Alternate Run Study

Not Applicable

Completed

• Conditions: Overuse Injury
• Interventions: Other: Constant training; Other: Alternating run training load; Other: Constant footwear; Other: Alternating footwear

• Registration Number: NCT03082651
• Lead Sponsor: University of British Columbia

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2016-08-01
• Study First Submitted: 2017-03-13
• Study First Submitted QC: 2017-03-13
• Study First Posted: 2017-03-17
• Primary Completion: 2017-11-30
• Study Completion: 2017-12-01
• Status Verified: 2018-01
• Last Update Submitted: 2018-01-03
• Last Update Posted: 2018-01-04

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 300

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

Read More

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

Read More

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Alternate training/Constant footwear	Constant footwear	Group 2 - Runners will perform a variation of workouts, consisting of interval/speed work, tempo runs, and long-slow distance runs throughout each 7-day period. As with Group 1, weekly training volume will increase on a weekly basis. Runners in Group 2 will perform these runs in two pairs of the same assigned neutral-cushioned running shoe (Nike Pegasus).
Alternating training/Alternating footwear	Alternating footwear	Group 4 - Runners will be assigned a variation of workouts throughout each 7-day period and will alternate use of two different models of running shoes across successive workouts (Nike Pegasus and Nike Zoom Streak).
Constant training/Constant footwear	Constant footwear	Group 1 - Runners will be assigned identical training sessions over a 7-day period and will perform these runs in two pairs of the same assigned neutral-cushioned running shoe (Nike Pegasus). The weekly training volume will increase on a weekly basis in order to progressively increase training load in preparation for the half-marathon event.
Constant training/Constant footwear	Constant training	Group 1 - Runners will be assigned identical training sessions over a 7-day period and will perform these runs in two pairs of the same assigned neutral-cushioned running shoe (Nike Pegasus). The weekly training volume will increase on a weekly basis in order to progressively increase training load in preparation for the half-marathon event.
Alternate training/Constant footwear	Alternating run training load	Group 2 - Runners will perform a variation of workouts, consisting of interval/speed work, tempo runs, and long-slow distance runs throughout each 7-day period. As with Group 1, weekly training volume will increase on a weekly basis. Runners in Group 2 will perform these runs in two pairs of the same assigned neutral-cushioned running shoe (Nike Pegasus).
Constant training/Alternating footwear	Alternating footwear	Group 3 - 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.
Constant training/Alternating footwear	Constant training	Group 3 - 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.
Alternating training/Alternating footwear	Alternating run training load	Group 4 - Runners will be assigned a variation of workouts throughout each 7-day period and will alternate use of two different models of running shoes across successive workouts (Nike Pegasus and Nike Zoom Streak).

Primary Outcome Measures

Name	Time	Method
Running injuries	13-weeks	When an participant misses 3 consecutive assigned running workouts.

Secondary Outcome Measures

Name	Time	Method
Running-related pain	13-weeks	11-point numerical rating scale of overall pain associated with running
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
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.

Trial Locations

Locations (1)

Division of Sports Medicine; 🇨🇦 Vancouver, British Columbia, Canada