The discussions reflect general agreement on the article's conclusions, with several posts citing the benefits of high-intensity interval training (HIIT) over moderate exercise, e.g., 'Increases in mitochondrial content are superior after HIIT,' indicating support for the findings. The tone incorporates scientific terms and references to specific physiological processes, demonstrating active interest and engagement that could influence training strategies.
AgreementModerate agreement
Most discussions acknowledge the validity and importance of the article, especially highlighting findings that support HIIT's superior effects on mitochondrial content.
InterestHigh interest
The topics of exercise intensity, mitochondrial adaptations, and training efficiency notably pique the interest of fitness and physiology communities.
EngagementModerate engagement
Participants reference specific concepts such as cellular stress and mitochondrial biogenesis, showing active engagement with the scientific content.
ImpactModerate impact
The frequent mention of the study's implications for training protocols suggests a moderate impact on fitness practices and future research directions.
Abstract in brief
Interval training involves repeated intense exercise bouts with short recovery periods, categorized into high-intensity interval training (HIIT) and sprint interval training (SIT), both of which promote key aerobic adaptations such as increased VO2 max and mitochondrial content.
Cellular stress from higher exercise intensities in interval training significantly influences mitochondrial biogenesis and muscle adaptations, with HIIT potentially producing greater mitochondrial gains than moderate continuous training (MICT) when matched for work.
While interval training effectively enhances various physiological parameters like VO2 max and mitochondrial content, more research is needed to understand how exercise intensity influences other adaptations such as capillary density and cardiac function, especially compared to traditional endurance training.]
FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 https://t.co/rJoGA3WsWs
Oct 16, 2020 · 146 likes · 42 shares · 66,123 followersView post →
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Asker Jeukendrup
@Jeukendrup · X
FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 https://t.co/FeDlEKSkOk
Dec 18, 2020 · 89 likes · 18 shares · 66,123 followersView post →
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P.D. Mangan Health & Freedom Maximalist
@Mangan150 · X
Increases in mitochondrial content may be superior after HIIT compared to moderate intensity continuous training.
Implications for zone 2 training.
https://t.co/wWsOwzfi0u
Jun 3, 2022 · 76 likes · 6 shares · 299,755 followersView post →
PM
P.D. Mangan Health & Freedom Maximalist
@Mangan150 · X
"skeletal muscle adaptations, cellular stress and the resultant metabolic signals for mitochondrial biogenesis depend largely on exercise intensity"
https://t.co/wWsOwzfi0u
May 31, 2021 · 17 likes · 3 shares · 299,755 followersView post →
Rن
Rakan I. Nazer راكان بن ابراهيم ناظر
@RakanINazer · X
Physiological adaptations to interval training and the role of exercise intensity - MacInnis - 2017 - The Journal of Physiology - Wiley Online Library https://t.co/ea0gNtEPA8
From an evolutionary perspective, adipose tissue stores energy for periods of low availability. High-intensity training has shown excellent results in burning visceral fat and improving mitochondrial function, reducing…
In this episode, Dr. Charlotte Connell discusses HIIT, its physiological benefits, and how it compares to steady-state cardio. Learn what classifies as HIIT training and the optimal parameters for maximizing your…
Thought of the Day: Interval Training vs. Aerobic Base Work
I recently revisited one of the better reviews in The Journal of Physiology — MacInnis & Gibala (2017) on Physiological Adaptations to Interval Training and the Role of Exercise Intensity. It’s a great paper that cuts https://t.co/LQvcXiUBQK
Oct 8, 2025 · 1 share · 1,380 followersView post →
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Gunter Kuhnle
@ggkuhnle · X
RT @angryhacademic: Fun fact: even short exercise bouts can ↑ mitochondrial number & function—perhaps up to 50 % ↑ in mitochondria content…
Jun 26, 2025 · 1 share · 3,855 followersView post →
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Harriet Carroll: Long Covid Scientific Consultancy
@angryhacademic · X
Fun fact: even short exercise bouts can ↑ mitochondrial number & function—perhaps up to 50 % ↑ in mitochondria content with prolonged endurance exercise. Equally, inactivity can ↓ mitochondria content
https://t.co/WjfXio7OdK
https://t.co/EMUNQDQwvA
https://t.co/R9pin1TJ1s
Jun 25, 2025 · 3 likes · 1 share · 8,806 followersView post →
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AmericanEgoist
@AmericanEgoist · X
RT @Mangan150: Increases in mitochondrial content may be superior after HIIT compared to moderate intensity continuous training.
Implicati…
Nov 14, 2023 · 6 shares · 161 followersView post →
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alephh
@alephh · X
"Increases in mitochondrial content are superior after high-intensity interval training compared to moderate-intensity continuous training, at least when matched-work comparisons are made within the same individual."
https://t.co/e7I8Gqis5o
Increases in mitochondrial content may be superior after HIIT compared to moderate intensity continuous training.
