Exercise Scientist Critiques Chris Pratt's INSANE Transformation 

Dr. Mike had MORE commentary on this training we could't fit into this episode. Become a member for the extended and uncensored 'Exercise Scientist" episodes! bit.ly/37esL8i

It's quite refreshing to see Mike praise a Hollywood trainer, rather than shred them to pieces. Both versions are damn hilarious too!

Duffy just shared this with me, actually! Yes, he's one of the best humans around. Fun day of shooting, although the camera crew made me do a bazillion reps...😂 Thanks for the hilarious video too, and for all the legit work you're doing to inspire and help people feel/look/do better. I'm always learning and really glad to have found your channel. Thank you!

JAMES "DUFFY" GAVER is a former Marine sniper and ex-Navy SEAL turned celebrity personal trainer. His A-list clients include Ashton Kutcher, Brad Pitt, Scarlett Johansson, Adam Sandler, Channing Tatum, Chris Hemsworth, and Chris Pratt to name a few. He has worked in the film industry for many years.

A point you mentioned that really rang true for me was the one about getting back in shape after having already been fit previously. I’m currently 14 weeks back into strength building after a 4-year hiatus from the gym. I was an aspiring powerlifter with a training total of about 1400 lbs. Life happened and I fell into a horrible depression. I was so scared of returning to the gym and having to start from square one to regain all the strength that had previously taken me YEARS to attain. After getting some encouragement from my 16yo son who has gotten into fitness himself, I brushed off the cobwebs and got right back into lifting. I’m not yet where I once was, but my strength as well as my muscles have been returning remarkably fast, and I feel as good as ever! Dr. Israetel might I suggest doing a video on the topic of returning to strength training/bodybuilding after a period of inactivity? I feel like it might encourage others who find themselves in a similar situation that I was in. Anyway, I love your channel. I appreciate your academic approach to the subject, as well as your humor. I’ve learned a great deal from you since I started watching.

Congrats on 800k, I’ve learned so much from this channel. You have helped me break through the stagnant intermediate stage.

Legit can relate to Chris Pratts initial weight loss. Was 295 in February of this year and trying to get in much better shape. Currently 240 and working to get to 220 before going into recomp. Thank you for the constant videos and congrats on 800k

I just started working out with a trainer because I don’t know what I’m doing. Your videos confirm that my trainer knows what he’s talking about because everything he tells me about proper form lines up with what you say. He’s not Duffy, but I’m not a hollywood celebrity either, so I’m sure he’s good enough for me.

That is a South Wales accent Dr Mike. Some spectacular gyms in that part of the world and happy to act as host. Educational and pump inducing. What more could you want!

I've lost 40lbs, two pants sizes, gone from an extra large-to large-to medium now back to a large for shoulders and chest in 4 months since discovering this channel. Changed my life, dude. Listen to this guy.

Turns out celebrity workouts can be great when men's health isn't involved

I am currently rewatching this video. Seing Dr. Mike getting exasperated is funny but seeing him gushing over quality training is just chef's kiss. As someone who workouts at home and has been lost trying so many fitness influencers workouts is refreshing to see that the basics are the way to go.

I started watching this channel like 3-4 months ago and absolutely binged all of it. I workout at home and doing a full ROM and slow eccentric not only allowed me to not have to warm up for 15 minutes before a workout but I don't have to do stretching after (also I can use way less weight so I save money on plates). Joint pains - gone, better pumps and better results.

If you were to line up all the trainers you've had on this series, Duffy is the one I would look at and say "you're who I want training me" based solely on looks. It's no surprise he is also the best at actually training people. Great video as always!

As a patriotic Welshman I feel obligated to call you out here Mike, that is not a Midlands accent, it’s a Welsh accent! Cymru am byth🏴󠁧󠁢󠁷󠁬󠁳󠁿

I loved seeing a critique with some actual quality training. Demonstrations of what 10/10 techique looks like, with prompts, is so useful and a refreshing change of pace!

