Strength, Energy & Confidence for Women

Personal Training, outdoor bootcamp, and live Zoom workouts designed to support women through peri-menopause, menopause, and beyond — so you can feel strong, capable, and at home in your body again.

Your body hasn’t failed you. It’s changing. You need a different strategy now.

This is not about the scale — it’s about confidence, fewer symptoms, and habits that last. I give the plan and the structure; you bring the commitment.

Feel stronger. Boost your metabolism.

Protect your joints.

Train in a way that supports your changing body — not fights it.

Start Here: Get your Free 7-day Midlife Muscle Shift
Lunchtime bootcamp is the BEST way to guarantee the best day for a busy working woman in Napa, Calfornia. You will finish your workout with more energy and less stress to finish your day at work

Midlife Is a Shift - Not a Breakdown.

After 35, workouts change. Recovery shifts. Hormones fluctuate. Energy becomes less predictable.

You’re not broken — your physiology is evolving, and your training should too.

What midlife bodies need:

  • Progressive weight training

  • Adequate protein for muscle support

  • Intentional recovery

  • Nervous system regulation

  • Hormone-aware programming

If you’ve noticed workouts don’t hit the same, weight is harder to manage, energy and recovery feel different, or joints are stiffer — you’re not alone. Midlife brings real hormonal and metabolic shifts. Your training can and should adapt to support them.

I’m not coaching from the outside.

I’m a certified personal trainer—and I’m in this stage of life too. I get the perimenopause shifts, muscle loss after 35, joint changes, hormonal ups and downs, and the mental upheaval of midlife (understatement of the year). I don’t coach punishment—I do challenge you, because that’s my job.

At Shift by Jeni, I help women:

  • build and keep muscle through midlife

  • support metabolism naturally

  • improve mobility and joint health

  • feel confident and capable in their bodies again

  • train smarter, not harder

Whether you want one-on-one coaching, group workouts, or to train from home, there’s a path for you here.

Explore Services

Lunchtime bootcamp is the BEST way to guarantee the best day for a busy working woman in Napa, Calfornia. You will finish your workout with more energy and less stress to finish your day at work

Get a workout that fits your energy! Join personalized sessions to meet your fitness goals. Choose one-on-one training at my home gym in Napa or at your home. I also offer a fun & challenging bootcamp that meets twice a week outdoors with a small group of dedicated women. We motivate each other, face challenges, and celebrate achievements. Contact me for details—spaces are limited, and I’m excited to help you!

Can you feel that energy from here? As a personal trainer in Napa, CA my focus is on helping women feel their best from the inside out.

Unlock your fitness potential with personalized training tailored just for you! I offer virtual one-on-one training sessions to ensure you receive focused, individualized guidance on your journey. Prefer a supportive community? Join my small group early morning classes, designed to energize and inspire. For those who like to work on their own schedule, explore my extensive library of on-demand workouts and programs available anytime.

Woman in athletic wear climbing a steep concrete incline outdoors with greenery and trees in the background.

Individualized Program Design

This program offers a flexible fitness option without needing regular sessions. We'll meet in person or online to talk about your goals, check your form, and understand your needs. I’ll create a personalized workout plan for you and record a session so you can have a personalized video to workout at your convenience. You'll only need to meet once every 3 to 6 weeks where you can ask questions and stay on track.

  • Client Testimonials:

    “I am 64 years young and real fitness has been an elusive goal of mine. I have spent years on and (mostly) off trying to find a personal trainer in the gym setting to get me to where I wanted to be physically. Frustrated by their inattention, lack of knowledge and unfortunately youth, I gave up time and time again. When I moved to Napa I ran across Jeni’s website by accident. I called her and set up my first appointment at my home. That was 4 1/2 years ago. Today I am stronger and more confident physically than I have ever been. Jeni has taken me on an incredible journey.  She is personable, knowledgeable, patient and above all professional. She believed in me and I truly believe in her. I highly recommend Jeni as a personal trainer. Give her a call. But you won’t get my daily spot. I’m never leaving!”

    —Barb K

  • Client Testimonials:

    “Jeni is amazing!! I have been going to Jeni’s bootcamp since I moved to napa 10 years ago. The results, the camaraderie with the other ladies in my classes, and the challenges that Jeni brings to every session have kept me committed.  I could not recommend Jeni’s bootcamp more for anyone who is looking to build strength, build community, and have an amazing time looking and feeling your best!”

    — K.L.

  • Client Testimonials:

    “I have been working out with Jeni every Tuesday and Wednesday morning for 2+ years and 250+ classes now. Jeni’s positive encouragement and well thought out lessons keeps my body challenged, even after all the classes we’ve had together! Over the years I have lost 70+lbs and for the first time in my life maintained the weight loss without fluctuation. I have never been so strong, I can do multiple full push ups, I can stand from sitting without using my hands, but most importantly I can keep up with my kids and work, something I was genuinely struggling with just a few years ago. Jeni makes it easy to show up (even for people like me, who is not a fan of the early morning!) by building up intensity and bringing her own encouraging energy to help get us moving! Jeni has been a consistently positive and healthy addition to my life, I look forward to my exercise days every week. I am excited to learn what else my body can do every week, and I have Jeni to thank for that.”

    —Vanessa S.

  • Client Testimonials:

    “Jeni has been my trainer for the past 7 years and my life would not be the same without her!  I’m 73 and strong, nimble, with good balance and endurance.  I have worked out with her online, whether I’m at home, visiting family or friends, camping by the ocean or in the mountains, across the country, or out of the country!  She greets me 4 mornings a week with a smile and a workout plan! ”

    — Dee M.

  • Cient Testimonials:

    “I’ve exercised for most of my life and have always enjoyed it until I turned 50 and hit a fitness slump. I was frustrated and annoyed that my usual exercise routine wasn’t working and then I met Jeni. Whether it’s a 1:1 session or bootcamp (I do both), she has the innate ability to read the room and tailor her workouts to match your energy level. Bootcamp is a great break from a stressful workday and I always leave with more energy than I started with. Jeni is my biggest cheerleader since day one, pushing me out of my comfort zone and challenging me to work harder. She has helped me realize I’m stronger that I know and I should trust my abilities. I’m excited to continue my fitness journey with her.”

    —Lola L.

More about me…

With over ten years as a personal trainer in Napa, CA, I help women unlock their potential through cardio, strength training, and functional exercises. Together, we’ll enhance your core, mobility, and balance with a personalized program that keeps you engaged and motivated. Each session is effective, fun, and active. Whether you’re starting out or want to elevate your routine, I’m here to support you. My holistic fitness philosophy fosters sustainable habits for lifelong wellness. I believe small changes lead to big transformations. From perfecting your squat to preparing nutritious meals, I’ll provide the tools to nurture your body and mind. Available for in-person and virtual training, I tailor each experience to your needs.

Learn more here