Filed under: Aerobic, Essays, Physical, Programs, Trainer — arlene @ 10:12 pm
Rope jumping is aerobic if done at a slow or moderate pace, but is anaerobic if done vigorously. One study shows that typical exercisers jump very briskly, and for this reason, cannot maintain the jumping continuously. Even those who are highly trained or who jump at a moderate pace find it difficult to continue this exercise long enough to build cardiovascular fitness because of leg fatigue, high heart rate, or loss of interest in the activity. To be most effective, a continuous routine involving several different jump steps should be used in combination with other forms of exercise. For example, rope jumping could be a part of a circuit-resistance training program or a dance aerobic routine. (more…)
Filed under: Essays, Family, Muscle, Trainer, Women — arlene @ 12:45 am
There is no ideal standard for flexibility.
It is not known how much flexibility any one person should have in a joint. There are test norms available that list how hundreds of subjects of various ages, of both sexes, and in many walks of life have performed. But there is little scientific evidence to indicate that a person who can reach two inches past his or her toes on a sit-and-reach test is less fit than a person who can reach eight inches past the toes. Too much flexibility could be as detrimental as too little.
Lack of use, injury, or disease can decrease joint mobility.
Arthritis and calcium deposits can damage a joint, and inflammation can cause pain that prevents movement. Failure to move a joint regularly through its full range of motion can lead to a shortening of muscles and ligaments. Static positions held for longer periods, such as in poor posture, working postures, and when a body part is immobilized by a cast, lead to shortened tissue and loss of mobility. Improper exercise that overdevelops one muscle group while neglecting the opposing group results in an imbalance that restricts flexibility. (more…)
Filed under: Aerobic, Muscle, Physical, Programs, Trainer, Women — arlene @ 12:39 am
Muscular endurance is the capacity of a skeletal muscle or group of muscles to continue contracting over a long period. When you have good muscular endurance, you have the ability to resist fatigue and you can hold a position or carry something for a long period. You also have the ability to repeat a movement without getting tired. (more…)
