Primary findings indicate that there is ( a ) strong evidence that poor performance on a set distance run for time is a predictor for MSK-I risk in both genders ; ( b ) strong evidence that poor performance on timed shuttle runs is a predictor for MSK-I risk in males ; ( c ) moderate evidence in males and limited evidence in females that poor performance on a timed step test is a predictor of MSK-I risk ; and ( d ) limited or insufficient evidence that poor performance on the Cooper run test , maximal and submaximal aerobic grade d exercise tests , and the Conconi test are predictors of MSK-I risk in males or females or both .
Several measures of CRE are risk factors for training-related MSK-I in military and civilian athletic population s , indicating that CRE may be an important measure for MSK-I risk stratification
A systematic review of the association between physical fitness and musculoskeletal injury risk : part 1—cardiorespiratory endurance .
J Strength Cond Res 31(6 ) : 1744–1757 , 2017—Musculoskeletal injuries ( MSK-Is ) are a significant health problem for both military and athletic population s. Research indicates that MSK-I is associated with physical fitness ; however , the association between specific components of physical fitness and MSK-I in military and athletic population s has not been systematic ally examined .
Changes in running mechanics and spring-mass behaviour induced by a 5-hour hilly running bout
Abstract The aim of this study was to investigate changes in running mechanics and spring-mass behaviour with fatigue induced by 5-hour hilly running ( 5HHR ) . Running mechanics were measured pre- and post-5HHR at 10 , 12 and 14 km · h-1 on an instrumented treadmill in eight ultramarathon runners , and sample d at 1000 Hz for 10 consecutive steps . Contact ( tc ) and aerial ( ta ) times were determined from ground reaction force ( GRF ) signals and used to compute step frequency ( f ) . Maximal GRF , loading rate , downward displacement of the centre of mass ( Δz ) , and leg length change ( ΔL ) during the support phase were determined and used to compute both vertical ( Kvert ) and leg ( Kleg ) stiffness . A significant decrease in tc was observed at 12 and 14 km · h-1 result ing in an increase of f at all speeds . Duty factor and Fmax significantly decreased at 10 km · h-1 . A significant increase in Kvert and Kleg was observed at all running speeds with significant decreases in Δz and ΔL . Despite the shorter duration , the changes in running mechanics appeared to be in the same direction ( increased f and Kvert , decrease in Δz and Fmax ) but of lower amplitude compared with those obtained after an ultra-trail or an ultramarathon
Primary findings indicate that there is ( a ) strong evidence that poor performance on a set distance run for time is a predictor for MSK-I risk in both genders ; ( b ) strong evidence that poor performance on timed shuttle runs is a predictor for MSK-I risk in males ; ( c ) moderate evidence in males and limited evidence in females that poor performance on a timed step test is a predictor of MSK-I risk ; and ( d ) limited or insufficient evidence that poor performance on the Cooper run test , maximal and submaximal aerobic grade d exercise tests , and the Conconi test are predictors of MSK-I risk in males or females or both .
Several measures of CRE are risk factors for training-related MSK-I in military and civilian athletic population s , indicating that CRE may be an important measure for MSK-I risk stratification
A systematic review of the association between physical fitness and musculoskeletal injury risk : part 1—cardiorespiratory endurance .
J Strength Cond Res 31(6 ) : 1744–1757 , 2017—Musculoskeletal injuries ( MSK-Is ) are a significant health problem for both military and athletic population s. Research indicates that MSK-I is associated with physical fitness ; however , the association between specific components of physical fitness and MSK-I in military and athletic population s has not been systematic ally examined .