As a kid who read all these muscle and fitness magazines and tried to figure out what worked and what didn’t, I can’t imagine the information overload online about what workouts you should do. This is why I’m glad I came across Dr Mike’s channel. I love when anyone exposes frauds but he gives props when the exercise is correct.

Started lowering the weight on bench, going nice and slow on the eccentric, stopped bouncing whatsoever off my chest, and I’ve noticed the best chest gains of my life @29 in terms of size. Sure I’m no longer repping out 275 and I’m only repping 225-240, but it just feels so good and my chest is looking great

😂😂 Duffy has training figured out, but mannnnn Pratt doesn't. Those pull-ups and pushups had me wheezing.

As someone who was 297 two months ago and is now 265 and getting back into the gym this is some good motivation to keep at it, and some great knowledge to make my training more effective. Thanks Mike!

Older middle aged woman here ….that’s my workout ! My trainer has spent 3 years getting me to this point - to be strong enough and flexible enough to complete this program. There are a few adaptations - ab work on a ball to support my lower back and dumbbell bench press on a ball to allow a greater range of motion. Anyone can do this workout anywhere……good to see a basic workout for the whole body.

Dr Mike I just want to thank you! I’ve adopted your training and my gains have exploded! I’ve been focusing on technique instead of weight and I am looking good!

LOL at everything being perfect with the Crossfit trainer until the pull ups appear

Dr. Mike with 1m subscribers still taking the time to responds to comments. What a G

Real talk. The information that Dr. Mike Israetel provides is legitimately high yield. The best health information about hypertrophy training I've ever seen. Great stuff 👍.

With all the diet and training information I have gleaned from Dr. Mike I have lost 115lbs and gained some muscle too. Currently I'm in a maintenance phase, but very excited to start dropping lbs again. 35lbs to go!

This is the wholesome (yet suitably crushing) fitness reaction video we've been waiting for. And I can't believe how much useful and not confusing information was jammed into here... Like Dr. Mike into Chris Pratt's DMs.

Really enjoyed your Weight Training for Grappling, Dr. Mike! I would love a follow-up as you mentioned in the video. Appreciate your videos critiquing athletes' training as well, helps shed a lot of light on what's important when being sport-specific is a factor.

Awesome workout. Old school. Simple. Effective. And even *better* commentary.

69 yr old vet life long natural lifter with low T making a comeback from progressive spinal arthritis & osteoarthritis using the heavy stuff and failure. Endurance is great, can outdo most young guys. Odd I feel better when working out. Can only body squat, but can do press machine. Liking ur channel for a long while, but you hurt my back giving me belly laughs . Thanks Doc. Mike

This series is such a joy. Please never stop!

Vast knowledge, hilarious personality, a skeptical approach with a practical delivery makes this my new favorite go to channel for all things health and fitness. Keep it up!👍🏻💪🏻

I've been involved in many sports from elementary school. I played every team sport available through high-school. I've been in the best shape of my life into my late 30s. I've increased my size and strength into my mid 40s. I was a certified personal trainer, and sports nutritionist for over 10 years, clients getting good personal results. Fast forward to my early 50s, and I came across this channel. This content is so refreshing! It's like getting back to basics, and a reminder of the most effective way to build muscle. I'm looking forward to going through these videos. Good stuff!

Finally a good trainer

So glad to see a good example for once. Way to go Duffy 🎉🎉🎉

Best channel on RU-vid this for training tips. Keep them coming ❤

Big thanks to you Dr Mike, I've learned so much from your channel! And of course congrats on 800k

800K Let's go! Well deserved. Love your videos!

Dr. Mike thank you for all that you do. Really wish you were around or found you at the inception of my workout journey, would've saved me from multiple mishaps. Following you have only widen my horizon though, can only go up from here. Thank you!

this has become my favourite series on youtube , it makes my weekend

Omg just stumbled on this series and love it! great stuff

11:10 As a guy from the Midlands, I’m pretty sure that was a Welsh accent

Great job, David! Very informative discussion. It all makes sense ... Thank you for sharing! 💪🙏

Getting close to that sweet million! Great channel 🙌

Loving these commentaries. Also thanks for this channel. Helped with breaking middling results and made workouts more challenging.

