Table 1.
Number of participants commenting on each theme of mental/physical changes in the questionnaire survey.
| Theme | Sub-theme | Number (and percentage) of participants | |||||
|---|---|---|---|---|---|---|---|
| P1 | P2 | P3 | P4 | P5 | P1-P5 | ||
| Mental symptoms | Negative feelings | 20 (52.6) | 23 (60.5) | 10 (26.3) | 7 (18.4) | 3 (7.9) | 32 (84.2) |
| Cognitive problems | 0 (0.0) | 0 (0.0) | 5 (13.2) | 0 (0.0) | 1 (2.6) | 6 (15.8) | |
| Total | 20 (52.6) | 23 (60.5) | 14 (36.8) | 7 (18.4) | 4 (10.5) | 33 (86.8) | |
| Physiological symptoms | Increased heart rate | 0 (0.0) | 13 (34.2) | 6 (15.8) | 1 (2.6) | 0 (0.0) | 16 (42.1) |
| Perspiration | 0 (0.0) | 5 (13.2) | 2 (5.3) | 0 (0.0) | 0 (0.0) | 7 (18.4) | |
| Cold hands | 0 (0.0) | 3 (7.9) | 1 (2.6) | 0 (0.0) | 0 (0.0) | 4 (10.5) | |
| Gastrointestinal disturbances | 1 (2.6) | 3 (7.9) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 4 (10.5) | |
| Sleep disturbances | 1 (2.6) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (2.6) | |
| Hot flash | 0 (0.0) | 0 (0.0) | 1 (2.6) | 0 (0.0) | 0 (0.0) | 1 (2.6) | |
| Total | 2 (5.3) | 17 (44.7) | 9 (23.7) | 1 (2.6) | 0 (0.0) | 21 (55.3) | |
| Behavioral symptoms | Tremor | 0 (0.0) | 3 (7.9) | 10 (26.3) | 3 (7.9) | 0 (0.0) | 13 (34.2) |
| Muscle stiffness | 1 (2.6) | 1 (2.6) | 5 (13.2) | 0 (0.0) | 0 (0.0) | 6 (15.8) | |
| Impairment of performance quality | 1 (2.6) | 0 (0.0) | 3 (7.9) | 0 (0.0) | 0 (0.0) | 4 (10.5) | |
| Overtraining | 2 (5.3) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (2.6) | 3 (7.9) | |
| Floating feeling | 0 (0.0) | 0 (0.0) | 1 (2.6) | 1 (2.6) | 0 (0.0) | 1 (2.6) | |
| Total | 4 (10.5) | 3 (7.9) | 17 (44.7) | 4 (10.5) | 1 (2.6) | 22 (57.9) | |
| Positive states/changes | Positive feelings | 3 (7.9) | 2 (5.3) | 4 (10.5) | 21 (55.3) | 9 (23.7) | 24 (63.2) |
| Disappearance of MPA symptoms | 0 (0.0) | 0 (0.0) | 4 (10.5) | 3 (7.9) | 0 (0.0) | 7 (18.4) | |
| Improvement of concentration | 0 (0.0) | 0 (0.0) | 3 (7.9) | 0 (0.0) | 0 (0.0) | 3 (7.9) | |
| Positive behaviors | 1 (2.6) | 0 (0.0) | 2 (5.3) | 0 (0.0) | 0 (0.0) | 3 (7.9) | |
| Total | 4 (10.5) | 2 (5.3) | 11 (28.9) | 23 (60.5) | 9 (23.7) | 28 (73.7) | |
The values in parentheses show the percentages of participants within the present sample. The bold “Total” values indicate the numbers (and percentages) of participants commenting on at least one of the sub-themes for each theme. The bold “P1-P5” values indicate the numbers (and percentages) of participants commenting for at least one of the time periods. P1, time period 1 (from the beginning of the preparation for a public performance until the day before the performance); P2, time period 2 (from the morning of the performance day until shortly before going onstage); P3, time period 3 (during the public performance); P4, time period 4 (from shortly after going offstage until the end of the performance day); P5, time period 5 (from the next day of the performance until shortly before the next public performance).