• FTP has aerobic and anaerobic elements. The more aerobic you have the higher the base your anaerobic starts from. Generally you push FTP up aerobically in the winter then pull it up anaerobically later in the year with the benefit that your aerobic takes longer to degrade and your anaerobic quicker to develop

    Sweet spot does both but possibly isn't quite as deep an aerobic foundation as heaps of Z2 in the winter nor as efficient at anaerobic improvement as harder Z4/Z5 intervals. #traininghearsay

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