Overuse Injury
Conditions
Keywords
Running injuries, footwear, alternating load
Brief summary
The proposed study will investigate the effect of alternating footwear model and workout-type on the occurrence of running-related pain. To achieve this goal participants will be randomly assigned into one of four different groups who will perform: 1) the same workout throughout a week in the same running shoe model, 2) alternating workout-types throughout the week in the same shoe model, 3) the same workout throughout a week in alternating shoe models, and 4) alternating workouts in alternating shoes. Participants will be characterized based on body alignment, strength, injury and training history. Pain and injury status will be monitored.
Interventions
OTHERAlternating run training load
Runners will perform a variation of workouts, consisting of interval/speed work, tempo runs, and long-slow distance runs throughout each 7-day period
OTHERAlternating footwear
Runners will be assigned identical training sessions over a 7-day period but will alternate use of two different models of running shoes across successive workouts (Nike Pegasus and Nike Zoom Streak). The Zoom Streak has 10mm less midsole material, a less supportive heel counter and more flexible forefoot providing a more responsive feel to the runner.
OTHERConstant training
Runners will be assigned identical training sessions over a 7-day period.
OTHERConstant footwear
Runners perform runs in two pairs of the same assigned neutral-cushioned running shoe (Nike Pegasus).
Sponsors
University of British Columbia
British Columbia Sports Medicine Research Foundation
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
19 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* Subjects in this study will include adults (men and women) between the ages of 19 and 60, have been running on a regular basis (minimum once per week) over the past 6 months, are able to run for 60 minutes continuously, could tolerate 20-40km per week in training, and have not experienced a running related injury requiring a stoppage of 2-weeks or more in the past 6 months. Only neutral and pronated foot postures (Foot Posture Index between -2 and 8) will be recruited
Exclusion criteria
* have a history of surgery to their plantar fascia or Achilles tendon, * have a diagnosis of osteoarthritis - or other degenerative musculoskeletal disorder - affecting the lower extremity, * take analgesic or anti-inflammatory medication 2 or more times per week over the past 4 weeks, * take part in high impact activities 2 or more times per week during the study period
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Running injuries | 13-weeks | When an participant misses 3 consecutive assigned running workouts. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Running-related pain | 13-weeks | 11-point numerical rating scale of overall pain associated with running |
| Region specific running-related pain | 13-weeks | Numerical rating scale for pain at selected anatomical locations: gluteal, low back, groin, thigh, hamstring, knee, calf, Achilles, ankle, foot. |
| Footwear comfort | 13-weeks | 11-point rating of footwear comfort |
| Run Quality | 13-weeks | Study specific 11-point measure of how the footwear used affected each run's quality |
Countries
Canada
Outcome results
None listed