Implications for zone 2 training.
https://t.co/wWsOwzfi0u
Jun 3, 2022 · 76 likes · 6 shares · 299,755 followersView post →
RT @Mangan150: "skeletal muscle adaptations, cellular stress and the resultant metabolic signals for mitochondrial biogenesis depend largel…
May 31, 2021 · 3 shares · 771 followersView post →
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kike
@FUENTESMANZULLI · X
RT @Mangan150: "skeletal muscle adaptations, cellular stress and the resultant metabolic signals for mitochondrial biogenesis depend largel…
May 31, 2021 · 3 shares · 249 followersView post →
PM
P.D. Mangan Health & Freedom Maximalist
@Mangan150 · X
"skeletal muscle adaptations, cellular stress and the resultant metabolic signals for mitochondrial biogenesis depend largely on exercise intensity"
https://t.co/wWsOwzfi0u
May 31, 2021 · 17 likes · 3 shares · 299,755 followersView post →
JM
Josue Pacheco Martínez
@JosuePachecoMa1 · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 20, 2020 · 18 shares · 17 followersView post →
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Orlando Muñoz
@1CHINO · X
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Dec 19, 2020 · 18 shares · 339 followersView post →
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Madhan Ramanathan
@sportsphysiouk · X
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Dec 19, 2020 · 18 shares · 1,122 followersView post →
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Hendra@gus
@Hanoman7530 · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 19, 2020 · 18 shares · 51 followersView post →
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Josep Campos-Rius
@JosepCampos_PhD · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 19, 2020 · 18 shares · 2,109 followersView post →
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Juan Manuel Alonso
@DrJuanMAlonso · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 19, 2020 · 18 shares · 3,224 followersView post →
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Alexandre ABEL
@alexabel09 · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 509 followersView post →
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Mary-Jane Newbery
@newbmj · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 55 followersView post →
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Bryn Peter Williams
@BrynPWilliams · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 128 followersView post →
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Greg Grandgeorge
@T2MCoach · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 258 followersView post →
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Bhopender Thakur
@TheBhupiThakur · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 1,395 followersView post →
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PT_Thunem
@PT_Thunem · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 81 followersView post →
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Ale ❤️
@alejandravelezg · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 1,104 followersView post →
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David Gómez
@Davidgomct · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 5,145 followersView post →
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Linds McPherson
@Linds_Elaine_ · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Dec 18, 2020 · 18 shares · 177 followersView post →
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Asker Jeukendrup
@Jeukendrup · X
FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 https://t.co/FeDlEKSkOk
Dec 18, 2020 · 89 likes · 18 shares · 66,123 followersView post →
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Julieta del Carmen
@diazdelagarza · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 25, 2020 · 42 shares · 206 followersView post →
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Hendra@gus
@Hanoman7530 · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
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Lucila Pivetta
@lucilampivetta · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
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Mikel Zabala
@ZabalaMikel · X
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Oct 19, 2020 · 42 shares · 7,210 followersView post →
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Naomi
@naomi_cpt · X
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Matias Gonzalez
@mtsgzz · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 65 followersView post →
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The Powermania
@PowermaniaT · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 48 followersView post →
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Humberto Gomes
@Humberto_EF · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 75 followersView post →
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Koushik
@koushikphysio · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
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Rentia Denissen
@RentiaDenissen · X
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Diego J Silva
@DiegoJSlva · X
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Madhan Ramanathan
@sportsphysiouk · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 1,122 followersView post →
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PT_Thunem
@PT_Thunem · X
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Oct 17, 2020 · 42 shares · 81 followersView post →
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Juan Manuel Alonso
@DrJuanMAlonso · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 3,224 followersView post →
AA
andres acevedo
@andresace260695 · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 1,933 followersView post →
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FC Victory Moscow
@akuznetsov19 · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
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Vince
@Vince_Mrgn · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 129 followersView post →
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Faizal Abdul Manaf
@Faizal_A_Mnf · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 17, 2020 · 42 shares · 204 followersView post →
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Michael Scarlett
@WorkPhysiology · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Oct 16, 2020 · 42 shares · 87 followersView post →
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Randwick Fitness
@Randwickfitness · X
RT @Jeukendrup: FREE download: Physiological adaptations to interval training @MartinMacInnis @gibalam @JPhysiol https://t.co/WriRl61QH1 ht…
Physiological adaptations to interval training and the role of exercise intensity - MacInnis - 2017 - The Journal of Physiology - Wiley Online Library https://t.co/ea0gNtEPA8