Cited by 181Growth Hormone and Insulin-like Growth FactorsExercise and Physiological ResponsesMuscle metabolism and nutrition

Recovery responses of testosterone, growth hormone, and IGF-1 after resistance exercise

Kraemer, William J., Ratamess, Nicholas A., Nindl, Bradley C.·2017·Journal of Applied Physiology

Abstract

The complexity and redundancy of the endocrine pathways during recovery related to anabolic function in the body belie an oversimplistic approach to its study. The purpose of this review is to examine the role of resistance exercise (RE) on the recovery responses of three major anabolic hormones, testosterone, growth hormone(s), and insulin-like growth factor 1. Each hormone has a complexity related to differential pathways of action as well as interactions with binding proteins and receptor interactions. Testosterone is the primary anabolic hormone, and its concentration changes during the recovery period depending on the upregulation or downregulation of the androgen receptor. Multiple tissues beyond skeletal muscle are targeted under hormonal control and play critical roles in metabolism and physiological function. Growth hormone (GH) demonstrates differential increases in recovery with RE based on the type of GH being assayed and workout being used. IGF-1 shows variable increases in recovery with RE and is intimately linked to a host of binding proteins that are essential to its integrative actions and mediating targeting effects. The RE stress is related to recruitment of muscle tissue with the glandular release of hormones as signals to target tissues to support homeostatic mechanisms for metabolism and tissue repair during the recovery process. Anabolic hormones play a crucial role in the body’s response to metabolism, repair, and adaptive capabilities especially in response to anabolic-type RE. Changes of these hormones following RE during recovery in the circulatory biocompartment of blood are reflective of the many mechanisms of action that are in play in the repair and recovery process.

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Registry

Crossref · 10.1152/japplphysiol.00599.2016

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97 of 97 references verified0 citation errors · 0 not checkable

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  • The role of testosterone in muscle anabolism and catabolism is well described.

    “The role of testosterone in muscle anabolism (i.e., tissue growth, substrate restoration, and recovery) and catabolism (i.e., tissue breakdown and metabolic regulation) is well described [63]”
  • Anabolic hormones require specialist oversight and carry safety concerns.

    “Anabolic hormones (e.g. testosterone, growth hormone, IGF-1) can increase lean mass in selected patients, but require specialist oversight and carry safety concerns [73].”

    From Muscle loss and GLP-1R agonists use (2025) · cites this paper as [73]

  • Anabolic hormones can increase lean mass in selected patients.

    “Anabolic hormones (e.g. testosterone, growth hormone, IGF-1) can increase lean mass in selected patients, but require specialist oversight and carry safety concerns [73].”

    From Muscle loss and GLP-1R agonists use (2025) · cites this paper as [73]

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Authors
Kraemer, W. J., Ratamess, N. A., & Nindl, B. C.
Affiliations
  • The Ohio State University (US)
  • The College of New Jersey (US)
  • University of Pittsburgh (US)
Corresponding author
Kraemer, William J.
Venue
Journal of Applied Physiology
Published
2017-03-01
Volume
122
Issue
3
Pages
549-558
ISSN
  • 0161-7567 (ISSN-L)
  • 8750-7587
  • 1522-1601
OpenAlex
W2552297085
Cited by
181
References
97
Citations by year
2026: 17 · 2025: 23 · 2024: 23 · 2023: 22 · 2022: 18 · 2021: 23 · 2020: 26 · 2019: 12 · 2018: 11 · 2017: 6
FWCI
1.42
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
resistance training, recovery, testosterone, growth hormone, insulin-like growth factor I, anabolic hormones, androgen receptor, IGF-1 binding proteins, hormone binding proteins, muscle repair, tissue repair, homeostasis, exercise adaptation
MeSH terms
Adaptation, Physiological, Humans, Insulin-Like Growth Factor I, Male, Testosterone, Exercise, Muscle, Skeletal, Muscle Fatigue, Human Growth Hormone, Recovery of Function, Resistance Training, Young Adult

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