Force, energy, work, power. Basal metabolism. Significance of physical activity and exercise on musculo-sceletal, cardiovascular, respiratory, hormonal, immune, hematologic, neurosensory and gastrointestinal systems. Energy sources for muscle contraction. Aerobic and anaerobic energy sources for muscle contraction. Aerobic and anaerobic metabolism. Muscles – force generation and movement. Aspects of mathematical muscle modelling. Muscle fatigue, changes in metabolic parameters. Metabolic adaptations to training. Developing a training plan, exercises analysis and design. Evaluation of movement during exercise based on kinematic and kinetic parameters and electromyographic activity - instrumentation and methods. Movement analysis sensors - goniometers i inertial sensors (accelerometers, gyroscopes). Analysis of ECG, HRV and pulse oximetry signals acquired during physical activity.