Guddi
2011-07-06, 07:32
Orthopedics. 2011 Jul 7;34(7):e320-3. doi: 10.3928/01477447-20110526-25.
Barefoot-simulating Footwear Associated With Metatarsal Stress Injury in 2
Runners.
Giuliani J, Masini B, Alitz C, Owens BD.
Stress-related changes and fractures in the foot are frequent in runners. However, the causative factors, including anatomic and kinematic variables, are not well defined. Footwear choice has also been implicated in contributing to injury patterns with changes in force transmission and gait analyses reported in the biomechanical literature. Despite the benefits of footwear, there has been increased interest among the running community in barefoot running with proposed benefits including a decreased rate of injury. We report 2 cases of metatarsal stress fracture in experienced runners whose only regimen change was the adoption of barefoot-simulating footwear. One was a 19-year-old runner who developed a second metatarsal stress reaction along the entire diaphysis. The second case was a 35-year-old ultra-marathon runner who developed a fracture in the second metatarsal diaphysis after 6 weeks of use of the same footwear. While both stress injuries healed without long-term effects, these injuries are alarming in that they occurred in experienced male runners without any other risk factors for stress injury to bone. The suspected cause for stress injury in these 2 patients is the change to barefoot-simulating footwear. Runners using these shoes should be cautioned on the potential need for gait alterations from a heel-strike to a midfoot-striking pattern, as well as cautioned on the symptoms of stress injury.
http://www.ncbi.nlm.nih.gov/pubmed/21717998
Att risken för stressfrakturer i foten ökar när man börjar springa barfota är något man börjat misstänka de senaste åren. Det här är de första hyffsat dokumenterade fallen.
Och så en "studie" utförd av en väldigt ambitiös gymnasiestudent:
The Effect of Footwear Habits of Long-Distance Runners on Running Related Injury: A Prospective Cohort
Every year, about 60% of distance runners will suffer a running-related injury that not only temporarily affects their training, but can also have long-term psychological and physical effects. Following recent publications, barefoot running has gained attention for its claim to reduce running related injury and promote a natural running stride. This study directly compares injury rates between barefoot and shod runners and for the first time quantitatively evaluates the risk present in transitioning from shod to barefoot running. The following question will be examined: How does footwear habit (barefoot, transitioning or shod) affect the injury rates of long distance runners? A series of surveys were emailed to participants to record running habits and injuries suffered over a course of twelve weeks. The data supported that runners transitioning from shod to barefoot running had the highest prevalence with an average of 32% of its runners in an injured state each week. Shod runners had the lowest prevalence with 21% and barefoot runners (prevalence of 29%) were in the middle. Furthermore, relative risk calculations, which are based on a ratio of prevalence, showed that barefoot runners are 1.35 times as likely to suffer and injury as shod runners. Transitioning runners are 1.48 times as likely as shod runners to suffer an injury. This study supports that shod running presents the lowest risk of injury for distance runners. Despite recent speculation, barefoot running in industrialized countries does not appear to reduce running related injury. Thus it is not recommended that healthy runners transition to barefoot running for the sole purpose of reducing injury risk.http://runningtimes.com/rt/images/BarefootStudyReport.pdf
Barefoot innebar antingen barfota eller minimalistiska skor. För att räknas som barfotalöpare skulle man ha sprungt "barefoot" i minst 4 månader.
Två ganska dåliga studier/rapporter men de ger ju ändå en liten hint om att alla med stor sannolikhet inte kommer bli skadefria om de bara börjar springa minimalistiskt...
Barefoot-simulating Footwear Associated With Metatarsal Stress Injury in 2
Runners.
Giuliani J, Masini B, Alitz C, Owens BD.
Stress-related changes and fractures in the foot are frequent in runners. However, the causative factors, including anatomic and kinematic variables, are not well defined. Footwear choice has also been implicated in contributing to injury patterns with changes in force transmission and gait analyses reported in the biomechanical literature. Despite the benefits of footwear, there has been increased interest among the running community in barefoot running with proposed benefits including a decreased rate of injury. We report 2 cases of metatarsal stress fracture in experienced runners whose only regimen change was the adoption of barefoot-simulating footwear. One was a 19-year-old runner who developed a second metatarsal stress reaction along the entire diaphysis. The second case was a 35-year-old ultra-marathon runner who developed a fracture in the second metatarsal diaphysis after 6 weeks of use of the same footwear. While both stress injuries healed without long-term effects, these injuries are alarming in that they occurred in experienced male runners without any other risk factors for stress injury to bone. The suspected cause for stress injury in these 2 patients is the change to barefoot-simulating footwear. Runners using these shoes should be cautioned on the potential need for gait alterations from a heel-strike to a midfoot-striking pattern, as well as cautioned on the symptoms of stress injury.
http://www.ncbi.nlm.nih.gov/pubmed/21717998
Att risken för stressfrakturer i foten ökar när man börjar springa barfota är något man börjat misstänka de senaste åren. Det här är de första hyffsat dokumenterade fallen.
Och så en "studie" utförd av en väldigt ambitiös gymnasiestudent:
The Effect of Footwear Habits of Long-Distance Runners on Running Related Injury: A Prospective Cohort
Every year, about 60% of distance runners will suffer a running-related injury that not only temporarily affects their training, but can also have long-term psychological and physical effects. Following recent publications, barefoot running has gained attention for its claim to reduce running related injury and promote a natural running stride. This study directly compares injury rates between barefoot and shod runners and for the first time quantitatively evaluates the risk present in transitioning from shod to barefoot running. The following question will be examined: How does footwear habit (barefoot, transitioning or shod) affect the injury rates of long distance runners? A series of surveys were emailed to participants to record running habits and injuries suffered over a course of twelve weeks. The data supported that runners transitioning from shod to barefoot running had the highest prevalence with an average of 32% of its runners in an injured state each week. Shod runners had the lowest prevalence with 21% and barefoot runners (prevalence of 29%) were in the middle. Furthermore, relative risk calculations, which are based on a ratio of prevalence, showed that barefoot runners are 1.35 times as likely to suffer and injury as shod runners. Transitioning runners are 1.48 times as likely as shod runners to suffer an injury. This study supports that shod running presents the lowest risk of injury for distance runners. Despite recent speculation, barefoot running in industrialized countries does not appear to reduce running related injury. Thus it is not recommended that healthy runners transition to barefoot running for the sole purpose of reducing injury risk.http://runningtimes.com/rt/images/BarefootStudyReport.pdf
Barefoot innebar antingen barfota eller minimalistiska skor. För att räknas som barfotalöpare skulle man ha sprungt "barefoot" i minst 4 månader.
Två ganska dåliga studier/rapporter men de ger ju ändå en liten hint om att alla med stor sannolikhet inte kommer bli skadefria om de bara börjar springa minimalistiskt...