Training · Moderate evidence
Interval walking
Alternating 3 minutes of brisk walking with 3 minutes at an easy pace improves aerobic fitness and blood pressure more than continuous walking for the same total duration.
Randomized controlled trials · 2 sources · 2 min
What the studies show
- Interval walking increased maximal oxygen consumption and thigh strength more than continuous walking.
- Blood pressure decreased more in the interval walking group.
- In type 2 diabetes, it improved glycemic control and reduced body fat with the same energy expenditure as continuous walking.
How Letz applies it
The walking track starts with continuous walking and, once the initial milestones are met, progresses to interval walking with 3 minutes fast and 3 minutes easy, up to 5 rounds.
Who it applies to
Middle-aged and older adults, including individuals with type 2 diabetes.
Limits
Japanese and Danish studies using accelerometer tracking; real-world adherence may be lower.
Sources
- Nemoto et al., Mayo Clinic Proceedings, 2007 DOI 10.4065/82.7.803
- Karstoft et al., Diabetes Care, 2013 DOI 10.2337/dc12-0658
More in Training
- Resistance Training, Strength, and HypertrophyVarious training prescriptions improve strength and hypertrophy; heavier loads favor strength, and multiple sets favor hypertrophy.
- Weekly Volume: Sets per Muscle GroupMore weekly sets per muscle produce greater hypertrophy, with diminishing returns; for strength, moderate volumes already capture most of the gains.
- Frequency: training each muscle at least twice per weekTraining a muscle group twice a week is superior to once for hypertrophy; for strength, higher frequency helps primarily because it distributes volume more effectively.
- Load and rep rangeLight and heavy loads produce similar hypertrophy when sets are taken close to failure; heavy loads are superior for maximizing strength gains.