fixation BARRE DE TRACTION MUSCULATION PULL UP BAR 500

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During the lockdown, upgrade your grip strength by following this simple method. Simply grab a handful of screws, an old wooden plank, and a curtain rod. Place the plank on a stable surface and hold it firmly with both hands, making sure to keep your arms straight. Now, take one screw and place it in a hole drilled into the plank, about an inch from the edge. Hold the screw tightly with your fingers and start to pull upwards, keeping your arm straight and using your forearm muscles to lift the weight. As you pull, focus on squeezing the plank tightly between your hands, making sure not to let go. Repeat this process several times, gradually increasing the amount of force you use to pull the screw out of the hole.