Endurance vs Strength: What 'Stamina' Really Means and How to Train Each

Supplements promise stamina without defining it. Here is the physiology behind aerobic endurance, muscular endurance and strength, the tests that measure each, how men over 35 should split their training and where botanicals fit.

Three Different Things

Aerobic endurance is the ability of heart, lungs and mitochondria to deliver and use oxygen over time, measured as VO2 max and lactate threshold. Muscular endurance is how many times a muscle can contract against a load before failing. Strength is the maximum force a muscle can produce once. They share some training, but each responds to specific work.

Training Aerobic Endurance

Most of the gains come from steady, conversational-pace work of 30–60 minutes, three to four times a week, which builds mitochondria and capillaries, plus one weekly session of intervals near maximum effort to raise VO2 max. Ten weeks of this raises VO2 max by 10–15% in untrained men; ashwagandha trials reported a smaller additional gain on top.

Training Muscular Endurance and Strength

Strength grows with heavy loads, three to six repetitions, long rests, two or three sessions a week. Muscular endurance grows with lighter loads for 15–25 repetitions and short rests. Men over 35 lose strength faster than endurance, so two strength sessions a week are the priority, with endurance filled in by walking and one interval day.

Where Supplements Fit

Creatine (strength) and caffeine at 3–6 mg/kg (endurance) are the two supplements with robust performance evidence. Botanicals like ashwagandha and maca show small effects in small trials. A once-daily men's gummy with trace caffeine and undisclosed botanical amounts is a supportive routine; the training above is where stamina comes from.

Where Soda Boost Fits

Soda Boost supports stamina through ashwagandha and maca, and our review page states that resistance training, aerobic work and sleep do far more than any gummy, positioning the product alongside them. Read the full breakdown on the Soda Boost official website, including ingredients, customer reviews and current pricing.

Key Takeaways

• Aerobic endurance, muscular endurance and strength are distinct.
• Steady work plus one interval day raises VO2 max 10–15% in 10 weeks.
• Men over 35 should prioritise two strength sessions a week.
• Creatine and full-dose caffeine have the evidence; botanicals are supportive.

Frequently Asked Questions

Which matters more after 40, strength or cardio?

Both, but strength loss is faster, so weights first.

How long to improve stamina noticeably?

Six to ten weeks of consistent training.

Will Soda Boost improve my VO2 max?

Training will; ashwagandha trials showed small additional gains at doses larger than a gummy carries.

Sources

• ACSM: Physical Activity Guidelines
• Pérez-Gómez et al. 2020, ashwagandha and VO2 max