Unanswered Questions

343 questions with no upvoted or accepted answers
17
votes
2answers
1k views

Firstbeat Energy Expenditure Algorithm

I am looking for an implementation (or a document that describes the actual algorithm) for the energy expenditure/VO2/EPOC calculation from the heart rate variability. A few white papers about ...
16
votes
0answers
355 views

Losing Lean Muscle Mass (Detraining)

I have never fully understood how this exactly works. These questions pertain to the long term effects of strength training only. Basic Physiology of Hypertrophy (what is understood) During muscle ...
5
votes
0answers
57 views

Weekly distance buildup for 100k ultra

I'm going to run a 100k next July. I'm trying to plan my weekly mileage, and I'm wondering what periodisation I should do. I'm currently thinking of going for a monthly basis. Increase in week 1 &...
5
votes
1answer
122 views

How to train with no offseason

I was looking at various training plans on the net, as I'm working up a routine for coaching a new team sparring group for our martial arts "circuit", and one thing struck me. All of the plans that I ...
4
votes
0answers
50 views

The science behind the distribution of muscle mass, and how the body decides where to build or breakdown muscle

May I know if there have been journal article reviews or studies that deal with how the body decides where to build or breakdown muscle first, and the metabolic/endocrinal/molecular mechanisms behind ...
4
votes
1answer
106 views

Walking with incremental weights?

What effects can be expected from daily morning walks with incremental weights, like adding 1 kg every 5 days? Starting off with 25 kg or ~55 lb. At some point, after like 4 months, I'll be walking ...
4
votes
2answers
86 views

How do I learn to control and improve awareness of my core?

I’ve been trying to regain awareness and control over my core since cancer treatment 4 years ago that involved several abdominal/pelvic surgeries. I’m struggling with basic core exercises like Pelvic ...
4
votes
0answers
78 views

How do you (gently) strengthen the tops of the feet for poses like Urdhva Mukha Svanasana?

I've been doing yoga for several years now, and I still can't really tolerate the pressure or pain that comes with going to the tops of the feet in this pose, such that I stay on my toes instead. For ...
4
votes
0answers
53 views

What type of shoes are comfortable as well as don't break as easily for breakdance?

When I do flares or footwork with a new shoe it only takes a couple of practices for it to start getting torn in these locations. What are some shoe types that are built for breakdance? Shoes that I ...
4
votes
0answers
55 views

Can repeated hyperventilation change the setpoint for oxygen sensitivity?

In recent years, breath-hold diving as a competitive sport has developed tremendously. I'm interested in generally understanding the consequences of training for maximum breath hold times on a person'...
4
votes
1answer
103 views

Does training for running and swimming simultaneously give better combined effect?

I am now training for marathon running and marathon swimming simultaneously for coming races in both sports. Will this be likely to give me better or worse performance than if I only do a single ...
4
votes
1answer
103 views

How to execute heavy glute bridges and hip thrusts with resistance bands?

I am trying to figure out how can I do heavy glute bridges with resistance bands safely. The reason I use resistance bands is it is portable and fit my current lifestyle. My current glute bridge is ...
4
votes
1answer
212 views

Can I increase flexibility by strengthening muscles?

I do not believe in static stretching. In one of Pavels books he mentions that while most people can not perform a full split, they can still bend one leg 90 degrees sideways. In another question: ...
4
votes
1answer
90 views

Strengthening rotator cuffs - other muscles taking over?

I try to strengthen my rotator cuff muscles in order to prevent injuries when lifting weights. I do some internal as well as external rotation movements with an elastic band before my actual workout. ...
4
votes
1answer
105 views

Is there concrete evidence that running during our first few decades helps with longevity beyond age 90?

I love running. I run regularly and competitively. In my early years, teachers and family told me it was the best thing I could do if I want to live long (together with good diet). But more and more ...

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