Limit all activity when the count is less than 15,000. When platelets are 15 to 20, you may do gentle exercising that does involve resistance. This could include exercising while sitting or standing, gentle stretching or taking an easy walk. A platelet count of 20 to 40 allows you to use some light resistance, such as weights or latex bands. You can walk faster and climb stairs. At platelet levels of 40 to 60, add exercises such as stationary cycling and golfing. Higher levels, that are still considered too low, allow for aerobic exercise such as biking and jogging, but require wearing proper gear and taking caution against injury.