The driver's body is the machine.
Sports physiotherapy and motorsport performance in central London. Carly Christensen helps drivers and athletes recover from injury, then get genuinely stronger, by appointment at UNTIL Marylebone, Canary Wharf and Soho.
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Team physio, WEC 2025
Cadillac Hertz Team Jota
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£150 per hour
Assessment and treatment
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3 UNTIL clubs
Marylebone, Canary Wharf, Soho
Registration, membership and insurance
Sports physiotherapy and performance in central London
Three ways to work together, whether you are recovering from an injury or sharpening for a season, plus physiotherapy for everything in between. Every session is one hour with Carly.
Sports Injury Rehab
Injury rehabilitation
Assessment, hands-on treatment and a structured plan to get you back to training, sport and the cockpit, after injury or surgery.
Performance Coaching
Strength and performance
Data-led conditioning: cervical and trunk strength, grip endurance, heat and cardiovascular preparation, mapped to your sport's real demands.
Motorsport Athlete Performance
Motorsport preparation
Driver-specific work: neck strength for lateral G, reaction under fatigue, and posture and loading for karting and sim racing.
Physiotherapy
Assessment and treatment
A full assessment, a diagnosis explained in plain English and hands-on treatment with exercise, for pain and injury anywhere from neck to ankle.
About Carly Christensen
Hands-on,
but data-led
Carly Christensen has been a physiotherapist for more than 20 years, more than 10 of them with complex neurological injuries, and has treated more than 1,000 people. She holds 2 master's degrees: an MSc in Sport and Exercise Physiotherapy from Australian Catholic University and an MSc in Advanced Performance Science, focused on applied performance testing.
She worked trackside as team physiotherapist with Cadillac Hertz Team Jota at the Qatar round of the 2025 World Endurance Championship, after the 8 Hours of Bahrain in 2024, and as performance physiotherapist to England Women's Roller Derby at the 2025 World Cup in Innsbruck.
Every session is 60 minutes, costs £150 and follows the same 4 stages: assess, plan, build and return. She sees clients by appointment at 3 UNTIL clubs, in Marylebone, Canary Wharf and Soho. "My approach is hands-on but data-led: we measure, we train with intent, and we track progress so you can see it."
Motorsport performance
The driver's body is the machine
Neck and trunk
Neck and cervical load, lap after lap
Motorsport asks specific things of the athlete behind the wheel, and training for it looks different from general gym work. Sustained lateral G loads the neck lap after lap. Targeted cervical and trunk strength is the foundation of driver conditioning.
Steering and braking demand endurance in the hands and forearms: trainable, and often overlooked.
Heat and fatigue
Holding performance deep into a stint
Cockpits run hot and heart rate stays high. Conditioning keeps decisions sharp deep into a stint.
Consistency at the end of a race is physical. Box Box trains the body to hold performance when it is tired, and measures it, so you can see the difference in the numbers as well as on the stopwatch.
Who it's for
Built for motorsport, open to anyone serious about moving well
Young professional driver-athletes who need physiotherapy and performance coaching in one place. Club and amateur racers, karting drivers, track-day drivers and sim racers. Weekend athletes. People coming back after injury or an operation. If you take your sport seriously, the approach is the same: assess, plan, build, return. The aim is always the same: back to everyday activities, social life, work and sport, pain-free and stronger.
Carly has worked trackside in the World Endurance Championship and courtside with England Women’s Roller Derby at the 2025 World Cup.
How It Works
How it works:
from first assessment to full output
Assess
Physical screening and performance testing to find what's limiting you.
Plan
A programme built around your goals, your sport and your calendar.
Build
Coached sessions and progressive loading, adjusted as you improve.
Return
Back to sport and racing, with objective measures to prove it.
Sports physiotherapy near you at three UNTIL clubs in London
- UNTIL Soho 111 Charing Cross Road, London WC2H 0DT View location →
- UNTIL Marylebone 1 Orchard Street, London W1H 6HJ View location →
- UNTIL Canary Wharf 30 South Colonnade, London E14 5HX View location →
FAQ
Sports physiotherapy
questions, answered
What is Box Box Physiotherapy and Performance?
Box Box is Carly Christensen’s physiotherapy and performance practice in central London. She helps drivers and athletes recover from injury and then get genuinely stronger, with sessions by appointment at UNTIL Marylebone, Canary Wharf and Soho. The name comes from the team radio call that brings a car into the pits.
How much does a session with Box Box cost?
Every session with Carly is one hour and costs £150, whether it is an assessment, treatment, rehab or performance work. Your first session is a full assessment, so you leave with a working diagnosis, the first steps of a plan and a clear idea of how progress will be measured.
Do I need a GP referral to book with Box Box?
No. Physiotherapists are first-contact practitioners in the UK, so if you are paying yourself you can book with Carly directly by phone or email. If you are claiming on private medical insurance, check your policy first, because some insurers ask for a GP referral before they will pay.
Is Box Box only for racing drivers?
No. Box Box is built for motorsport and open to anyone serious about moving and performing well: club and amateur racers, karting and sim racing, track-day drivers, weekend athletes, and anyone recovering from injury or surgery. The approach is the same for everyone: assess, plan, build, return.
Where does Carly see clients?
Carly sees Box Box clients by appointment at three UNTIL clubs in central London: Marylebone at 1 Orchard Street, Canary Wharf at 30 South Colonnade, and Soho at 111 Charing Cross Road. The services and the price are the same at all three, so choose whichever fits your week best.
When should I see a doctor instead of a physio?
Call 999 or go to A&E for back pain with numbness around your bottom or genitals, loss of bladder or bowel control, or weakness in both legs, and after any significant crash or fall. See your GP for pain with fever or unexplained weight loss. Carly will also refer you on whenever physiotherapy is not the right first step.
Get Started
Ready when
you are.
Box Box Physiotherapy and Performance • UNTIL Soho, 111 Charing Cross Road, London WC2H 0DT
Book an assessmentBased in central London, by appointment. Sessions at UNTIL Marylebone, Canary Wharf and Soho.