University of Fraser Valley, January 2024

This study highlights how BODYBALANCE™ workouts can ease pre-exam anxiety. We found that when the nursing students did BODYBALANCE before their exam, they significantly reduced their anxiety levels. However, that reduction in anxiety didn’t happen when they spent the same amount of time reading their notes before the exam. Find out more.

Published in Journal of American College Health.

University of Colorado, Boulder, March 2023

This study compares exertion and enjoyment levels between a live BODYCOMBAT™ class in the gym and two digital formats (livestream and on demand) of the same workout. Participants’ average heart rate was 14 percent higher during the gym class compared to the livestream and on demand sessions. The gym-based workout was also rated as being 13 percent more enjoyable and 14 percent more satisfying. Find out more.

Published in Frontiers in Sports and Active Living

University of the Fraser Valley, Canada, 2022

This study highlights how eight weeks of bi-weekly LES MILLS CORE™ workouts can benefit people suffering from lower back pain. Researchers found the focus on dynamic core stability increased abdominal strength and control, and improved abdominal and back extensor endurance. Find out more

Published in International Journal of Kinesiology & Sports Science

University of the Fraser Valley, Canada, 2022

With rates of postpartum anxiety on the rise, this important study shows how eight weeks of bi-weekly LES MILLS TONE™ workouts can significantly ease any anxiety and stress new mothers experience. Find out more

Published in The Health & Fitness Journal of Canada

University of Queensland, Australia, 2019

This study demonstrates the importance of instructors creating a sense of “we” and “us” in group exercise classes. Instructors who are perceived as part of the ”in-group”, rather than being separated, are more likely to create higher levels of comfort in the class environment and ultimately positively influence attendance and effort. Find out more.

Published in Psychology of Sport & Exercise

Kathy O’Neill and Stelios Psycharakis, University of Edinburgh UK, 2021

Squat training in BODYPUMP™ has two key variables: depth and load. This study looked at the effect of these parameters on muscle activation in the lower limb during a typical BODYPUMP squat condition. Depth of squatting had a significant effect on average and peak activity of the quadriceps and gluteus maximus, and peak activity of biceps femoris and lateral gastrocnemius. The effect of load was significant for mean and peak activity of gluteus maximus and lateral gastrocnemius. Find out more.

Published in Sports Biomechanics

DeMers et al, American Council of Exercise, 2020

This study demonstrates that BODYJAM™ meets the recommended intensity guidelines for exercise programming and is an effective workout for improving cardiorespiratory fitness, as well as for weight loss and weight maintenance. Find out more.

Published in the International Journal of Research in Exercise Physiology

Dr Jinger Gottschall, USA, 2020

This study provides evidence that the calming effect of adding BODYBALANCE/BODYFLOW sessions to your training results in valuable physical and mental health benefits. BODYBALANCE/BODYFLOW is a useful recovery solution for managing the everyday pressures of a busy modern lifestyle resulting in participants feeling more positive, confident and motivated. Find out more.

Published in Medicine & Science In Sports & Exercise

Loughborough University, UK, 2019

BODYPUMP generates athletic development; improving strength, power and speed. In addition, total score of athleticism is strongly correlated to lifting ability within the training program. BODYPUMP offers an alternative training mechanism to assist athletic/sports performance. Find our more.

Published in Archives of Physical Health and Sports Medicine

Loughborough University, UK, 2020

2 BODYPUMP classes over a 12 week period generates reductions in TNF Alpha (an inflammatory marker) along with significant gains in functional ability, strength and weight loss in a group of sedentary middle aged individuals. Find out more.

Published in Heliyon - A Cell Press Journal

Penn State, USA, 2019

Three-dimensional core training inherent in CXWORX is shown to improve running performance and be beneficial for improving joint symmetry for injury reduction, deep hip muscle training for knee alignment, and abdominal training for efficient force transmission. Find out more.

Published in the Journal of Sports Medicine and Physical Fitness.

Penn State, USA, November 2018

‘The group effect’ plays a powerful role in positively influencing a club member’s overall workout experience – their enjoyment, satisfaction, exertion and their intention to return. Find out more.

Published in Sport, Exercise, and Performance Psychology.

