You will be shown the abstract of a medical clinical trial report. Your task is to extract all the findings from this report into a JSON array. Each finding should contain the following five elements:

- Intervention: The medical intervention being tested. This should be a text span copied from the input passage.
- Comparator: The baseline against which the intervention is being evaluated. This should be a text span copied from the input passage. If no comparator is reported, set to `null`.
- Outcome: The medical outcome whose effect is being measured. This should be a text span copied from the input passage.
- Effect: The effect of the intervention on the outcome, relative to the comparator. The effect should be one of the following three values: ("significantly increased", "significantly decreased", "no significant difference").
- Evidence: The evidence for the effect. This should be a text span copied from the input passage.

Please format your output as a JSON array. Each entry in the output should be an array containing the 5 elements listed above, in the following order: [<intervention>, <comparator>, <outcome>, <effect>, <evidence>].

For example, an output with two findings might read:
```
[["aspirin", "placebo", "headache severity", "significantly decreased", "Mean headache severity was significantly decreased in the aspirin group compared to the placebo group (p < 0.05)."], ["aspirin", "placebo", "weight loss", "no significant difference", "We did not observe any difference in weight loss between the group given aspirin relative to the control group"]]
```

There are 4 finding(s) in the abstract below. Please extract them. Output only the JSON array with these 4 findings. Do not include any additional text.

Abstract:
ABSTRACT: To compare energy expenditure during and after active and handheld video game drumming compared to walking and sitting. Ten experienced, college-aged men performed four protocols (one per week): no-exercise seated control (CTRL), virtual drumming on a handheld gaming device (HANDHELD), active drumming on drum pads (DRUM), and walking on a treadmill at ~30% of VO2max (WALK). Protocols were performed after an overnight fast, and expired air was collected continuously during (30min) and after (30min) exercise. DRUM and HANDHELD song lists, day of the week, and time of day were identical for each participant. Significant differences (p < 0.05) among the average rates of energy expenditure (kcal·min−1) during activity included WALK > DRUM > HANDHELD. No significant differences in the rates of energy expenditure among groups during recovery were observed. Total energy expenditure was significantly greater (p < 0.05) during WALK (149.5 ± 30.6 kcal) compared to DRUM (118.7 ± 18.8 kcal) and HANDHELD (44.9±11.6 kcal), and greater during DRUM compared to HANDHELD. Total energy expenditure was not significantly different between HANDHELD (44.9 ± 11.6 kcal) and CTRL (38.2 ± 6.0 kcal). Active video game drumming at expert-level significantly increased energy expenditure compared to handheld, but it hardly met moderate-intensity activity standards, and energy expenditure was greatest during walking. Energy expenditure with handheld video game drumming was not different from no-exercise control. Thus, traditional aerobic exercise remains at the forefront for achieving the minimum amount and intensity of physical activity for health, individuals desiring to use video games for achieving weekly physical activity recommendations should choose games that require significant involvement of lower-body musculature, and time spent playing sedentary games should be a limited part of an active lifestyle.

Findings:
[["Walking", "Drumming on drum pads", "Total energy expenditure", "significantly increased", "Total energy expenditure was significantly greater (p \u003c 0.05) during WALK (149.5 \u00b1 30.6 kcal) compared to DRUM (118.7 \u00b1 18.8 kcal) and HANDHELD (44.9\u00b111.6 kcal), and greater during DRUM compared to HANDHELD."], ["Walking", "Virtual drumming", "Total energy expenditure", "significantly increased", "Total energy expenditure was significantly greater (p \u003c 0.05) during WALK (149.5 \u00b1 30.6 kcal) compared to DRUM (118.7 \u00b1 18.8 kcal) and HANDHELD (44.9\u00b111.6 kcal), and greater during DRUM compared to HANDHELD."], ["Drumming on drum pads", "Virtual drumming ", "Total energy expenditure", "significantly increased", "Total energy expenditure was significantly greater (p \u003c 0.05) during WALK (149.5 \u00b1 30.6 kcal) compared to DRUM (118.7 \u00b1 18.8 kcal) and HANDHELD (44.9\u00b111.6 kcal), and greater during DRUM compared to HANDHELD."], ["Virtual drumming ", "Control", "Total energy expenditure", "no significant difference", "Total energy expenditure was not significantly different between HANDHELD (44.9 \u00b1 11.6 kcal) and CTRL (38.2 \u00b1 6.0 kcal)."]]