JSM Fitness Personal Trainer provides one to one mobile and online coaching personal training services in St Albans & Harpenden (Hertfordshire). We offer a variety of personal training fitness programmes to suit your needs in the comfort of your home. With the help of your PT Juan, you can lose weight, tone up, lose fat, get nutrition advice, improve your mobility and form, increase your fitness levels or feel fitter and healthier a lot quicker in a productive and fun way.