Int J Sports Med
DOI: 10.1055/a-1337-2998
Physiology & Biochemistry

Effects of Isometric Biceps Exercise on Blood Pressure in Adults with Hypertension

Paulo Henrique Medeiros Silva
1  Graduate Program in Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
,
Leandro Campos de Brito
2  School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
,
3  Graduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
,
4  Graduate Program in Psychobiology, Federal University of Rio Grande do Norte, Natal, Brazil
,
3  Graduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
,
5  NeuroVASQ - Integrative Physiology Laboratory, Faculty of Physical Education, University of Brasilia, Brazil
,
1  Graduate Program in Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
3  Graduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
6  Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
› Author Affiliations

Abstract

We investigated the acute effects of isometric biceps exercise on resting and ambulatory blood pressure in hypertensive adults. A total of 12 medicated hypertensive adults (aged 47±7 years; body mass index 27.2±2.7 kg/m2; resting blood pressure 123±12/74±6 mmHg) performed an isometric biceps exercise session (bilateral biceps exercise; 4×1 min at 30% of 1-RM, 2 min recovery) and a control session (without exercise) in a randomized order separated by a 7 to 10-day period. Resting blood pressure, heart rate, and heart rate variability indexes (SDNN, RMSSD, LF, HF, and LF/HF) were measured pre- and up to 30 min post-sessions. Next, ambulatory blood pressure was monitored during 22-hour post-sessions (awake and asleep periods). No significant changes were observed for resting blood pressure, heart rate, or heart rate variability indexes up to 30 min post-sessions (p>0.05). Furthermore, no significant differences were observed in average ambulatory blood pressure values in 22-hour (126±11/71±6 mmHg vs. 126±15/71±9 mmHg), awake (127±10/74±6 mmHg vs. 130±14/75±10 mmHg), and asleep (123±15/68±6 mmHg vs. 120±17/66±9 mmHg) periods between the control and isometric sessions, respectively (p>0.05). In conclusion, an isometric biceps exercise session does not elicit an acute antihypertensive effect in adults with hypertension, which suggests that its prescription to improve the acute BP control is limited.



Publication History

Received: 07 October 2020

Accepted: 07 December 2020

Publication Date:
22 February 2021 (online)

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