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February 1, 1983Journal of Applied Physiology

Increased cardiovascular response to static contraction of larger muscle groups

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Why the study?

Does the size of the active muscle mass influence the cardiovascular response to static contraction?

Population

12 male subjects

Comparison

Static contraction of larger muscle groups for 3… vs Static contraction of smaller muscle groups and…

Design

Other, randomly assigned order

Follow-up

3 min

Authors

DSDouglas R. SealsRWRichard A. WashburnPHPeter Hanson

Discussion

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Overview

Highlights need to account for muscle mass in cardiovascular monitoring during static exercise; leaves open applicability to patients or dynamic protocols.

Structured PICO

Does the size of the active muscle mass influence the cardiovascular response to static contraction?

P
Population
12 male subjects
I
Intervention
Static contraction of larger muscle groups (two-leg extension, dead-lift maneuver) for 3 min at 30% of maximal voluntary contraction
C
Comparator
Static contraction of smaller muscle groups (one-arm handgrip) and rest
O
Outcome
Cardiovascular response (O2 uptake, heart rate, and mean intra-arterial blood pressure)surrogate

The magnitude of the cardiovascular response to isometric exercise is directly influenced by the size of the contracting muscle mass.

Cite This Study

Seals et al. (1983) studied this question.

synapsesocial.com/papers/6a6f7161e71d69abee08040dhttps://doi.org/10.1152/jappl.1983.54.2.434
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