Effects of lower body positive pressure on cardiovascular responses during walking in elderly women
Language English Country Czech Republic Media print-electronic
Document type Controlled Clinical Trial, Journal Article
PubMed
23869890
DOI
10.33549/physiolres.932459
PII: 932459
Knihovny.cz E-resources
- MeSH
- Lower Body Negative Pressure methods MeSH
- Gait physiology MeSH
- Walking physiology MeSH
- Adult MeSH
- Blood Pressure physiology MeSH
- Middle Aged MeSH
- Humans MeSH
- Young Adult MeSH
- Aged MeSH
- Heart Rate physiology MeSH
- Physical Exertion physiology MeSH
- Exercise Test MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Young Adult MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Controlled Clinical Trial MeSH
This study was undertaken to investigate the effects of lower body positive pressure (LBPP) on cardiovascular responses during a 15-min walking trial in young (22.1+/-0.4 years) and elderly women (67.8+/-1.1 years). The application of 20 mm Hg LBPP reduced ground reaction forces by 31.2+/-0.5 kgw in both groups. We hypothesized that cardiovascular responses to LBPP during walking were different between the young and elderly subjects. Applying 20 mm Hg of LBPP increased diastolic and mean blood pressure but not systolic blood pressure in both groups. LBPP-induced reduction in heart rate (HR) occurred more quickly in the young group compared to the elderly group (p<0.05). Applying LBPP also decreased double product (systolic blood pressure x HR) in both groups, suggesting that LBPP reduces myocardial oxygen consumption during exercise. These results suggest that heart rate responses to LBPP during exercise vary with increasing age.
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