A 4 kg Gada Is Not a 4 kg Weight

The first time most people pick up a gada, they pick up the wrong one.

Someone who deadlifts twice their bodyweight looks at a 4 kg mace, decides it is a warm-up toy, and holds it out in front of them. Fifteen seconds later the forearm is shaking and the mace goes back on the rack.

A dumbbell tells you almost everything about itself in one number, because a dumbbell keeps its mass in your hand. A gada keeps its mass at the far end of a long handle. Every mace brand on the internet, including this one, says some version of "the weight is offset, so your body works harder." Almost nobody shows the arithmetic, so here it is.

What a 4 kg gada actually asks for

Take a 4 kg gada with its balance point 60 cm beyond your front hand, held out horizontally, hands about 25 cm apart. The torque your hands resist is mass times gravity times distance:

4 kg × 9.81 m/s² × 0.60 m = 23.5 newton metres

Your hands supply that as a pair of opposing forces, plus enough net lift to hold the thing up. Front hand pushes up with about 133 N, roughly 13.6 kg of force. Rear hand pulls down with about 94 N, roughly 9.6 kg.

Your front hand is carrying 13.6 kg of force to support a 4 kg object, while your other hand actively pulls the opposite way.

Compare rows two and three. Same mace, rear hand brought 5 cm closer, and the load through each hand jumps 18 to 25 percent while the mace exerts exactly the same torque. Your grip width decides how two hands split one job. It does not change the job.

Try that hold one-handed and the wrist absorbs all 23.5 N·m alone. For scale, a study of 345 people found a model prediction of roughly 7.5 N·m maximum wrist flexion torque for a 27 year old woman of 164 cm (Decostre et al., 2015). Men produce more, and a mace loads the wrist off that axis, so the numbers are not directly comparable. The gap is still the reason a gada is swung in an arc rather than held at arm's length.

Swinging is a different problem

Once the mace moves, rotational inertia takes over, and it scales with the square of the distance from the axis. A 4 kg dumbbell at arm's length sits about 60 cm from your shoulder: 1.44 kg·m². The same 4 kg in the gada head above orbits 1.2 m out: 5.76 kg·m². Four times the resistance to being started and stopped.

Which is what catches strong people. The cost in a mace swing is in the accelerations, reversing at the bottom of a 360 or catching the head behind the shoulders, not in the weight. Letting the head travel its arc instead of fighting it is load management, not style.

Three tools, three problems

Take 8 kg and put it in three shapes. Assume a gada balancing 65 cm past the front hand, a mudgar whose taper brings that in to 40 cm, and a samtola gripped near the middle at about 5 cm. Measure your own, but the pattern holds:

Thirteen times the torque from identical mass, purely from shape. A 2019 UC Irvine honours thesis on the history of the gada notes the same thing in passing, that the mudgar's conical shape gives a less dramatic weight distribution and a less intense exercise (Burdette, Weights of the World). A historian's remark rather than a measurement, but it matches the arithmetic.

Low torque does not make the samtola easy. Its mass sits at both ends, so a 10 kg bar spanning 1.2 m carries roughly twice the rotational inertia of a plain bar of the same mass and length. Easy to hold still, hard to turn.

Measure your own in a minute

1. Balance the tool across one finger until it sits level. Mark that point.
2. Measure d, from the mark to your front hand.
3. Measure s, the gap between your hands.

Front hand load = mass × (d + s) ÷ s
Rear hand load = mass × d ÷ s

A 5 kg mudgar balancing 35 cm out with hands 20 cm apart puts 13.8 kg through the front hand and 8.8 kg through the rear. Run it on everything you own and the differences stop being a matter of opinion.

Why the grips exist

All of these fit the same head, and what changes is d, the term doing most of the work above. The Dharwad Grip puts your hand almost on top of an 8 kg mass and the torque collapses. The Warrior Grip gives a short tapered handle in between. The standard shaft puts you back at the full 51 N·m. Three different exercises from one head, switchable in under a minute.

What this changes about choosing a weight

Start lighter than your barbell instincts suggest. An 8 kg gada asks your front hand for nearly 29 kg of force through a wrist that has never been asked for anything like it. Most people new to the tool are better served by a 2 kg gada or a 5 kg adjustable mudgar. For rotation and core work instead of grip, a 5 kg adjustable samtola loads a different problem.

Move your hands before you buy heavier. Sliding both hands further from the head increases d and genuinely raises the torque. Choking up lowers it. Changing grips moves it further still. There is real progression inside a single mace, and most people should exhaust it first.

Judge a mace by its worst position. Anything feels manageable held vertically, where the torque is small. It climbs fast as the tool tips. Test horizontally before you buy.

What was in the akhara

Joseph Alter, an anthropologist at the University of Pittsburgh who has documented North Indian wrestling in detail, describes a typical akhara as an earthen pit, a hard floor, mugdals, gadas and nals for lifting, often a climbing rope and a mallakhamb. In his account of the wrestler Gama's training, the equipment includes a hundred pound grindstone and a "santola (wooden bar-bell made from a tree trunk)" (Alter, Iron Game History, 4(2), 1995). Alter spells it santola, the tool sold today is a samtola, and while a tree trunk is not machined rosewood, the names and the function line up.

What the list shows is a hall that kept several different shapes side by side rather than one implement in ascending weights. Whether anyone reasoned about that in terms of leverage is not something the record tells us, and there is no need to invent an answer.

Where this runs out

These are static calculations. A real swing adds momentum and centripetal force, and peak loads in a fast 360 are not the numbers above. They also say nothing about individual muscles. Greig and Wells found that once a hand grips and transmits external moments rather than simply squeezing, the link between hand force and forearm muscle activation weakens, and grip force becomes a misleading stand-in for tissue loading (Greig & Wells, Ergonomics, 2008).

That cuts against our own table as much as anything else. Force at the hand is not force in the tendon. Use these numbers to compare tools and pick a starting load, not to predict injury or measure how strong you are.

If you have been on the same mace for a year and it has stopped challenging you, the answer is probably not a heavier one. Try holding the one you have further from the head.