A1 Journal article (refereed)
Active recovery shows favorable IGF-I and IGF binding protein responses following heavy resistance exercise compared to passive recovery (2019)


Taipale, R. S.; Gagnon, S. S.; Ahtiainen, J. P.; Häkkinen, K.; Kyröläinen, H.; Nindl, B.C. (2019). Active recovery shows favorable IGF-I and IGF binding protein responses following heavy resistance exercise compared to passive recovery. Growth Hormone and IGF Research, 48-49, 45-52. DOI: 10.1016/j.ghir.2019.09.001


JYU authors or editors


Publication details

All authors or editors: Taipale, R. S.; Gagnon, S. S.; Ahtiainen, J. P.; Häkkinen, K.; Kyröläinen, H.; Nindl, B.C.

Journal or series: Growth Hormone and IGF Research

ISSN: 1096-6374

eISSN: 1532-2238

Publication year: 2019

Volume: 48-49

Pages range: 45-52

Publisher: Elsevier Ltd

Publication country: United Kingdom

Publication language: English

DOI: http://doi.org/10.1016/j.ghir.2019.09.001

Open Access: Publication channel is not openly available


Abstract

IGF-I and IGFBPs have important physiological modulatory effects and this study sought to examine the influence of active vs. passive recovery following a heavy resistance exercise on IGF-I and IGF binding protein (IGFBP) recovery responses. It was hypothesized that increased IGF-I and decreased inhibitory IGFBPs during active recovery may be reflective of cascades promoting physiological recovery. 18 untrained men ((AR n = 7, PR n = 11), age: 26 ± 4 years, height: 174 ± 8 cm, body mass: 75 ± 13 kg) performed either a protocol-specific 10 × 10 × 30% 1RM active (AR) or passive recovery (PR) session following a heavy resistance exercise session performed on a leg press device (10 × 10 1RM). Maximal isometric force production (MVC) and IGF- and IGFBPs were measured pre, post, 1-hr post, and next morning. A significantly greater relative response in IGF-I was observed in AR than in PR at post recovery and next morning (p < .01 and statistical trend, respectively) while absolute concentrations of IGFBP-1 at next morning were significantly higher in PR than AR (p < .05), and relative IGFBP-1 response from control to next morning in PR was significantly greater than in AR (p < .001). IGFBP-1 may be inhibitory to IGF-I biological action, thus the lower concentration of IGFBP-1 after AR may be considered favorable in terms of recovery due to its positive relationship with glucose metabolism and maintaining metabolic homeostasis. These results suggest that some of the benefits of an active recovery bout may be mediated by favorable IGF-I system responses (increased IGF-I and decreased IGFBP-1) in the hormonal milieu that may assist facilitating the cascade of physiological recovery processes following acute heavy resistance loading exercise.


Keywords: physical training; strength training; recovery (return); hormonal effects; legs

Free keywords: exercise; active recovery; passive recovery; IGF-I system; heavy resistance exercise; lower extremities


Contributing organizations


Ministry reporting: Yes

Reporting Year: 2019

JUFO rating: 1


Last updated on 2020-09-07 at 11:50