Serious About Getting in the Best Shape of Your Life?

You've Built Everything Else. Now Let's Build This.

This is for the high-achieving woman, 30+, who has built a successful career or business — the one everyone else looks to for the answers. You've made the money. Earned the title. Built the career, or the business, that has other people coming to you for the answers. And somehow, the one area still eluding you is the one you see every single day in the mirror.

Because I only work with a small number of women at any one time, it's important to know it's the right fit for both of us. Book a free, no-obligation 20-minute discovery call to see if this is right for you.

Coach Jen Brockwell

I'm a Level 3 qualified personal trainer (Focus Awards, Ofqual-regulated, via Origym Centre of Excellence) running a strictly 1-2-1 online coaching business. I work with women, 30+, who want to lose body fat, gain muscle, tone up, improve their health and fitness, and become the best version of themselves.

I've been chasing what my body is capable of since I was a kid — county-level squash from age 11, obsessed with fitness ever since. That obsession carried me through a 25-year career in investment banking, across roles that ranged from investment dealer and performance analyst to institutional sales coordinator, right up to Chief of Staff at an investment consultancy. I ran my own beauty business on the side through my twenties too, alongside all of it.

Fitness was never a hobby that sat next to that career — it's what made it possible. It built me from the inside out: quiet confidence, the belief that I could do hard things, a genuine release from a high-pressure job, and a love of training that never once went away, not even through two children delivered by C-section and everything that came with it. I honestly don't think I'd have achieved anywhere near as much in my career, or in my life, without it.

Now I do what I actually love. I'm 46, mum of two, a published author of a children's motivational book, and I know exactly what it's like fitting real training around a demanding job and family life — because I've lived every version of it.

Here's the honest truth: I'm a self-confessed fitness geek, and I'm not remotely embarrassed about it. I live and breathe this stuff — I'm reading the research, testing things on myself, thinking about your programme between sessions, not just during them. When one of my clients hits a new PB, or tells me their jeans fit differently, or messages me buzzing after a session — that's the most exciting, rewarding part of what I do. I'm genuinely obsessed with getting results for the women I coach. It's not a job I clock out of — I build genuine connections with my clients, and it's a huge privilege to journey alongside them and hold them to the standard I know they're capable of.

As women, we've all spent our whole lives being told to take up less space — be smaller, be thinner, but somehow never "too thin," never too much. I'm done with that message, and I want you done with it too. What I actually want for you isn't a smaller you — it's food freedom, real strength, and a body that carries you through to old age looking and feeling good, still capable, still strong, still yours. That's the whole point.

To me, true feminism means women supporting women — cheering each other on, lifting each other up, and showing up for each other in the low moments too, not just the wins. I am, at my core, a supporter of women. That's exactly why this feels less like a job and more like a mission: getting you into the best shape of your life, and helping you become the strongest, most capable version of yourself.

We burned our bras. Now it's time to bin the scales. Real change starts with accepting the skin you're in today, while you build the strongest, fittest version of yourself for tomorrow — whatever shape or size that comes in. We are not all built the same, and we were never meant to be. So let's stop measuring ourselves against each other and start cheering each other on instead.

I can help you get the results you're not getting. I'll build your training and nutrition around your actual time, equipment and fitness level — using methods I've developed and tested myself, not a generic plan pulled off a shelf.

And if you also want to lose body fat, build muscle, tone up — and maybe even see a six-pack for the first time — book a free Online Coaching Discovery Call and let's talk.

Training Principles

My approach is intentional functional fitness — not exercise for the sake of it, but a deliberate mix of cardio and strength, built around what actually moves the needle for you.

Cardio? Yes — but trained with intent, not just "cardio." I coach five conditioning qualities, from Aerobic Base through Threshold, VO2 Max, Anaerobic Capacity and Lactic Power. If fat loss is your main goal, almost all of your cardio work lives in the first two — Aerobic Base and Threshold. That's the zone where your body is genuinely trained to use fat as fuel, and where you build a bigger engine without piling on fatigue that eats into your strength training. But real fitness and conditioning goes further than that, and even when fat loss is the priority, I train you towards that fuller level of fitness too — because a body that can also produce power and recover fast is simply a more capable one.

Each quality gets its own dedicated 4-week wave — three weeks building, one deload week to consolidate — before we rotate to the next. Over a year, that means every part of your engine gets built deliberately, not just the parts that show up on a scale:

• Aerobic Base — your foundation. Easy, sustainable effort that everything else sits on top of, and where fat loss does most of its work.
• Threshold — the hardest pace you could hold for about an hour. Where fat loss and real fitness meet.
• VO2 Max — your aerobic ceiling. How big the engine actually is.
• Anaerobic Capacity — repeated hard efforts with incomplete recovery. Real-world resilience under fatigue.
• Lactic Power — short, maximal output. The sharpest, most demanding end of the spectrum.

