W4D4- Anaerobic 

Swimming 20 x 50m sprint. Rest as long as I took to sprint the lap so 100% rest. Alternate between freestyle and breaststroke Highest HR measured: 192 Reflection: Initially planned to do 30 but my system felt tired to begin with. Then I was having second thoughts after 10 laps because my energy was almost drained. … Continue reading W4D4- Anaerobic 

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