Dr. Mike, thank you for everything you do. You've made my fitness journey so much more efficient and straightforward. Thanks to your help I've lost 17 lbs in 2 months while adding 25 lbs to my bench press. At 37 I'm the strongest I've ever been with a 200lb bench in near site. THANK YOU.

Great content and surprisingly wholesome bits too, big thank

Can I just take a moment to say how happy I am I stumbled upon your videos. I'm learning so much!

I was not in special forces, but I had a class taught by a SEAL once, and he said a lot of them actually keep a little body fat because they have to do cold water swimming. He did not look "exceptional" but he was scary fast.

I did a year long cut when I turned 50. Ate super structured 6 out of 7 days. Ate what I wanted on Saturday. Didn’t go to crazy on these days but would just enjoy the day and once a month would have a blowout meal with friends on a Saturday. I lost over 40lbs over the year. When I turned to maintenance I just relaxed on Sunday and ate normally but still am super structured Monday to Friday and I have maintained a proper weight for 6 years. Sometimes cheat meals are just fine. In my opinion.

Your knowledge and advice is awesome... but i always love all your comments!!!

I know I’m a women and this content might not be made for me, but I really appreciate your honesty on trainers like this. I also love that you’re educated in physical fitness and give real advise on muscle growth! I’m going to share your content with my boyfriend as we are both getting into body building. Also your content is entertaining, so it makes it really fun to learn!

I'm fairly new to the channel, but only half way through the vidbso far, I've never seen such a positive review of a trainer.

Dr Mike is the first American I’ve seen who knows about the midlands in the UK. But I’m sorry to say he was Welsh. 11:10

Thank you 🙏 for everything you do! You’re freaking awesome! You’re the best

I love the "exercise scientist critiques..." videos. Keep it up please❤

I'm glad to hear that one-arm dumbbell rows are good, since I discovered that for my self. you can use a _lot_ of weight and they do a fantastic job of targeting your lats. they also feel a lot more stable and flexible than two-arm barbell rows (which feel like they make your shoulders twist in weird ways) and there's no way I could do two-arm rows with twice the weight of the one-arm row. I also love dumbbell butterflies since it's otherwise pretty difficult to target your pecs (you'd need a butterfly machine or something which you can't really have at home).

Duffy getting all the props! Good stuff. None of that silly weird shit, trainers making up movements to try to be original. 1 mil is approaching for ya! Keep up the good work. I've been sending people to your channel. 👍

These videos are great, informative & funny. Thanks!

I've watched a few of his videos and I really enjoy his humor as well as expert knowledge!

Amazing episode, Mike. I'm two months into my new gym routine after finding RP and making great progress! Btw, pretty sure that's a Welsh accent 😉🐉

11:10 That is a Welsh accent. Midlands is completely different 😂

Really enjoying your videos. Keep it up, my man. Also, thank you for giving me heads up on the V-Shred guy.

Thank again. RP= Regular People :) Good Job!

A comment on the bench press. It’s never worked for me. I never feel like my pec has been worked afterward. I replaced it with DB Press instead and took your advice with pausing at the bottom and have had explosive chest growth and it feels worked everytime. Especially cause of the pause to get that nice stretch.

'Eating junk is pleasant and we have to recognize that fact.' Everytime someone's answer to junk is something like 'It doesn't even taste good really' you have to immediately check out of that person. It's chemically perfected to be everything your tongue wants, don't pretend it doesn't taste good.

That's a good way to think about training and the gym

Another great video

I don't wanna be buff anymore, I wanna be Duffy.

Glad to see someone with your knowledge is speaking up for flat bench - been irked by the slander on that move that seems to be really prevalent. Flat Bench, DB Incline, and Dips/Flyes are a powerful combo

Thank you!

Your praise for a legit trainer and your pragmatic - and funny approach to the critique just won the “Like” and “Subscribe” from me. Well done, keep it up!

Dr Mike, I'm going to do my MSc in Advanced Clinical practice specialising in Sports Medicine. Just curious, is the homoeroticism on the curriculum, or is it extracurricular work?

