This research project aims to investigate the acute effects of a dance-based cardiac rehabilitation session in the cardiovascular system and autonomic modulation of women with cardiac risk factors. Also, as a secondary outcome, to compare the cardiovascular and autonomic responses of the dance-based session to a conventional exercise-based session.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
20
This session will be composed of: I.10 minutes of initial rest in the supine position; II. 15 minutes of warm-up through stretching and global exercises; III. 30 minutes of treadmill aerobic exercise at an intensity of 60-80% of the heart rate reserve for those without diabetes Mellitus and 40-70% of the heart rate reserve for those diagnosed with diabetes mellitus; IV. 1 minute passive recovery in orthostatic position; V. 30 minutes of passive recovery in the supine position.
I.10 minutes of initial rest in the supine position; II. 15 minutes of warm-up through stretching and global exercises; III. 30 minutes of dance therapy. The intensity of the choreography will be set at the same range as the conventional exercise-based session. (60-80% of the heart rate reserve for those without diabetes Mellitus and 40-70% of the heart rate reserve for those diagnosed with diabetes mellitus); IV. 1 minute passive recovery in orthostatic position; V. 30 minutes of passive recovery in the supine position.
Universidade Estadual Paulista Júlio de Mesquita Filho
Presidente Prudente, São Paulo, Brazil
Heart Rate
The heart rate will be collected using a heart rate monitor (Polar RS800CX - Polar Electro, Kempele, Finland). The data will be assessed at the 5th minute of initial rest, and at the 1st, 2nd, 3rd, 5th, 10th, 20th, and 30th minutes of passive recovery in supine position.
Time frame: Acute evaluation during interventions
Blood Pressure
Evaluated indirectly by an experienced physiotherapist using a stethoscope and a sphygmomanometer. This data will be assessed at he 5th minute of initial rest, and at the 1st, 2nd, 3rd, 5th, 10th, 20th, and 30th minutes of passive recovery in supine position.
Time frame: Acute evaluation during interventions
Peripheral oxygen saturation
Evaluated through a pulse oximeter (Mindray PM-50 Pulse Oximeter, China). This data will be assessed at he 5th minute of initial rest, and at the 1st, 2nd, 3rd, 5th, 10th, 20th, and 30th minutes of passive recovery in supine position.
Time frame: Acute evaluation during interventions
Respiratory Rate
Evaluated by an experienced and independent researcher that will count the number of respiratory incursions within one minute, without the volunteer noticing this procedure. This data will be assessed at he 5th minute of initial rest, and at the 1st, 2nd, 3rd, 5th, 10th, 20th, and 30th minutes of passive recovery in supine position.
Time frame: Acute evaluation during interventions
Autonomic Modulation - rMSSD index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. The rMSSD index corresponds to the root-mean square of differences between adjacent normal RR intervals in a time interval, expressed in milliseconds.
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Time frame: Acute evaluation during interventions
Autonomic Modulation - SDNN index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. The SDNN index corresponds to the standard deviation of all normal RR intervals recorded in a time interval, expressed in milliseconds
Time frame: Acute evaluation during interventions
Autonomic Modulation - LF index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase.The LF index is the low-frequency component of the oscillatory components of heart rate variability, and ranges from 0.04 to 0.15 Hz.
Time frame: Acute evaluation during interventions
Autonomic Modulation - HF index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. The HF index is the high-frequency component of the oscillatory components of heart rate variability, and ranges from 0.15 to 0.4 Hz.
Time frame: Acute evaluation during interventions
Autonomic Modulation - TINN index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. extracted from the density histogram constructed with all normal RR intervals, where the x-axis contains the RR intervals length, and the y-axis contains the frequency of occurrence of the RR intervals. The measure of the histogram base corresponds to the TINN index.
Time frame: Acute evaluation during interventions
Autonomic Modulation - RRtri index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. Extracted from the density histogram constructed with all normal RR intervals, where the x-axis contains the RR intervals length, and the y-axis contains the frequency of occurrence of the RR intervals. The ratio between the histogram area and the modal frequency corresponds to the RRtri index
Time frame: Acute evaluation during interventions
Autonomic Modulation - SD1 index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. The SD1 index corresponds to the dispersion of points perpendicular to the line of identity of the ellipse obtained from the Poincaré plot. Expressed in milliseconds.
Time frame: Acute evaluation during interventions
Autonomic Modulation - SD2 index
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. The SD2 index corresponds to the dispersion of points along the line of identity of the ellipse obtained from the Poincaré plot. Expressed in milliseconds.
Time frame: Acute evaluation during interventions
Autonomic Modulation - Recurrence rate
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. Extracted from the graph reconstruction of the spatial trajectory of the RR interval time series, the recurrence rate corresponds to the ratio of all recurrence states to all possible states.
Time frame: Acute evaluation during interventions
Autonomic Modulation - Determinism
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. Extracted from the graph reconstruction of the spatial trajectory of the RR interval time series, the determinism corresponds to the ratio of recurrence points forming diagonal to all recurrence points.
Time frame: Acute evaluation during interventions
Autonomic Modulation - Sample Entropy
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. Defined as the conditional probability that two sequences similar for n points remain similar at the next point, which indicates the series complexity.
Time frame: Acute evaluation during interventions
Autonomic Modulation - Approximate Entropy
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. Measure the complexity of the series by examining the frequency in which similar epochs occurs.
Time frame: Acute evaluation during interventions
Autonomic Modulation - Detrended fluctuation analysis (DFA)
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. Will be considered the DFA-total, the short-term alpha correlations - considering correlations from 4 to 11 RR intervals, and the long-term alpha correlations - considering 11 to 64 RR intervals.
Time frame: Acute evaluation during interventions
Autonomic Modulation - Symbolic Analysis
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This data will be analyzed in the following time sections: 5th to 10th min of initial rest, from the 5th to the 25th minute of resistance phase (treadmill exercise and dance therapy), and from the beginning to the end of the supine recovery phase. This analysis indicates the quantity and type of variation between 3 consecutive RR intervals, classifying them in the following families: 0V (no variation), 1V (one variation), 2LV (two equal variations), and 2LV (two different variations. Also, will be analyzed the Shannon Entropy that is calculated by quantifying the frequency in which each family appears and summing the relative frequencies weighted by the logarithm of the inverse of the relative frequencies.
Time frame: Acute evaluation during interventions
Heart rate recovery of 1 minute
The heart rate will be collected using a heart rate monitor (Polar RS800CX - Polar Electro, Kempele, Finland). The heart rate recovery of 1 minute (HRR1) will be calculated considering the following formula: HRR1 = HRpeak - HR1, where HRpeak will be determined by the mean of the last five beats registered at the resistance phase, and HR1 will be determined by the mean of the four beats around the heart rate registered exactly after one minute of recovery, two beats before and two beats after this value. This data will be extracted from the 1 minute orthostatic recovery.
Time frame: Acute evaluation during interventions
30-seconds rMSSD
The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. This index will be calculated in the last 30 seconds of the resistance phase (treadmill exercise and dance therapy), and during the one minute of orthostatic passive recovery after the resistance phase.
Time frame: Acute evaluation during interventions