Group Fitness Instructor injury survey
3,175 group fitness instructors (aged 16 - 70) answered questions related to current training practices and typical musculoskeletal injuries.
Aim of the Study
To investigate the incidence of injury and training habits of Les Mills group fitness instructors.
Method
3,175 group fitness instructors (aged 16 - 70) answered questions related to current training practices and typical musculoskeletal injuries.
Results
Overall, instructors had a well above average training volume - typically completing 11 - 13 hours per week.
Despite the above average number of exercise hours, just 13% reported injuries intense enough to demand a week of unplanned rest.
Most of the instructors surveyed had a lot of variety in their training program; incorporating a mix of cardiovascular, strength and core / flexibility training. The time spent in each training modality was parallel to the recommendations of the American College of Sports Medicine (ACSM) fitness guidelines.
Conclusion
In essence, balance is the key to preventing injury. If people want to get fit and stay injury free, a variety of group fitness classes is vital.
These findings have been incorporated into Les Mills’ ongoing instructor education.
Born To Move Youth Leadership Study
This study explored the perceptions of youth leaders participating in peer-led BORN TO MOVE™ classes.
Continuous Glucose Monitoring Study
Thirty-five healthy, active adults wore a continuous glucose monitor for two weeks, maintained their typical exercise routines, and recorded a range of different data.
Habit Study
This study compares the effectiveness of multiple exercise habit-forming strategies, including goal setting, intrinsic motivation, preparation habit formation and instigation habit formation.
BODYBALANCE and Exam Stress
This study highlights how BODYBALANCE™ workouts can ease pre-exam anxiety.
Digital and Live Intensity
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.
LES MILLS TONE and postpartum anxiety
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.
LES MILLS CORE and Lower Back pain
Eight weeks of bi-weekly LES MILLS CORE™ workouts can benefit people suffering from lower back pain.
Squat load and depth in BODYPUMP
This study looked at the effect of these parameters on muscle activation in the lower limb during a typical BODYPUMP squat condition.
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Social identity in group fitness
The importance of instructors creating a sense of “we” and “us” in group exercise classes.
Les Mills BODYPUMP and Athleticism Study
BODYPUMP™ generates athletic development; improving strength, power and speed.
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BODYPUMP and Active Aging
Two 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.
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BODYJAM research
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.
BODYBALANCE/BODYFLOW and Heart Rate Variability Study
BODYBALANCE / BODYFLOW and Heart Rate Variability Study
Les Mills Running and Core Training Study
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.
Les Mills Groupness Study
The Les Mills Lab team recently partnered with Penn State University’s Dr Blair Evans to further investigate the group effect.
Push-up study
The great push-up debate – will doing them on your knees increase your upper body strength and make you strong enough to do them on your toes?
LES MILLS GRIT & overtraining study
HIIT involves working out at above 85 percent of the maximum heart rate.
The effects of LES MILL CORE group fitness classes and exercise on stress and the quality of life of medical students
The life of a medical student is stressful and as a result, there can be serious consequences on student health such as high burnout, high rates of depression, stress, low quality of life and fatigue. Read more.
THE TRIP study
Do the immersive qualities of THE TRIP increase the intensity of a person’s workout without them noticing how hard they are pushing themselves?
PHYSIOLOGICAL AND HORMONAL RESPONSES TO BODYPUMP STUDY
This study delved into how people’s physiological and hormonal responses to two different kinds of workouts compared, even when the calories burned were exactly the same.
BORN TO MOVE study
Physical inactivity and increased prevalence of sedentary behaviors in youth are associated with negative health indicators such as obesity and type 2 diabetes.
Developing and testing a motivating communication style
Research has shown that fitness instructors can powerfully affect participants’ motivation and intention to stay active as a results of their communication style.
Group Fitness Instructor injury survey
3,175 group fitness instructors (aged 16-70) answered questions related to current training practices and typical musculoskeletal injuries.
LES MILLS SPRINT study
Replacing just one session of moderate-intensity exercise with two HIIT classes per week for six weeks significantly improves the health, fitness and strength of physically active adults.
LES MILLS GRIT and abdominal adiposity study
Examining the effect of a combination of group-based HIIT training (LES MILLS GRIT™ Cardio workouts) and conventional gym training on physical fitness and body composition parameters in healthy adults.
BODYPUMP and bone density study
BODYPUMP is an ideal way to stay fit and strong and remain healthy as we age.
RPM study
Eeight weeks of RPM led to physiological and metabolic adaptations that are associated with reduced disease risk.
BODYPUMP Rep Effect Study
What causes the biggest energy output - slow or fast contractions? Or, in BODYPUMP language, a slow 4/4 tempo, or the faster singles?
BODYBALANCE and benefits for older populations study
ItIt is well known that when we get into our 40s and 50s our ability to balance and perform functional tasks begins to deteriorate. Les Mills’ BODYBALANCE™ is a blend of yoga, Pilates and tai chi that contains a mix of moves that can address these changes.
LES MILLS GRIT soccer study
Can LES MILLS GRIT™ classes (a form of high-intensity interval training involving explosive plyometric and dynamic strength exercises) improve VO2max and body composition in elite women’s soccer players?
Get fit with LES MILLS GRIT study
Can the high-intensity interval training of LES MILLS GRIT™ cause a change in fit adults?
BODYPUMP: improving strength and speed in older adults
Does BODYPUMP™ improve maximal strength and walking speed in healthy and active older adults?
LES MILLS CORE study
Which type of exercise - isolation or integration - will provoke the greater muscle activation and therefore provide optimal results in aiding sports performance, rehab and general fitness?
Get fit together study
Can LES MILLS™ group fitness classes satisfy the ACSM recommendations and make significant changes to people’s health?
Intrinsic satisfaction study