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Which constraint in motor development is functional (செயல்பாட்டு) rather than structural (கட்டமைப்பு)?

Shift in centre-of-mass height from adiposity

Change in femoral torsion angle across growth

Altered tibial length due to maturation

Motivation to persist after failure

Newell’s constraints model partitions control into which triplet?

Organismic/Individual, Task, Environment

Cognitive, Affective, Psychomotor

Growth, Maturation, Aging

Locomotor, Non-locomotor, Manipulative

A 4-year-old improves hopping after practice on compliant mats; primary variable modulated is

Interpersonal relationship cueing

Space/surface affordance within task constraints

Energetic cost via force–time scaling

Body schema (somatognosis)

Which milestone–age pairing is most defensible across cross-sectional norms?

Creeping (hands–knees) at 7–10 months

Independent sitting at 3–4 months

Fine pincer grasp at 4–5 months

Independent walking at 6–8 months

For open skills under variable contexts, which practice schedule maximizes retention/transfer?

Massed practice without rest

Blocked constant-parameter practice

Random practice with variable parameters

Part-practice only on the hardest segment

Stability is maximized when the line of gravity falls

Through a raised centre of mass via overhead load

Well within a deliberately widened base of support

Outside the base of support and close to its anterior boundary

Exactly along the base perimeter

Primary receptors for kinesthetic limb-position sense are

Retinal/extra-retinal visual cues

Vestibular otoliths and canals

Muscle spindles and joint mechanoreceptors

Cochlear hair cells

Bernstein’s initial strategy to solve ‘degrees-of-freedom’ in novices is best summarized as

Global impedance control via co-activation only at expert level

Random exploratory variability without feedback

Freezing joints to simplify control

Freeing joints to exploit emergent synergies

Which movement-class pairing is correct?

Manipulative — Basketball dribble

Locomotor — Axial twist

Manipulative — Static one-leg balance

Non-locomotor — In-step soccer kick

Aging’s dominant neuromuscular change lowering power/RFD is

Type II fiber hypertrophy with increased discharge rate

Only tendon stiffness variability increases

Reduced motor-unit firing rate with type II atrophy

No change in rate of force development

Which teaching cue targets the RELATIONSHIP concept most directly?

Arms long and soft to extend reach

Mirror the partner’s shape at arm’s length

Lower your centre by deeper knee flexion

Use micro-steps to create space

Volleyball rally scoring—most accurate statement is

Libero may legally serve in all six rotations

Either side scores on any rally; set to 25, win by 2

Only the serving side can score a point

Every set is to 21 without deuce

In basketball, the restricted-area arc primarily prevents

A secondary defender drawing a charge under the rim

Any charge call by a primary defender

Reach-in fouls at the perimeter

Bench technicals when coach is inside arc

Football: which restart is INDIRECT?

Offside infringement free kick

Kick-off from centre

Direct free kick for handball

Penalty kick

×100 m relay exchange zone length (current rule) is

30 m including the acceleration zone

10 m acceleration zone only

40 m across two zones

20 m only

Standard 400-m track lane width is approximately

50 m

00 m

0.90 m

22 m

Chess tactic that produces a simultaneous attack on king and rook by a minor piece is

Skewer

Discovered check

Fork

Kabaddi bonus-line award requires

Temporary immunity from a hold

Automatic two points when line is crossed

Calling time-out at the line

One bonus point if one foot crosses with the other in air and defense has ≥6 players

Badminton: shuttle landing on the boundary line is

Out

Fault only if server is at fault

Let—rally replayed

Hockey (FIH): penalty corner is awarded when

Defender deliberately plays ball over back-line

Attacker puts ball out over back-line

Goalkeeper makes a routine save

Any side-line exit occurs

FIBA shot clock after an offensive rebound resets to

14 s

12 s

10 s

24 s

Volleyball substitution mechanic (signal with crossed forearms over chest) is shown by

