Grip Strength and Loaded Carries
Why farmer's carries are one of the most functional ways to train grip.
Before this: The Forearms & Hands: An Overview
You will be able to
- Explain why the finger flexors, not the wrist flexors, are most responsible for grip strength.
- Describe why loaded carries train grip endurance specifically.
- Identify a role the wrist extensors play during heavy gripping.
Grip is mostly about the fingers
While the wrist flexors bend the wrist, it's the finger flexors — with tendons running all the way to each fingertip — that actually close the hand around an object. Grip training targets these muscles most directly.
Why the wrist extensors matter too
A stable, slightly extended wrist lets the finger flexors generate more force efficiently. This is why the wrist extensors work hard (isometrically) during heavy gripping, even though they don't produce the gripping action itself.
Carries: a simple, effective grip builder
The farmer's carry demands a sustained maximal or near-maximal grip for an extended time — directly training grip endurance — while also challenging total-body posture and stability, making it a popular, efficient exercise beyond just the forearms.
Sources for this lesson
“The finger flexor muscles are primarily responsible for grip force, while the wrist extensors stabilize the wrist to support that force.”
Anatomy and Physiology 2e — OpenStax, Rice University · Ch. 11.5 Muscles of the Pectoral Girdle and Upper Limbs
Peer-reviewed textbook · License: CC BY-NC-SA 4.0 · Last checked 2026-07-19
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