July 2020 PMID 32358310

Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Levels.

Shane R Schwanbeck, Stephen M Cornish, Trevor Barss, Philip D Chilibeck

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Mentions

Peak: 26 in May 2020

across 5 sources since May 2020

Extended reach

220,234

potential audience

Total likes

246

Video views

1,322

Mentions per month

May 2020 – Nov 2025

Where it's discussed

X / Twitter70 posts
News17 articles
Facebook3 posts
YouTube2 videos
Bluesky1 posts

AI synopsis

What people are saying

The overall discourse reveals a collective interest in scientific findings, such as mentions of increased testosterone levels with free weights and assertions that machine and free weight training yield similar muscle growth. The tone is analytical but also practical, with users citing specific studies, discussing hormone responses, and recommending exercise strategies, demonstrating moderate enthusiasm and potential influence on workout choices.

AgreementModerate agreement

Most discussions support the study, with several posts referencing similar findings that free weights and machines produce comparable gains in muscle mass and strength.

InterestModerate interest

The discussions show moderate interest, with users engaging by sharing scientific evidence and personal insights about the effectiveness of different training methods.

EngagementModerate engagement

Posts delve into research details like hormone responses and exercise comparisons, indicating a thoughtful and somewhat in-depth engagement.

ImpactModerate impact

The emphasis on the study’s findings about testosterone, cortisol, and muscular gains suggests these discussions may influence fitness routines and perceptions.

All mentions

Importance of Sleep and Rest for Health Benefits

In this video, I explain the reasons why it is important to sleep and rest well, highlighting the benefits of good sleep. Proper sleep is essential for overall health and well-being, impacting various physiological…

Diario Carnivoro · Oct 25, 2023 1,287 views

Free Weights vs. Machines: Which is Better for Strength Training?

This video discusses findings indicating that free-weight and machine-based training are equally effective for enhancing strength and muscle hypertrophy. Athletes can choose either training method based on their…

Grizzly Performance Programming · Feb 4, 2024 35 views

Bat Eats Moth

@BatEatsMoth · X

@GoodLuLuHart @DeanTTraining @Michael_Druggan here's another one: https://t.co/WL6o7vaZDR

Nov 4, 2025 · 12,550 followers View post →

lambda

@_lambda1 · X

@levelsio I've heard theyre both equally effective for muscle growth. Free weights do engage ur stabilizer muscles more tho but overall very negligable difference https://t.co/VMgaadRF9o https://t.co/DwCrcBLK2t

Jan 28, 2025 · 142 followers View post →

ruan

@916ruan · X

@sukunasacana @mrn_ralf @foraacademia e eu tenho evidencia cientifica para comprovar isso, mas primeiramente quero mostrar um estudo publico na pubmed que fala dos efeitos do treino com pesos livre x maquinas, e que evidencia nao ter nenhuma diferença em ambos os grupos no quesito crescimento https://t.co/W0iMqMRa9z

Oct 25, 2023 · 803 followers View post →

nishant

@nishantchim8 · X

RT @kritlal_: "Training sessions with free weights induced greater increases in free testosterone in men." — PubMed Choose dumbells and b…

Aug 15, 2023 · 1 share · 103 followers View post →

Krit

@kritlal_ · X

"Training sessions with free weights induced greater increases in free testosterone in men." — PubMed Choose dumbells and barbells 80% of the time, keeping machines for the rest 20%. #Testosterone https://t.co/EZHN5t6JHW

Aug 15, 2023 · 2 likes · 1 share · 166 followers View post →

Rafa Lund

@RafaLund · X

3 - https://t.co/alVwyF4RcC Treinar com pesos livres ou máquinas resultou em aumentos similares na massa muscular e força.

Jun 23, 2023 · 540 followers View post →

Mohamed Emad

@mohamedemad668 · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 24 followers View post →

Ramy Ibrahim

@ramyibraahim · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 19 followers View post →

امل

@ml22041969 · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 230 followers View post →

حسن

@mmma112233444 · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 6 followers View post →

قَ | 1890

@ReneeBe43385187 · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 2 followers View post →

آمـيـﮯر

@byr4588 · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 473 followers View post →

❤

@B___Sh0 · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 3,958 followers View post →

♥♥عطر الامل ♥♥

@ganbhkl390 · X

RT @fit_anas1:

Mar 25, 2023 · 9 shares · 492 followers View post →

أنس

@ans__cu · X

Mar 24, 2023 · 14 likes · 9 shares · 3,281 followers View post →

Bader alshatti Ms

@alshatti_fit · X

دراسة : مقارنة بين الاوزان الحرة Vs الاجهزة على النمو + مستويات هرمون التست: بنفس الحجم التدريبي لكلا المجموعتين : النتيجة : -الاوزان الحرة + الاجهزة = كلاهما بنفس الفعالية في النمو العضلي -وجدوا ارتفاع التست في الحر ، ولكن لم يولد نتائج افضل ! https://t.co/ixJhFkODlc

Jan 13, 2023 · 6 likes · 9,843 followers View post →

Lubi

@Rui_workout · X

■フリーウエイトとマシンを用いた筋トレ、筋肥大は同等?! フリーウエイト群の男性におけるテストステロン値の上昇はマシン群の男女より有意に高値。一方、コルチゾール、筋肥大は両群に有意差なし。 …精力増強にはフリーウエイトを

Aug 8, 2022 · 5 likes · 204 followers View post →

M. Cihat Çiftçi

@msc_ghot · X

Fitness salonlarındaki makine hareketleri belki gücünüzü artıyordur (serbest ağırlıkla yapılanlar da arıtıyor) ancak serbest ağırlıkla yaptığınız çalışmalar serbest testeron seviyesini makine antrenmanlarına göre daha fazla artırıyormuş. https://t.co/BuP0UnsRGc

May 6, 2022 · 1 like · 373 followers View post →

Alex

@AlexViKu · X

Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Levels https://t.co/bF0tL9gVYB

May 29, 2021 · 97 followers View post →

Science Alerts

@Science_Alerts · X

RT @EurekaMag: Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Levels…

Feb 7, 2021 · 2 shares · 1,234 followers View post →

POPLINE

@POPLINE_org · X

RT @EurekaMag: Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Levels…

Feb 7, 2021 · 2 shares · 5,238 followers View post →

EurekaMag

@EurekaMag · X

Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Levels https://t.co/kvDMTMXzg7

Feb 7, 2021 · 2 shares · 6,541 followers View post →

Mr fitness boy

@Mr_Fitness_boy · X

RT @nick_krontiris: Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Le…

Sep 6, 2020 · 1 share · 1,019 followers View post →

Nick Krontiris

@nick_krontiris · X

Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Levels https://t.co/4cv1sYZk4M #exercise #men #hormones #Workout #TrainHard #GymLife #GymTime #muscle #strength #lift #GetStrong #hypertrophy #gainz #gains

Sep 6, 2020 · 3 likes · 1 share · 19,470 followers View post →

SRW Fitness Emporium

@SRWfitnessbiz · X

RT @body_building: Effects of Training With Free Weights Versus Machines on Muscle Mass, Strength, Free Testosterone, and Free Cortisol Lev…

Aug 11, 2020 · 1 share · 497 followers View post →