MSI Press Blog

  Still in progress, but definitely in the line-up of future publications is Grandma's Ninja Training Diary -- the story and insights of a septaguanarian undertaking training in hopes of submitting an application tape to the ninja games (did not happen because of covid shutdowns and an interesting body discovery -- have to wait for the book to find that out). What was learned in the process, especially about the aging body and fitness, was pretty immense and will be shared in this "diary" in a unique way (experience of "Grandma" and discussion by her trainer, Brittany Renz, author of Girl, You Got This! ) intended to help those who are already in retirement keep fit.  So, aging muscles? Yep! Here are some articles that can shed some light on how they differ from the muscles of young'uns: 50-year-old muscles just can’t grow big like they used to – the biology of how muscles change with age  This is one of the best exercises you can do for your health if you’r...

Precerpt from Grandma's Ninja Training Diary: The Secret to Losing Weight: It’s Not Just Eating Less There is no question that beyond serious muscle training, I needed to lose weight. The weight, though, did not just disappear, though I tried hard to eat less—a lot less. Thanks to Brittany, my trainer, I learned that it really was not how much I ate, but what I ate.      Like most people trying to lose weight, I thought cutting calories was the answer. If I just ate less, surely the pounds would melt away. But instead of feeling lighter, I felt exhausted, cranky, and constantly hungry. Brittany took one look at my food choices and explained that my body wasn’t getting what it needed. It turns out that the key to weight loss wasn’t starvation—it was nourishment. I had to shift my focus from eating less to eating right. More protein, more fiber, and fewer empty carbs. More whole foods, fewer processed snacks. Instead of a tiny bowl of cereal that left me hungry an hour l...

  Precerpt (pre-publication excerpt) from Grandma's Ninja Training Diary -- Memory, Muscle, and Motivation: Rediscovering Strength Later in Life When we return to exercise after a long hiatus, our bodies often surprise us with what they remember. The phenomenon of "muscle memory" isn't just anecdotal—it's a fascinating biological reality that gives older adults a significant advantage when resuming physical activity, something my trainer, Brittany, taught me. My own journey back to fitness revealed the veracity of that reality in unexpected ways. Despite decades away from military training, my body immediately recalled how to execute jumping jacks with surprising efficiency—completing 40 in quick succession when my trainer expected far fewer, and I could have kept going. My muscles had quietly preserved the neural pathways formed during my Army days, waiting patiently to be reactivated. This biological advantage comes from two mechanisms. First, the neural patter...

  Coming soon! Watch for it!  Grandma's Ninja Training Diary  (Leaver and Renz) Grandma’s Ninja Training Diary  is the inspiring true story of a 70-year-old grandmother who dares to dream big—by training for  American Ninja Warrior . Teaming up with coach and trainer Brittany Renz, she embarks on a three-year journey to build strength, resilience, flexibility, balance, and endurance—starting from scratch. Told in a dynamic mix of diary entries, coaching insights, and behind-the-scenes reflections, this book chronicles the ups and downs of late-in-life athletic training. From gym workouts to rock climbing, yoga to injury recovery, sleep to mindset—every aspect of the transformation is explored with honesty and humor. Grandma shares what she’s learning; Coach Brittany explains why she’s right—or wrong. Together, they offer a realistic, encouraging look at what it takes to pursue an extraordinary goal at any age. Part training manual, part motivational memoir,...

  Coming soon! Watch for it!  Grandma's Ninja Training Diary  (Leaver and Renz) Grandma’s Ninja Training Diary  is the inspiring true story of a 70-year-old grandmother who dares to dream big—by training for  American Ninja Warrior . Teaming up with coach and trainer Brittany Renz, she embarks on a three-year journey to build strength, resilience, flexibility, balance, and endurance—starting from scratch. Told in a dynamic mix of diary entries, coaching insights, and behind-the-scenes reflections, this book chronicles the ups and downs of late-in-life athletic training. From gym workouts to rock climbing, yoga to injury recovery, sleep to mindset—every aspect of the transformation is explored with honesty and humor. Grandma shares what she’s learning; Coach Brittany explains why she’s right—or wrong. Together, they offer a realistic, encouraging look at what it takes to pursue an extraordinary goal at any age. Part training manual, part motivational memoir,...