Walking - Science topic

I'm developing a CNN regression model for gait analysis. It seems the model is well trained, with low val_loss and low loss. However, the model does not work well to predict real data. In this training process, the data used is gait data generated from the force plate and plantar pressure. The force plate consists of 6 values, and the plantar pressure consists of 89 values. Then, for data collection, plantar pressure will be placed above the force plate, and someone will walk on the plantar pressure and the force plate at the same time. The data generated from both is 50 data in 1 second. The duration of the experiment that I did was 5 minutes, so the total of the training data is 15000. The main thing is that I'm developing a regression model to predict force plates based on plantar pressure. As I said above, the model is well-trained, but the model cannot work properly for real data during testing. The following is the result of process training and testing using real data. I'm confused why this can happen, even though the training results are quite good and the resulting val_loss and loss results are also very small. then because of this problem, I found a solution by adding the number of sequences to the plantar pressure data. because plantar pressure is able to generate 50 data in 1 second, so here I will add a number of sequences 1–50 at the first index for each plantar pressure data. so the plantar pressure data which originally consisted of 89 values, now will be 90 values because I added 1 data (data number of sequence). Below is an illustration of adding the number of sequences to plantar pressure data. The training process from adding the number of sequences in the plantar pressure data will be very helpful in the training and testing using real data. this is very weird to me, why when I don't add the number of sequences to the plantar pressure data the results of training results will be good but when I test the model using real data, the model is unable to predict real data. however, if I add a number of sequences to the plantar pressure data, the training results will be better than without adding a number of sequences and during testing, the model is able to predict real data quite well. I've read a lot of papers and looking for information on things like this but I can't find it. I hope someone here can provide a logical reason why all this could happen. you can refer to my questions on datascience.stackexchange to see the detail of my questions. https://datascience.stackexchange.com/questions/118724/cnn-model-well-trained-but-cant-predict-real-data

This is the acceptance timeline of an article in the journal "Viruses" by mdpi.

Received: 27 October 2022/ Revised: 9 November 2022/ Accepted: 10 November 2022/ Published: 12 November 2022

Is this normal behavior?

This is not just one article. Almost all articles in all their journals have similar tracks.

Is PLOS ONE walking on the same path?

Not Available

Hi everyone. I have designed a study with three separate steps. First I scan healthy people who passively receive rhythmic and non-rhythmic sequences in auditory and vibrotactile modalities. So two modalities and two conditions in each modality (4 conditions in total). Then I scan people with Parkinson's disease (PwP) who receive the same stimuli. Then I calculate the functional connectivity (using the Psychophysiological Interaction (PPI) method) during rhythmic tasks in each modality separately in both groups of people to see in which ways healthy and PwP people's FC might be different. After that same Parkinson's people get a rehabilitation method for their walking performance and the results of gait (walking) improvements will be correlated with FC values to see if the degree of FC can predict gait improvement following that specific rehabilitation method.

Now my question is:

1- How many people would be considered a good sample size for my study?

2- Is it preferable to have the same sample size in both healthy and PwP? if yes, why?

There are no significant differences when we close our eyes for "a moment" when we walk and compare with open eyes. Sometimes we feel our eyes tired after reading for a long time. So when there are no significant differences when we close eyes and open eyes when walking, can we use "change blindness phenomenon" to walk with close eyes and only open our eyes when we feel it necessary according to our intuition acuity ?

I am attempting to perform electrophysiology recordings from electrodes implanted in the brain of a rat while he is walking on a treadmill. Currently the noise level is extremely high (Strongest at 60Hz and 120Hz, but enough across the spectrum to be unfilterable) when the motor on the treadmill is in operation, even when the rat is ~5m away. I have tried grounding the metal body of the treadmill, but without much benefit. The recording system is a Plexon Omniplex system. Is this typical for treadmill recordings, and what is the typical approach at reducing this noise?

The total walking ground reaction forces (GRF) are measured using a single force plate. For inverse dynamics, GRF is required for each foot separately. Is there any method to do it?

I'm interviewing for a job and am not really sure how this works. Confidentiality, secure location, and other things are such that a rep can't exactly just walk into a i.e. a J&J facility and ask to speak to someone.

So if your group was wanting to start or grow their existing mAb bioprocess workflow, do the reps hear about it somehow and reach out to you or do you handle all the initial contact?

