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Does the combination of resistance training and stretching increase cardiac overload?

Overview of attention for article published in Clinics, August 2019
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Title
Does the combination of resistance training and stretching increase cardiac overload?
Published in
Clinics, August 2019
DOI 10.6061/clinics/2019/e1066
Pubmed ID
Authors

Gabriel Costa e Silva, Roberto Simão, Rodrigo Rodrigues da Conceição, Pablo B. Costa, Humberto Miranda, Rodolfo Rodrigues da Conceição, Roberto L Almeida, Mônica Akemi Sato

Abstract

To compare the effects of combinations of resistance training (RT) and static stretching (SS) on heart rate (HR), systolic pressure (SBP), diastolic pressure (DBP), rate pressure product (RPP), oxygen saturation (SpO2), rating of perceived effort (RPE), and heart rate variability (HRV) in men. Twelve normotensive healthy men participated in four protocols: a) SS+RT, b) RT+SS, c) RT, and d) SS. Variables were measured before, immediately after, and 15, 30, and 45 min after the sessions. The combination of SS and RT increased (p<0.001) HR when compared to the effects of the noncombined protocols (from 2.38 to 11.02%), and this result indicated metabolic compensation. Regarding DBP, there were differences (p<0.001) between the RT and SS groups (53.93±8.59 vs. 67.00±7.01 mmHg). SS has been shown to be able to reduce (p<0.001) SpO2 (4.67%) due to the occlusion caused by a reduction in the caliber of the blood vessels during SS compared to during rest. The increase in RPP (6.88% between RT and SS+RT) along with the HR results indicated higher metabolic stress than that reflected by the RPE (combined protocols increased RPE from 21.63 to 43.25%). The HRV analysis confirmed these results, showing increases (p<0.01) in the LF index between the combined and noncombined protocols. Compared to the effect of RT, the combination of SS and RT promoted a vagal suppression root mean square of the successive differences (RMSSD) index (from 9.51 to 21.52%) between the RT and SS+RT groups (p<0.01) and between the RT and RT+SS groups (p<0.001). Static stretching increases cardiac overload and RPE, reducing oxygen supply, especially when performed in combination with RT.

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Mendeley readers

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Geographical breakdown

Country Count As %
Unknown 36 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 10 28%
Student > Master 7 19%
Professor 3 8%
Student > Postgraduate 2 6%
Student > Doctoral Student 2 6%
Other 5 14%
Unknown 7 19%
Readers by discipline Count As %
Sports and Recreations 11 31%
Medicine and Dentistry 6 17%
Nursing and Health Professions 6 17%
Social Sciences 1 3%
Psychology 1 3%
Other 2 6%
Unknown 9 25%