Spinal Engine Blog Post: www.moversodyssey.com/post/joy-efficient-motion-and-the-spinal-engine
Sprinting has incredible effects on the human body, as can clearly be seen with a single look at any Olympic sprinter. While long distance runner tend to be thin and toned, sprinters are usually rather muscular and ripped. This is due not just to sprinting's outrageous ability to burn fat ( runrepeat.com/sprint-interval-training ), but also to it's ability to maintain muscle mass with massive spikes in growth hormone ( link.springer.com/article/10.1007/BF00237784 ).
#sprinting #running #sprinttraining #trackandfield
1 tip, if you haven't got sand to run on, use long-ish grass to train on, making sure to lift your foot over the blades. It helps with driving your knees up and forward, improving your cadence and helps with ankle strength and stability as you're bringing your foot down on an uneven surface.
Barefooted walking and sprinting has done wonders for my leg strength and posture. Even if there's no sand or grass pathway, I go for barefoot shoe soles to get the best footbed mobility on hard surfaces
So you recommend barefoot sprints? Is it safer to the shoes alternative?
💀i prefer not to get any ticks
@@dingomaticbarefoot shoe soles.
@mixermaster10 I don't think he's talkin about knee high grass.
I was a state qualifying sprinter in high school and ran a lot in the military. The best sprint workout i have ever experienced came from basketball conditioning. What we did was 1-mile (1600m) total worth of sprints on an outdoor track... (I recommend starting with at least half that and with a slightly lower intensity for a week... or 3) but it was typically broken up into (16) 100m dashes with limited rest time. (8) 200m dashes, or (4) 400m dashes. we did the 200m dashes most often. we would start at the 200m start line and have a goal time to hit (mine was 32 seconds even though I was capable of running it in 23 seconds, because we have to do a lot of them with a lower recovery time)...but we would sprint to the finish line then walk till we were even with the field goal post (which is about 50m), then lightly jog the rest of the way to the start line (150m)...the coach would be counting down and we would have to be ready to sprint as soon as we got there. it was great for conditioning and speed. BUT!! in the military we did something similar that's much easier to keep track of and you don't need a track. they're called 30, 60's or 60, 120's. which is exactly what you would think. sprint for 30 seconds, walk for 60. or sprint for 60 seconds, walk for 2 minutes. this would typically last for what felt like an hour but was probably 15-25 minutes....enjoy.
I unfondly remember doing the 16×100m for varsity football, it was not what we in the business call a good time lol
@nathanielsmith8764 haha sprinting is never fun but Damn do you evolve quickly
Thank you for sharing!
Thanks mate
Thank you bro I'll be sure to screenshot this and implement into my life
I heard Huberman mention something about sprinting recently, and have now done a few simple sprints repeat (10X) sessions on the grass, the length of the soccer field. It feels great. This video is a good reminder for me to keep it up, and all the physiological adaptations to sprinting are a great bonus! While sprinting again its reminded me of the good old days when I was a kid and a teen--naturally sprinting just for the joy of it. As we age it is so easy to forget the basics. I can probably count on one hand the number of times I sprinted between ages 40 and 50! At 52, I look forward to making this a staple of my workout routine.
Yeah and you didn't care that you were outta breath.. and you were like, hah, I beat you, or man ya got me. Damn you're fast. Let's try it again! I was over weight and not in the best of shape but I was still decent for a fat kid lol. I need to get back to doing these. You feel amazing all over after.
Do you feel like your gonna get injured at that age, i wanna know cause i want to still be able run and sprint at that age.
@@thesquad2253 At 52 I definitely want to take it easy, and progress cautiously, some people say sprint at 70% at first. Injury from running and especially sprinting is a very serious possibility at my age. The part about sprinting relaxed is super key, no need to strain or get tense. But it feels great and totally seems like a worthy training goal.
Thats a lot of volume, hope you're not doing it 3x a week
Only once a week. I've been too sore after I doing it, so restraining my enthusiasm for running too fast is still a work in progress. @@mhxxd4
Ive been sprinting for almost a month as of writing this. I only sprint 1-2 100m dashes a day, though ive seen significant improvements to my overal physique and body shape. Ive gained a decent ammount of muscle in that time, and on top of veing faster, i also am able to run for longer amounts of time. I really think that if everyone did a little sprinting each day, the world would be a lot healthier
Did you grow any taller tho
sprinting wont make you grow taller @@dogindapic7332
Are you serious?@@dogindapic7332
You probably aren’t gaining that much muscle from just a month. It’s more likely you’re loosing weight which is revealing the muscle already there.
