There are a lot of perks that come with lifting weights, such as an increase in bone mass and lean muscle mass, a reduction in body fat, improved cardiovascular fitness, strength, and an enhanced sense of well being, according to a 2006 article in the British Journal of Sports Medicine.
If losing body fat and building muscle caught your eye, there are a few important things you should know. The first is, yes, you have to lift heavy if you want to build muscle. “Lifting heavy will build muscle because the muscles are being placed under greater stress than [using your] bodyweight or light weights,” Felix Ferreira, NASM-certified trainer at Equinox in New York City, told POPSUGAR. “The heavier weights cause more muscle fibre tears, and these tears, once repaired, will cause an increase in size and strength,” he added.
Second, the word “heavy” is relative, and the amount of weight everyone should lift to build muscle will vary. As an NASM-certified trainer myself, it’s important to let you know that you won’t automatically gain muscle by grabbing any ol’ weight at the gym. Instead, you’re going to have to be very strategic with how often you lift, how heavy you lift, and the style of lifts you’re doing.
“Typically, a person can aim to build muscle by exercising with heavy weight anywhere from three to four times per week,” Felix said. For people who have never lifted before, I generally advise beginning with two to three strength sessions a week in order to get acclimated to the load and stress on the body. Most importantly, I don’t want clients feeling so sore that it’s hard for them to move a few days after a strength session. For people who are more conditioned, I recommend doing a minimum of three strength sessions a week.
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