Motion-control shoes help maintaining low loading rate levels during fatiguing running in pronated female runners.
Gait Posture
; 73: 65-70, 2019 09.
Article
in En
| MEDLINE
| ID: mdl-31299505
ABSTRACT
BACKGROUND:
The use of motion-control shoes may assist pronated runners to maintain their stability throughout a fatiguing running. However, there are no studies describing the effects of fatigue on running biomechanics of runners with pronated feet. RESEARCH QUESTION Whether motion-control shoes can assist pronated recreational female runners to maintain impact loading patterns following a fatiguing protocol?METHODS:
Twenty-two female rearfoot runners with foot pronation were asked to perform a fatiguing treadmill running protocol using a neutral shoe or a motion-control shoe in two separate occasions. Before (Pre-fatigue) and after the fatiguing protocol (Post-fatigue), participants were asked to run overground on a track that contained two force platforms to record ground reaction forces and moments. Running speed were 3.3â¯mâ¯s-1 (±2.5% variability). The effects of shoe type and fatigue were investigated on the peak vertical impact ground reaction force (pvIGRF), time to reach pvIGRF, vertical loading rate (LR) and peak negative foot free moments (FM).RESULTS:
Pronated runners presented lower LR with motion-control shoes compared to neutral shoes Pre- (pâ¯<â¯0.005; -18⯱â¯25%) and Post-fatigue (pâ¯<â¯0.001; -27⯱â¯15%). This change in LR was predominantly driven by a longer time to reach pvIGRF with motion-control shoes (pâ¯<â¯0.001, 39%). The pvIGRF and LR increased after fatiguing running with neutral shoes (pvIGRF pâ¯<â¯0.05; 18⯱â¯28%; LR pâ¯<â¯0.05; 15⯱â¯22%), but not with motion-control shoes. Furthermore, there were strong correlations between FM and LR for both Pre-fatigue (r=-0.61, pâ¯<â¯0.005) and Post-fatigue measurements (r=-0.66, pâ¯<â¯0.01), but only for the motion-control shoes.SIGNIFICANCE:
These results suggest that motion-control shoes prevent exacerbated fatigue-related increases in mechanical loading following initial contact in pronated female runners.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Running
/
Shoes
/
Pronation
/
Foot
Limits:
Adolescent
/
Adult
/
Female
/
Humans
Language:
En
Journal:
Gait Posture
Journal subject:
ORTOPEDIA
Year:
2019
Document type:
Article