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Episode
Why Are Pull-Ups So Hard for Women? Female Anatomy, Strength & Upper-Body Training
~4 min
Episode Brief·YouTube

Why Are Pull-Ups So Hard for Women? Female Anatomy, Strength & Upper-Body Training

Stacy Sims
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TL;DR

The four things you'd lose by not watching

4 items

TL;DR

The four things you'd lose by not watching

4 items
1

Women's lower center of gravity (near belly button vs. men's mid-chest) and shoulder girdle width make pull-ups harder; using a wider grip activates lats instead of just shoulders.

2

Eccentric training (jumping pull-up with slow descent) builds pull-up strength and also improves wall ball performance by strengthening the isometric catch.

3

Women are born with more oxidative/endurance muscle fibers, giving them an advantage in longer-duration movements like high-rep wall balls in Hyrox/CrossFit events.

4

Placing heavy strength work early in a workout benefits women, as they can potentiate and then rely on endurance as the event progresses.

Protocols

Concrete recipes — what, when, how much, and why

3 items

Wider Grip Pull-Ups for Women

WhatUse a grip wider than shoulder-width when performing pull-ups to better activate the lats.
WhenDuring pull-up training sessions.
For whomWomen, especially those struggling with pull-ups.
WhyWomen's shoulder anatomy and lower center of gravity make a wider grip more effective for lat engagement, reducing reliance on smaller shoulder muscles.

Standard pull-up coaching often prescribes hands shoulder-width apart. However, Stacy Sims explains that women's center of gravity is lower (near the belly button) and their shoulder girdle width differs, making the standard grip less efficient. By going wider, women can shift the load to the lats, which are stronger and better positioned for the movement. This simple adjustment can make pull-ups more achievable.

Mechanism

A wider grip changes the angle of pull, allowing the larger latissimus dorsi muscles to contribute more, compensating for the biomechanical disadvantage of a lower center of gravity.

for women, going wider, you want to go wider so you can actually activate the lats instead of just the shoulders.

Also said
“center gravity for women is lower. So you are having to pull a bit more of the weight up than men do.”— Explains why standard grip is suboptimal.

Eccentric Pull-Up Training

WhatPerform jumping pull-ups followed by a slow, controlled descent (eccentric phase).
WhenAs part of pull-up progression or strength training.
DoseSlow descend, repeated for multiple reps; no specific sets/reps given.
For whomWomen aiming to achieve pull-ups or improve wall ball performance.
WhyEccentric training builds strength effectively for the pull-up movement and also improves isometric strength for wall balls.

Stacy recommends incorporating eccentric work by jumping to the top of the pull-up position and lowering as slowly as possible. This method is particularly effective for women because it addresses the strength deficit without requiring a full pull-up initially. Additionally, she notes that this eccentric and isometric strength carries over to wall balls, where the athlete must catch the ball and momentarily hold it before the next throw. Thus, this protocol serves dual purposes.

Mechanism

Eccentric contractions cause muscle damage and adaptation, leading to strength gains. The slow lowering phase also trains the muscles to handle load in a stretched position, which is critical for the initial pull from a dead hang. For wall balls, the catching phase is an isometric hold; eccentric training enhances that static strength.

if we do a lot of eccentric work where we're doing a jumping pull-up and a slow descend, we're going to gain a lot of strength that way and facilitate getting into more pull-ups.

Also said
“a lot of eccentric work helps with the wall ball because you're catching and kind of an isometric hold before you throw it again.”— Highlights the crossover to wall balls.

Isometric/Eccentric Wall Ball Practice

WhatFocus on the catching phase of the wall ball as an isometric hold, and use eccentric training to strengthen that position.
WhenDuring wall ball practice or as part of eccentric training.
For whomWomen who find wall balls shoulder-dominant.
WhyImproving isometric strength at the catch reduces shoulder fatigue and makes high-rep wall balls easier.

Stacy explains that the wall ball movement involves catching the ball and holding it momentarily before the next throw. If an athlete is weak in that isometric hold, the shoulders fatigue quickly. Eccentric work, such as slowly lowering a medicine ball from the catch position, can improve this. This protocol is especially beneficial for women, who may have less upper body strength but can leverage endurance and isometric training to perform high-rep sets.

