4 doctors weighed in:
Isometric vs isotonic exercise?
4 doctors weighed in

Dr. David Hardin
Wound care
2 doctors agree
In brief: Move or not?
Muscle contractions can be divided into: •isotonic (constant tension through rom-range of motion) basically but not exactly like free wts.
Most effect on weakest point •isometric (no movement) •isokinetic (motion is at aconstant speed but the force varies) requires complicated special equipment but does strengthen the muscle through its entire range equally.

In brief: Move or not?
Muscle contractions can be divided into: •isotonic (constant tension through rom-range of motion) basically but not exactly like free wts.
Most effect on weakest point •isometric (no movement) •isokinetic (motion is at aconstant speed but the force varies) requires complicated special equipment but does strengthen the muscle through its entire range equally.
Dr. David Hardin
Dr. David Hardin
Thank
Dr. Stephen Southard
Internal Medicine
In brief: Are you asking
What the difference between the two are? Isometric movements are muscle contractions without actual shortening in the length of the muscle, like when you tense your arm.
Isotonic exercises involve muscle contractions under constant unchanging tension.

In brief: Are you asking
What the difference between the two are? Isometric movements are muscle contractions without actual shortening in the length of the muscle, like when you tense your arm.
Isotonic exercises involve muscle contractions under constant unchanging tension.
Dr. Stephen Southard
Dr. Stephen Southard
Thank
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