“…It has been reported that midlife physically strenuous work, excess body weight, smoking, and the presence of chronic conditions predict frailty and poorer muscle strength in later life 9,10 , and high body mass index (BMI), low handgrip strength, impaired squatting and running difficulties predict walking limitations 11 . Physical inactivity in leisure time earlier in life correlates with later life physical functioning and frailty 12,13 , but the type of physical activity (PA) modifies the associations 14,15 . A study by Hinrichs at al.…”