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Hemoglobin Concentrations Predict Physical Function After A 12-Week Resistance Exercise Training and Subsequent Changes After 11 Months of Follow-Up Among Community Dwelling Older Adults

Hemoglobin Concentrations Predict Physical Function After A 12-Week Resistance Exercise Training and Subsequent Changes After 11 Months of Follow-Up Among Community Dwelling Older Adults


Title: Hemoglobin Concentrations Predict Physical Function After A 12-Week Resistance Exercise Training and Subsequent Changes After 11 Months of Follow-Up Among Community Dwelling Older Adults
Author: Chang Gudjonsson, Milan   orcid.org/0000-0002-3556-3810
Geirsdóttir, Ólöf G.
Briem, Kristin   orcid.org/0000-0002-0606-991X
Jónsson, Pálmi V.
Thorsdottir, Inga   orcid.org/0000-0002-2946-287X
Ramel, Alfons
Date: 2018-12
Language: English
University/Institute: Háskóli Íslands
University of Iceland
School: Menntavísindasvið (HÍ)
School of Education (UI)
Heilbrigðisvísindasvið (HÍ)
School of Health Sciences (UI)
Department: Deild heilsueflingar, íþrótta og tómstunda (HÍ)
Faculty of Health Promotion, Sport and Leisure Studies (UI)
Matvæla- og næringarfræðideild (HÍ)
Faculty of Food Science and Nutrition (UI)
Læknadeild (HÍ)
Faculty of Medicine (UI)
Series: Journal of Gerontology & Geriatric Research;7(6)
ISSN: 2167-7182
DOI: 10.4172/2167-7182.1000492
Subject: Hemoglobin; Resistance exercise intervention; Physical function; Blóðrannsóknir; Hreyfing (heilsurækt)
URI: https://hdl.handle.net/20.500.11815/1837

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Citation:

Chang Milan, Geirsdottir Olof G, Briem Kristin, Jonsson Palmi V, Thorsdottir Inga, Ramel Alfons, Hemoglobin concentrations predict physical function after a 12-week resistance exercise training and and subsequent changes after 6 -18 months of follow-up in community-dwelling old adults in Iceland, Journal of Gerontology & Geriatric Research, Dec, 2018, Vol 7(6): 492. DOI: 10.4172/2167-7182.1000492

Abstract:

Background: Hemoglobin transports oxygen in blood yet its concentrations generally decrease with age. The aim of the study was to examine whether hemoglobin is connected with physical function in older age people. Design: Intervention study. Setting: Community. Participants: Older adults (N=236, 73.7±5.7 years, 58.2% female). Intervention: A 12-week resistance exercise program (3 times/week; 3 sets, 6-8 repetitions at 75-80% of the 1-repetition maximum) was conducted to increase strength and muscle mass of major muscle groups. Measurements: Anthropometrics, muscle strength, timed up and go (TUG in sec), six-minute walking distance (6MWD in m) and blood chemical variables were measured at baseline, endpoint and after 10.7 months followup. The linear regression model was used to examine the association between baseline hemoglobin and physical function outcome. Results: Only about 4% of the participants were anemic. According to calculations baseline hemoglobin was associated with TUG (0.14 to 0.36 sec improvement by 10 g/L increase of hemoglobin) at all-time points, even though this was of borderline significance for baseline (p=0.57) and endpoint (p=0.062). Hemoglobin also predicted endpoint 6 MWD (4.88m), but not at baseline (follow up 6 MWD was not available). Statistical correction for compliance did not influences results. Conclusion: Hemoglobin is positively associated to physical function in community dwelling old aged people. Additionally, we found that baseline hemoglobin is associated to adaptions to 12-week resistance exercise training and changes in physical function during the follow-up.

Rights:

© 2018 Gudjonsson MC, et al. 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.

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