Effects of supervised physical exercise on emotions among adult women with a diagnostic of borderline personality disorder: A series of mixed method single-case experimental trials combined with ecological momentary assessment

A remote adapted physical activity intervention for women with breast cancer and severe depressive or anxiety symptoms: series of N-of-1 trials with ecological momentary assessment

“…Single case experimental studies may be subject to rival hypotheses that can explain changes in the dependent variables like maturation, question-behavioral effect, and other external factors (St-Amour et al, 2024). To ensure the internal validity (i.e., the observed change is attributable to the intervention rather than other factors), participants were questioned at the end of phase B about important event having occurred in their life during the phase they just finished that could have a prolonged (positive or negative) impact on their mental health symptoms.…”

“…An appropriate method, such as single case experimental study (or N-of-1) is necessary to examine the evolution of depressive and anxiety symptoms during the intervention (Bentley et al, 2019). N-of-1 has received an increasing interest in oncology (Sequeira et al, 2023), PA (Lapointe et al, 2023), and mental health research (St-Amour et al, 2024). This design consists in collecting data regularly form participants as they progress through different phases of the study, i.e., the first phase measures the baseline of the interest variables and the subsequent phase serve to introduce the intervention.…”

“…In addition, conduction N-of-1 combined with Ecological Momentary Assessment (EMA) is a solid methodological approach to examine the effects of a clinical intervention on depressive and anxiety symptoms at individual level. EMA has been recommended to improve the ecological validity and reduce recall bias (St-Amour et al, 2024).…”