Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Jan 21;11:609935. doi: 10.3389/fphys.2020.609935

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 Weaver, Skinner, Furlong, Lucas, Cable, Rendeiro, McGettrick and Lucas.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Blood plasma samples were taken during seated rest (Rest); immediately after the first interval exercise bout (Ex 1; HIIT and SIT only); at the end of exercise (Ex 4, end of active recovery (Active); and the end of passive recovery (Passive). Brain-derived neurotrophic factor (BDNF; n = 21), insulin-like growth factor 1 (IGF-1; n = 17), and vascular endothelial growth factor [VEGF; n = 15 (14 in SIT)] were analyzed by ELISA. Blood lactate [n = 24 (23 in SIT)] was analyzed using automated photometric analysis. Data are presented as mean ± SD. Significance (analyzed by linear mixed model, p < 0.05) between resting values and subsequent time points is denoted by *. Significant differences between protocols are denoted by ^$ between MICT and HIIT; ^† between MICT and SIT; and ^Ω between HIIT and SIT. ND, not determined.