Muscular fitness is another key component of a fitness training program. Strength training at least twice a week can help you increase bone strength and muscular fitness. It can also help you maintain muscle mass during a weight-loss program.
Most fitness centers offer various resistance machines, free weights and other tools for strength training. But you don't need to invest in a gym membership or expensive equipment to reap the benefits of strength training.
Hand-held weights or homemade weights — such as plastic soft drink bottles filled with water or sand — may work just as well. Resistance bands are another inexpensive option. Your own body weight counts, too. Try pushups, abdominal crunches and leg squats.