maintaining, or pertaining to, the same length; of equal dimensions. isometric contraction. muscle contraction without appreciable shortening or change in distance between its origin and insertion. isometric exercise. active exercise performed against stable resistance, without change in the length of the muscle.
(Functional foods are those with added nutrients, such as calcium-enriched orange juice.). Hereâs a list to take on your next heart-healthy trip to the supermarket: 1  Produce: Look for colourful fruits and vegetables: berries, oranges, apples, yams, broccoli, spinach, peppers, and more. 2  Cholesterol-free and low-fat, fruits and vegetables are the foundation of any heart-healthy diet.
Here are some recommendations for heart-healthy eating: 1  Eat fish at least twice a week. 2  Cold-water fish (such as albacore tuna, mackerel, salmon, herring, and lake trout) contain omega-3 fatty acids that can help lower your risk of coronary artery disease. 3  Choose lean meats and poultry without skin.