Running dynamics pod

A MoCap consisting of six Oqus infrared cameras (Oqus 7+, Qualisys, Gothenburg, Sweden) surrounding the subject was utilised to monitor the positions of two reflective markers, one on the anterior and the other on the posterior part of the foot. In addition, each subject was equipped with a Garmin Running Dynamics Pod (Garmin Ltd., Olathe, KS, USA), which was placed on the lower lumbar region of the body in accordance with the manufacturer’s instructions. Running in place was also performed on a bilateral force plate (S2P, Science to Practice Ltd., Ljubljana, Slovenia). Data from the MoCap were acquired using the Qualisys Track Manager (QTM, Qualisys, Gothenburg, Sweden); these values provided by the Garmin Running Dynamics Pod were collected by the corresponding app on a Forerunner 945 watch (Garmin Ltd., Olathe, KS, USA); the bilateral force plate was connected to a Dewe-43 analogue-to-digital converter which utilised DewesoftX software (Version 2022.1, Dewesoft Ltd., Trbovlje, Slovenia). These data were collected at 256, 1, and 1000 Hz, respectively.
The Garmin Running Dynamics Pod (Figure 1) measured 6 running parameters, including GCT, simultaneously [24 ].

Each participant was equipped with a smart patch, three Dytran 7300A5 (MEMS) uniaxial variable-capacitance accelerometers positioned perpendicular to each other (sensitivity: 80 mV/g, range: 50 g, mass: 12 g, Dytran Instruments Inc, Chatsworth, CA, USA), two reflective markers on each foot, and Garmin Running Dynamics Pod (Olathe, KS, USA). The smart patch, Dytran MEMS accelerometers, and Garmin Running Dynamics Pods were placed in the lower lumbar region, while two reflective markers were placed in the front part of the participants’ shoes (one on the right shoe and one on the left shoe). The markers were recorded by an infrared (kinematic) motion capture system consisting of 6 Oqus cameras (Oqus 7+, Qualisys, Gothenburg, Sweden). In addition, all measurements were obtained while running in place on bilateral force plates (S2P, Science to Practice Ltd., Ljubljana, Slovenia), see Figure 1.
Dytran accelerometers and S2P bilateral force plates were wired to two synchronized 24-bit Dewe-43 analogue-to-digital converters and DewesoftX data acquisition software (Dewesoft d.o.o., Trbovlje, Slovenia). The Oqus cameras were connected to Qualisys Track Manager (QTM, Qualisys, Gothenburg, Sweden), the Garmin Running Dynamic Pod was connected to a Garmin Forerunner 945, and a smart patch was connected to a custom Windows application (Bio2BITWinApp, STMicroelectronics, Milan, Italy).