Educational Blog
Muscle one of the strongest predictors of healthy aging
Research consistently shows that muscle strength and cardiovascular fitness (VO₂ max) are two of the best predictors of how long and how well we live. Why? Because they reflect how well your muscles, heart, lungs, and nervous system work together.
Exercising While Injured: How Myokines Can Boost Recovery
Have you ever been injured or felt tenderness in a joint or muscle? Every injury sets you back, and it can feel like you have to stop all activity just to recover. Often, a week of injury leads to all desk work and no body work.
But what if you could exercise safely without aggravating the injured area—and even improve recovery?
Strength Training and Sarcopenia
As life expectancy rises, one of the greatest challenges isn’t just living longer, but living stronger. Among older adults, sarcopenia—the age-related loss of muscle mass and strength—affects roughly 10–16% of people worldwide. This condition impacts mobility, independence, and overall health, increasing the risk of falls, frailty, and even cognitive decline.
The Guiding Principle of Safe Strength Training
First, do no harm” isn’t just a medical maxim—it’s the cornerstone of our approach to exercise and strength training at Salus Strength. This principle guides how we design every program, both for our clients and ourselves.
4 Strength Training Myths Debunked
There are persistent myths that prevent many people from participating in resistance training. Here are four of the most common misconceptions we hear each week—and what science actually says.
Single vs Multiple Sets in Strength Training
New research shows single-set strength training to failure is highly effective, even for advanced lifters. Learn how it compares to multiple sets.
Nutrition for Fat Loss and Muscle Gain
Learn how to lose fat or build muscle with simple nutrition strategies. Avoid food guilt, create balance, and focus on what truly drives results.
Media Appearances
How to start exercising and how to do it from home - The Little Things Podcast | NZ Herald.
“Getting into exercise when you haven’t gone to the gym or been for a run for years can be pretty daunting.
But finding some simple exercises to do at home can be the easiest way to get back into a rhythm.
Kyra Seiler is an Auckland-based personal trainer who specialises in high-intensity strength training, and is soon to complete her Master’s in strength and conditioning.”
How High-Intensity Training (HIT) Helps With Injuries Caused By CrossFit
Salus Strength Founder Kyra Seiler talks about how she helps clients with their CrossFit injuries using high-intensity training (HIT) workouts and get them in the best shape of their life.