@@dogindapic7332if you want to grow taller it’s mostly genetics, just stay healthy, eat enough food, get all your macronutrients and do any kind of sport really.
Bolt does an average of about 38kph in his sprints for about 10s, Kipchoge does 21kph for 2hrs. Long distance running is really really tough.
Well there is no doubt that it is tough, it surely is better for training your mental strength, but the video shows the benefits of sprinting in terms of muscle growth/fat loss
It's all relevant. Everything this video says, holds true.
The race is the reward for people who run 100m, the training is the rough part, there is video on youtube of bolt training 100m and 200m interval sprints puking all over the track, the lactic build up in the body from that kind of training is extremely intense.
Thanks for sharing your knowledge man!
Yeah I was actually stunned when I did calculations for how fast he ran on average
Thank you. I spent a few weeks doing goofy looking physio exercises in the gym for hips and hamstrings just so could do sprint training with out injury as a middle aged guy. Now don't feel so silly. It worked, went to the beach with nephew and just sprinted for the fun of it and felt fantastic. Fight or flight. Seems sprint training should be a lot more popular than it is.
If it was easy everyone would do it
@@jcmick8430 It is easy though, so why isn't everyone doing it?
@@jcmick8430 thats the problem, people are lazy, looking for "easy" things.
@@kiilee5963 Sprinting is actually easier than long distance running, so... I don't know.
@@kiilee5963I just wear this belt that shcoks my abs into contracting and i have a little thing to pedal under my desk now i have a six pack (jkjk)
Outstanding revelatory video that I've been doing for decades......with no running. My legs were shattered in Viet Nam and so I do this sprinting with swimming and rowing and it works the same. I was winning national fitness contests at over 50 and now I'm just under 75 and ready for fitness pics on my 75th birthday and getting more ripped. Enjoy the sprinting in your way.
Respect
Awesome and thank you for your service 🙏
Before a year, I decided to become one of the few hobby sprinters in the world of hobby long-distance runners. Sometimes you feel like a weirdo, but I don't look back. I love the variety of supplementary exercises and workouts I can do and the amazing feeling when your visual field blurs in a full speed and you feel the wind washing your body while you are sprinting fast. It's an amazing mental exercise as well for staying calm in a stressful situations.
Well said!
my thoughts exactly! i should do it more often!
After sprints, my posture is incredibly improved for days. Don’t know why but it does
Probably because of the glute activation
Yess it does I too recently experienced the same
glute and core activation. Anterior/posterior chain balance
So true, if felt that after sprinting and resting while walking.
That Rocky reference was so spot on, im pretty sure most of us had ut in the back of our heads since the video has started 😅 Thank you for the great video, sir 👍🏼
Glad you enjoyed it!
This is quite accurate. As a distance runner, my recovery and speed have greatly improved by doing calisthenics for upper body and core three times a week. Also I do two interval running sessions per week and only one long run which is still pretty short. The fast recovery and overall feeling great I attribute to the hormonal effects of calisthenics.
What's your running volume and can you describe your calisthenics routine (exercises, sets, reps)? I am a runner myself and play around with calisthenics once in a while but find it hard to do both on a regualr basis.
@@ithinkthereforeitalk935 My basic calisthenics routine is pull-ups/ chin-ups - dips - push-ups usually one in 'down an up' fashion, meaning I start the circuit at 10 reps and then go down to 9,7...1 and then back up again where I usually get to 8. Rest starts at around 45 seconds and also goes down wich decreasing reps. This give me the volume in a relatively short time. After this, I do lots of stuff like handstands, rows, ropw climbing, anything really. Also for the legs I do horse stance, animal walks, jumps etc., just playin around. Running on the track is usually something like 10*400 m, pyramids or a bit longer work. One longish run per week of about 10k barefoot. Track runs usually is on 'normal' footwear for warmup, then I switch to Merrell Vapor Glove. Stats: 178 cm/ 64 kgs/ age 50/ 19:48 5k (last summer).
you can alternate what you focus on. So 1 month you do mostly Claisthenics and vice versa. That helps @@ithinkthereforeitalk935
Do you have any resources for getting into calesthenics
@@baggychips3153 There's tons here on YT to begin with. I'd recommend Vahva Fitness as a starting point, they are right on the money IMO and have a very broad approach. Also if you are more into the bodybuilding side Alex Leonidas is a great source. The German guys from Calisthenicmovement are not too shabby either. Good luck.