I could be wrong, but I think the pull ups and push ups shown in the videos were from when Chris was completing The Murph challenge, where you have to complete like 100 of each in a day or something, and not necessarily during his "training". Again, I could be mistaken, but it might give some context to the range of motion on them.

I like the dry sarcasm, I’m English, so it resonates. Subscribed

God I love this guys commentary lol it’s so good!

I was 336lbs at my biggest, now I'm 182lbs, and am trying to build some bulk. That technique to strengthen the back and shoulders, the dumbbell raise bow? Is gonna help me loads. My back is probably the weakest part of me, and gives me issues across a range of activities. Can't wait to see some progress. Thanks Mike!!!!

The bisexual panic is real.

Alright, I'm starting exercising and this is guaranteed to be one of my top 3 channels. I'm glad I found this.

This is awesome reminds me of my trainer who focused on the classics and pushing going hard

That accent, MIKE…. Is a WELSH accent. Not even the same country …. Although still UK, so kind of the same country. Still love you, it’s ok we get forgotten in wales a lot

Hate to admit the crossfit coach has the best advice of anybody else on this series.

I'd love a video on your take on reverse grip bench press. And just different grip styles in general. Really love you take on working out.

I needed to hear that about it being easier to get back to recently fit shape. I've been going through it lately and after losing 70lbs and working out for 2 years, I've recently found it hard to maintain it and have slacked off for a few months. I'm really feeling it. Missing the energy. Gotta get back to it.

“You ever just feel you pecks to make sure they’re still there.” Yes me literally 5 seconds before he said this.

You should do one for Glen Powell's training for Top Gun Maverick, I think the youtube channel is UltimatePerformance, but his training looked to be pretty legit despite the "Hollywood" training stigma.

Wow just found this guy, he's awesome and funny asf been binging all his videos! Subscribed!

This video was so motivating! Great Stuff Dr Mike! I'm just bummed I'm wasting all my energy at work instead of the gym.

Oh my god THE TRAINER IS ACTUALLY GOOD??? I never thought I'd see the day. Also, I feel absolutely called out by the "do you ever just have to check that your pecs are still there?" because I totally fucking do that.

If Duffy were Welsh he'd be Uffyd

Good to see a wide variety of basic equipment and free weights.

Dude you da best ! Love your sense of humor

You can tell he’ll be good by the way he’s uncomfortable in front of a camera. Not doing it to be an influencer.

I know a couple of seals. They are actually both pretty darn skinny. I am stronger in the conventional lifts. They are more badass at pretty much anything else physical. And they are borderline insane…

I have been my my trainer for more than ten years. He speaks the world of Dr. Mike, not just his science knowledge; he is really really funny. I neve get tired of these videos. Thank you.

This is the first time I’ve seen you praising someone’s training. It’s nice to see

if i had a nickel for every time dr. mike said "mechanically disadvantageous but muscle growth-promoting position" or similar variation, id have... probably a lot of nickels

Dr Mike, above all else physical fitness is the most important thing that's hammered into you in the military. Athletic physical fitness, it's the only thing you might end up doing 2-3 hours every day M-F, and if you suck they will make you do it Saturday as well. I was 5'8 195 and could do 104 pushups in 2 min, run a 13 min 2 mile, and 70 sit ups in 2 min, I scored normally 285 or higher out of 300 possible points. (sit ups always kicked my butt). 2nd most important thing that rivaled fitness was ... How good your boots and clothes looked. Yes, that is what will get you in trouble far more often than your fitness, well that and people who are drunk all the time.

Thanks!

17:50 Saving my gym life. Started working out when i got to highschool(15) Now im 27 Havent worked out like I used to for about 6-7 years. I decided to take 2 months off and within 1 month, ive got my body back, muscle locking is leaving and my mobility & strength is going very well within just 7 weeks of training! Thank you Dr Mike! Youre a blast to watch. Im 6ft 1, I was 250lbs about 1.5-2 years ago. Im currently sitting around 190.