Proto-Aging data collection: a comprehensive dataset to assess lower limb muscle force and function in healthy young and elderly adults

The Proto-Aging data collection is composed of raw and processed data collected on 20 healthy young adults (age: 28.4 ± 5.0 years, BMI: 22.2 ± 2.8 kg/m2, sex: 10F/10M) and 5 elderly participants (age: 68.0 ± 2.0 years, BMI: 25.6 ± 2.7 kg/m2, sex: 3F/2M). The dataset includes surface electromyography (sEMG) and dynamometry data synchronously collected while the subjects performed a maximum voluntary (and involuntary) isometric contraction test (MVIC), experimental data from a gait assessment (i.e., one static trial and 10 walking trials at self-selected walking speed on level ground; comprising of motion capture, force plates and sEMG data), and the 3D reconstructions of the major thigh muscles of the dominant leg segmented on axial MRI scans. Participants' demographics and additional information are further provided for completeness.