Please never stop making videos like this, it’s so helpful and honestly very entertaining to watch, KZhead channels that focus on miscellaneous forms of body strengthening are very rare and way more fun to watch than simple strength and muscle building channels.
I second this ❤
It’s important to note that it is really easy to over train doing sprints. My track coach had us run up to 40 sprints some days and we were sprinting every single day. I injured my quad pretty bad and my friend severely injured his hamstring (almost coming off the bone!) We are both the fastest players on our football team so it really hurt our team to have us out on injuries that could have easily been avoided.
How long did you guys sprint for? In seconds or how far did you guys run in yards?
@@PrimalLinkprobably 100
And when it happen those injury always happen to those faster players in the team, it’s like your body cant withstand your power
40 is crazy. I do 3
Damn
I've been sprinting for a year and If I hadn't been aware of this video I'd have continued to make the same mistakes I did all year. I want to be explosive in speed for combat sports. The sprint workout you recommended I believe is game changing for me.
I'm glad it helped! Sled pushing is a great variation for fighters as well, especially grapplers.
Try Swim sprints Bro 5 mins warm up, 2 mins mobility/stretching. Then sprint 50m front crawl as fast as you can then 2mins breastroke slowly to rest. Repeat 8 times, then cool down. Carb up the night before to load muscles with glycogen and drink BCAA’s and Creatine Your power generation will go through the roof and injury risk is low, VO2 max goes through the roof and you’ll get jacked to fuck
Sprinting for a year?! That sounds tiring, I probably couldn't do more than 200m
@@elijahknox4421 I believe you can do it!
@@elijahknox4421 lmao this guy
Man our body is truly just a miracle ain’t it?…god what a marvelous machine and organism!
Yes. Except when it doesn't heal. Thinking of you osteoarthritis and inner-ear hair cells and synapses (for example). But of course this isn't something you reflect over when your body is healthy and without issues - then the body is just amazing. :)
God doesn't exist.
@@cringekiller348 Stay in denial for as long as you want. The odds of the human body being so proportionate is not by chance. The golden ratio is everywhere in nature, Mecca is even at the centre of the earth when using the golden ratio.
@@cringekiller348 bro i'm a agnostic myself, but just let the people have their beliefs lol
@@chafikaziz that doesn’t prove anything. Yall just have confirmation bias
I love this channel bro, just went out to sprint for the first time in 10 years and I feel amazing. I'd usually do regular 5km runs and get bored after a couple times and give it up for months. Running makes me feel dull mentally afterwards but right now I'm sharp and excited. The feeling at top speed was incomparable. Definitely gonna be keeping sprints in my routine.
Glad your enjoying yourself, I'm the same way/ I love the feeling of sprinting and loath how I feel distance running. Good luck with your training!
As a 52 year old (former) athkete warming up becomes more important. We are bulletproof in our 20's and a little less in our 30's but I pulled a calf muscle on my first beach sprint I was very much looking forward to...sets you back weeks...
👏🏼👏🏼 Nice to see this. 1 year of my trials and errors summarized in a 5 minutes vid... Plus some tips I'm gonna adapt right away, specially the beach sand recommendation for heel injuries. Thanks!
I'm training for a marathon, and I've found improvement across the board by just adding one SIT workout a week. It's made me more able to access higher speeds and feel more able to maintain speed uphill.
Before I went to basic for the Army, a good friend of mine that I used to work with that was prior service helped me prepare for basic. One of the things he did, was start out by just doing 2 mile runs at a decent pace, 2-3 times a week and gradually increasing my speed. Then one day, we did intervals and it made the 2 miles seem harder, but made it go by much quicker and felt like an overall better workout. Now I will just incorporate it into my runs occasionally, or when I'm doing longer than 2 miles, I'll just sprint as far as I can a few times.
This is great info. I'll look at adding this to my regimen. Cheers!
this channel is a great find, I am genuinely baffled you are not at least a million sub channel. I commend you for the way you present your info, in a duration fit to be concise, and the great artwork to supplement the already valuable information. Keep up the good work!
Agreed!
Awesome video! Got me motivated to pick up sprints again 💯
Just happened to find the video on my recommendations, and I really enjoyed it, great work!