I am pursuing Ph.D. on anthropogenic impact on fluvial environment. This is my last year my work is almost complete. Can anyone walk me through the process of pursuing PDF in India or preferably abroad? I have one international publication in springer on water quality and two other are in the pipeline on river migration process and anthropogenic impact on rivers.

Generally humans have a better developed posture and movement when walking/standing than most land animals.In observation,Auditory nerve especially vestibular nerve system is more evolved in humans than animals.Is there any scientific studies to support this evolvement of function of balance in humans?

Parkinson Disease (PD) is a degenerative disease that affects motor function and sequential.

At which level of H&Y stages will this improve?

Short term or long term effect?

Any evidence to help patient and client?

I was reading a quote of Plato where he said that those who tell stories, rule society. I have seen in my life also, many great and legendary teachers having this unique ability of being a fantastic story-teller. Great performers who rise up to the level of a teacher in other walks of life like spirituality, politics, entertainment, public relations, business etc. also seem to have this unique feature. So I have started believing that story-tellers can become great teachers.

Scientists and researchers from around the world are requested to share their opinions regarding this.

Greetings all,

I did a simple experiment. On each trial, participants listened to audio recordings of a person walking on a flight of stairs. The pedestrian was walking either up or down the stairs, and either toward or away from the recording device. On each trial, the participant had to report whether (1) the pedestrian was walking up or down the stairs, and (2) toward or away from the recording device. Participant sex was a between-participants variable. One reviewer of the paper suggested I conduct a 2 (Sex: M vs. F) x 2 (Distance: Toward vs. Away) x 2 (Elevation: Up vs. Down) repeated measures ANOVA. The DV was percent correct.

The independent variables are not nested. For example, on half the trials, the person walking Up the stairs was walking Toward the recording device while on the other half of the trials the person was walking Away from it.

My concern is that the ANOVA will include data it should not when calculating the main effects. When determining the main effect of Distance, the ANOVA will include the Elevation data. Likewise, when determining the main effect of Elevation, the ANOVA will include the Distance data.

I have attached the data so you will have a better understanding of what I mean.

In short, my question is this: Is a 2 x 2 x 2 the correct analysis that will yield what the reviewer expects? I am thinking it will not.

Thank you for your help!

I am looking for walking data for normal person walking on treadmill. The data of interest are leg joints; hip, knee and ankle joints angle/position data with time taken over a complete cycle or 100% gait cycle for several cycles. Thank you.

Hello RG,

I want to start my research in humanoid robots walking properly. Is there any cheap humanoid robot platform that I could use for research? I heard about the UBTech robot, what do you guys think? do not say NAO Robot/Robotis OP2 or 3, they are out of my budget. Thank you

In my Project Design of Humanoid Robot I would like to simulate human walk. I am familiar with ADAMS but recently came across other softwares like V-Rep and Gazebo.

Could anybody tell me if there is any specific advantage of using ADAMS over V-Rep/Gazebo?

Thank You.

I need to calculate fold change (and LFC but I know how to do that) manually (in excel) using normalized alignment counts from Partek Flow. I don't want to use DESeq2 or another DEG application. I want to understand the math. I may be a bit masochistic, but can anyone walk me through it?

Thanks much,

Dani

I am studying walking behavior by agent based modeling. Do you see proper Anylogic software on it? Or another software?

Also, do you know any sample in which analyzed walking behavior by Anylogic?

Your exercise time can be divided into three sections, starting in the first five minutes with warm-up exercise until your body muscles are activated, and then you start walking at relatively fast steps. In the last five minutes, walking should be slow to restore your heartbeat to normal.

Hallo everyone.

The COVID-19 pandemic has made it mandatory to use technology in class. Learners are no longer restricted to the traditional LMS...but we have moved to video conferencing and introduced a lot of social media to the classroom.

I have an interest in this field in Higher education and would like to do a comparative study of private and public universities.

Any one interested in walking this journey with me?

Traditional way people walk into jewellery shop or bank to buy physical gold. Most people Buy or Sell gold for emergency purpose or during a wedding ceremony. How to transform their behaviour to digital investment in the gold platform using mobile phone in a secure way and guide them to invest digital rather than traditional ways to own gold without keeping a physical.

Any scale or test to measure toe walking in autism

Sample size calculation for a study is an important step. Please explain stepwise how this is to be done.

Has anyone implemented or researched neighborhood walking programs for older adults?

