Welcome — Section · 30 articles

All our Training articles

Training advice that respects your intelligence and your joints: strength, cardio and mobility, each claim checked against the studies it came from. Start with the guides, then take them to the gym with the exercise library and workout log.

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Strength training

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Cardio & conditioning

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Cardio & Conditioning

Cycling for Fitness: What the Evidence Says

Cycling improves aerobic fitness and cardiometabolic health with low joint impact. Here is what the research supports, plus the honest…

5 min readUpdated Nov 14, 2026
Cardio & Conditioning

Stair Climbing: The Underrated Cardio

Stair climbing is vigorous exercise hiding in plain sight. Short bouts improve fitness and leg power, and the research is…

5 min readUpdated Nov 14, 2026
Cardio & Conditioning

Zone 2 Heart Rate by Age: The Simple Chart

Zone 2 is the easy, conversational pace that builds your aerobic base. This chart gives your zone 2 heart-rate range…

4 min readUpdated Nov 14, 2026
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