Mechanism

The wall ball catch requires a brief isometric contraction to decelerate the ball; training this phase eccentrically (e.g., slow lowering of a medicine ball) builds strength and endurance in the shoulder stabilizers.

if you're strong in that isometric and eccentric work makes the wall ball a lot easier.

Also said
“a lot of eccentric work helps with the wall ball because you're catching and kind of an isometric hold before you throw it again.”— Directly states the benefit.

What's new

Personal practice updates, fresh positions, predictions

3 items

pull-up-anatomy

Women's lower center of gravity and shoulder girdle width make pull-ups harder; a wider grip activates lats more effectively.

Why this matters: Challenges conventional pull-up coaching that uses shoulder-width grip for everyone.

Background

Many women struggle with pull-ups despite training, often due to anatomical differences not addressed in standard programming.

Stacy Sims explains that women's center of gravity is lower, around the belly button, compared to men's which is mid-chest. This means women have to pull more of their body weight upward. Additionally, women's shoulder girdle width affects leverage. Standard pull-up instruction often places hands shoulder-width apart, but for women, a wider grip allows better lat activation rather than relying on smaller shoulder muscles. This anatomical insight suggests that women should adjust grip width to improve pull-up performance.

for women, going wider, you want to go wider so you can actually activate the lats instead of just the shoulders.

Also said
“center gravity for women is lower. So you are having to pull a bit more of the weight up than men do.”— Explains the biomechanical disadvantage.

eccentric-training

Eccentric work like jumping pull-ups with slow descents builds strength for pull-ups and improves wall ball performance by enhancing isometric catch strength.

Why this matters: Provides a dual-purpose training method for two common Hyrox/CrossFit movements.

Background

Women often find wall balls shoulder-intensive; eccentric training addresses both pull-up progression and wall ball efficiency.

Stacy recommends eccentric training for women aiming to improve pull-ups: jumping up to the bar and lowering slowly. This builds strength in the lengthening phase, which is crucial for pull-ups. She also notes that the same eccentric and isometric strength transfers to wall balls, where catching the ball involves an isometric hold before the throw. Thus, eccentric work not only helps achieve pull-ups but also makes wall balls less shoulder-dominant and more manageable.

if we do a lot of eccentric work where we're doing a jumping pull-up and a slow descend, we're going to gain a lot of strength that way and facilitate getting into more pull-ups.

Also said
“a lot of eccentric work helps with the wall ball because you're catching and kind of an isometric hold before you throw it again.”— Shows crossover benefit.

endurance-fibers

Women are born with more oxidative/endurance muscle fibers, making them more efficient as workouts lengthen, explaining why elite women can do high-rep wall balls unbroken.

Why this matters: Counters the stereotype that women are weaker; highlights a physiological advantage in endurance contexts.

Background

In Hyrox/CrossFit, observers note that elite women often outperform men in high-rep wall ball sets; this is attributed to fiber type distribution.

Stacy points out that women have a higher proportion of type I (oxidative) muscle fibers from birth, giving them greater endurance. In events like Hyrox competitions where movements become longer, women's endurance allows them to maintain performance while men may fatigue faster. This explains why many elite female athletes can perform 100 wall balls unbroken, whereas men struggle more. The heavy strength elements placed early in a workout benefit women because they can potentiate and then rely on endurance later.

women are more endurance. We're born with more of the oxidative or endurance type fibers.

Also said
“as a race goes on and the movements get longer, we get better.”— Directly links fiber type to performance.

Notable quotes

Lines worth pulling out — contrarian, specific, or perfectly phrased

5 items
center gravity for women is lower. So you are having to pull a bit more of the weight up than men do.
Clear, concise explanation of a key anatomical difference.
for women, going wider, you want to go wider so you can actually activate the lats instead of just the shoulders.
Actionable coaching cue that challenges standard advice.
women are more endurance. We're born with more of the oxidative or endurance type fibers.
Highlights an inherent physiological advantage often overlooked.
as a race goes on and the movements get longer, we get better.
Memorable summary of the endurance advantage.
if we do a lot of eccentric work where we're doing a jumping pull-up and a slow descend, we're going to gain a lot of strength that way and facilitate getting into more pull-ups.
Specific training recommendation with clear rationale.

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Topics covered

pull-upsfemale-anatomycenter-of-gravityshoulder-girdlelat-activationeccentric-trainingwall-ballsisometric-holdendurance-fibersoxidative-fibershyroxcrossfitupper-body-strengthwomen-endurancehigh-rep-training
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