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Unanswered Questions

278 questions with no upvoted or accepted answers
16
votes
1answer
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 ...
15
votes
0answers
349 views

“Continuous Passive Motion” (CPM) for Joint Healing, Effective? How?

First of all - I expect this question to get very little attention: It's amazing how little attention people who work out seem to give to joint health. Anyway, it seems that moving the joint "...
14
votes
0answers
220 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 ...
10
votes
1answer
296 views

Does having abnormally low IGF-1 levels affect my ability to gain muscle mass?

I'm a 24 year old male and fairly recently found out that I have abnormally low IGF-1 levels. Mine is 90 (ng/mL) whereas the average range for my age is from 116-353 (ng/mL). I've always been pretty ...
6
votes
3answers
145 views

Unable to use left arm, what exercises should I do?

Due to an injury I have a partial paralysis in my left arm, both shoulder and elbow. This means I cannot do most of the upper body exercises. The only things I can do are single handed (dumbbell/...
6
votes
2answers
343 views

how to keep the chest tendon injury free while training heavy bench press?

Here and here you can see me bench press 200 Kg. I don't bench 200Kg 440 Lbs all year long. After reaching the 200, it goes down gradually back to 160 and then 160 for 2 reps and slowly up. I use ...
5
votes
1answer
40 views

Form/posture/technique for ruck running

I am about to start with ruck running (running with a loaded backpack). All I know about it is to build up the weight very gradually. However, I would like to understand the proper form/posture ...
5
votes
1answer
89 views

post stretching tightness in posterior leg muscles

I'm a 28yo female, very physically active (circus arts, martial arts, cycling, yoga), and have been for my entire life. I have partial hyperflexibility (arms, lower back, toes), and have been working ...
5
votes
1answer
118 views

Asymmetry in cross body shoulder stretch

I have recently noticed that I have a huge asymmetry in the cross body shoulder stretch. In particular, when stretching the left arm, I can push it to be almost parallel, to my body, while with my ...
5
votes
1answer
209 views

Does sitting really reduce ROM?

If I had a dollar for something along the lines of... "lots of sitting every day gives you tight hip flexors and hamstrings/calves...". I am skeptical of that claim. It's plausible, but seems taken ...
4
votes
0answers
74 views

Ultramarathons: would 'racewalking' be faster?

For races which are long enough that the average speed falls below the maximum speed achievable via a 'walking' style of movement, is it more energy efficient to 'walk' at that speed as opposed to ...
4
votes
1answer
144 views

Are there any significant benefits in increasing my exercise frequency from 3 times a week to 5 times a week?

I have a sedentary job. Currently I'm exercising 3 times a week, in the gym: 30~ 35 minutes of intensive cardiovascular exercise, and 25~30 minutes of strength training. Are there any significant ...
4
votes
0answers
59 views

Is low intensity cardio the only way to induce an increase in stroke volume?

For the guys versed in endurance training, it is now clear that low intensity steady state cardio brings one key adaptation that HIIT is not able to : an increase in the heart stroke volume (also ...
4
votes
2answers
124 views

Weight size when training for power (not for maximum strength, resistance or body size)

If our main goal is to increase our power (for kicking or striking a ball, for example), what size of weight would we use? Could light weights used ballistically be better than, say, big weights + ...
4
votes
2answers
81 views

How can I engage my chest more when doing pushups?

I understand that pushups are supposed to be a chest exercise primarily. However, I find that I use my triceps and anterior deltoids more than my chest when doing the exercise. How can I engage my ...

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