This is a substudy of the Generation-100 study (NCT01666340). The aim of this study is to find critical values for (1) maximal oxygen uptake and (2) sedentary behavior, below which cardiovascular risk parameter clustering is apparent in an elderly Norwegian population.

Inclusion Criteria:

• ability to walk at least 1km,
• born in 1938,1939,1940,1941 or 1942
• Sufficiently good health to be able to take part in the study, as determined by the researchers

Exclusion Criteria:

• Illness or disability that precludes exercise or hinders completion of the study
• Uncontrolled hypertension
• Symptomatic valve disease, hyper tropic cardio-myopathy or unstable angina
• Active cancer
• Test results indicating that study participation is unsafe
• Inclusion in other studies conflicting with participation in this one

elderly, norwegian