None listed
Conditions
Brief summary
This is a randomised crossover study that seeks to examine the influence of varying calf raise test cadence on the muscle activity, fatigue, thickness, and oxygenation of the triceps surae muscles (medial gastrocnemius, lateral gastrocnemius, and soleus) in a comparative way between males and females. The Calf Raise Test is used to assess triceps surae muscle strength-endurance in clinics and in research, but variations in protocols exist. How these variations influence triceps surae fatigue mechanics is of interest for targeted prescription of exercise, and needs consideration of sex. We anticipate greater relative activation and quicker fatigue of the medial gastrocnemius and lateral gastrocnemius muscle at the faster than slower cadence. We also anticipate the influence of cadence to be less pronounced in females than males.
Interventions
This is a randomised crossover trial with repeated measures performed in a laboratory. Participants will be required to attend a single session lasting around 120 to 150 minutes.
The aim of the study is to assess the influence of calf raise cadence (60 beats per minute vs 120 beats per minute) on muscular mechanisms (activity, fatigue, thickness, and oxygenation) in a comparative way between males and females.
Two kinesiology students trained by an expert physiotherapist / researcher (over 15
This is a randomised crossover trial with repeated measures performed in a laboratory. Participants will be required to attend a single session lasting around 120 to 150 minutes. The aim of the study is to assess the influence of calf raise cadence (60 beats per minute vs 120 beats per minute) on muscular mechanisms (activity, fatigue, thickness, and oxygenation) in a comparative way between males and females. Two kinesiology students trained by an expert physiotherapist / researcher (over 15 years experience, over 500 calf raise test administration) will supervise the session. The same kinesiology student will provide all verbal instructions. Sessions will be conducted one-on-one, with only one participant present at a time. The cadence of the calf raise test will be audible via a metronome, and supervised by the kinesiology students. The 3D motion capture system will enable confirmation of the actual cadence followed by participants following test completion. Both the 60 and 120 beats per minute conditions will be assessed within the same session, with 40 minutes rest between conditions. Only the dominant leg (leg used to kick a ball) will be tested. Adherence to the calf raise test protocol will be visually monitored throughout the session my the two trained kinesiology students.
Sponsors
McGill University
Study design
Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Open (masking not used)
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
A convenience sample of healthy young adults from the Montreal area. Inclusion criteria are: 1. Ages 18 to 40 years. 2. No health concerns that would inhibit participation 3. Have not performed high intensity exercise within 24 hours of visit. 4. Have not drank alcohol within 24 hours and caffeine within 12 hours before the visit. 5. Have no musculoskeletal or cardiovascular impairments in the 3 months prior to data collection (confirmed by passing the PAR-Q). 6. Willing to provide informed consent to participate. 7. No history of an Achilles tendon rupture. 8. At least moderate physical activity levels on the Short Form International Physical Activity Questionnaire
Exclusion criteria
Individuals that are older than 40 years or younger than 18 years old, that have health concerns identified using the PAR-Q, that have a history of Achilles tendon rupture, and that present with low levels of physical activity (based on the Short Form International Physical Activity Questionnaire) will be excluded.
Outcome results
None listed