Although there is an excellent quantity of literature on sustainable development and walkability in urban areas, the discussion on urban morphology and the strategies to integrate the principles into the climate-resilient process is still little. As a certain consequence of a climate-responsive urban area, we can expect more people to walk comfortably. There are various strategies to evaluate walkability in urban areas, including the Space Syntax method. Are there any algorithm in Grasshopper to evaluate the three main component os walkability (Permeability, Catchment, and Integration)?

I have some gait profiles collected. in some cases i observe peak stance angles about 20 degrees and peak swing angles about 60 degrees.

But in some cases, there is little to no stance phase flexion angles, but the swing phase 60 degree remains.

I have trouble understanding if this is an error in the data or is it due to varying walking styles ?

I'm looking to do some IHC/IF staining of X. laevis brains that have been frozen in OCT media for cryosectioning. I understand how to do the cryosectioning, but I am hoping for help/protocols that will assist with the following steps:

- Preparation of Chrom Alum Gelatin-coated slides

(I've had issues with my tissues adhering to the slides before, so my PI suggested this step)

- Antigen retrieval

(Is this step necessary? I'm working with brains that have been fixed in MEMFA (formaldehyde), so I'm not sure if the protocol will require this or how to do it.)

- Immunofluorescence staining of sections once they're on the slides

(Could someone walk me through the best way to add your antibody solutions to the slides without damaging the tissues? Do you prefer a bath that you dip slides into, or do you use a hydrophobic pen to create a barrier and keep the slides in a humidified chamber?)

(I've heard of this before, but I'm not sure exactly how to do it, so I would love any tips/visuals/advice anyone might have!)

Thanks so much!

I have used Vicon Nexus 2 for a walking trials with the lower body plug in gait model. However, the ASCII data exported has a column title Rknee angles and contains angles in X Y Z columns. Is there a way to directly output flexion/adduction/rotation angles instead ? Or am i missing something in the understanding of these XYZ outputs ?

(to better compare subject with each other ...)

Hello.

This study had problems in randomization process. Yet, it has added in several MA of RCTs.

Discussing with several researchers, I always heard different opinions about its inclusion or not.

In case it wouldn't affect I2 or the effect size, would you include it in a MA of RCTs?

" At first, we intended to divide participants randomly into 3 groups, each with 20 men and 62 women: no walking training, moderate-intensity continuous walking training, and high-intensity interval walking training. However, a few of the participants were married couples and wanted to join the same group, and others, who lived a distance from an administrative center, wished to be assigned to the interval walking group so that they could visit a local community office nearer their homes."

The world has been locked in fear a long time. Does this demonstrate we have forgotten how to die and that even letting go of our elderly is too hard a task? Should we accept nature's desire for species balance and order?

The effect on our societies may be irreparable. Is it time to walk out against the numerous demons that beset us?

Dear Colleagues,

Hope to be in high spirit and healthy situation

We have estimate a model to examine the effective built environment variables on walking trip generation in Stata.

Regarding different commands to calculate the elasticity in the software, I am not sure about my calculation.

I wonder if you could introduce any reference or formula to calculate the elasticity of zero-inflated negative binomial model.

In advance, Thanks for your invaluable comments!

A decade ago, at the Fifth Ministerial Conference on Environment and Health in Parma, Italy, Member States of the WHO European Region made a commitment “…to provide each child by 2020 with access to healthy and safe environments and settings of daily life in which they can walk and cycle to kindergartens and schools, and to green spaces in which to play and undertake physical activity”. As we are year 2020 actually, Do you know any country that fully reached such a commitment? What do you think about it?

Wishing good health to all of you.

Zydi

Hello,

Our lab is working on DNA extraction. We are creating new solutions for a new protocol. Unfortunately when our main CTAB (hexadecyltrimethylammonium bromide) stock was stored from last time, someone placed it in our walk in fridge. I understand that it should be stored between 15-30 degrees Celsius. Should we buy new stock, or do you think we could still create new solutions from this stock, and not have it affect our results?

Thanks,

Frank

I have need of coding part of implementation of stick diagram in python. So somebodies guide me from where could i learn it.

I am investigating ways of making sculpture using mid to strong grades of hydraulic lime and volcanic rock dust as the main ingredients to make casts from found shoreline objects. .

Over a period of many years I have grown to love and appreciate the Norfolk coastline and I am planning seven walks along some of its shorelines. The first of which began at Holme-Next-the-Sea in Norfolk, UK, where two bronze age wooden 'Sea Henges' or 'monuments' were were discovered. One of which was contraversially unearthed to be preserved.

