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Effectiveness of physical activity orientation for hypertensive patients by physical educator or doctor – randomized

Research Article | DOI: https://doi.org/10.31579/IJCM.2022/004

Effectiveness of physical activity orientation for hypertensive patients by physical educator or doctor – randomized

  • Cristianne Confessor Castilho Lopes 1*
  • Paulo Sergio Silva 2
  • Tulio Gamio Dias 3
  • Daniela dos Santos 4
  • Eduardo Barbosa Lopes 4
  • Marivane Lemos 5
  • Marilda Morais da Costa 6
  • Lucas Castilho Lopes 7
  • Vanessa da Silva Barros 3
  • Lucas Bottesini dos Santos 4
  • sabela Lara Marcondes 4
  • Nathan da Silva 4
  • Sthefany Thais Deuner Meincke 4
  • João Vitor Bertuci 4
  • Roberto Flores Amaral 4
  • Katherinne Barth Wanis Figueiredo 8
  • Leandro Vinicius Bealuka 9
  • Fabio Kopp Vanuzzi 10
  • Fábio Herget Pitanga 4
  • Liamara Basso Dala Costa 4
  • Helbert do Nascimento Lima 1
  • Anderson Ricardo Roman Gonçalves 1

1 University of Joinville Region - Joinville – SC

2 UniSociesc - Joinville – SC

3 USP School of Arts, Sciences and Humanities – São Paulo – SP       

Alto Vale do Rio do Peixe University - Caçador – SC

Contestado University Concordia - SC – Brazil

6 Lutheran Educational Association - Faculty IELUSC - Joinville – SC

Federal University of Santa Catarina - Florianópolis – SC

8 Hans Dieter Schmidt Regional Hospital - Joinville – SC

9 Unisul – Tubarão – SC

10 Federal University of Rio de Janeiro - Rio de Janeiro - RJ

*Corresponding Author: Cristianne Confessor Castilho Lopes, University of Joinville Region - Joinville – SC.

Citation: Cristianne Confessor Castilho Lopes, (2022). Effectiveness of physical activity orientation for hypertensive patients by physical educator or doctor – randomized. J. International Journal of Cardiovascular Medicin. 2(1); DOI: 10.31579/IJCM.2022/004

Copyright: © 2022 Cristianne Confessor Castilho Lopes, this is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

Received: 08 April 2022 | Accepted: 22 May 2022 | Published: 07 June 2022

Keywords: Adherenc; Physical Activit; Hypertension

Abstract

Physical activity (PA) decreases blood pressure in hypertensive patients (PT). Objective: evaluate PA oriented by physical educator (PE) against physician-oriented PA. Methods: 59 pt aged ≥ 50 y.o. were randomized and PE oriented (31, GEF) or physician oriented (GC, 28). Re-evaluated at 3 and 6 m. Results: 21 (36%) male, age 64.4±9.5 y.o, weight 79.1±18.7 kg, abdominal circumference (CAbd) 103±12 cm, total body fat (GCT) 32±6%, 6 minutes treadmill test (TE) 317±115m, systolic blood pressure (PAS) 134±15 mmHg. At 3 and 6 m there were decrease in CAbd and GCT in the total sample, increase in the TE distance in the total sample and GEF, as well a decrease in the PAS in the total sample. Despite both groups showed a numeric increase in the TE distance, the paired analysis favored GEF. The self-related PA, through IPAQ, revealed an increase in the energy expenditure and a decrease in the seated time in the total sample, as well a increase in the intensity of PA and weekly energy expenditure in the GEF. Conclusion: EF oriented PA has better performance in hypertensive patients.

Introduction

The practice of physical activity (PA) is associated with greater longevity, welfare, prevention, and disease treatment, among them systemic arterial hypertension (SAH) [1].  The realization of exercise reduces blood pressure (BP) in hypertension [2]. In Brazil, there are approximately 30 million people with SAH, most of them are unaware of the disease and most of them do not know and have not been treated for their disease [3]. Promoting PA consistently and lasting in these patients is a challenge. Several techniques and strategies have been adopted, seeking to increase membership, from motivational lectures to public academies5 and programs such as the National Program for the Promotion of Physical Activity “Agita Brasil [16] However, the involvement of professionals, such as physical educators (PE) and the effectiveness of these programs is unclear. 

 For hypertensive patients, exercise guidance is almost exclusive to the medical professional, approximately, 92% of advice related to the practice of exercises [8]. The PE is trained for guidance with less risk of injury, seeks to minimize barriers, observe the intensity, duration and frequency of exercises, avoiding possible muscle and joint injuries, being able to make a PA program more effective and facilitate adherence. There are no studies evaluating the role of PE in improving adherence to PA compared to traditional medical advice. The present study aims to compare, in a randomized way, the efficiency of PE or physician guidance in aerobic performance and in reported PA.

Methods

For this cohort, randomized and prospective study, lasting 6 months, hypertensive patients were invited hypertensive patients, without contraindication for the performance of PA, of both genders, aged 50 years or more, treated at the nephrology clinic at Univille, Joinville - SC. Randomization resulted in an oriented group - PE (GPE) and a control group (CG), guided by doctors. Exclusion criteria were: inability to carry out the proposed activities, inability to understand the free and informed consent term or the guidelines provided, physical or clinical conditions that prevent or have contraindications to performing PA, such as decompensated heart failure or unstable angina pectoris, age < 50>

For further analysis, the activity level was categorized into three intensity strata: low, moderate or high, according to the value of MET-minutes/week –[45].

