Other Deals That Might Interest You

Two, Four, or Six 60-Minute Personal-Training Sessions with Free Fitness Consultation and Full-Body Measurements at Jeffrey Yu Fitness (Up to 71% Off)

West Portal

Give as a Gift
2 bought
Limited quantity available

In a Nutshell

Clients work one-on-one with a trainer to achieve goals; fitness consultation, full-body measurements, and nutritional counseling included

The Fine Print

Expires 90 days after purchase. New customers only. Appointment required, 24 hour advance notice required. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. May redeem across visits. Valid only for option purchased. Must be 18 or older and must sign waiver. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Staying motivated during a workout is easier when you're with a personal trainer or on a treadmill that's powering an important stoplight. Keep going with this Groupon.

Staying motivated during a workout is easier when you're with a personal trainer or on a treadmill that's powering an important stoplight. Keep going with this Groupon.

Choose from Three Options

  • $65 for two 60-minute personal-training sessions ($200 value)
  • $125 for four 60-minute personal-training sessions ($400 value)
  • $175 for six 60-minute personal-training sessions ($600 value)

Each option includes a fitness consultation and body measurements.

Muscle Confusion: An Undulating Path to Strength Gains

Learn the secret to overcoming fitness plateaus with Groupon's guide to muscle confusion.

Study muscle growth in any depth and you might easily reach this conclusion: muscles are kind of lazy. When you work out, your muscles go through an adaption period, growing so that they can handle the extra stress being put on them. But when they’re exposed to the same amount of stress or intensity all the time, they get used to it and promptly stop making gains. To overcome this plateau and destroy muscles’ attitude of smug complacency, trainers might prescribe a program of muscle confusion. That means strategically mixing up the order of workouts, the amount of resistance, length of rest periods, intensity, or other factors so no muscle group gets too familiar with the move.

Charles Poliquin, an athletic trainer who has designed workouts for 17 Olympic sports and for professional sports teams, is most often credited with introducing the concept physiologically known as undulating or nonlinear periodization in 1988. “Nonlinear” refers to the constant fluctuation in workout intensity (as opposed to progressing methodically through higher weight loads, for instance), and “periodization” refers to a specific plan for cycling through workout changes in order to give all the muscles enough attention.

Some studies have found muscle confusion, as it’s now commonly called, to be more effective in promoting long-term fitness and in boosting performance levels, and popular workout systems such as P90X and Insanity plan their intense regimens according to these principles. But if you prefer the comfort of a predictable routine, other experts are on hand to back you up, noting that if you’re focusing on a specific muscle group it may take weeks to get all you can out of a given move.

Q&A with Jeffrey Yu Fitness

What services does your business offer and what makes your business stand out from the competition? I’m always researching the latest in exercise science to optimize my clients' time inside and outside the gym.

Exercise is challenging. How do you keep clients motivated and engaged? I help set realistic short and long term goals; in addition to keeping workouts enjoyable, but challenging.

What was the inspiration to start or run this business? I spent many years being unproductive with my fitness goals because I lacked education and guidance. My goal is to provide quality information to my clients so they can make the most of their time.

What do you love most about your job? I love making health and fitness a part of people’s lives.


  • “Jeffrey Yu is a very good personal trainer. Highly recommended!”

  1. 1

    West Portal

    342 West Portal Avenue

    San Fancisco, California 94122


    Get Directions

For those who take care of their overall well-being with exercise, yoga, and balanced nutrition
Warm weather essentials that prep bods for the sun with tanning, toning, and beach-ready apparel