Back in college I used to sprint like a maniac, on the ground or on treadmill. Did not go to gym or work out for an year, but still do not feel short of breathe after running a couple miles or doing high intensity workout.
Love this one! Love all your videos but this one is my favorite ❤
This is incredibly precious information, thanks a lot for spreading it!
I love the illustrations of this explanation, awesome looking 👍🏽😎
This was very well put together. Nice visuals too!
Amazing video, I´m gonna start adding sprinting to my routine starting tomorrow. Thank you ;)
I needed this film so much. Thank you
Love the graphics. Neat content and memorable advice. Thanks
Sprinting is one of the toughest exercises on the body so be careful of injuries. 2x a week MAX.
Fort the nervous system too
Content is great, I'm up for giving it a try! The graphics in this video are amazing, very well done!
Thank you, I'm glad you enjoyed it and good luck with your training!
amazing understanding of drawing anatomy. great job
This channel is simply awesome, thank you so much - new subscriber here 👍
Excellent video as always. I think one of the other variations might be interval sprints up a flight of stairs. Used to do these when I lived close to nice outdoor stairs.
I used to do this on weekends at the local high school track, great way to build some power in the legs along with some high intensity endurance. I might have to try these again, it's been a long time.
Great content like always 😊 and the example workout at 3:12 is a great addition. I find theory videos often lack some sort of example and this rounds the topic up very nicely🤓
Knee grow... Read that out loud
this channel is a gem. subscribed!
That was nice art,it really helps in learning, thank you for good quality content,hats off to you
I absolutely hated sprinting until i discovered strides. I love long runs on the trails, but adding in 4-6 bursts of about 30-45 seconds made me a faster runner, was way more fun than a speed workout, improved my form, and didn't leave me feeling exhausted or sore!😅
The hand drawn illustrations are great :p thanks for the info!
This is one of the most interesting videos I've seen in a while. Makes me wanna try this and see its effects on me
This video is effectively and efficiently informative, thank you!
I've started running/jogging and gym about 2 weeks ago, here is my noticeable changes in this short timeframe. -Aerobic capacity, I am not out of breath now when I run I can breathe comfortably and even stop if I wanted and won't gas out instantly like before. -Heartrate/pulse, before after a couple of minutes of running the back of my head would be pounding hard and I would be breathing fast and heavy I would have to stop completely to catch it again, now this hasn't been happening, my limiting factor is that my calf gets sore so I stop only for that. -Heartrate again, but on the point that when I finish my jog/run I am nearly recovered to my normal breathing rate, I did 40minutes on the treadmill at 10km/h on and off, and at the end despite being completely covered in sweat over my whole body I was breathing as if I was mildy strained. the human body is amazing and the adaptations are very fast and noticeable to lifestyle changes
Im encouraged by your suggestion to do 30s sprints with 4 minute rests, because ive always felt like i do NEED that long between actual sprints. Havent sprinted in a long time but i ought to get back into it.
a heart rate monitor will tell you your rest time. with a free app from polar or others you can record a graph of the heart rate and define a minimum heart rate where you feel comfortable again. after the second sprint you will see already that it takes maybe half a minute longer to get the heart rate down.
Amazing work on the animations for this. Bravo!
Sick video man. Amazing!
Love your video and the anatomy.
Amazing video, excellent! I really like your video content!
Thanks for the video - I was thinking about sprinting again too as others in the comments - impressed and really surprised by 2000% growth hormone increase.
Great video discussing the physiological benefits in sprints for muscle growth/fat reduction. Will definitely share this info.
I sprinted for a little bit over the summer and the biggest thing I noticed was that my glutes grew a lot more. And I am someone who deadlifts and hits legs and glutes religiously.
A lot of people refuse to believe it because they have never done it, but sprinting is one of the best glute and hamstring workouts I've ever done.
U won't gain much muscle if any from sprinting
@@AlexanderLuna-xf5wrA basic Google search disagrees with you
Are you male?
@@alexiwhifrimhelh, Yes.
As someone that's had a hand injury and can't do my normal gym sessions for the upcoming month, this could be a great temporary solution to stay in shape. It certainly can't hurt to try.
Thanks I've never thought of doing sprint training but I'm going to try adding this to my routine and see how it goes.
great video short and sweet this guy deserves so many more subs
Years ago, I would do uphill "wind sprints" about 50 to 75 yards, or until failure. Great training for 10K runs. Your cardio fitness state increases rapidly.
