Strength is crucial for longevity
Why is this important? Because with age we loose muscles. You get peek body performance at age 25. Later everything is declining. You loose 2-8% muscles every decade. At age 75 you can have 50% of your muscles from when you were 25 years old.
Falling is the fifth biggest cause of death when you are 75 years old. Most people don’t fall when they walk up but when they walk down. They often lack eccentric strength muscle control.
Beth recognizes three main areas to focus on:
hands and grip,
Grip strength is the highest correlate of longevity in primates
lower body strength,
focusing on building strength in the following three areas: concentric (firing while shortenning), eccentric (firing while elongating), isometric (holding muscle in one spot).