My interest in lime for the casting process, stems from its lower Co2 emmiting credentials during its manufature and its durability over time when prepared using similar techniques to making Roman Concrete.

Is there any research that has used this tool to measure the perception of accessibility and walking comfort, and its influence on everyday practices? What is the number of people to interview per street and for how long?

My hypothesis is that diagnosing center of pressure on using pedobariagraphy with a goal of normalizing or optimizing the CoP as a treatment goal will eventually in too many cases, via biomechanical compensations driven up the posture, lead to new complaints n=1.

I am trying to classify certain simple activities (walking, sitting, standing,cycling)using smartphone (Samsung galaxy s6) by modeling them using convnets. What I am confused about is that some research article just uses raw data and in some papers, the acceleration vector is isolated into additional gravity and linear acceleration vectors via low- and highpass-filters. Moreover, if such isolation is really needed then how to use both parts(linear, gravitational) or gravitational part is discarded?

Walking without shoes is a useful habit that "massages" the feet and thus stimulates brain activity and the growth of additional connections between neurons.

Like young children, when barefoot walking and treading the whole foot, with the front of the foot touching the ground last, walking without shoes is also good for adults to "feel" the ground, the ground at their feet, and therefore themselves. Such a gait is not possible when walking in footwear, especially one with high heels, because at each step it first steps on the heel. That is why barefoot walking is recommended to anyone wherever possible.

The benefit of grounding, as we call direct contact with the Earth's surface, is related to the discovery of the health benefits that occur when we are in contact with the Earth's natural electricity. When the body is grounded, electrons move from Earth to the body, and it greatly reduces the impact of harmful electromagnetic fields on the body.

Barefoot walking allows electrons from the Earth's surface to neutralize free radicals in the human body responsible for many diseases. This creates a markedly positive change in the physiology of the human body, harmonizing and stabilizing basic biological rhythms and thus contributes to many health benefits. Here are some of the highlights:

• In particular, it promotes in children:

- the development of the muscles of the feet and lower legs that form the arches of the feet;

- greater dexterity;

- tight muscles on the soles of the soles;

- less deformed fingers;

- greater strength of the flexor muscles;

- greater ability to spread toes;

- greater flexibility of the hamstring muscles.

• Each step is an exercise of observation: warm-cold, soft-firm, dry-moist…

• Enables natural movement or movement, better foot mobility.

• A sense of whole body connection is provided.

• Bare feet on the move get warm faster.

• Returns "freedom" to the feet.

• Feet are healthy .

• At each step, the load on the whole body is much lighter.

• Improves "poor" posture.

• Longer standing is provided.

• No neck and back pain.

• Provides better immunity.

• Has a strong anti-inflammatory effect.

• Provides better sleep by balancing cortisol levels.

• Helps prevent Alzheimer's disease.

The mostly adopted pedestrian or cyclist navigation systems are derived from car navigation systems, where the pedestrian is "a car with no wheels, and two feet instead".

This gives a bias from the start, and short-cuts between buildings are rarely considered. The criteria of relatively cleaner air on a path, or more enjoyable sights which may matter to the pedestrian individual are not taken into account.

The minimal path search assumed as optimal may not be the choice which individuals would make, given the opportunity: using the walk to reinforce fitness and exercise (voluntary stairs climb, etc).

The urban versus natural segments may not be considered either among valid options, one would like to be offered.

What would be your criteria for a pedestrian navigation system?

To be clear, apart from the subways, intersections, stairs, are these special tiles used on long walks on the sidewalks in your city?

I am interested in using the Broad's Cancer Therapeutics Response Portal to see the correlation between the expression of a particular gene of interest and resistance to a few specific drugs. I was wondering if anyone could walk me through how to do this or alternatively direct me to any tutorials on how to use this interface? Thanks in advance!

Why is running in Parkinson's disease both possible and have therapeutic effects in contradistinction to walking?

During test of cycle_gate, we ask people to walk, then they pay attention to it and their way of walking is changed, also darkness can change it too.

but that is question, whether mental illness such as depression change the cycle_gate?that could help us to find therapies for these diseases.

I am looking into using visual occlusion methods for a walking task - what are the recommended styles of occlusion glasses for a relatively dynamic task such as this - and are there any recommended suppliers in the UK?

