Warm Up Routines
Why Warm Up?
A warm up is one of the most effective single actions an athlete can take to reduce their injury risk. Both the key components and the physiological and psychological benefits are examinable — and you are expected to apply both to specific sporting scenarios. Failing to warm up is not a neutral act: it measurably increases injury risk by leaving muscles cold, joints stiff and the mind unprepared for the demands of competition.
Phase 1: Pulse Raising
The first component is pulse raising — low-to-moderate intensity continuous activity that gradually elevates heart rate, breathing rate and core body temperature. Examples include jogging around the pitch, light cycling or steady swimming. The purpose is to increase blood flow and oxygen delivery to the working muscles before the intensity of the session increases. Starting sport at a resting heart rate without a pulse raiser leaves muscles starved of the oxygen and blood flow needed for efficient contraction, dramatically increasing the risk of muscle strains. Duration is typically 5 to 10 minutes.
Phase 2: Mobility
Mobility exercises are controlled, rhythmic movements that take joints through their full range of motion — for example, arm circles, hip rotations and ankle rolls. They differ from stretching in that mobility work focuses on joint movement rather than muscle lengthening. Following the pulse raiser, mobility work reduces joint stiffness and increases the production of synovial fluid, which lubricates the joint surfaces and reduces the friction that could otherwise contribute to cartilage wear. For a basketball player, mobility work targeting the shoulder, hip and ankle joints is particularly important before the explosive jumping, pivoting and shooting demands of the game.
The four key components of a warm up are: (1) pulse raising, (2) mobility, (3) dynamic stretching, and (4) skill rehearsal phase. They are performed in this order — from low intensity to sport-specific activity.
Phase 3: Dynamic Stretching
Dynamic stretching involves moving through a full range of motion in a controlled way — leg swings, walking lunges, arm swings and high knees are all examples. Unlike static stretching (which is held in a fixed position and is reserved for the cool down), dynamic stretching during the warm up maintains the elevated muscle temperature achieved during pulse raising while progressively lengthening the muscles. Research shows that static stretching before sport can temporarily reduce muscle power output — this is why dynamic stretching has replaced it as the warm-up standard. Dynamic stretching directly increases muscle flexibility and pliability of ligaments and tendons, reducing the chance of strains and sprains during the main activity.
Phase 4: Skill Rehearsal Phase
The final component is the skill rehearsal phase, which bridges the general preparation of the earlier components with the specific demands of the sport. A netball player might practise passing drills, receiving and shooting; a sprinter might perform acceleration runs at 70%, 80% and then 95% of maximum effort. The skill rehearsal phase also activates the neuromuscular pathways — the communication between the brain and the muscles — so that movement patterns are crisp and reactive when the game begins. Crucially, it links directly to the psychological benefits of a warm up: practising skills in a controlled environment before competition increases confidence and concentration.
The six physiological benefits of a warm up are: increase in muscle temperature, increase in heart rate, increase in flexibility of muscles and joints, increase in pliability of ligaments and tendons, increase in blood flow and oxygen to muscles, and increase in the speed of muscle contraction.
Five psychological benefits are identified: the ability to heighten or control arousal levels; improved concentration and focus; increased motivation; increased confidence; and mental rehearsal. The skill rehearsal phase is the component most directly responsible for these psychological gains — practising skills successfully at the end of a warm up builds confidence and sharpens focus. Controlling arousal is particularly important: a nervous performer can use the warm up to regulate their activation level, using techniques such as controlled breathing or imagery to arrive at the optimum psychological state for performance. These benefits directly reduce injury risk by ensuring the athlete is mentally focused rather than anxious or distracted when the main activity begins.
It is important to be aware of the negative effects of not warming up. Physiologically: muscles remain cold and less elastic, dramatically increasing the risk of strains; ligaments and tendons are less pliable, raising sprain risk; heart rate and blood pressure rise too rapidly at the start of strenuous exercise, placing cardiovascular stress on the body; and the speed of muscle contraction remains low, reducing reaction time and power. Psychologically: without the skill rehearsal phase, confidence and concentration are lower; arousal may be poorly calibrated — too high (anxiety) or too low (under-arousal) — leading to reckless or sluggish movement. In exam scenarios, describing these "negative effects" is the exact mirror image of the benefits — so learning both together is highly efficient revision.