Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adults

Abstract This study aimed to investigate the effect of eccentric exercise on exercise‐induced muscle damage (EIMD) and inflammation on high‐altitude‐induced venous gas emboli (VGE). Subjects were exposed to an altitude of 24,000 ft. for 90 min, with either prior eccentric exercise (ECC) or no exerci...

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Main Authors: Frode Gottschalk, Mikael Gennser, Mattias Günther, Ola Eiken, Antonis Elia
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Physiological Reports
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Online Access:https://doi.org/10.14814/phy2.70147
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author Frode Gottschalk
Mikael Gennser
Mattias Günther
Ola Eiken
Antonis Elia
author_facet Frode Gottschalk
Mikael Gennser
Mattias Günther
Ola Eiken
Antonis Elia
author_sort Frode Gottschalk
collection DOAJ
description Abstract This study aimed to investigate the effect of eccentric exercise on exercise‐induced muscle damage (EIMD) and inflammation on high‐altitude‐induced venous gas emboli (VGE). Subjects were exposed to an altitude of 24,000 ft. for 90 min, with either prior eccentric exercise (ECC) or no exercise (Control) 24 h before. Blood samples were collected at baseline (T0), before (T1), and after (T2) altitude exposures. VGE load was evaluated using the Eftedal‐Brubakk (ΕΒ) scale. Creatine kinase (CK) and myoglobin were used to assess muscle damage, while interleukin‐6 (IL‐6), tumor necrosis factor alpha (TNF‐α), C‐reactive protein (CRP), and fibrinogen were used to evaluate inflammation. ECC showed higher EB‐scores during altitude exposures [median(range), 3(0–5)] than Control [1(0–4), p = 0.019]. Increases in myoglobin (+35%, p = 0.012), CK (+130%, p < 0.001), IL‐6 (+72%, p = 0.02), and CRP (+63%, p = 0.004) were observed from T0 to T1 in ECC, but not Control. Significantly higher levels of myoglobin (p = 0.033), CK (p < 0.001), IL‐6 (p = 0.016), and CRP (p = 0.002) were noted in the ECC compared to Control at T1. IL‐6 increased from T1 to T2 in ECC (p = 0.005), with higher levels than Control at T2 (p = 0.046). A correlation was found between EB‐scores and T1 myoglobin levels (rs = 0.450; p = 0.004), and to T1‐T2 IL‐6 changes (rs = 0.396; p = 0.037). Eccentric EIMD followed by inflammation is associated with a higher decompression strain, with VGE load aggravating systemic inflammation.
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spelling doaj-art-95dcc37fe628465c8ecd258bc11a8bf42025-01-10T11:14:29ZengWileyPhysiological Reports2051-817X2024-12-011223n/an/a10.14814/phy2.70147Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adultsFrode Gottschalk0Mikael Gennser1Mattias Günther2Ola Eiken3Antonis Elia4Division of Environmental Physiology Swedish Aerospace Physiology Center, KTH Royal Institute of Technology Stockholm SwedenDepartment of Physiology and Pharmacology KI Karolinska Institutet Stockholm SwedenDepartment of Neuroscience, Experimental Traumatology KI Karolinska Institutet Stockholm SwedenDepartment of Physiology and Pharmacology KI Karolinska Institutet Stockholm SwedenDepartment of Physiology and Pharmacology KI Karolinska Institutet Stockholm SwedenAbstract This study aimed to investigate the effect of eccentric exercise on exercise‐induced muscle damage (EIMD) and inflammation on high‐altitude‐induced venous gas emboli (VGE). Subjects were exposed to an altitude of 24,000 ft. for 90 min, with either prior eccentric exercise (ECC) or no exercise (Control) 24 h before. Blood samples were collected at baseline (T0), before (T1), and after (T2) altitude exposures. VGE load was evaluated using the Eftedal‐Brubakk (ΕΒ) scale. Creatine kinase (CK) and myoglobin were used to assess muscle damage, while interleukin‐6 (IL‐6), tumor necrosis factor alpha (TNF‐α), C‐reactive protein (CRP), and fibrinogen were used to evaluate inflammation. ECC showed higher EB‐scores during altitude exposures [median(range), 3(0–5)] than Control [1(0–4), p = 0.019]. Increases in myoglobin (+35%, p = 0.012), CK (+130%, p < 0.001), IL‐6 (+72%, p = 0.02), and CRP (+63%, p = 0.004) were observed from T0 to T1 in ECC, but not Control. Significantly higher levels of myoglobin (p = 0.033), CK (p < 0.001), IL‐6 (p = 0.016), and CRP (p = 0.002) were noted in the ECC compared to Control at T1. IL‐6 increased from T1 to T2 in ECC (p = 0.005), with higher levels than Control at T2 (p = 0.046). A correlation was found between EB‐scores and T1 myoglobin levels (rs = 0.450; p = 0.004), and to T1‐T2 IL‐6 changes (rs = 0.396; p = 0.037). Eccentric EIMD followed by inflammation is associated with a higher decompression strain, with VGE load aggravating systemic inflammation.https://doi.org/10.14814/phy2.70147aviationbiomarkersdecompressioneccentric exercisehigh‐altitudevenous gas emboli
spellingShingle Frode Gottschalk
Mikael Gennser
Mattias Günther
Ola Eiken
Antonis Elia
Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adults
Physiological Reports
aviation
biomarkers
decompression
eccentric exercise
high‐altitude
venous gas emboli
title Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adults
title_full Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adults
title_fullStr Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adults
title_full_unstemmed Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adults
title_short Eccentric exercise‐induced muscle damage and inflammation in conjunction with high‐altitude decompression in adults
title_sort eccentric exercise induced muscle damage and inflammation in conjunction with high altitude decompression in adults
topic aviation
biomarkers
decompression
eccentric exercise
high‐altitude
venous gas emboli
url https://doi.org/10.14814/phy2.70147
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