When you're choosing a personal trainer certification look for an organization with a long history and NCCA accreditation.

Sub-maximal aerobic fitness tests include the Rockport Walk Test, the 1-mile jog and and the YMCA cycling test.

Glove weight depends on the boxer's weight class, with heavier boxers wearing heavier gloves and lighter boxers wearing lighter gloves.

Luckily, you can take certain measures to combat excess fat around your waist such as increasing your cardiovascular activity level and watching your diet. Additionally, certain toning and strengthening exercises will help you achieve a smaller, more toned waist.

When discussing the amount of weight being lifted during the bench press exercise, it is important to know if the weight of the bar is being taken into account along with the plates it holds.

All you need is your own body to achieve a challenging workout. Squats and push-ups work your upper and lower body.

Lactic acid training is used by body builders and other athletes who want to lose weight quickly but also gain muscle and endurance. A variety of exercises can be included as part of lactic acid training, but all of them involve pushing your body to its limits using resistance training.

If you're not a morning person, the struggle is real to get out of bed, much less work out. Here are 8 energizing yoga moves you can do IN bed. It's a win-win.

Seven years ago, not many people had heard of CrossFit, let alone participated in any sort of CrossFit Workout of the Day (a.k.a. WOD). Today, CrossFit has become one of the fastest-growing sports. There are currently more than 10,000 affiliate gyms, (called “boxes” in CrossFit lingo), up from just 13 in 2005.

As you train your muscles adapt, becoming more efficient at utilizing fuel and producing energy, so you can run, bike and swim longer.

Ancient yoga tradition describes thousands -- and by some accounts, tens of thousands -- of yoga postures. But chances are, with your likely packed schedule, fitting in enough time to practice even a fraction of those postures is nearly impossible.

Here are five things you'll need to know to stay safe before heading out on a run this summer, especially if you're a nighttime runner.