Characterization of resting and exercise inter-arm differences in SBP to isometric handgrip exercise in males and females
| Autor: | Lance S. Neuscheler, Rachel K. Borland, Brock T. Jensen, Benjamin D H Gordon, Michael E. Holmstrup, Stephanie N. Ace |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Blood Pressure Isometric exercise 030204 cardiovascular system & hematology Assessment and Diagnosis Young Adult 03 medical and health sciences 0302 clinical medicine Internal medicine Hand strength Internal Medicine medicine Humans Aerobic exercise 030212 general & internal medicine Young adult Advanced and Specialized Nursing Hand Strength business.industry Vascular disease Blood Pressure Determination General Medicine medicine.disease Pulse pressure Blood pressure Hypertension Cardiology Female Analysis of variance Cardiology and Cardiovascular Medicine business |
| Zdroj: | Blood Pressure Monitoring. 25:252-258 |
| ISSN: | 1359-5237 |
| DOI: | 10.1097/mbp.0000000000000465 |
| Popis: | A large inter-arm difference (IAD; ≥10 mmHg) in SBP is linked to cardiovascular and peripheral vascular disease, hypertension, and premature mortality. Exercise-induced IAD (eIAD) is related to resting IAD, and acute aerobic activity alters eIAD and reduces IAD in recovery. Isometric handgrip exercise (IHE) affects blood pressure (BP), though the eIAD response to IHE is unknown. Further, the eIAD response may differ between males and females. OBJECTIVES To characterize the eIAD response to IHE in males and females. METHODS On visit 1, participants (16 females and 15 males, aged 18-35 years) completed three maximal voluntary isometric contractions (MVIC) per arm. On visit 2, before IHE, a series of three simultaneous, bilateral BP measures were averaged at rest. During IHE, participants maintained handgrip at 20% of MVIC for 2 minutes (arm randomly assigned), at which time bilateral BP was measured (IHE) during exercise and subsequent recovery (REC1 and REC2). Repeated-measures analysis of variance assessed eIAD and SBP (time × sex). RESULTS IHE increased absolute eIAD (4 mmHg). Differences in relative eIAD were observed at IHE and REC2 based on resting IAD status (P < 0.05). Females only had an exaggerated SBP and pulse pressure response in the working arm. CONCLUSION Acute IHE was shown to augment eIAD. Further eIAD and resting IAD were related. Acute IHE induced different bilateral responses between males and females, though the impact of sex on eIAD warrants further investigation. Future studies should address the effects of repeated bouts of IHE, which may benefit individuals with a large resting IAD. |
| Databáze: | OpenAIRE |
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