Effects of treadmill running and fatigue on impact acceleration in distance running

Abstract

The effects of treadmill running on impact acceleration were examined together with the interaction between running surface and runner's fatigue state. Twenty recreational runners (11 men and 9 women) ran overground and on a treadmill (at 4.0 m/s) before and after a fatigue protocol consisting of a 30-minute run at 85% of individual maximal aerobic speed. Impact accelerations were analysed using two lightweight capacitive uniaxial accelerometers. A two-way repeated-measure analysis of variance showed that, in the pre-fatigue condition, the treadmill running decreased head and tibial peak impact accelerations and impact rates (the rate of change of acceleration), but no significant difference was observed between the two surfaces in shock attenuation. There was no significant difference in acceleration parameters between the two surfaces in the post-fatigue condition. There was a significant interaction between surface (treadmill and overground) and fatigue state (pre-fatigue and post-fatigue). In particular, fatigue when running overground decreased impact acceleration severity, but it had no such effect when running on the treadmill. The effects of treadmill running and the interaction need to be taken into account when interpreting the results of studies that use a treadmill in their experimental protocols, and when prescribing physical exercise.

Effects of graduated compression stockings on skin temperature after running

“…In order to control better the running conditions (speed, slope and hardness of the running surface, air resistance, the environment conditions), participants ran on a treadmill. In this sense, previous studies have showed that running on a treadmill is representative although it is not equal to running overground (García-Pérez et al, 2014Riley et al, 2008). Moreover, the effects of this type of garments in different environments (cold or hot) could also be of great interest.…”

Is Motorized Treadmill Running Biomechanically Comparable to Overground Running? A Systematic Review and Meta-Analysis of Cross-Over Studies

“…Second, this review was restricted to non-incline, shod, non-fatigued motorized MT and constant-velocity running below 25 km/h in healthy adults. Biomechanical differences are likely larger when accelerating [100,101] and when running at higher speeds (i.e., sprinting) on regular MT's [17,21] and may also be impacted by the use of shoes [41] and fatigue status [57,58] and the findings of this review can therefore not be generalized to these conditions. Indeed, special MTs have been developed for sprinting that may reduce biomechanical differences [102][103][104].…”

Effect of 3 Weeks Use of Compression Garments on Stride and Impact Shock during a Fatiguing Run

“…In the second and third running tests participants ran on a treadmill (TechnogymSpA, Gambettola, Italy) wearing the assigned garment for that session (GCS or Placebo). These 2 tests followed the same protocol: participants warmed up at selfselected pace for 10 min (which also served as familiarization time on the treadmill [17]), and subsequently performed a 30-min run at 80 % of their MAS. Impact acceleration parameters were measured during 15 s (in order to reduce the measurement error due to stride variability [2]) every 5 min (0′, 5′, 10′, 15′, 20′, 25′, 30′).…”