Your max VO2 is the maximum amount of oxygen you can use up while exercising. It’s an accurate measure of one’s aerobic or cardiovascular fitness.

This pertains to the three macronutrient groups: carbohydrates, protein, and fats. Maintaining the appropriate balance among your macros is one of the keys in achieving your fitness goals.

Low-density lipoprotein is called the bad kind of cholesterol because too much of this cholesterol can block your arteries. Physicians have associated high LDL levels with cardiovascular issues which include stroke and heart attack.

This is an acronym for “low-intensity steady state.” Doing activities of this nature such as walking, hiking, or cycling can help fitness enthusiasts (including beginners) achieve their long-term health goals.

Lifestyle activities or lifestyle exercises pertain to physically active tasks rather than sedentary ones. For instance, choosing the stairs instead of the elevator is a lifestyle activity that will help boost your cardiovascular function and overall health.

This is synonymous with lean body mass, which is your body’s total mass without the fat mass. When computing for one’s lean mass, the muscle mass, organs, and skin are included.

The goal of lean bulking is to maximise hypertrophy or muscle growth while keeping fat gain to a minimum. To achieve this, an individual typically adds five to 10 percent of his caloric intake to his daily meals and snacks.

This refers to your body’s total mass less the fat mass. Your lean body mass includes your muscle mass, body water, bones, skin, and organs. It is also called lean mass.

This acronym stands for “lactic acid threshold training.” The goal of this type of training is to crank out intense reps until you reach your lactic acid or anaerobic threshold.

A lagging body part simply means a body part that hasn’t progressed as much as other body parts or muscle groups. For instance, if your calves are underdeveloped, they’re your lagging body parts.

Also known as the anaerobic threshold, this is the point where intense exercise results in more lactic acid accumulation than disposal. Lifters typically experience extreme discomfort during a lactic threshold.

Lactic acid is the byproduct of glycolysis, the production of energy during intense anaerobic or strength training. If you feel an intense burning sensation during your training session, it’s most likely due to a lactic acid buildup.

This is an intense and heavy squat which can make your knees buckle. If a person is not used to this compound movement, it can make his knees wobble.

You’re killing it at the gym when you are conquering your lifts and establishing PRs with reckless abandon; when you’re on a roll and breezing through your exercise program.

Ketosis is a state where your body doesn’t have enough carbs to burn for energy. Instead, your body uses fats as a fuel source. When you reach ketosis, you have ample amounts of ketones for energy. In the long run, you’ll also lower your caloric intake and increase fat loss.

This is a way of measuring one’s overall fitness level by computing the target heart rate. To do this, you deduct your resting heart rate from your maximum heart rate. You then multiply this by the intensity (in %). Finally, you add this product to the resting heart rate.

In an isotonic exercise, joint movements and muscular contractions occur during the same repetition. The tension remains the same throughout the movement. Examples of isotonic exercises include bicep curls and push-ups.

When you do isometric exercises or static strength training, you target your intended muscle groups while maintaining a stationary position. Classic examples include planking and various yoga poses.

Isokinetic exercises are movements performed at static speed with resistances equal to the force of that particular speed. This is a physiotherapy method which typically uses equipment such as resistance bands and stationary bikes.

This refers to the inward direction of the rotational movement that you make with your arms and legs. When you rotate your upper arms toward your torso whilst keeping them close to your sides, you also round your upper back.