Thanks

We have measured EMG during walking in two different population, and would like to compare their muscle activity.

While some former studies have used statistical inference (i.e. t-tests for max values), we would like to assess the whole time series. Our aim is to show difference in or near specific events of the gait cycle.

Any advice regarding how to perform a statistical inference for time series? or where should I obtain more information regarding this topic?

Thank you!

Can someone please let me know something about the Chromosome 10q dupliaction. My daughter was just diagnosed with this, she is 2 years old and doesnt walk or talk yet. She continuously has brain attacks while she sleeps. Her eyes are open and she doesnt breath when the attacks happen. Thank you in advance for your respond.

I want an initial direction, like how can I use IMU sensors on knees (e.g upper leg and lower leg ) to estimate body state e.g running, walking, climbing, etc. The basic idea I have is to use 2 IMU sensors on knee position (upper and lower leg) , and to get data or make a data set of it. Then process it using deep learning e.g CNN or ANN etc. But point is..are there data sets available on which I can test CNN etc to see either it works or not. Need guidance about data sets, from where could I get IMU knee based data sets, so that I can focus on my algorithm only.

Would you mind sharing how ideas came like a rush to your consciousness, or maybe not a rush, but slowly percolated into your consciousness as you took a stroll?

I am studying the effects of Habitat (flower diversity) on male/female bee abundance. But I can't really get my head around the statistical approach.

I want to check if there is a difference in abundance of male and female bees, between different habitat types.

Bee male and females are counted in multiple habitats, in three different rounds in the year. For each habitat, an inconsistent amount of transects (samples) (ranging from 10 to 24) are walked and bees are counted.

I thought of using a Generalized Linear Mixed Model for this (because of the repeated survey rounds and possible interaction between males and females), but am not sure how to use it in this case.

Do I need to make a male-female ratio for this analysis? I thought it was better to keep the males and females separated, because then I could test for interaction between them.

What should I do with the different amounts of transects? Can the sample size per habitat be different?

I hope someone can help me out.

Thanks in advance,

Rick

I know only this publication on the topic: Kwok BC, et al. BMC Geriatrics 2013;13:23.

Thanks in advance.

Cheers

Activeness or amount of activeness depends on each and every person. Some may become active by studying or playing or dancing or chatting or walking etc. In this context, How can you make yourself active? What could be the advantage?

Any scientific discussion invited

I’m looking for experts in active transportation (walking/cycling), smart cities to have an interview with them for my PhD research project. I live in Australia but they can be from all around the world

I am planning a study on freezing in patients with Parkinson’s disease. I need basic parameters including and especially time taken to initiate walking.

What is the most affordable way to conduct such gait analysis? Insoles? Affordable gait mats?

Thanks for your response in advance,

Siddharth.

What percentage or how many minutes of a healthy human's day is spent on different biomechanical activities such as sitting, standing, walking, lying and so on?

in case of load analysis

I am looking for a reliable algorithm to detect gait events in patients with moderate to severe gait impairments. Whereas some existing algorithms work satisfactorily in good to moderate walkers (e.g. Zeni-Algorithm for kinematic analysis), they are often prone to errors in patients with more pathological gait patterns. Force/pressure-based methods are considered the gold standard for automated gait detection, however, they are not really feasible during free overground walking.

Hi,

I would like to use pedestrian and bicycle on the same walkway on the simulation model in VISSIM. I have already created a model on VISSIM where I input both pedestrian and bi-cycle as a pedestrian with the default walking behavior. However, the bicycle riders do not show real-world behavior like they do not overtake the pedestrian most of the time, and they move behind the pedestrian. I would like to introduce the real-world experience like bicyclist will wait a few seconds behind the pedestrian, then safely overtake. Also, the pedestrian would move closer to the edge of the sidewalk to give way for the bicyclist.

How may I do that?

The above conclusion comes from examining the Doppler Equation and reformulating it.

The same conclusion comes from following the laws of Nature: nothing remains constant or lasts forever.

I am new to western blotting and am practicing the procedure up till the transfer step (I'm good after that step). After the electrophoresis step I take a look at the total protein on the gel, and the attached image is what I get every time; not many bands, and this weird diffusion of the signal into nothing towards the bottom. I've been walked through a western by a very experienced researcher before and the total protein results were very clean and clear, so I know what is possible with my samples.

Can anyone tell me what I might be doing wrong??

