The participants in this series are using elastic resistance bands, which are available at most sporting goods stores. Before using the elastic band, inspect it for safety. Make sure that the elastic band is wrapped firmly (but not too tight!) around your fists. Adjust the length of the band so that there is just enough slack/elastic resistance and you are able to go through the full or comfortable range of motion when exercising.
If you don't have an elastic band, you may use other equipment such as elastic tubes, free weights. You can also use items you can find at home, like, bottled water, a can of soup, an iron, etc., just like you would use free weights.
Exercise a minimum of five days a week, ideally performing strengthening exercises
3 to 4 days a week. Give your muscles a day's rest between strength training
sessions. Your muscles may feel sore a day or two after you've started a new
exercise. IF you are sore, wait until soreness has diminished before going
back to strength training. Consult with your doctor if the muscle soreness
lasts longer than two days. In addition, if muscle soreness last 2-3 hours after
exercise, you know you have done too much. During the next exercise session,
decrease the number of repetitions, sets, or weight until you find the right
settings for you.