This dataset contains the elbow's surface electromyography (sEMG) and kinematic (joint angle) data of ten subjects (6 males and 4 females) when performing different exercises of Flexion - Extension and Pronation - Supination. For the Flexion - Extension movements, the data was collected with the subject standing performing the movement with his arm next to the body; for the Pronation - Supination movements, the subject was seated in a chair with his forearm supported on a table. The EMG data was acquired using a Shimmer3 EMG device and the joint angle was estimated using the integrated IMUs in the Shimmer3 device. The following excercises were performed by each subject: Flexion - Extension without load, Flexion - Extension with 3lb dumbbel, Flexion - Extension with 5lb dumbbell, Pronation - Supination without load, Pronation - Supination with 3lb dumbbell and Pronation - Supination with 5lb dumbbell. The data is stored in a folder for each one of the subjects, each folder contains the following 13 files: one file named subject_info includes the subject ID, age, height, weight, arm length, hand width and gender. The remaining 12 files (2 for each exercise) are named with the following convention (id: subject id, movement: excercised performed, set: training or test set, load: external load in grams). The data in each file is structured as follows: raw sEMG Channel 1 | raw sEMG Channel 2 | filtered sEMG Channel 1 | filtered sEMG Channel 2 | joint angle For Flexion - Extension: Channel 1 - Biceps Brachii and Channel 2 - Triceps Brachii. For Pronation - Supination: Channel 1 - Pronator Teres and Channel 2 - Biceps Brachii. The sEMG signal was filtered using a fourth order Chebyshev filter with cutoff frequencies of 10Hz and 500Hz, using a band ripple of 5%.