Clinical trials

This study aims to explore, in patients with chronic non-specific low back pain (cnsLBP), the relationships between lumbar muscle activity, structural and morphological characteristics of the paraspinal muscles, and movement strategies, during a functional, ecological task: walking. To do this, we will compare a group of cnsLBP patients with a group of asymptomatic subjects, combining several types of measurements taken at different walking intensities: spinal kinematics (movement strategies), electromyographic activity of the lumbar muscles, and structural parameters of the paraspinal muscles (stiffness and thickness). The objective is twofold: first, to identify any significant differences between cnsLBP patients and healthy subjects on these combined parameters; second, to explore the interactions between these three dimensions (muscle activity, muscle structure, movement strategy) in order to better understand their relationships with pain and with how CNSLBP functions during physical activity. This multidimensional, ecological approach could also help identify subgroups within the cnsLBP population, reflecting the clinical heterogeneity already documented in the literature. Ultimately, the expected results will contribute to a better understanding of the biomechanical and neuromuscular mechanisms involved during physical activity in these patients, and will provide objective elements to help individualize physical activity recommendations according to each patient's profile.

1. OBJECTIVE OF THE STUDY The study consists of evaluating resting energy expenditure (REE) and that induced by adapted physical activity (APA) in cachectic patients, compared with those predicted by equations and those of non-cachectic cancer patients. We will also seek to identify potential compensations in the level of Physical Activity (PA) and dietary intake during one week of the PA programme. 2. CONDUCT OF THE STUDY Taking part in this study will in no way affect your treatment at SPORMED; you will undergo the same assessments and carry out the PAA programme in the same way. As a reminder, your treatment at SPORMED consists of an initial assessment session, a 12-week ABS programme and a final assessment session. If you take part in the EMC2APA study, we will ask you to measure your gas exchange at rest (60 minutes) and during the aerobic part of one of your physical activity sessions. You will perform the effort traditionally targeted during the sessions (constant moderate intensity (60% of your Reserve Heart Rate, equivalent to a perception of the difficulty of the effort of 5-6/10) while your gas exchanges will be measured using a portable, non-invasive measuring device (K5, COSMED®). You will also be fitted with an accelerometric wristwatch. In addition to the gas exchange measurements that will take place in the SPORMED structure, we will ask you to fill in a logbook tracking your daily physical activity and your daily food intake. You will also be asked to wear an accelerometer in a belt attached to your hip for 7 days. Participation in this study is voluntary. There are no restrictions during the protocol.