## 3 Methodology
### Data Acquisition
As the dataset used in this study is publicly available, the researchers obtained necessary approvals from pertinent authorities, given the involvement of human participants in the study. Table 1 displays detailed information on 25 variations of resistance training exercises commonly performed during strength training sessions, targeting major muscle groups in the upper and lower body. These exercises encompass a diverse range of equipment, such as free weights like barbells and dumbbells for 13, cable machines for 7, and bodyweight exercises for 5. Among these exercises, 19 involve bilateral arm movements, 3 are unilateral, and 3 involve alternate arm movements. The documentation covers various positions, including sitting, standing, lying down, and prone positions. Additional recorded contextual data include the specific targeted muscle groups, the symmetry of the movement, and details about the utilized resistance methods. This information facilitates the analysis of sensor data collected during the real-world execution of complex multi-joint gym routines \begin{table}
\begin{tabular}{l l l l l} \hline \hline
**Muscle Group** & **Gym Exercise Activities** & **Posture** & \
\begin{tabular}{l} **One-Arm, Both or** \\ **Alternate** \\ \end{tabular} & **Equipment Used** \\ \hline Middle Back & Seated cable rows & Seated & Both & Cable machine \\  & One-Arm dumbbell row & Bent over & One- & dumbbell \\  & Wide-Grip pulldown behind the neck & Seated & Both & Cable machine \\  & Bent-over barbell row & Bent over & Both & Barbell \\  & Reverse-grip bent-over row & Bent over & Both & Barbell \\  & Wide-grip front pulldown & Seated & Both & Cable machine \\ \hline Chest & Bench press & On back & Both & Barbell \\  & Inclined dumbbell flyers & Seated, inclined & Both & Dumbbell \\  & Dumbbell press &
\begin{tabular}{l} On back \\ \end{tabular} & Both & Dumbbell \\  & Pushups & Prone with hands and toes grounded & Both & Body weight \\  & Leveraged chest press & Seated & Both & Barbell \\  & Closed-grip barbell bench press & On back & Both & Barbell \\ \hline Triceps & Bar skullcrasher & On back & Both & Barbell \\  & Tricep pushdown & Standing & Both & Cable machine \\  & Bench dip/dip & Seated, inclined & Both & Body weight \\  & Overhead tricep extension & Standing & Both & Barbell \\  & Tricep dumbbell kickback & Bent over & One arm & Dumbbell \\ \hline Biceps & Spider curl & On stomach & Both & Barbell \\  & Dumbbell alternate bicep curl & Standing & Alternate & Dumbbell \\  & Inclined hammer curl & Seated, inclined & Both & Dumbbell \\  & Concentration curl & Seated & One arm & Dumbbell \\  & Cable curl & Standing & Both & Cable machine \\  & Hammer curl & Standing & Alternate & Dumbbell \\ \hline Shoulders & Upright barbell row & Standing & Both & Barbell \\  & Side lateral raise & Standing & Both & Dumbbell \\  & Front dumbbell raise & Standing & Alternate & Dumbbell \\  & Seated dumbbell shoulder press & Seated & Both & Dumbbell \\  & Car drivers & Standing & Both & Barbell plate \\  & Lying rear-delt raise & On stomach & Both & Dumbbell \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Activity list of the Myogym dataset. commonly encountered in exercise programs, aiding in the development and assessment of recognition algorithms.