Hi all,

As technology advances researchers are beginning to use virtual reality to assess behaviors that are otherwise difficult to observe or unethical to test in the real world. However, one of the drawbacks of VR is the novel aspect of being in a VR world/headset. This novelty might influence the variables of interest. While obviously nothing will completely get rid of the novelty influence (other than repeated exposure) by allowing participants to experience various VR stimuli before the study began, I suggest we may reduce it. Unfortunately, this may also influence the variable of interest as well. For example, I myself was participating in a study and was fixated on "looking around" the virtual world that I missed some educational information from the narrator (which was part of the outcome variable). Thus I propose two thoughts/questions:

1) Is it worth introducing a low level VR stimuli before the study begins to reduce novelty and thus increase realism, or does this introduce a new confound

2) If it is worth it what type of VR stimuli should be used (e.g. just a simple nature walk or walking around a VR 'home') .

Any discussion/advice would be helpful!

Is it possible to know if a gesture is controled volontarly or automaticaly, or partialy automaticaly? Is there a difference for this assesment between a single gesture and a cyclic activity like walking?

Looking for any papers that look at the use of ellipticals and knee stresses/kinetics alone and/or relative to walking/jogging.

I am looking for an approved cardiac rehabilitation program (walking program) to integrate into my research project.

The mind wanders and the body? Are there activities that are associated to mind wandering?

Here is a potential list.

· Doodling.

· Colouring in.

· Walking and other sports such as running where attention is not the main focus.

· Kicking stones.

· Sky gazing.

· Hair twitching.

· Flying a kite.

I am making a humanoid robot where smooth walking is a challenging work. I have done the basic walking, but I should make it more smoother. Obviously, sensors like Gyroscope and Accelerometer are helpful to perform this task. Which of these sensors should I use?

Is it possible to measure COP of a single leg using a force plate to identify stability during walking.

Hi

I'm conducting an exercise intervention with office workers. The intervention will include Yoga classes and one to one coaching. I will be looking at the effects of the intervention on two dependent variables: 1.walking

2. the amount of time workers spend standing.

I have a control group and a treatment group. Walking data will be measured using pedometers, and standing time will be measured using a self-report questionnaire.

Am I right in thinking that a two-way unrelated ANOVA is needed to test for difference between the groups?

Thanks in advance

We are usually told to take a 15 minutes nap after lunch and a walk after dinner. How long after taking meals one should take a nap or walk? Should we walk briskly or leisurely after meals? Should it be a short walk or a long one? Walk before a meal helps burn more calories or walk after meals? How long should we walk before and after a meal?

Hi everyone

I am working on a 7 segment model of the human body to simulate a walking gait cycle (3 segments for each leg and 1 segment for upper limb).

I have a problem with this model. The order of knee and ankle joints follows the reported orders in standard data (less than 150 N.m in each one of the joints). But the order of Hip joint in each leg is much more than what I have expected. This torque value is about 600-700 N.m.

I wanted to know has anyone faced with the same problem and how should to resolve it?

Regards.

I am seeking advice and resources that can help me educate business professionals in learning how to think using a theoretical lens.

For the summer, I am a extern at a corporation. In our meetings, people make contradicting suggestions and recommendations, but are somehow both accepted. My grad school training in counseling psychology, which is heavy on theory and philosophy, had me scratching my head and wonder why conflicting ideas were both accepted.

I briefly spoke with my supervisor about my observation. I walked her through my thinking and we 'walked out' the two ideas where she clearly saw the disconnect. She passed the results of our discussion along and now I have been asked to give a presentation on this process -- thinking in theoretical terms, understanding one's theoretical lens, and so forth.

Your help would be greatly appreciated.

When doing gait analysis, are there any criteria for a "standard" surface to walk on? In other words, what features from the surface would affect gait, and in what ways? I suspect this might be critical for subjects who already have problems with walking, but am not sure what exactly to look out for. It'll be nice to have some advice from you.Thank you!

Disabled people are considered under WHO recommandations for daily physical activity, but standard measures used for healthy people could them really be used at the same for disabled ?

In other way, for example, for a femoral amputee, walking at 4m/s speed is it under 3 MET (very low level activity) or over (low activity)?

Where I live there is a large park that has a picnic/barbecue facility that can be freely used and is mostly used by people from the local area (upper middle class) living within walking distance of the park. Some users of the facility invariably leave their garbage on or around the picnic table even though there’s a garbage bin right at the facility.