Hand strengthening exercises include household and sports exercises. Household activities that increase hand strength include:

handwash;
chopping wood;
performing a massage;
garden work using a shovel, chopper, rake, scythe and other equipment;
carrying weights in the hand;
dough kneading.
Unfortunately or fortunately, but most of us have long been cut off from subsistence farming and the above actions are performed extremely rarely. To increase the endurance of the hand, develop the flexibility of the fingers and build up the muscles of the forearm, you need to perform special exercises for the hands. Warm-up. Squeeze and unclench your fingers. The first 10 times, focus on squeezing, the next – on unclenching. Then squeeze your fingers in turn, starting with the little finger. Clench your hands into fists and twist your brushes, first in one direction, then in the other direction.
Place your palm on the table, spread your fingers. Raise each finger in turn, making sure the others remain pinned to the table.
Squeeze your hand into a fist. Alternately straighten and squeeze back one finger at a time. Such exercises for the hands develop not only strength, but also coordination.
A simple carpal expander will help develop the muscles of the hand and forearm. This is a tight rubber ring that needs to be squeezed by hand. By doing hand exercises several times a day, you can quickly strengthen your wrists.
Well trains the brush hanging on the horizontal bar with a direct grip.
Exercises for the muscles of the hands are performed with dumbbells or a pancake. Taking a dumbbell by the free end, bend and unbend the brush, then make rotational movements.
Pinch grip strength is developed by holding a weight between the thumb and other fingers. To do this, you need a pancake weighing from 5 kg. It is held with the fingertips for the maximum time. As you train, increase the weight.
Good grip exercises with weights. For a more effective load, the kettlebell is held on an outstretched arm, both hands are involved. In this position, they walk around the room.
Physically developed people are advised to train the hand during push-ups. Start with finger push-ups, then move on to fist push-ups.
Exercises for the hands are quite versatile. They can be performed at home and in the gym. For their implementation, special equipment or assistants are involved. funds. You can do them even in a public place, for example, by strongly squeezing a ball of hard material – wood or metal – in your palm.