After age of around 30, women lose about 3 to 8% of their muscle mass per decade, and this rate of loss is even higher after the age of 60.
Fitness training programmes can be designed to develop one or a number of aspects of physical fitness. There is fitness for cardiovascular (heart/lung) efficiency, for strength, speed, increased range of movement, muscle endurance, power, agility and balance.
Each aspect of fitness involves varying contributions of the energy systems. Which type of fitness is important will depend on the needs of the individual. This is where experience counts on getting the results for the client’s needs knowing which areas of the energy systems (e.g. Anaerobic or Aerobic systems) to work most effectively to get the best results and reach the clients goals.