Health & Lifestyle
An A-Z of fitness, health and nutrition terms that you may come across on this website:
Absolute Strength: The maximum amount a person can lift in one repetition.
Accommodating Resistance: Increasing resistance Nautilus machines are said to provide accommodating resistance.
Acquired Ageing: The acquisition of characteristics commonly associated with ageing but that are, in fact, caused by immobility or sedentary living.
Active Stretch: Muscles are stretched using the contraction of the opposing muscle, (antagonist). For an example stretching the triceps, requires the biceps to contract.
Adhesion: Fibrous patch holding muscles or other parts together that are normally separated.
ADP (Adenosine Diphospahate): This provides energy for muscular contraction.
Aerobic capacity: Another term for maximal oxygen uptake (VO2 Max).
Aerobic Exercise: Activity in which the body is able to supply adequate oxygen to the working muscles, for a period of time. Running, cross-country skiing and cycling are examples of aerobic activities.
Amino Acids: Twenty- two basic building blocks of the body that makes up proteins.
Anaerobic Exercise: Activities in which oxygen demands of muscles are so high that they rely upon an internal metabolic process for oxygen, resulting in lactic acid build up. Short bursts of “all-out” activities such as sprinting or weightlifting are anaerobic.
Anaerobic Threshold: The point at which you begin working your muscles without oxygen, from an aerobic level, believed to be at about 87% of your Maximum Heart Rate.
Antioxidants: Vitamins A, C and E, along with various minerals, which are useful to protect the body.
Assimilation: The process in which foods are utilized and absorbed by the body.
Ballistic Stretch: A more vigorous stretch by using a swinging or bouncing motion suited only for conditioned athletes.
Barbell: Weight used for exercise, consisting of a rigid handle 5-7′ long, with detachable metal discs at each end.
Basal Metabolic Rate (BMR): Metabolic rate at rest, your bodies working output.
Bodybuilding: Weight training to change physical appearance.
Body Composition: The breakdown of your body make-up, i.e. fat, lean muscle, bone and water content.
Bone density: Soundness of the bones within the body, low density can be a result of osteoporosis.
Bulking Up: Gaining body weight by adding muscle, body fat or both.
Burn – As in “going for the burn”: In endurance exercise, working muscles until lactic acid build-up causes burning sensation.
Carbohydrate: Compounds that contain carbon, hydrogen and oxygen used by the body as a fuel source. Two main groups are sugars and starch.
Carbohydrate Loading: Increase consumption of carbohydrates in liquid or food form normally three days prior to an endurance type event.
Cardiovascular Training: Physical conditioning that strengthens heart and blood vessels, the result of which is an increase in the ability for your body muscles to utilize fuel more effectively resulting in a greater level of exercising.
Cellulose: Indigestible fibre in foods.
Cholesterol: A fat lipid which has both good and bad implications within the human body. Good being known as HDL and bad being LDL. Bad cholesterol is associated with heart disease and stroke, whereas the body requires cholesterol for the production of many steroid hormones.
Complete Proteins: Proteins that contain all the essential amino acids.
Cool Down: Moderate then light activity, normally followed by stretching.
Coronary Heart Disease: Diseases of the heart muscle and the blood vessels that supply it with oxygen, including heart attack.
Crunches: Sit-ups done on the floor with legs on bench, hands behind the neck.
Deficiency: A sub optimal level of either one or more nutrients, often resulting in poor health.
Dehydration: Excessive fluid loss from the body, normally from perspiration, urination, evaporation or being sick.
Delts: Abbreviation for deltoids, the large triangular muscles of the shoulder which raise the arm away from the body and perform other functions.
Disease Prevention: Altering lifestyles and environmental factors with the intent of preventing or reducing the risk of various illnesses and diseases.
Diuretic: A substance that aids the increase of urine excreted by the body.
Electrolytes: Capable of conducting electricity in a solution. Used in many body activities, potassium, sodium and chloride are all forms of electrolytes.
Endurance: Ability of a muscle to produce force continually over a period of time.
Enzyme: Helpful protein molecules, responsible for a multitude of chemical reactions within the body.
Ergogenic: Something that can increase muscular work capacity.
Essential Fatty Acids: Required by the body, however only obtainable from food sources, such as flaxseed oil and safflower oil.
Exercise: Activity done for the purpose of keeping fit and healthy.
Fat: Often referred to as lipids, or triglycerides, one of the main food groups, containing nine calories per gram. It serves a variety of functions in the body.
Fructose: Often used as a sugar substitute for diabetics, because of its low glycemic index. A healthier option than normal sugar, as fructose comes from fruit.
Glucose: The basic fuel of the body, the simplest sugar molecule and main sugar found in the blood stream.
Glycemic Index: A measuring system to find the extent of which various foods raise the blood sugar level.
Glycogen: The principle form of carbohydrate energy (glucose) stored within the bodies muscles and liver.
Hormones: Regulators of various biological processes through their ability to control the action of enzymes.
Hypertension: High blood pressure.
Hypoglycaemia: A common occurrence in diabetics, this is low blood sugar levels, resulting in fatigue.
Incomplete proteins: Proteins which are low in one or more of the essential amino acids.
Lactic Acid: A substance caused by anaerobic training of the muscles, a build up prevents continuation of exercise.
Muscle: Tissue consisting of fibres organized into bands or bundles that contract to cause bodily movement.
Muscle Tone: Condition in which muscle is in a constant yet slight state of contraction and appears firm.
Pecs: Abbreviation for pectoral muscles of the chest.
Power Lifts: Three movements used in power lifting competition; the squat, bench press and dead lift.
Progressive Resistance: Method of training where weight is increased as muscles gain strength and endurance.
Pumping Iron: Lifting weights.
Quads: Abbreviation for quadriceps, muscles on top of the legs.
Repetition: One complete movement of an exercise.
Reps: Abbreviation for repetitions.
Set: Fixed number of repetitions. For example, 10 repetitions may comprise one set.
Strength Training: Using resistance weight training to build maximum muscle force.
Upper Abs: Abbreviation for abdominal muscles above the navel.
VO2 MAX: The maximum amount of oxygen a person can utilize per minute of work.
Warm up: Light gradual exercises performed to get the body ready for physical activity.