The age related loss of muscle and bone (sarcopenia) can creep up on us and before we know it, we can be in a bad situation, with bones that are very fragile and susceptible to breaks (osteoporosis).
Osteoblasts are the cells that form new bone growth.
Osteoclast cells break down old bone.
You get a new skeleton every 7-10 years.
We need muscle strength and strength training to promote osteoblast cell activity.
If we lose muscle, the skeleton simply continues to weaken without new cell growth.
ONLY strength training can help this situation.
It can even reverse bone loss.
Cardiovascular exercise does NOT help.
So to win the fight, strength training (progressive resistance exercise) is a must.
One to two sessions per week, train to deep muscle fatigue, and be progressive with the weights.