For what it is worth I'll give my take on this. As an all-around workout routine I'm agree but I would add that if your target is competitive 10k runs and/or to develop your cardio endurance you shouldn't train with sprinting too much. The reason I say that is because sprinting and distance running developments are periportally reliant to their own type of exorcise; so you are either focusing on building your aerobic metabolism or your anaerobic metabolism during training. The high intensity activities (anaerobic) use the phosphagen system and fast glycolysis to develop you to reduce lactic acid buildup while making energy without oxygen where, in contrast, with the prolonged, low-intensity activities (aerobic) you be building a cardiorespiratory endurance with the oxidative system using slow glycolysis to enhance how effectively you can utilize oxygen to fight back fatigue. You could do both but one doesn't help with the other because they are two separate energy systems you'll be training/developing. I suspect the long distance runners I ran with trained a small mounting of sprinting (usually 100 meters with very long rests) because they are hoping to improve their 'kicks' for their final pushes.
I’m 39. I’ve been running a 4 mile circuit for about 8 years now. It consists of a light 1.5 mile jog as a warm up. Then I walk, dynamic stretch, and sprint intervals for about 2.5 miles. Twice a week. On a very good week 3 times. Takes about 1 hr 20 mins. Incorporate a few lift sessions every two weeks at the gym. Calisthenics and stretching at home.
Love this style of fitness focused content, new sub gained. 🤙
Ma i really love the information you are providing especially how you are providing theme, compliment to you and thank you for your work
Ive been used to doing slow ensurance based cardio but after this video I'll experiment with spritnting
I used to do 5km everyday and it got boring super fast. I only feel exciting after finishing it, not while doing it. Now I only do sprint and boxing, that adrenaline rush when you run so fast that your body can't even stop is fascinating 🏃
Subscribed. Very informative video and expertly presented. Who would have thought sprinting trumps them all!
Wow… it’s crazy how I was doing all this on my own without any research. It just felt more natural and suited for my body type. Even the sprinting form, just did it subconsciously. Exactly like how the illustrations were showing. Basically just listened to what my body preferred and felt slightly more comfortable than what I was previously doing thru trial and error. Thanks for this info!
This video was incredibly beautiful for some reason
His art presentation for workouts is top tier
Thank you! ✨🙏💖😁✨
Wow, thank you for this wonderful video
Hill sprints are my 2nd favorite workout after long distance runs. There is just something about floating up a hill past people that just gets me going
Just found this channel and it’s a gold mine bro! I subscribed asap and told all my friends! great stuff
Thank YOU!
damn , good content , thats some helpful info , thank u so much bro
From this day forward I declare sprint/ interval training shall be known as "Sprinterval".
This has my full support and endorsement
I've been doing this, but not on purpose. Originally I just wanted to do some cardio and get my endurance up, but I found myself having to sprint a couple times during a session to get my legs feeling more light. Also it just felt really good.
Another benefit, is feeling awesome. Sprinting is such a cool feeling, being able to move at incredibly fast speeds is one of life’s best pleasures.
Excellent and very informative. Thank you
Love it when I'm putting together a perfect plan to become a superhuman just for my 3 AM motivation to die off right after setting a goal
After permanently breaking my toe a few months ago, I can no longer sprint for fitness, which was all I did. Run while you can lads! It’s a gift.
Very good video. LOL at the rocky mr. T reference in the end.
I'm new to the channel and wow... high quality content, narration and animation: well done!
As a full time sprinter this video is perfect
Let's make no mistake here, Eluid, runs an entire marathon faster than most people can sprint .
I don't doubt that, guy's a beast
That's right. 2:51 per km = about 68 sec per 400m = 34 sec for 200m. 210 of them in a row, without a second's break
Sprinting slower thab eliuds marathon pace is embarrassing. Most people are way faster than that
@@AlexanderLuna-xf5wr Maybe for 100 meters. But most people struggle to run that speed for 400m, let alone a whole marathon.
@@jonorton9722 I'm glad you did the math for us but people have to understand those time marks aren't even average for placement for even the boys' under 12 for either the 200m or 400m sprints. So to blanketly accept that those splits are 'faster than most people sprint' would be VERY misleading/exaggerated.
KEEP UP THE THE AMAZING WORK BROTHER❤❤❤
Excellent!!! Amazing info and video!
