Many articles written today suggest weight training two to three times per week. Just what is considered "weight training?"
Weight training (WT) is usually a generic term for resistance training (RT). There are several forms of RT: calistenics-gymnastics, using medicine balls, surgical tubing and other weighted objects, pnuematic-air dyne machines, water-pool-ocean and the standard weight machines, barbells, dumbells and plates. We can also take into consideration climbing objects, running uphill or in mud, sand or snow and whatever else your imagination can think of that provides resistance.
The frequency in which RT takes place is always in question. It really depends on the needs of the person. If strength and power are essential to them, then RT will or should happen more frequently, maybe three to five times per week. If a person is looking to gain some type of strength fitness, then less is adequate, such as one to three times per week. If a person is older (>60 years) and has no fitness level, then perhaps once or twice a week is enough to start.
The ability to recover from RT is a large part to how often an individual might workout. The intensity and duration of the workouts will also play a role in the program design. Aerobic activities on top of RT will also have an effect on the recovery potential.