A method for actuating a bicycle electronic gearshift, is disclosed, comprising the steps of: (a) receiving a signal (detected_heart_rate) indicative of the heart rate of a cyclist using the bicycle, (b) receiving a signal (detected_power) indicative of the power delivered by the cyclist, (c) calculating a performance index (detected_performance_index) as a function of the value of the signal (detected_power) indicative of the power and of the value of the signal (detected_heart_rate) indicative of the heart rate, (d) obtaining a reference value for the performance index (performance_index_setpoint), (e) comparing (354, 356) the calculated performance index (detected_performance_index) with the reference value of the performance index (performance_index_setpoint), (f) emitting (362, 366) a control signal (control_signal, increase_ratio, decrease_ratio) of a gearshift (10) as a function of the outcome of comparing step (e).揭示致動自行車電子變速裝置的方法，包括步驟：(a)接收指示使用自行車的騎車人的心率的信號(detected_heart_rate)，(b)接收指示由騎車人傳遞的功率的信號(detected_power)，(c)根據指示功率的信號(detected_power)的值和指示心率的信號(detected_heart_rate)的值，計算表現指標(detected_performance_index)，(d)獲得用於表現指標的參考值(performance_index_setpoint)，(e)將所計算的表現指標(detected_performance_index)與表現指標的參考值(performance_index_setpoint)進行比較(354、356),(f)根據比較步驟(e)的結果，發出(362、366)變速裝置(10)的控制信號(control_signal、increase_ratio、decrease_ratio)。
