Hardware Version

Version Used During Ground-based Experiments

EORS_EMG
Telemetry EMG (Myomonitor III Wireless EMG System, Delsys Inc., Boston, MA) was used to obtain muscle activation data of the tibialis anterior, calf (over the medial head of the gastrocnemius), quadriceps (over the rectus femoris), medial hamstrings, and gluteus maximus. The electrodes were not moved between trials, and data were collected at 1000 Hz with a fixed gain of 1000. Each electrode was attached directly to the skin using double-sided adhesive tape specifically designed for use with the system. The area on the skin where the electrodes were to be attached was prepared with rubbing alcohol and fine sandpaper. Three bipolar single-differential electrodes were placed over each muscle belly (DE-2.3, Delsys Inc., Boston, MA). The electrode for each muscle that produced the largest signal in the opinion of the investigators was used during data collection and the additional electrodes were removed.

EORS_FTT
No version description is available for this hardware. Refer to the main description for details.

EORS_FOI
No version description is available for this hardware. Refer to the main description for details.

BRSMTReflex
The Electromyographic (EMG) data was collected using a Bagnoli-8 EMG amplifier system by Delsys Inc., Boston. The electrodes, with a high impedance probe, were placed on the triceps surae and the anterior tibialis muscle groups of the subject.

BEDREST_FTT
No version description is available for this hardware. Refer to the main description for details.

BRSMFSR
The Electromyographic (EMG) data was collected using a Bagnoli-8 EMG amplifier system by Delsys Inc., Boston. The electrodes were placed on the left leg, anterior tibialis, medial and lateral gastrocnemius, medial and lateral soleus, and tendon interface. The ground will be placed on the left shin.

Experiment Participation
Skip to page content Experiment + FTT Test/Re-Test Study   (EORS_FTT)
+ Kinematic and Electromyographic Evaluation of Locomotion on the enhanced-Zero Gravity Locomotion Simulator and in Microgravity   (EORS_EMG)
+ Analysis of Skeletal Muscle Metrics as Predictors of Functional Task Performance   (EORS_FOI)
+ Bed Rest Standard Measures: Tendon Reflex   (BRSMTReflex)
+ Bed Rest Standard Measures: Functional Stretch Reflex   (BRSMFSR)
+ Physiological Factors Contributing to Post Bed Rest Changes in Functional Performance (Functional Task Test)   (BEDREST_FTT)

Mission Participation
Skip to page content Experiment +ECP   (EORS)
+Campaign 17   (ACG)
+DBLS   (DBLS)
+Campaign 3   (Campaign 3)
+HDT30   (HDT30)
+Campaign 11   (CFT70)