Apparatus and method for improving training threshold
First Claim
1. A method comprising:
- emitting, at predetermined times, a radiation into a tissue of a subject;
detecting, at corresponding predetermined times, a radiation emitted from the tissue of the subject;
calculating, based on the detected radiation, an oxygenation parameter, at each of the corresponding times, of the tissue of the subject;
processing, by one or more processors, the oxygenation parameter to generate one of a substantially real-time lactate curve or ventilatory curve, which is based on one or more signal features of the oxygenation parameter, wherein the oxygenation parameter comprises at least one of concentration of oxygenated hemoglobin, and concentration of deoxygenated hemoglobin, total concentration of hemoglobin, and Tissue Oxygenation Index;
determining whether the lactate curve substantially contains a lactate threshold of the subject or the ventilatory curve substantially contains a ventilatory threshold of the subject; and
providing an alert based on the determination that lactate curve substantially contains a lactate threshold or the ventilatory curve substantially contains a ventilatory threshold of the subject;
wherein the one or more signal features comprises;
a first signal feature comprising a oxygenation parameter value during an exercise stage;
a second signal feature comprising a change in the oxygenation parameter value;
a third signal feature comprising a rate of change in the oxygenation parameter value;
a fourth signal feature comprising a scale of change in the oxygenation parameter value.
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Abstract
The present invention generally relates to a non-invasive biosensor device configured to measure physiological parameters of a subject. In one aspect, a method of determining a training threshold of a subject is provided. The method includes the step of detecting an oxygenation parameter of a tissue of the subject using Near InfraRed Spectroscopy (NIRS). The method further includes the step of processing the oxygenation parameter. Additionally, the method includes the step of determining the training threshold of the subject using the result of the processing. In another aspect, a biosensor device for determining a lactate threshold of a subject during exercise is provided. In a further aspect, a biosensor device for measuring parameters of a subject during exercise is provided.
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Citations
22 Claims
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1. A method comprising:
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emitting, at predetermined times, a radiation into a tissue of a subject; detecting, at corresponding predetermined times, a radiation emitted from the tissue of the subject; calculating, based on the detected radiation, an oxygenation parameter, at each of the corresponding times, of the tissue of the subject; processing, by one or more processors, the oxygenation parameter to generate one of a substantially real-time lactate curve or ventilatory curve, which is based on one or more signal features of the oxygenation parameter, wherein the oxygenation parameter comprises at least one of concentration of oxygenated hemoglobin, and concentration of deoxygenated hemoglobin, total concentration of hemoglobin, and Tissue Oxygenation Index; determining whether the lactate curve substantially contains a lactate threshold of the subject or the ventilatory curve substantially contains a ventilatory threshold of the subject; and providing an alert based on the determination that lactate curve substantially contains a lactate threshold or the ventilatory curve substantially contains a ventilatory threshold of the subject; wherein the one or more signal features comprises; a first signal feature comprising a oxygenation parameter value during an exercise stage; a second signal feature comprising a change in the oxygenation parameter value; a third signal feature comprising a rate of change in the oxygenation parameter value; a fourth signal feature comprising a scale of change in the oxygenation parameter value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A biosensor device comprising:
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a housing; an emitter disposed in the housing;
the emitter configured to emit, at predetermined times, radiation into a tissue of a subject;a detector disposed in the housing, the detector being configured to detect, at corresponding predetermined times, a radiation emitted from a tissue of a subject and calculate a corresponding oxygenation parameter, at each of the corresponding predetermined times, of a tissue of the subject; a processor configured to process the oxygenation parameter to generate a substantially real-time lactate curve or ventilatory curve, which is based on one or more signal features of the oxygenation parameter and determine whether the lactate curve substantially contains a lactate threshold of the subject or the ventilatory curve substantially contains a ventilatory threshold of the subject; and a communication module configured to provide an alert based on the determination that the lactate curve contains a lactate threshold of the subject or the ventilatory curve substantially contains a ventilatory threshold of the subject; wherein the oxygenation parameter comprises at least one of concentration of oxygenated hemoglobin, and concentration of deoxygenated hemoglobin, total concentration of hemoglobin, and Tissue Oxygenation Index, and wherein the one or more signal features comprises; a first signal feature comprising a oxygenation parameter value during an exercise stage; a second signal feature comprising a change in the oxygenation parameter value; a third signal feature comprising a rate of change in the oxygenation parameter value; a fourth signal feature comprising a scale of change in the oxygenation parameter value. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A biosensor system for measuring parameters of a subject during exercise, the system comprising:
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the biosensor device comprising; a housing; an emitter disposed in the housing;
the emitter configured to emit, at predetermined times, radiation into a tissue of a subject;a detector disposed in the housing, the detector being configured to detect, at corresponding predetermined times, a radiation emitted from a tissue of a subject and calculate a corresponding oxygenation parameter, at each of corresponding times, of the tissue of the subject; a secondary device comprising; a receiver configured to receive data from the biosensor device; a processor configured to process the data to generate a substantially real-time lactate curve or ventilatory curve, which is based on one or more signal features of the oxygenation parameter and determine whether the lactate curve substantially contains a lactate threshold of the subject or the ventilatory curve substantially contains a ventilatory threshold of the subject; and a communication module configured to provide an alert based on the determination that the lactate curve contains a lactate threshold of the subject or the ventilatory curve substantially contains a ventilatory threshold of the subject; wherein the oxygenation parameter comprises at least one of concentration of oxygenated hemoglobin, and concentration of deoxygenated hemoglobin, total concentration of hemoglobin, and Tissue Oxygenation Index, and wherein the one or more signal features comprises; a first signal feature comprising a oxygenation parameter value during an exercise stage; a second signal feature comprising a change in the oxygenation parameter value; a third signal feature comprising a rate of change in the oxygenation parameter value; a fourth signal feature comprising a scale of change in the oxygenation parameter value. - View Dependent Claims (21, 22)
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Specification