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Post-exercise blood flow restriction attenuates muscle hypertrophy

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European Journal of Applied Physiology Aims and scope Submit manuscript

Abstract

Purpose

Applying blood flow restriction during low-load resistance training has been shown to augment muscle hypertrophy which has been attributed to metabolic accumulation. It remains unknown, however, whether metabolites can augment muscle growth when maintained post-exercise.

Methods

Thirteen untrained individuals (6 males and 7 females) performed 24 training sessions. The control arm performed one set of elbow flexion (70 % 1RM) to volitional fatigue, while the experimental arm performed the same protocol immediately followed by 3 min of blood flow restriction (70 % arterial occlusion). Muscle growth (ultrasound) was measured at 50, 60, and 70 % of the distance between the lateral epicondyle and acromion process.

Results

Both conditions completed the same exercise volume [3678 (95 % CI 2962, 4393) vs. 3638 kg (95 % CI 2854, 4423)]. There was a condition by time interaction (p = 0.031) demonstrating an attenuation of muscle growth at the 60 % site in the experimental [pre 3.1 (95 % CI 2.8, 3.5), post 3.1 (95 % CI 2.7, 3.5) cm] vs. control [pre 3.1 (95 % CI 2.6, 3.6), post 3.3 (95 % CI 2.8, 3.7) cm] condition. Muscle growth at the 50 % and 70 % sites was similar at the group level, although there were attenuations at the individual level. Exploratory analyses of pre–post mean (95 % CI) changes in muscle thickness suggested that this attenuation in the experimental condition occurred only in females [50 % site 0.0 (−0.2, 0.0) cm; 60 % site −0.1 (−0.3, 0.0) cm; 70 % site 0.0 (−0.1, 0.1) cm].

Conclusions

The application of blood flow restriction post high-load training did not augment muscle growth for either sex, and appeared to attenuate muscle growth among females.

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Abbreviations

1RM:

One-repetition maximum

ANOVA:

Analysis of variance

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Correspondence to Jeremy P. Loenneke.

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None.

Source of funding

This manuscript was partially supported by funding from the BioLayne Foundation (J.P.L and S. J. D.).

Additional information

Communicated by William J. Kraemer.

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Dankel, S.J., Buckner, S.L., Jessee, M.B. et al. Post-exercise blood flow restriction attenuates muscle hypertrophy. Eur J Appl Physiol 116, 1955–1963 (2016). https://doi.org/10.1007/s00421-016-3447-2

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  • DOI: https://doi.org/10.1007/s00421-016-3447-2

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