Higher Muscle Aches Or Cramps Predicts Moderately Lower Excitability for Population
Contents

Variables

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Muscle Aches or Cramps 270
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Excitability 1174

Categories

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Symptoms 13336
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Emotions 2028

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Your Data

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Low Confidence
Moderate Effect Size
Negative Relationship
Population Study
cause image gauge image effect image
Participants reported a 25.4% average decrease in Excitability following above average Muscle Aches Or Cramps.
Abstract

Abstract

Excitability was generally 5% higher than average after an average of 1.92 out of 5 of Muscle Aches Or Cramps over the previous 7 days.

Aggregated data from 1 study participants suggests with a LOW degree of confidence (p=0.0602, 95% CI -0.884 to 0.04) that Muscle Aches Or Cramps has a moderately negative predictive relationship (R=-0.422) with Excitability.

The highest quartile of Excitability measurements were observed following an average 2 out of 5 Muscle Aches Or Cramps.

The lowest quartile of Excitability measurements were observed following an average 2.37 out of 5 of Muscle Aches Or Cramps.

After an onset delay of 0 seconds, Excitability is typically 12% lower than average over the 7 days following around 2.37 out of 5 Muscle Aches Or Cramps.

Objective

Objective

The objective of this study is to determine the nature of the relationship (if any) between Muscle Aches Or Cramps and Excitability. Additionally, we attempt to determine the Muscle Aches Or Cramps values most likely to produce optimal Excitability values.
Participant Instructions

Participant Instructions

Manual Recording Option

A Create a reminder for Muscle Aches or Cramps here and record it daily by enabling notifications or using A the reminder inbox here .


Manual Recording Option

A Create a reminder for Excitability here and record it daily by enabling notifications or using A the reminder inbox here .

Design

Design

This study is based on data donated by 1 participants. Thus, the study design is equivalent to the aggregation of 1 separate n=1 observational natural experiments.

Data Analysis

Data Analysis

Muscle Aches or Cramps Pre-Processing

Muscle Aches or Cramps measurement values below 1 out of 5 were assumed erroneous and removed. Muscle Aches or Cramps measurement values above 5 out of 5 were assumed erroneous and removed. No missing data filling value was defined for Muscle Aches or Cramps so any gaps in data were just not analyzed instead of assuming zero values for those times.

Excitability Pre-Processing

Excitability measurement values below 1 out of 5 were assumed erroneous and removed. Excitability measurement values above 5 out of 5 were assumed erroneous and removed. No missing data filling value was defined for Excitability so any gaps in data were just not analyzed instead of assuming zero values for those times.

Predictive Analytics

It was assumed that 0 seconds would pass before a change in Muscle Aches Or Cramps would produce an observable change in Excitability.

It was assumed that Muscle Aches Or Cramps could produce an observable change in Excitability for as much as 7 days after the stimulus event.

Statistical Significance

Statistical Significance

Using a two-tailed t-test with alpha = 0.05, it was determined that the change in Excitability is statistically significant at 95% confidence interval.

After treatment, a 25.4% decrease (-0.536 out of 5) from the mean baseline 3.28 out of 5 was observed. The relative standard deviation at baseline was 30.6%. The observed change was 0.533185 times the standard deviation.

A common rule of thumb considers a change greater than twice the baseline standard deviation on two separate pre-post experiments may be considered significant. This occurrence would have only a 5% likelihood of resulting from random fluctuation (a p-value < 0.05).

Data Sources

Data Sources

Muscle Aches Or Cramps data was primarily collected using QuantiModo. QuantiModo allows you to easily track mood, symptoms, or any outcome you want to optimize in a fraction of a second. You can also import your data from over 30 other apps and devices. QuantiModo then analyzes your data to identify which hidden factors are most likely to be influencing your mood or symptoms.

Excitability data was primarily collected using QuantiModo. QuantiModo allows you to easily track mood, symptoms, or any outcome you want to optimize in a fraction of a second. You can also import your data from over 30 other apps and devices. QuantiModo then analyzes your data to identify which hidden factors are most likely to be influencing your mood or symptoms.

Limitations

Limitations

As with any human experiment, it was impossible to control for all potentially confounding variables. Correlation does not necessarily imply causation. We can never know for sure if one factor is definitely the cause of an outcome. However, lack of correlation definitely implies the lack of a causal relationship. Hence, we can with great confidence rule out non-existent relationships. For instance, if we discover no relationship between mood and an antidepressant this information is just as or even more valuable than the discovery that there is a relationship.

We can also take advantage of several characteristics of time series data from many subjects to infer the likelihood of a causal relationship if we do find a correlational relationship. The criteria for causation are a group of minimal conditions necessary to provide adequate evidence of a causal relationship between an incidence and a possible consequence.

Criteria For Causal Inference

Strength (A.K.A. Effect Size)

A small association does not mean that there is not a causal effect, though the larger the association, the more likely that it is causal. There is a moderately negative (R = -0.422) relationship between Muscle Aches Or Cramps and Excitability.

Consistency (A.K.A. Reproducibility)

Consistent findings observed by different persons in different places with different samples strengthens the likelihood of an effect. Furthermore, in accordance with the law of large numbers (LLN), the predictive power and accuracy of these results will continually grow over time. 47 paired data points were used in this analysis. Assuming that the relationship is merely coincidental, as the participant independently modifies their Muscle Aches Or Cramps values, the observed strength of the relationship will decline until it is below the threshold of significance. To it another way, in the case that we do find a spurious correlation, suggesting that banana intake improves mood for instance, one will likely increase their banana intake. Due to the fact that this correlation is spurious, it is unlikely that you will see a continued and persistent corresponding increase in mood. So over time, the spurious correlation will naturally dissipate.

