To find a doctor, call 800-667-5356 or click below:
Find a Doctor
Request an Appointment
En Español (Spanish Version)
Bone is living tissue that is constantly undergoing a process called remodeling. In remodeling, cells called osteoclasts are breaking down old bone, as cells called osteoblasts are replacing it with new tissue. Many factors can affect the remodeling process and leave you with bones that are less dense and more fragile.
Regular weight-bearing and resistance exercise helps build muscle, as well as maintain and increase bone strength. Exercise causes the muscle to contract against the bone. This action stresses or stimulates the bone, and the bone becomes stronger and denser. The three main types of exercise are:
Before starting any type of exercise program, check with your doctor about any possible medical problems you may have that would limit your exercise program.
Last reviewed May 2012 by Brian Randall, MD
All EBSCO Publishing proprietary, consumer health and medical information found on this site is accredited by URAC. URAC's Health Web Site Accreditation Program requires compliance with 53 rigorous standards of quality and accountability, verified by independent audits. To send comments or feedback to our Editorial Team regarding the content please email us at
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
© 2013 Beth Israel Deaconess Medical Center
330 Brookline Avenue, Boston, MA 02215
617-667-7000 | TDD: 800-439-0183 | Maps & Directions