Briefly, the combination of any walking activity, of moderate intensity or vigorous, with values ​​above 600 and below 3000 MET-minutes / week was classified as moderate, and values ​​above 3000 MET-minutes/week were classified as vigorous [45].Low intensity was defined when it did not reach the values ​​for the other categories. Randomization was performed using an electronic spreadsheet, with a random function. The PEG was guided by the PE (P.S.S), received explanatory material printed with photos of exercises that could be performed in the residence or in public squares with outdoor gym equipment in Joinville-SC; these are called best age gyms (BAG), still a video of the same exercises, in compact disc format.

Guidance included which exercises to perform, the correct mode of execution, intensity and frequency. Based on the research subject's address, the PE suggested which BAG would be the closest to their home, using the home distance - BAG as a walk.

The exercises followed an order from the upper limb to the lower limb, seeking to avoid fatigue. For each of the exercises, fifteen repetitions were suggested in a sequence of 3 sets and a minimum frequency of 3 times a week, with a maximum of 5 times a week. At the end of the daily activities, a light stretching was recommended. For the performance at home, functional exercises were chosen using the body's own weight or, at most, 1 kg (suggested use of bagged foods of 1 kg) to provide light resistance. The use of simple features from the structure of the house was suggested, such as steps, chair and door. The CG was guided by the physicians (A.R.R.G.; H.N.L.), based on the PA guidelines recommended by the VI Brazilian guidelines on hypertension, which basically indicate 30 minutes of moderate PA continuously or accumulated, at least five times a week11.  The main activities stimulated were walking and the use of BAG equipment, available in various parts of the city. The initial assessment was repeated at the 3rd and 6th month, except for the IPAQ, which was repeated only at the end of the study. This project was approved by the Research Ethics Committee of Univille, University of the Region of Joinville, opinion 094/2012.The total sample was evaluated in evolution, and the groups were compared to each other at baseline, 3 months and 6 months. For categorical variables, the chi-square method and the marginal homogeneity test for paired data (baseline, 3 and 6 months, in the same group) were used. Data with normal distribution were analyzed by Student's t test, while data with non-normal distribution were analyzed by Mann-Whitney test and Wilcoxon test when samples were paired (baseline, 3 and 6 months, in the same group). the comparison evolution between groups for variables weight, BMI, CAbd, TCG, distance covered in the TE, blood pressure (for analysis, only systolic blood pressure, SBP was used) and PA scores (IPAQ), were compared using the general linear model of repeated measures. All tests were performed using SPSS software version 17.0 (Chicago, Ill). For the analysis of the TCG, individuals with a BMI above 35 kg/m2 were excluded. In the tables, the results will be expressed as “p paired” when compared evolutionarily in the same group and “p paired between groups” to compare the evolution between groups. P values ​​less than 0.05 were considered significant.

Results

From a total of 69 patients invited, 63 agreed to participate and were randomized into 34 PGE and 29 CG. Not appearing for the final analysis, and 1 patient from the CG who suffered a stroke during the study and 3 patients from the PGE (1 death and 2 dropouts) were excluded from the study. In the resulting total sample, 21 were male (36%), with mean age 64.4±9.5 years, weight 79.1±18.7 kg, BMI 31.3±7.1 kg/ m2, CAbd 103±12 cm TCG 32±6%, TE 317±115m, SBP 134±15 mmHg. When separated into groups after randomization, there were no significant differences between the studied variables, as shown in table 1. Within a period of 3 months, 55 patients were re-evaluated (4 did not appear for this evaluation, 3 from the PGE and 1 from the CG). It was possible to observe a reduction in the CAbd in the PGE, a reduction in the TCG in the total sample and in both groups, with no evolutionary difference between them; increase in distance covered in TE in the total sample and both groups, with a greater difference in the PGE compared to the CG, as shown in the evolutionary graph and reduction in SBP in the total sample and in both groups, with no evolutionary difference between groups (Table 1).

Evolutionary chart Test treadmill OS and C group (baseline, 3 and 6 months)
Table 1: Epidemiological and parametric variables by period and by group.
a p evolutionary pair of 0 and 3 months < 0>

At the end of 6 months, 59 patients were re-evaluated. An evolutionary analysis of 0, 3 and 6 months showed results similar to those of 3 months, such as a reduction in CAbd of the total sample and of both groups, reduction in TCG in the total sample and in both groups, increase in the distance covered in the TE in the total sample and in both groups, and reduction in SBP in the total sample and both groups. Although both groups increased the distance walked in the ET at 3 and 6 months, this was the only evolutionary difference between them, favoring the PGE (Table 1).A significant number of patients reported performing activities of moderate or high intensity in the baseline period (78% of the sample), a value that increased even more after 6 months in the total sample (83%, p<0 xss=removed>p<0>

Table 2: Physical Activity scores grouped by domain, period and by group and categorized into IPAQ physical activity intensity
Results presented as median and interquartile range, in MET-minutes/week. # Result in n (%) a. p pair evolutionary baseline and 6 months < 0 xss=removed>05; b p pair evolutionary OG vs CG < 0>

Discussion

Promoting consistent PA in hypertensive patients is possible, as demonstrated in the present study. Even after 6 months, the evaluated parameters indicated a consistent increase in PA. When the activity orientation is carried out by PE, the effectiveness is greater. These results are relevant, as it is possible to imagine that the adoption of a similar approach in public health services could have an impact on the reduction of cardiovascular events, by promoting a reduction in blood pressure. In Brazil, it is estimated that about 52% of individuals with SAH are aware of the diagnosis of the disease. Of these, about 35% are treated and only 13.7

Conclusion

The results of this study allow us to conclude that it is possible to promote physical activity with a lasting effect in hypertensive patients. Both methods had positive results, but the results are better when the orientations are carried out in a systematic way by a physical educator, especially regarding aerobic capacity. Additional, long-term studies using cardiovascular events as endpoints are needed.

References

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