Kriti Sanon’s hot girl summer workout promises toned arms and a strong upper body to tackle the day’s tasks. In a recent post shared by her fitness trainer, Karan Sawhney, the Cocktail 2 actor could be seen performing a dumbbell routine, including shoulder presses and reverse flys. Shreedhar R, fitness expert at Cult, shared that dumbbells improve muscle strength, enhance functional fitness, balance, and coordination by working each arm independently, reducing muscle imbalances, and engaging the stabiliser muscles. “For a shoulder press, hold a dumbbell in each hand at shoulder height, palms facing forward. Press the weights overhead, then slowly return to the starting position. It engages the shoulders, triceps, and upper chest, improving upper-body stability and reach. Engage your core for stability,” he told indianexpress.com. The other variation is a chest press, if you are working with heavier weights. For this, he recommended lying on a bench or the floor with a dumbbell in each hand.…