Many golfers have probably heard statements such as, “Heavier people hit the ball farther,” or “If you build a bigger body, your driving distance will increase.”
Indeed, body weight may appear to have some relationship with driving distance.
However, the conclusion is that while body weight may be indirectly related to driving distance, distance is not determined by body weight alone.
〇What Determines Driving Distance?
The direct factors that determine driving distance in golf are clubhead speed, smash factor, launch angle, and spin rate.
Body weight itself does not directly improve these factors.
Rather, body weight can be considered an indirect factor that influences one’s ability to generate force and use ground reaction force effectively—that is, power.
〇The Relationship Between Body Weight and Power
So, what exactly is power? In formula form,
Power = Force × Velocity.
If we break it down further,
Force = Mass × Acceleration.
Looking at these formulas, one might wonder, “If greater mass produces greater force, wouldn’t a heavier person hit the ball farther?”
However, the important point here is that,
in golf, the “mass” being accelerated is not body weight itself, but the club.
If we were to describe power in golf, it would include:
- The force used to push against the ground just before impact
- The speed of swinging the club quickly while using rotational movement of the trunk during the swing
These two elements determine head speed.
Body weight itself does not collide with the ball. The body is simply the “engine” that accelerates the club, and an important factor influencing head speed is how fast the club can be moved—that is, its acceleration.
Certainly, having more body weight can make it easier to press into the ground during the swing, and by transferring that ground reaction force to the club, clubhead speed may increase as a result. However, this does not necessarily translate directly into the ability to move the club faster.
Therefore,
it is not simply “heavier = farther.”
What matters is the balance between “the body mass you can move effectively” and “acceleration.”
Then why, in general, do men tend to hit the ball farther than women?
〇Why Men and Women Differ in Driving Distance
There are three main physical reasons for this.
- 1. Greater muscle mass
- 2. Higher power output capacity
- 3. Larger skeletal structure and longer limbs
After puberty, men tend to develop greater muscle mass and a larger skeletal frame due to the influence of testosterone. As a result, they generally have greater strength, explosive power, and a larger lever arm (rotation radius).
Compared with women, men also tend to have more muscle mass overall, especially in the lower body, trunk, and upper body, which contributes to greater power output. In addition, not only absolute strength but also the ability to produce force quickly—power—is generally considered higher in men.
Research has also reported that the factors most strongly correlated with clubhead speed are upper-body explosive strength and jumping ability.
For these reasons, men, who generally have greater upper- and lower-body strength and power than women, tend to achieve greater driving distance.
〇Summary
What is necessary to increase driving distance is not simply gaining body weight, but developing strength, power, and swing mechanics that match your physique.
Body weight is not a “limit” that determines distance, but merely one aspect of an individual’s physical characteristics. When you can efficiently transfer the strength and power you already have into the ball, your driving distance will naturally improve.
Author
Minori Nakayama, Physical Therapist
Ikejiri-Ohashi Sera Clinic
Supervised by
Yasushi Sera, Physician
Ikejiri-Ohashi Sera Clinic
Ikejiri-Ohashi Sera Clinic