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19 Years
experience
Outdoor Fitness Training London
At One Element, we have been pioneering outdoor fitness training since 2007, delivering high-intensity sports-based workouts designed to transform physical and mental wellbeing. Our sessions combine pre-season athletic training principles with inclusive, community-driven environments where participants of all fitness levels thrive. We systematically rotate our HIIT and circuit training programmes weekly to ensure progressive improvement while maintaining variety and engagement.

Our approach prioritises motivation over intimidation, fostering camaraderie through shared challenges in parks across the UK. With a proven track record of building fitness, confidence, and lasting friendships, we remain committed to evolving our methods while maintaining the core values of accessibility, expertise, and measurable results that have defined our success.
Services
Outdoor Fitness Sessions HIIT Training Circuit Workouts Online Classes Social Events
Details
  • Year established: 2007
Highlights and features
  • We offer 17+ years of experience developing proven outdoor fitness methodologies
  • Our rotating HIIT programmes ensure continuous fitness progression
  • Trainers personalise challenges for all fitness levels without intimidation
  • Community-driven sessions combine physical training with social connection
  • Sessions operate year-round in all weather conditions without cancellation
What people say
Amazing trainers Improved fitness dramatically Supportive community Fun challenging sessions Lifelong friendships
Services
Outdoor Fitness Sessions
Our outdoor fitness sessions utilise park environments for high-intensity interval training (HIIT) and circuit workouts. Expert trainers design weekly rotating programmes to ensure progressive fitness development while maintaining participant engagement. Sessions incorporate functional movements, strength training, and cardiovascular challenges adaptable for all fitness levels. The natural setting enhances mental wellbeing through fresh air exposure and seasonal training variations.
HIIT Training
High-Intensity Interval Training (HIIT) forms the core of our fitness programmes. Structured intervals alternate between intense exercise bursts and recovery periods, maximising calorie burn and cardiovascular benefits. Trainers modify intensity levels to suit individual capabilities while maintaining group cohesion. This method delivers measurable fitness improvements in shorter timeframes compared to traditional workouts.
Circuit Workouts
Circuit training combines multiple exercise stations performed in sequence with minimal rest. Our circuits integrate strength, agility, and endurance components using bodyweight and portable equipment. Weekly rotation ensures balanced muscle development while preventing workout monotony. Trainers provide real-time form corrections to optimise effectiveness and safety.
Online Classes
Complementing outdoor sessions, our online platform offers live-streamed and on-demand workouts. These digital sessions maintain training consistency during travel or inclement weather. Programmes mirror outdoor content with modifications for home environments, ensuring continuity in fitness progression across platforms.
Social Events
Beyond physical training, we organise regular social gatherings including coffee mornings, pub meetups, and annual trips. These events foster community bonds, creating supportive networks that enhance motivation and long-term participation. Social interaction forms an integral component of our holistic fitness approach.
People
Tom Marien
Founder
Tom Marien founded One Element in 2007, developing its signature outdoor fitness methodology. With extensive sports training expertise, he leads programme development while maintaining active involvement in community engagement and franchise expansion.
Georgie Sayle
Head Trainer
Georgie Sayle manages the Selborne location, delivering expert fitness instruction and mentoring trainers. Her approach combines technical precision with motivational leadership, ensuring sessions remain challenging yet accessible for diverse participants.
Kate
Senior Trainer
Kate leads sessions in Tooting Common, renowned for her energetic coaching style and ability to personalise workouts. With years of experience, she maintains high engagement levels while helping members achieve measurable fitness milestones through consistent progression.
Questions
What types of fitness sessions do you offer?
We provide outdoor HIIT and circuit training sessions in parks, rotating weekly to ensure progressive challenges. Sessions include strength-building, cardio, and functional fitness exercises adaptable for all abilities.
Are sessions available year-round?
Yes, we train in all weather conditions across our UK locations. Sessions continue throughout winter with appropriate safety measures and modifications for seasonal conditions.
How do beginners join your outdoor fitness sessions?
Beginners can start with a free trial session at any location. No prior fitness level required - our trainers adapt exercises to individual capabilities while maintaining group motivation.
What should I wear to an outdoor fitness session?
Wear weather-appropriate sportswear with layers for cold conditions. Sturdy trainers are essential, and we recommend bringing a water bottle and positive attitude.
Do you offer online fitness options?
Yes, we provide on-demand online workouts and virtual sessions for members unable to attend park sessions, maintaining the same training principles through digital platforms.
What community benefits exist beyond fitness training?
Our members enjoy regular social events including coffee meetups, pub gatherings, and annual trips. These activities strengthen community bonds while supporting mental wellbeing through social connection.
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