Strength and resistance training is the priority — but never in isolation. Every programme also builds cardiovascular health, flexibility, mobility and core strength around it. Muscle isn't vanity — it's one of the strongest predictors of how well you age. Research consistently shows that even 30–60 minutes of resistance training a week is linked to a 10–20% lower risk of dying from any cause, and studies on older adults have found that muscle lost to ageing can be rebuilt through resistance training, even starting in your seventies. There's a metabolic case for it too: muscle is metabolically active tissue, burning noticeably more energy at rest than fat does, even when you're doing nothing at all. Build and hold onto more of it, and your body burns more calories around the clock — which works quietly in your favour and makes fat gain harder to creep back on. Muscle is the key to long-term health and longevity — the fact that it also happens to make you look good is a bonus, not the point.

I'll be straight with you: it's difficult. It's not supposed to be easy — if it was, you'd have done it already. Get ready to work hard. Head down, no shortcuts, one rep and one session at a time — that's how real transformations get built, not from a quick fix. But we start at the very beginning, and we gradually build and add from there. Week by week, we build stamina, mental strength, endurance, speed, strength, volume of work and recovery — every part of you, not just the parts that show in a mirror. Flexibility and mobility work is built into your weekly training too, not bolted on as an afterthought.

Exactly where you land on that mix depends on your goals, your time and where you are in your journey. I do all your programming and planning for you, progressed as you go — you're never left guessing what to do next.

Three Ways to Eat. One That Actually Fits You.

Not everyone wants to count calories, and not everyone wants to guess — and not everyone's ready for the same approach at the same time. You get whichever one actually fits how you live and where you are.

Option A — The High Protein Palm Portion Method

For clients who don't want to weigh, log or count anything. Protein, carbs and fats are measured against your own hand — no app, no scales, no guesswork. It moves through three phases as you progress:

Transformational Phase — where it all begins

Clean, structured and results-focused. Protein at every meal, 3 litres of water a day, and a tight, no-guesswork food list.

Build Phase — muscle building, advanced only

This phase is exactly what it says — build. More fuel, bigger portions, and a small deliberate surplus, aimed squarely at building visible, lasting muscle. It's recommended for clients who don't have much body fat left to lose and specifically want to add muscle — and it's a harder training schedule, only suited to experienced, conditioned clients who are ready to give it what it takes. Building muscle isn't accidental. It's intentional, and it demands maximum effort.

Lifestyle Phase — how you eat for life

The same method, loosened just enough to live in permanently. This is where most clients land for good.

Option B — Precision Macro Tracking

For clients who prefer numbers, without needing to be perfect. I set you a target calorie range and a macro target range — not one fixed figure — so there's always a bit of wriggle room, and one messy meal or an off day doesn't undo anything. We track and review against weekly targets, not daily ones, because a week is where the real pattern actually shows up. Logged through MyFitnessPal, built around your goals, adjusted as you progress. Part of my job is taking the overwhelm out of what to eat, when, and which diet is supposedly "right" — you get one clear system, not fifty conflicting rules.

Option C — The 5:2

Five days on your plan, two days properly off it — no tracking, no guilt. This one is earnt, not chosen on day one. It's for clients who've already built years of good nutrition and habits, whose bodies and routines can absorb two flexible days without the rest unravelling. If you're not there yet, that's completely normal — the Palm Portion Method or Precision Macro Tracking will get you there first. The 5:2 is where some clients eventually land, not where anyone starts.

We agree which one suits you in your first session — and if it's not working, we switch. The method serves you, not the other way round.

Why Train With Me?

I'm a self-confessed fitness geek — and I genuinely love it.

I live and breathe this. I'm constantly learning, testing and sharpening my craft — reading the research, trying things on myself first, always chasing what actually works. The gym made me, and it's saved me, several times over. It's just who I am, and that obsession is exactly why I get results for the women I coach.

My Book

"Show Us What You're Made Of" — available now on Amazon.

I wrote it as a children's motivational book, but the message isn't really just for kids — it's a summary of what I believe, and what I coach by every day: that grit, self-belief and showing up for yourself are what actually shape a life. Read by an 8-year-old or an exhausted 40-year-old, it lands the same.

Ready to Get Started?

Not sure online coaching is right for you, or don’t feel you need that level of accountability? A Reset Call might be the better fit — one conversation, 60 minutes, just us, working out exactly what’s holding you back and what to change in your training or nutrition to get real results. One-off session, £100.

Curious about ongoing coaching? Book a Free Online Coaching Discovery Call — no pressure, just an honest conversation.