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Maximal isometric strength indices are associated with the oxygen cost of walking and running in recreationally active men and women.
- Source :
- Research in Sports Medicine; Sep/Oct2022, Vol. 30 Issue 5, p540-553, 14p, 4 Charts
- Publication Year :
- 2022
-
Abstract
- This study assessed the associations of maximal isometric strength and movement economy in 126 recreationally active men and women. Oxygen consumption was assessed through a graded treadmill test with 4-minute increments (4–12 km∙h<superscript>−1</superscript>). Maximal isometric leg extensor, leg flexor and handgrip strength were assessed by isometric dynamometry. Models of best fit for gross oxygen cost and gross caloric unit cost were observed across the majority of velocities when the leg extensor/flexor strength ratio and handgrip strength were combined (R<superscript>2</superscript> = 0.207–0.525 and R<superscript>2</superscript> = 0.152–0.475, respectively). Additionally, the oxygen cost differed statistically for the majority of velocities when participants were split by the median of leg extensor strength (12.3–26.3 ml∙kg<superscript>−1</superscript>∙km<superscript>−1</superscript>, p < 0.05) and the average of all strength variables (13.9–30.3 ml∙kg<superscript>−1</superscript>∙km<superscript>−1</superscript>, p < 0.05). Our data underline the importance of maintaining maximal strength in order to perform activities with low to moderate oxygen demands. [ABSTRACT FROM AUTHOR]
- Subjects :
- ENERGY metabolism
ISOMETRIC exercise
EXERCISE tests
GRIP strength
BODY composition
RUNNING
MUSCLE contraction
OXYGEN consumption
CARDIOPULMONARY system
CROSS-sectional method
RECREATION
PHYSICAL activity
WALKING
MUSCLE strength
EXERCISE intensity
QUESTIONNAIRES
BIOELECTRIC impedance
DATA analysis software
Subjects
Details
- Language :
- English
- ISSN :
- 15438627
- Volume :
- 30
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Research in Sports Medicine
- Publication Type :
- Academic Journal
- Accession number :
- 158260308
- Full Text :
- https://doi.org/10.1080/15438627.2021.1917404