Recently my morning routine has consisted of running a mile (ish) straight after waking up. The reason for this is that a) it doesn't take much time and I don't get too hot and sweaty (especially this time of year), b) it wakes me up and energises me, c) I get early morning light exposure, and d) I still think that with a short workout like this I'm getting some cardiovascular benefit. I start fairly slow to warm up and increase to a fast-ish jog, then finish with a sprint. After reading this I may incorporate some more sprints within the run.
I really feel good after a 1 mile jog. it's as far as I'm usually willing to jog but it feels great up to that point. Often I'll casually jog a mile but randomly sprint for 10-15 seconds maybe 3 times during the mile or just wait till after the mile and do a few sprints once I'm warmed up.
Sprinting is really fun!
Great content!
Great video. Awesome art style as well. One thing I would have touched on is anaerobic vs aerobic training difference as well. I've run with Sprinter who went on to compete in the Olympics who couldn't finish a 2 mile run without heaving and dry vomiting because their bodies were so conditioned to anaerobic training.
When I was on the track team in college, one of the best sprint intervals we had was 10x200m@30sec w/2min recovery. Or sprinting hills for 100m with recovery of however long it took to walk back.
What have you trained for? That's endurance training, not speed. You cannot rest for only 2 minutes and run 2k of 200m at a good speed. This video is not talking about your type of training.
@@patmull1 I was a 200, 400, 400H
@@ljss6805 Ah, I see. The, for the 400m this training makes sense.
@@patmull1 It also makes sense for the 200 and the 400H.
great video, thanks. if you don't do a field workout with sprints, you're really missing out. its the single most challenging and rewarding workout in my routine. without it, i feel fat and weak. i started lifting about two years ago and after incorporating field workouts, everything for me took off. as an older man, i need the boost in T and blood flow for overall health, athleticism, and recovery. lifting has become easier because i really challenge myself on the field. i do three legs to my field workout. first one includes a superset of indian runs and burpees. secondly, i do 50 yd and 100 yd sprints, followed by lunges and SAQ drills. lastly, i do hill sprints, a couple jogbacks (25, 50, 75, 100) finishing with more 50 and 100 yd sprints. if i can do this twice a week in my routine, i feel like superman. sadly, sometimes i only get it done once a week (life.)
It would be great to see the details of the full workout you do if you don't mind? The number of each exercise and rest times?
Great drawing and great information ❤
This video is absolute gold
My neighbors think I'm weird sprinting up and down the street but whatever, gotta get those sprints in.
Respect
Hey MO, are you able to make a video on all activities to do to Increase HGH and Testosterone like Sprinting and Working Out? Btw these videos are too interesting keep it up.
Running after people at night
I gained 4 pounds of muscle in 5 months doing this
Bicycle. Swim. Sprint. Or somes sport need explosive power like basketball
Progressing chin ups and dips until you can do good volume with a weight attached. Slowly work your way up. Alternate heavy and light sessions. 5 reps per set is heavy. 10 to 12 is light. For legs, I do not recommend barbell squatting. You can build much bigger legs with less risk of back and knee injury with a combination of RDLs and hack squat/leg press. Other accessories you can do of course like machines and dumbbells but these are the main lifts.
Any increase in testosterone from exercise is short term, and your levels usually go back to normal later in the same day. Exercise, in any form, is great to keep a normal testosterone level in healthy individuals - but it will only keep you within the normal range. Same thing with your diet, any foods that appear to raise testosterone will only do so for a limited time period, and your levels will drop later in the day. Any increase of testosterone within the normal range will have zero to little change on your physique. Big changes to your physique (in an unusually fast time period) require unnatural levels of testosterone brought into your body by pharmaceuticals.
I usually don't subscribe to the first video I see, but you put good references...I just had to! Good stuff.
Been practicing sprint intervals these past 2 years - quite possibly the best mental benefits (longterm development ones) that I've ever experienced from exercise.
You aced it, been sprint interval training for 25years. Top tip, no fatty food 1 hour before training no sugary food or drink 1 hour after. Both will mess with Growth Hormone/testosterone output you get from sprint training. Also be 1C warmer for full hormone effects, so in a cold climate, thermal joggers, jacket, and hat rule of thumb only start once you're sweating from warm-up. And obviously no cold showers afterwards.
Tomorrow is my 3rd day sprinting. This perfectly sums up why.
Short and Sweet. Nice 👍👍👊🏻
love the unique style!!!