Soldiers have been doing it for decades.
I will give you an example. Carry a 50 lb backpack uphill at a run. Soldiers do that regularly - see the speed marching training the British marines did during WWII in the documentary "The Greatest Raid of All".
But you probably are not a soldier.
But that doesn't mean you can't use similar training exercises to give yourself more speed and strength.
That is the whole purpose of Power Training - to quickly get from one place to another, often while carrying, pushing, pulling a lot of weight with you. Or sometimes not even weight, but using something to make it harder resistance wise.
But it is a really good workout because you are pushing your muscles harder than you normally would while cycling - unless you are fan of cycling uphill, in which case keep doing that!
The kind of people who take part in Strongman Competitions also love Power Training. You know who I mean, the type of people who can pull a truck down the street, do an obstacle course while carrying 300 lbs on their back, that sort of thing.
Like in the video below of a Syrian man pulling a train.
But feats of superhuman strength aren't for everyone.
But that doesn't mean you can't use Power Training techniques to give yourself more strength and speed.
THE BENEFITS OF POWER TRAINING
Power training exercises often use either the full body, or one limb at a time (unilateral training) to accomplish amazing results. This technique reduces muscular imbalance and is more functional for everyday life. Isolation exercises (like the bicep curl) take a lot of time, and will only focus on one muscle - and achieves very little results that can be measured on real world impact in your daily routine. An exercise like the bench press, using two arms at a time (bilateral training) will always tend to be lifted more with the stronger side and thus a person who trains that way will never balance out the strength in both limbs.
Power training improves athletic performance. Everything from running, dancing, sports and competitive weightlifting.
Increases strength and builds muscle rapidly.
Many power exercises have a cardiovascular benefit and double as cardio exercises.
Improves reaction time, speed, co-ordination and agility.
Strengthens bones, joints and connective tissue.
THREE EXAMPLES OF POWER TRAINING
Do each exercise explosively. In theory any exercise can be turned into power training by doing as much weight as you can as fast as you can. Even exercises void of weights can benefit from this, such as "explosively fast jumping jacks".
1. Olympic Style Lifts
Olympic lifts may seem intimidating at first but they're some of the most effective weight lifting exercises because they tend to work everything, including the core. Deadlifts, clean and press, Good mornings, and snatch pulls are exercises you may want to check out to have an effective power training program. Work on your form first and then learn how to do them explosively.
Push ups, squats and lunges are common plyometric exercises where the exerciser "springs" up out of the form, so just do them super fast instead. You may have witnessed someone doing push ups and clapping in between each one. The hands leaving the ground makes the push up a plyometric exercise.
3. Compound One-Arm Exercises
Squat down, pick one dumbbell up from off the floor, and come back out of the squat while performing a front raise of the dumbbell to your shoulder. This exercise trains the lower body, shoulders, core, and by doing it all quickly, training for power. It's also challenging enough that you know you are getting a great workout.