In its most general meaning, physical fitness is a general state of good physical health. A person with a physical impairment may be physically fit and healthy, though their performance on tasks requiring full bodily function in the area of impairment will be affected.

Physical fitness is a result of regular physical activity, proper diet and nutrition, and proper rest for physical recovery within the parameters allowed by the genome.Pregnant Yoga students: Listen to your body. Take it easy, and do not push yourself beyond your limits. At the same time, if you are used to being physical active in your pre-pregnancy life, are in good physical condition, and have your doctor's permission to exercise, do not be afraid to give yourself an actual workout. Don't be afraid to question your instructor. If it does not feel good, don't do it - even if the instructor tells you it is okay. Conversely, if something feels good, it is probably okay. However, take any of your concerns, or those expressed by your instructor, seriously enough to double check with your doctor or midwife. Too make things even more complicated, health professionals are not always in agreement either. So, when in doubt, we must all navigate sometimes contradictory advice to make as an informed choice as possible.

A human may be said to be physically fit to perform a particular task with a reasonable efficiency, for example, fit for military service. Fitness testing is conducted for fire fighters and police officers to determine if they are capable of the physically demanding tasks required for the job before they are employed.

I have been a student of yoga for 11 years now. Usually I will take about two classes a week and alternating with other forms of exercise, such as walking or karate, but during my three pregnancies I have taken as many as 4 yoga classes per week, especially near the end. Whether pregnant or not, I have found yoga practice to be very beneficial. I sleep better, I feel better, and I'm more flexible. There are no pregnancy yoga classes in my area, but I have studied with more than a dozen instructors over the years, many of them certified in teaching yoga to pregnant women. I have been given some very strange and contradictory advice over the years -- some of the strangest coming from the instructors so certified.