PROBLEM TO BE SOLVED: To enable an exercising user to grasp superiority of own physical ability simply and properly.SOLUTION: A diagnostic server includes an acquisition part for acquiring motion information of a diagnostic object user acquired by using an inertial sensor, a calculation part for calculating a physical strength age of the diagnostic object user on the basis of the acquired motion information of the diagnostic object user, and on a diagnostic reference related to the motion information classified by the age or by the age group, and an output part for outputting a diagnostic result related to the calculated physical strength age.SELECTED DRAWING: Figure 21【課題】運動をするユーザーが自己の身体能力の優劣を簡単かつ適確に把握すること。【解決手段】診断サーバーは、慣性センサーを用いて取得された診断対象ユーザーの運動情報を取得する取得部と、取得した前記診断対象ユーザーの運動情報と、年齢毎又は年齢層毎の運動情報に係る診断基準と、に基づいて、前記診断対象ユーザーの体力年齢を算出する算出部と、算出した前記体力年齢に係る診断結果を出力する出力部と、を含む。【選択図】図２１
