The Effect of Increasing Blood Flow Restriction Pressure When the Contractions Are Already Occlusive.

Context: Blood flow restricted exercise involves the use of external pressure to enhance fatigue and augment exercise adaptations. The mechanisms by which blood flow restricted exercise limits muscular endurance are not well understood.

Objective: To determine how increasing blood flow restriction pressure impacts local muscular endurance, discomfort, and force steadiness when the contractions are already occlusive.

The impact of acute and chronic resistance exercise on muscle stiffness: a systematic review and meta-analysis.

Purpose: Ultrasound is commonly used to measure changes in skeletal muscle morphology in response to both acute and chronic resistance exercise, but little is known on how muscle stiffness changes via ultrasound elastography, which was the purpose of this systematic review and meta-analysis.

Methods: The online data bases of Pubmed, Scopus, and Web of Science were each searched up until February 2020 and the data were analyzed using a random effects model.

Results: A total of eight studies (four acute and four chronic) met the inclusion criteria for the quantitative analysis.