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@drethankellum: Debunking knee pain myths #kneepain #jointhealth #orthopaedicsurgeon #healtheducation #mobility

Dr. Ethan Kellum
Dr. Ethan Kellum
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Region: CA
Wednesday 27 May 2026 18:34:21 GMT
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Comments

rickaarroyo
KinG :
WRONG!! Running does ruin your knees as you get older stick to light cardio machines don’t put pressure on your knees
2026-05-28 09:55:11
287
lestermolester123
ruroson :
running does destroy knees wym?
2026-05-27 21:00:23
115
cartertomac8
Carter Tomac :
For all those who say running hurts your knees that’s sooo false. I’m a distance runner who runs on roads and paved trails and hit 80 mile weeks and have never had knee issues. It’s 100% a muscle and form issue if it hurts your knees that's
2026-05-28 18:06:41
71
assbuvnwhi4
🇺🇸 Zig_Zag___ :
Everyone I know who runs has knee issues. I will never have that problem. lol.
2026-05-28 21:04:53
6
nadzter19
Naty :
Running did indeed ruin my knees
2026-05-28 20:49:05
27
truthmatters100
Truthmatters :
Of course running ruins the knees, since when has knees evolved to run on concrete.
2026-06-02 00:37:12
7
dblack.oqps
dblackoqps :
As long as I stretch beforehand, my knees are fine while running
2026-06-25 04:21:14
0
landoleia
Lando & Leia :
The only thing I disagree with is running. Running destroys my knees
2026-05-29 15:32:01
2
matthewbrown3088
Matthew Brown :
Half of this video is misinformation due to the generic content of giving one word responses. This trend is annoying. Medicine can’t be explained with one word answers
2026-05-29 14:57:54
9
rhazule
Rhazule :
idk i run, my knee kills after wards
2026-06-01 02:15:21
1
kazutokirigaya1967
Kazuto Kirigaya :
Strong quads = pain🤣
2026-06-26 23:13:02
1
user373197970648
Famto :
I did stem cells they were amazing I think getting knee replacement is a last resort I needed knee replacement surgery I said I'll do stem cells then it changed everything I don't even need a knee replacement anymore I had to go to South America but definitely worth it
2026-05-28 13:43:28
0
brandongordon1
Brandon Gordon :
Can you please elaborate on the Pain going downstairs? I’m a very big man and I have been very active my entire life, but it’s painful going downstairs sometimes.
2026-05-30 13:46:31
4
ykmieeee
Meh :
What causes shin splits and Insertional achilles tendonitis?
2026-05-27 19:08:50
1
vendrick6
kuewake :
my pain going down hill is a tendon issue not a strength one.
2026-06-01 04:14:24
1
priscillataylor57
pcvtaylor89 :
I've been running for 4 years. I have never had any issues with my knees...
2026-06-01 02:20:12
1
drippy_rocky01
Rocky :
Just got done with my 4th knee surgery and my surgeon explained to me that if I want to do cardio that cycling and swimming are superior to running for me because long term running is harsh on joints
2026-06-25 02:00:32
0
apanchito_115
APanchito_1104✝️ :
God bless yall ♥️❤️
2026-06-04 16:38:52
3
kalivinny0
K.V :
Running literally ruins ur knees lol
2026-05-30 11:36:23
9
1776duke
Duke1776 :
My knee Dr told me running is to knees what smoking is to lungs
2026-05-28 13:04:04
9
justkyomie
Kyomie :
my knees hurt more whenever I lose weight.
2026-05-31 15:27:33
0
user238z3xuz4i
H.H. :
Running does hurt the knees especially if you run on concrete
2026-05-30 02:00:52
1
the2hotatlanta
2 Hot Atlanta :
What exercise(s) should you do with inflammatory arthritis?
2026-05-30 07:43:20
1
develfyst
DevelFyst :
Former runner. My knees are toast. It’s the curbs and crowned roads.
2026-05-29 05:42:54
3
isaac_posadas
Isaac Posadas :
Tell me more about the going down stairs
2026-05-29 04:14:23
0
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Other Videos

The kick in freestyle is one of the most misunderstood parts of the stroke. Most swimmers think it is the engine. It is not. At distance pace the kick contributes somewhere between 10 and 15 percent of total propulsion. The arms do the rest. This surprises most swimmers because the kick feels powerful and active, and the legs are working hard enough that they must surely be contributing more. But water is dense and the legs are not shaped like paddles. They generate relatively little forward thrust compared to the metabolic cost of moving them. What the kick actually does is stabilise and connect. It keeps the hips from sinking, maintains the body’s horizontal position, and provides the timing mechanism that links arm movement to body rotation. The downbeat on each side coincides with the opposite hand entering the water, creating the cross-body coordination that keeps the stroke balanced and connected. Without this timing the stroke splits into two independent movements, arms and legs running in parallel without mechanical relationship to each other. This changes how the kick should be trained. A kick that is developed purely for propulsion, big, deep, and powerful, is being trained for the wrong job. The kick that serves freestyle best is compact, rhythmic, and precisely timed. It costs relatively little energy, stays within the body’s profile to avoid drag, and keeps the stroke connected across every length. The swimmers who kick hardest in distance swimming are usually compensating for something. Sinking hips, poor body position, or a stroke that has lost its connection. A well-organised stroke needs very little from the kick. That is not a weakness. That is the point. Technical fact: Research on freestyle propulsion shows the kick contributes approximately 10 to 15 percent of forward thrust at distance pace, with the primary functional role being postural stabilisation and inter-limb timing. Excessive kick amplitude increases metabolic cost and drag without proportional propulsive return, making kick economy more valuable than kick power in distance freestyle. The kick is not the engine. It is what keeps the engine running smoothly.
The kick in freestyle is one of the most misunderstood parts of the stroke. Most swimmers think it is the engine. It is not. At distance pace the kick contributes somewhere between 10 and 15 percent of total propulsion. The arms do the rest. This surprises most swimmers because the kick feels powerful and active, and the legs are working hard enough that they must surely be contributing more. But water is dense and the legs are not shaped like paddles. They generate relatively little forward thrust compared to the metabolic cost of moving them. What the kick actually does is stabilise and connect. It keeps the hips from sinking, maintains the body’s horizontal position, and provides the timing mechanism that links arm movement to body rotation. The downbeat on each side coincides with the opposite hand entering the water, creating the cross-body coordination that keeps the stroke balanced and connected. Without this timing the stroke splits into two independent movements, arms and legs running in parallel without mechanical relationship to each other. This changes how the kick should be trained. A kick that is developed purely for propulsion, big, deep, and powerful, is being trained for the wrong job. The kick that serves freestyle best is compact, rhythmic, and precisely timed. It costs relatively little energy, stays within the body’s profile to avoid drag, and keeps the stroke connected across every length. The swimmers who kick hardest in distance swimming are usually compensating for something. Sinking hips, poor body position, or a stroke that has lost its connection. A well-organised stroke needs very little from the kick. That is not a weakness. That is the point. Technical fact: Research on freestyle propulsion shows the kick contributes approximately 10 to 15 percent of forward thrust at distance pace, with the primary functional role being postural stabilisation and inter-limb timing. Excessive kick amplitude increases metabolic cost and drag without proportional propulsive return, making kick economy more valuable than kick power in distance freestyle. The kick is not the engine. It is what keeps the engine running smoothly.
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