04-02 2010-10-07 Procede Gas Treating B.V. Procédé pour améliorer les performances de procédés d'élimination d'un gaz acide
US20110172549A1 (en) 2010-01-13 2011-07-14 Ravindra Wijesiriwardana Heart rate and an electrocardiogram monitoring system capable of operating under sweaty, high motion and under water environments

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WO2010113134A1 (fr) 2009-04-02 2010-10-07 Procede Gas Treating B.V. Procédé pour améliorer les performances de procédés d'élimination d'un gaz acide
US20110172549A1 (en) 2010-01-13 2011-07-14 Ravindra Wijesiriwardana Heart rate and an electrocardiogram monitoring system capable of operating under sweaty, high motion and under water environments

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10529250B2 (en) 2014-04-29 2020-01-07 Tritonwear Inc. Wireless metric calculating and feedback apparatus, system, and method
US11341864B2 (en) 2014-04-29 2022-05-24 Tritonwear Inc. Wireless metric calculating and feedback apparatus, system, and method
WO2020007802A1 (fr) 2018-07-05 2020-01-09 Politecnico Di Milano Système de détection et de surveillance cinématique de mouvements corporels dans l'eau, et procédé associé
GB2614700A (en) * 2021-12-02 2023-07-19 Swim Smooth Ltd System and method for coaching a swimmer

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Publication number Publication date
CN106455993A (zh) 2017-02-22
ITMI20140136U1 (it) 2015-10-08
EP3128905A1 (fr) 2017-02-15

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