· Guides
How to Choose the Perfect Coach Through a Mobile App
How to choose a coach through a mobile app: education and certifications, athletic achievements, student results, in-app ratings, and personal fit.
Read more →Blog articles tagged: Core strength
News, product updates, and training guides from the GymJoin team — for gyms, coaches, and everyone who trains.
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· Guides
How to Find the Perfect Gym Through a Mobile App
How to search for a gym or coach through a mobile app: map search, filters by sport and price, one-tap subscriptions, and transparent check-ins.
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· Guides
How to Choose the Perfect Gym: A Complete Guide
How to choose a gym by location, real Google ratings, equipment, and vibe — and why a trial session matters more than photos on social media.
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· Running
Running in the Heat: How to Train Safely for Your Heart
How to run safely in summer heat: the best training times, gear, hydration, heart-rate control, and why trail running beats hot asphalt.
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· Training
SUP Training for Fighters: Balance, Cardio, and Strength
How stand-up paddleboarding builds balance, cardio endurance, core, and shoulder strength for MMA and Muay Thai fighters, with a ready 40-minute workout.
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· Running
Trail Running 101: What It Is and How to Get Started
What trail running is, how it differs from road running, its key benefits, and the gear and gadgets you need for your first runs on the trail.
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· Psychology
Psychology in Combat Sports: How to Train a Resilient Mind
How to train a fighter's mind: instant activation before a bout, beating pre-fight burnout, staying focused under stress, and building resilience.
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· Training
Fitness Without Borders: The Full Guide to Online Training
The pros, cons, and best platforms for online training: why the format took off, which apps to choose, and when a coach in person still wins.
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· Technology
Your Smartphone as a Pocket Coach: How Apps Improve Performance
A rundown of apps for tracking activity, nutrition, HRV, and strength — and how they help fighters manage heart rate and cut weight safely.
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· Training
The Tabata Phenomenon: 4 Minutes That Change Your Endurance
How the Tabata protocol (20/10) boosts endurance and burns fat via the EPOC effect, plus why it's a must-have for fighters, with a ready workout.
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· Training
Anaerobic Threshold and Endurance: Don't Gas Out After Round One
Why a fighter "gasses out" by the third minute: the science of lactate and the anaerobic threshold, and how to structure heart-rate-zone training to last a full fight.
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· Technology
Wearables in the Ring: How Data Is Changing Combat Sports
How chest monitors, hand-wrap sensors, and HRV trackers help Muay Thai coaches and fighters manage fatigue and peak for competition.
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· Training
Hybrid Fighter Training: A New Era in Striking Combat Sports
What hybrid fighter training is: how to split gym work and autonomous sessions, avoid CNS overload, monitor recovery with HRV, and reach peak fighting form.
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· Martial arts
Strength That Protects: Martial Arts Against School Bullying
How martial arts shield kids from school bullying: confidence, physical fitness, emotional resilience, and discipline — from the perspective of a Muay Thai coach.
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· Fitness
A Strike Against Excess Weight: How Muay Thai Transforms Your Body
How martial arts and Muay Thai training help you lose weight: up to 1,000 kcal per session, the EPOC effect, body recomposition, and three types of training load.
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