Method and system for evaluation and monitoring of muscle hemodynamic performance during a cyclical locomotor activity

A monitoring and evaluating system of the physical performance of one subject that comprises:

• two or more near infrared sensors (NIRS);
• a heart rate device;
• an activity monitoring device;
• a locomotive intensity meter;
• and
• a data processing system connected to the two or more near infrared sensors (NIRS), the heart rate device, the activity monitoring device and the locomotive intensity meter and configured to carry out the steps of:
• placing or adhering the NIRS sensors on muscle tissues (TM) to be evaluated, place the heart rate device on a subject's chest, place the activity monitoring device and the locomotive intensity meter on the subject;
• activating the devices for measuring data, during locomotive activity to be evaluated and sending data measured to a data processing system;
• recording, through the data processing system, the data measured, during the development of at least one Cyclical Locomotive-Physical Activity (AFC), wherein:
• the Cyclical Locomotive-Physical Activity Monitored (AFCM) is continuous or interval,
• the activity monitoring device records the entire time scale from the beginning to the end of the AFCM, including multiple work intervals and/or rest intervals, the recording frequency of the data for each device is less than 6 seconds, the AFCM is stable, incremental, decreasing or variable locomotor intensity or a combination of them,
• the AFCM includes a period of previous warm-up,
• when the AFCM does not include at least one Rest interval (ID), the data recording will end 1 minute after the AFC ceases and that minute will be counted as an Rest interval (ID),
• a Locomotor Work Intensity (INTTL) or an average Locomotor Work Intensity Range (R-INTTL)), obtained from the Cyclical Locomotive-Physical Activity Monitored (AFCM), is greater than or equal to a Minimum Activation Threshold (UAmin), previously defined;
• obtaining at least the following monitored data from the devices for measuring with a respective temporary registration:
• Muscular Oxygen Saturation (SmO2%) and Absolute Capillary Hemoglobin (ThB) of each of the monitored muscle tissues (TMM) that participate in AFCM, through the NIRS devices,
• Heart rate (HR), through the heart rate device,
• Power, Running Speed, through the locomotive intensity meter,
• time record or timescale of the AFCM, with all the time records of the start or end of AFCM, and the start and end of the different intervals developed during the AFCM, through the locomotive activity meter, and
• cadence or acceleration, through external locomotor performance devices,
• synchronizing, linking and joining the monitored data obtained in a single time scale of joint data from the time scale collected by the activity monitoring device during the AFCM and the time record of each of the devices for measuring, through the data processing system;
• calculating, through the data processing system, at least following values for each Monitored Muscle Tissue (TMM) that participates in the AFCM from the recorded data of SmO2% and ThB of:
• Oxygen-Charged Capillary Hemoglobin−g/dL (O2HHb), through the formula:
• SmO2*ThB=O2HHb
• Oxygen Discharged Capillary Hemoglobin−g/dL (HHb), through the formula:
• ThB−O2HHb=HHb
• Muscle Blood Flow of Muscle Hemoglobin−g/dL/s (ΦThB), through the formula:
• [ThB*HR]/60=ΦThB
• Muscular Blood Flow of Oxygen Charged Hemoglobin-g/dL/s (ΦO2HHb), through the formula:
• [O2HHb*HR]/60=ΦO2HHb
• Muscular Blood Flow of Oxygen Discharged Hemoglobin−(ΦHHb), through the formula
• [Hb*HR]/60=ΦHHb
• filtering and excluding, through the data processing system, the data obtained erroneously and/or due to registration error by devices during AFCM;
• filtering and excluding, through the processing system, the values that are not within the following ranges, as well as data obtained by using them:
• SMO2%:
• Between 1% SmO2 and 99% SmO2;
• ThB:
• Between 9.5 g/dL and 14.9 g/dL;
• HR:
• Between 40 bpm and 230 bpm;
• and
• filtering and excluding, through the processing system:
• values whose difference between two temporary sequential records, is greater than the following parameters, and the data obtained from said values:
• Difference of SmO2%>±10% SmO2%;
• Difference of ThB>±0.3 g/dL;
• Difference of HR>±7 bpm.