Specificity

Causation is likely if a very specific population at a specific site and disease with no other likely explanation. The more specific an association between a factor and an effect is, the bigger the probability of a causal relationship.

Temporality

The effect has to occur after the cause (and if there is an expected delay between the cause and expected effect, then the effect must occur after that delay). The confidence in a causal relationship is bolstered by the fact that time-precedence was taken into account in all calculations.

Biological Gradient

Greater exposure should generally lead to greater incidence of the effect. However, in some cases, the mere presence of the factor can trigger the effect. In other cases, an inverse proportion is observed: greater exposure leads to lower incidence.

Plausibility

A plausible bio-chemical mechanism between cause and effect is critical. This is where human brains excel.

Based on our responses so far,

0 humans feel that there is a plausible mechanism of action for a relationship between Muscle Aches Or Cramps and Excitability.

0 humans feel that any relationship observed between Muscle Aches Or Cramps and Excitability is coincidental.

Coherence

Coherence between epidemiological and laboratory findings increases the likelihood of an effect. It will be very enlightening to aggregate this data with the data from other participants with similar genetic, diseasomic, environmentomic, and demographic profiles.

Experiment

All of human life can be considered a natural experiment. Occasionally, it is possible to appeal to experimental evidence.

Analogy

The effect of similar factors may be considered.

Plausibility

Plausibility

A plausible bio-chemical mechanism between cause and effect is critical. This is where human brains excel. Based on our responses so far, 0 humans feel that there is a plausible mechanism of action and 0 feel that any relationship observed between Muscle Aches Or Cramps and Excitability is coincidental.

Relationship Statistics

Property Value
Cause Variable Name Muscle Aches Or Cramps
Effect Variable Name Excitability
Sinn Predictive Coefficient 0.040158608726661
Confidence Level LOW
Confidence Interval 0.46200880007894
Forward Pearson Predictive Coefficient -0.422
Critical T Value 1.676
Average Muscle Aches Or Cramps Over Previous 7 days Before ABOVE Average Excitability 2 out of 5
Average Muscle Aches Or Cramps Over Previous 7 days Before BELOW Average Excitability 2.37 out of 5
Duration of Action 7 days
Effect Size moderately negative
Number of Paired Measurements 47
Optimal Pearson Product 0.28744480888796
P Value 0.060245331403693
Statistical Significance 0.3392
Strength of Relationship 0.46200880007894
Study Type population
Analysis Performed At 2021-08-30
Number of Participants 1

Muscle Aches or Cramps Info

Property Value
Variable Name Muscle Aches Or Cramps
Aggregation Method MEAN
Analysis Performed At 2020-10-09
Duration of Action 24 hours
Kurtosis 1.8129817669614
Maximum Allowed Value 5 out of 5
Mean 2.2820166666667 out of 5
Median 2.19445 out of 5
Minimum Allowed Value 1 out of 5
Number of Aggregate Predictors 226
Number of Aggregate Outcomes 44
Number of Measurements 146
Number of Measurements (including those generated by tagged, joined, or child variables) 146
Public true
Onset Delay 0 seconds
Standard Deviation 0.3689644014329
Unit 1 to 5 Rating
User Variables 8
UPC 755464575396
Variable Category Symptoms
Variable ID 87478
Variance 0.20563156886686

Excitability Info

Property Value
Variable Name Excitability
Aggregation Method MEAN
Analysis Performed At 2020-10-11
Duration of Action 24 hours
Kurtosis 1.8586419214637
Maximum Allowed Value 5 out of 5
Mean 2.5200098915473 out of 5
Median 2.4911161917098 out of 5
Minimum Allowed Value 1 out of 5
Number of Aggregate Predictors 1051
Number of Aggregate Outcomes 123
Number of Measurements 25877
Number of Measurements (including those generated by tagged, joined, or child variables) 25768
Public true
Onset Delay 0 seconds
Standard Deviation 0.56590124642268
Unit 1 to 5 Rating
User Variables 1587
UPC 0
Variable Category Emotions
Variable ID 1308
Variance 0.64891496461637

Principal Investigator

Cite This Study

APA Format
Sinn, M. P. (2026). Higher Muscle Aches Or Cramps Predicts Moderately Lower Excitability for Population. The Journal of Citizen Science. https://studies.crowdsourcingcures.org/study/cause-87478-effect-1308-population-study
BibTeX
@misc{sinn_cause_87478_effect_1308_population_study_2026,
  author = {Sinn, Mike P.},
  title = {Higher Muscle Aches Or Cramps Predicts Moderately Lower Excitability for Population},
  year = {2026},
  publisher = {The Journal of Citizen Science},
  url = {https://studies.crowdsourcingcures.org/study/cause-87478-effect-1308-population-study},
  note = {Accessed: January 3, 2026}
}
Chicago/Turabian
Sinn, Mike P. "Higher Muscle Aches Or Cramps Predicts Moderately Lower Excitability for Population." The Journal of Citizen Science. Accessed January 3, 2026. https://studies.crowdsourcingcures.org/study/cause-87478-effect-1308-population-study.