Penn State, USA, May 2018

Knee push-ups are shown to be a valuable alternative to toe push-ups for building and maintaining strength as the overall ratio of muscle activation in the upper body - when you do a push-up on your knees or on your toes - is similar. Find out more

Published in the Journal of Applied Biomechanics.

Penn State, USA, May 2018

Weekly HIIT workouts need to be maximized at 30-40 minutes in the maximum training zone to get optimum benefits and prevent overreaching. Find out more.

Journal publication of this study is currently pending.

Auckland University of Technology, New Zealand, April 2017

Resistance training - in the form of BODYPUMP - triggers far greater fat-burning and other healthy responses in the body than its calorie count reflects. Find out more

Published in the Journal of Science and Medicine in Sport.

University of New England, USA, November 2017

Participation in regular CORE improves quality of life and reduces stress. Find out more

Published in The Journal of the American Osteopathic Association.

Penn State, USA, June 2017

An immersive cycling environment delivers high intensity training without high perceived effort in beginners. Find out more

Published in the Medicine and Science in Sports and Exercise Journal.

Edge Hill University, UK, August 2016

BORN TO MOVE™ increases motivation, enjoyment and fitness in 10 – 11 year olds. Find out more

Published by BMC Public Health.

Penn State, USA, June 2016

Published abstract: Gottschall, J. S., Hastings, B. (2016). The ACSM physical fitness guidelines for cardiovascular, strength, and flexibility training minimize overuse injury in group fitness instructors. Find out more

Medicine and Science in Sports and Exercise, 48, 673. doi:10.1249/01.mss.0000487021.61198.dd

Curtin University, Australia, June 2016

A motivational coaching method based on the Self Determination Theory is effective in increasing motivation and adherence in RPM™. Find out more

Published in the Scandinavian Journal of Medicine and Science in Sports.

Penn State, USA, April 2016

Six weeks of LES MILLS SPRINT™ increases cardiovascular fitness and body composition in moderately active adults. Find out more

Published in the Journal of Fitness Research.

Penn State, USA, September 2015

BODYPUMP™ is shown to be effective at increasing bone density in healthy adults. Find out more

Published in the Journal of Bone Health and Metabolism.

University of Nicosia, Cyprus, January 2016

Eight weeks of LES MILLS GRIT™ improves body composition and fitness in active adults. Find out more

Published in the Journal of Sports Medicine and Physical Fitness.

Loughborough University, UK, August 2015

Eight sedentary participants completed eight weeks of RPM™ with significant changes observed in cardiovascular and metabolic health markers. Find out more

Published in the Journal of Fitness Research.

Penn State, USA, April 2015

The BODYPUMP™ Rep Effect is an effective strength and conditioning tool. Find out more

Published in the Journal of Fitness Research.

University of the Sunshine Coast, Australia, November 2014

Twelve weeks of BODYBALANCE™/BODYFLOW® improved balance and functional performance in middle-aged and older adults. Find out more

Published in Clinical Interventions in Aging.

University of the Sunshine Coast, Australia, July 2014

BODYPUMP™ is shown to be an effective strategy to improve strength and gait speed in healthy adults aged 55 plus. Find out more

Published in the Journal of Science and Medicine in Sport.

Penn State, USA, April 2014

LES MILLS GRIT can be an effective protocol for soccer players and may maximize competition performance while minimizing training time. Find out more

Published by the Journal of Fitness Research.

Penn State, USA, March 2014

Six weeks of LES MILLS GRIT™ increases fitness and reduces cardiovascular risk in active individuals. Find out more

Published by the Open Journal of Preventative Medicine.

Penn State, USA, March 2013

Integration core exercises such as hovers and planks are found to increase muscle activation and provide a more effective training stimulus than isolated exercises such as crunches. Find out more

Published by the Journal of Strength and Conditioning Research.

Penn State, USA, December 2012

Thirty weeks of Les Mills’ classes reduces cardiovascular risk in sedentary individuals. Find out more

Published by the Open Journal of Preventative Medicine.

Penn State, USA, 2012

Exercisers’ intrinsic satisfaction increases in a group fitness environment when they feel more competent, involved in a group task and encouraged by the instructor. Find out more.

Published by Frontiers in Psychology.