Hemoglobin, hematocrit and plasma volume variations following combined sprint and strength: Effect of advanced age

Sellami, M., Ben Abderrahmen, A., Dhahbi, W., Hayes, Laurence D. and Zouhal, H. (2020) Hemoglobin, hematocrit and plasma volume variations following combined sprint and strength: Effect of advanced age. Science & Sports . Full text not available from this repository.

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Abstract

Summary

Objectives
The study investigated the effect of combined sprint and resistance training (CSRT) on red blood cell (RBC) count, hemoglobin (Hb), hematocrit (Hct), plasma volume (PV) variation at rest and during exercise.

Equipment and methods
Twenty-eight moderately trained were randomly assigned into a young trained (YT), young control (YC), middle-aged trained (MAT), and middle-aged control (MAC) group. Before (P1), and after (P2) CSRT, blood samples were collected at rest and after exercise.

Results
At P1, Hct was significantly (P <.05) greater in young compared to middle-aged groups. At P1, PV decrease during exercise was significantly (P <.05) higher in middle-aged compared to young groups. Following CSRT, resting RBC count and Hb increased significantly (P<.05) in MAT. At P2, Following CSRT, Hct decreased significantly (P<.05) in trained groups. At P2, no significant (P >.05) age-effect between MAT and YT was observed for Hct.

Conclusion
CSRT increases RBC count and Hb in middle-aged men, and ameliorates the effect of age in Hct. Such adaptations may improve cardiovascular fitness of middle-aged individuals, and may be preventative of subsequent declines with age.

Item Type: Article
Journal / Publication Title: Science & Sports
Publisher: Elsevier
ISSN: 07651597
Departments: Health and Medical Sciences
Additional Information: ** Article version: AM ** Embargo end date: 31-12-9999 ** From Elsevier via Jisc Publications Router ** Licence for AM version of this article: This article is under embargo with an end date yet to be finalised. **Journal IDs: issn 07651597 **History: issue date 25-01-2020; accepted 25-10-2019
Depositing User: Insight Administrator
SWORD Depositor: Insight Administrator
Date Deposited: 03 Feb 2020 12:11
Last Modified: 31 Mar 2020 13:35
URI: http://insight.cumbria.ac.uk/id/eprint/5348

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