PEAK Qualified Trainers

PEAK Personal Training offers you the best opportunity to work with the most qualified, full-time Professional Personal Trainers we can find.  When we look for Trainers to partner with PEAK, we look for Education, Experience and Enthusiasm. Each of our available trainers have Advanced Educations and nearly 30 years of Certified Experience in the field of Exercise, Fitness and Nutrition.  And all of them bring tremendous Enthusiasm and Passion to their clients.  Nothing less than the best is acceptable at PEAK Personal Training!



Phone: 503-789-9783



Denise Allen brings passion and commitment to her profession as a Personal Trainer and Nutrition Therapy Practitioner.  Denise leads by example ~ she practices what she preaches and successfully teaches her clients to follow her lead.  Denise started her career as a group fitness instructor in 1986. Her professional accomplishments also include a Professional Dancer (NBA Trailblazers) and Dance Team Coach (Lake Oswego High School).  Denise coached her students to three consecutive State Championships.  Denise actively competes in triathlon, road races and the Portland to Coast Walk.


  • National Academy of Sports Medicine Certified Personal Trainer
  • American Council of Exercise Certified Group Fitness Instructor
  • Nutrition Therapy Practitioner
  • Precision Nutrition Coach
  • RESTART Instructor
  • CPR/AED Certified
  • American Sport Education Accredited Coach
  • IDEA Health and Fitness Member
  • High School Dance Team Coach: 1996-2009 (Won 3 State Titles)
  • Working in Fitness Industry since 1986

David Walker Clapp

SUCK IT UP Fitness

Phone: 971-219-0919


img_1254David began his pursuit toward health and wellness in 1979. Overcoming childhood illnesses made him discover his passion for simply feeling good and strong.  After earning his Bachelors Degree (1987) in Exercise Physiology and Athletic Training, David’s career quickly became highly diverse.  He was a Group Exercise Instructor all through college and a Physical Therapy Intern immediataly after college.  He was also the Head Athletic Trainer for a professional soccer team (NY/NJ Eagles) and an assistant Athletic Trainer and Strength Coach at Pace University. Additionally, David was a college professor of Exercise Science.

David started his first personal training business, All American Fitness, Inc, in 1989.  In 1998, David moved to the Pacific Northwest and decided to take a hiatus from his fitness career to pursue sales.  David did quite well, becoming a top-producing sales rep in the entire Northwest.  David also went from being a 175 lbs triathlete to a 230 lbs sales executive.  That’s correct – David became a stress eater and got FAT!  David also understands how to break the bad habits and attitudes that lead to ill health.  In 2002, David returned to Fitness Training and rediscovered his passion for health and fitness.

In 2004, David started his second personal training business, SUCK IT UP Fitness, Inc. He also organized and lead a highly successful Boot Camp training for 12 consecutive years. David appeared on the reality television show ‘Little People, Big World’ as the Fitness Trainer for Amy and Zach Roloff. In 2016, David started his third personal training business, PEAK Personal Training, LLC.  David also speaks regularly on a variety of topics to many local schools and businesses.

  • Athletic Trainer
  • Strength Coach
  • College Professor of Exercise Science
  • Physical Therapy Intern
  • Level 1 USWF Olympic Lifting Coach
  • Licensed Chiropractic Assistant
  • Group Exercise Instructor
  • Professional Speaker