Arm Workout With SISTER SIN's LIV JAGRELL (Video)

As part of Revolver magazine's ongoing "Metal Health" series, Liv Jagrell, vocalist of Swedish metallers SISTER SIN, demonstrates her favorite arm workout. Check out the two-minute clip below.

Jagrell, who works as a personal trainer when SISTER SIN is not on tour, was asked by Legendary Rock Interviews in a 2013 chat how much of her staying in shape is what she eats and how much is working out. She responded: "I would say it's about 70 percent what you eat and 30 percent working out. You can achieve much more by changing the diet than just working out normally. Of course, if you work out very, very hard, you can change that and achieve a lot more in your workouts. Most people just don't have that much time to dedicate to that and benefit more from shorter, good, focused workouts and changing their diet."

She added: "If you want to lose weight, the best thing to do is start to move your body but focus on changing your eating habits. If you want to be a stronger, healthier person aside from weight loss, you need to work out and train your body. Sometimes you don't want to lose weight; sometimes you just want to get stronger and be in better overall shape."

Asked if it is hard to find the time for anything while working as a certified personal trainer and touring or being in the spotlight as a metal singer, Liv said: "Yes, obviously, I am gone for a few months every year, and the band is most important to me, but it's hard to do that and keep up a client base without relying on other personal trainers. It can be hard to have another job on the side and combine it with music, but we try. It is nice to be able to make a little bit of money, and living off of music, and that is our dream, because it is hard to do two jobs at the same time."

Regarding what she thinks about the new trend towards virtual physical training through web sites and webcams, and if that is something that is going to continue to grow, Liv said: "I would really, really love that and would hope that it would continue to grow. I have not had that much luck yet with it, but I have hope that it could be a thing in the future because I still want to help people with getting fit and training because I like that very much."

She continued: "I have a very hard time always being able to be at the gym, but if I can do it online and help people like that, I can be much more of a support to people.

"I love music — music is the main part of my life — but I still love all the other components of personal training and helping people change their lives and their bodies too.

"It's a nice feeling to be able to help people."

SISTER SIN's fifth studio album, "Black Lotus", was released on October 27, 2014 via Victory.