ISSN: 1899-1955
Human Movement
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2/2021
vol. 22
 
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abstract:
Original paper

Comparison and association of acute physiological and posturographic effects in four exercises on stable and unstable surfaces with or without partial blood flow restriction

Carlos Bahamondes-Avila
1
,
Felipe Ponce-Fuentes
1
,
Claudio Hernández-Mosqueira
2
,
Luis Bustos-Medina
3
,
Luis Antonio Salazar Navarrete
4
,
Francisco José Berral de la Rosa
5

1.
Escuela de Kinesiología, Facultad de Ciencias, Universidad Mayor, Temuco, Chile
2.
Department of Physical Education, Sports and Recreation, Universidad de La Frontera, Temuco, Chile
3.
CIGES Centre of Excellence, Department of Public Health, Universidad de La Frontera, Temuco, Chile
4.
Centre of Molecular Biology and Pharmacogenetics, Universidad de La Frontera, Temuco, Chile
5.
Department of Sport and Information, Pablo de Olavide University, Seville, Spain
Hum Mov. 2021;22(2):78–86
Online publish date: 2020/11/15
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Purpose
Prior research has shown that running squats on unstable surfaces may be useful in increasing antagonist muscle and body centre activity; nonetheless, the evidence for improved muscle strength-power is contradictory. In parallel, low-intensity strength training with partial blood flow restriction is effective in developing strength, hypertrophy, and muscular endurance. Combining both modalities could complement the benefits of exercising on unstable surface. Our objective was to compare the acute effects of 4 exercise types with or without partial blood flow restriction under stable and unstable conditions.

Methods
Seven volunteers performed 4 protocols: exercises with high-intensity overload and stable conditions, low-intensity overload with blood flow restriction and stable conditions, unstable conditions without blood flow restriction, and unstable conditions with blood flow restriction. At the beginning, end, and recovery of each protocol, physiological variables were measured: heart rate, subjective perception of effort, blood lactate, and posturographic variables (total distance with eyes open and closed).

Results
Exercises with stable surfaces generated greater physiological stress than both exercises on unstable surfaces. Furthermore, incorporating blood flow restriction into unstable exercise allowed an increase in the physiological demand without altering postural balance. There were only significant changes in postural balance in the high-intensity protocol with stable conditions.

Conclusions
Exercises combining partial blood flow restriction on stable and unstable surfaces increase the physiological demands without altering postural balance compared with high-intensity exercise on a stable surface.

keywords:

Kaatsu, unstable exercise, stable exercises, blood flow restriction, training, posturographic variables

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