First referee to indicate time-out

Second referee to indicate substitution

Line judge to indicate touch

Captain to register protest

High jump style minimizing COM height while clearing the bar is

Scissors

Straddle

Fosbury flop

Western roll

Shot-put optimal release angle in elite practice (strength-speed realistic) is

30°

~37–41°

50–55°

45° exactly

Race walking: disqualification criterion is

Three red cards from three different judges

Four reds including chief judge

Two red cards from any judges

One red and one bent-knee caution

m track lane-1 standard curve radius is approximately

30.5 m

36.5 m

38.0 m

32.0 m

Castling long (O-O-O) is legal only when

Rook may have moved earlier once

Checkmate threat automatically forbids it even if path is safe

Squares between king and rook are empty and not attacked; both unmoved

King may castle while in check

En passant capture is legal

Only if a promotion has occurred

Any number of moves after the two-square advance

Only on the immediate next move after the two-square advance

Only in endgames with ≤7 pieces

Men’s javelin implement specifications are

700 g; 2.3–2.5 m

600 g; 2.0–2.2 m

800 g; 2.6–2.7 m

1 kg; 2.2–2.4 m

Fifty-move rule draw is claimed when

Threefold repetition has appeared once

Mate is impossible by any legal sequence

Fifty moves by both sides without pawn move or capture have occurred

Fifty moves after any check have been played

question

In a 16-team single-elimination without play-offs, number of matches required is

Byes for a 10-team knockout to reach the next power of two are

Single-round league (round-robin) with 9 teams has matches

In league tabulation, a 3-1-0 system awards

Win=3, Draw=1 each, Loss=0

Win=4, Draw=1, Loss=0

Win=3, Draw=2 each, Loss=1

Win=2, Draw=1, Loss=0

Knockout seeding primarily serves to

Reward byes to all lower seeds

Reduce the number of matches

Ensure top entrants avoid early clash

Increase home-field advantage

Draw-fixing a league fixture list uses which algorithmic idea to avoid repeats?

Hamiltonian cycle on complete bipartite graph

Round-robin ‘circle method’

Greedy closest-distance algorithm

Random Monte-Carlo only

A national-level athletics meet uses lanes 1–8; for 400-m, advancement ‘fastest-loser’ principle means

Only seeded athletes advance regardless of time

Only heat winners advance

Top two per heat only

Next fastest overall non-automatic qualifiers advance

Purpose of consolation (repêchage) is to

Give a second chance to those beaten by finalists

Award extra medals

Shorten the schedule

Eliminate all losers quickly

In national award pathways, ‘Arjuna Award’ is primarily for

Outstanding performance by sportspersons

Lifetime coaching service

Sports science research

Sports infrastructure creation

Test–Measurement domain: ‘norm-referenced’ interpretation means

Score judged against absolute cut-scores

Score judged against task blueprint only

Score judged relative to population distribution

Score judged by expert panel alone

Reliability coefficient (test–retest) primarily reflects

Content alignment

Concurrent criterion accuracy

Score stability across time

Construct validity

Athletic fitness test ‘construct validity’ is best supported by

Correlation with an unrelated measure

Inter-rater agreement only

High internal consistency of unrelated items

Multiple traits loading on one factor in CFA

Type I error (α) in hypothesis testing is

Power of a test

Accepting a false alternative truthfully

Failing to reject a false null

Rejecting a true null

In physical-fitness evaluation, the most informative ‘central tendency’ for skewed time-to-exhaustion data is

Mode only

Trimmed mean alone

Median with IQR

Mean with SD

For heteroscedastic sprint data, preferred correlation to down-weigh outliers is

Pearson r

Spearman ρ

Eta squared η²

Point-biserial r_pb

% CI for a mean narrows when

Sample SD increases

Sample size increases

Confidence level increases

Population variance increases

In ROC analysis of a field test, ‘AUC=0.90’ indicates

Excellent discrimination

Only calibration accuracy

Poor discrimination

Overfitting by definition

Intra-class correlation (ICC) is chosen over Pearson when

You need absolute agreement across raters/trials

You need only monotonic association

Association between two different constructs is needed

You test independence in contingency tables

A Bland–Altman plot primarily evaluates

Factorial validity

Agreement and bias between methods

Sphericity in repeated measures

Linearity of association

Content validity of a skills battery is maximized by

Only increasing sample size

Blueprinting domain specs with expert review and CVR

Only maximizing Cronbach’s alpha

Using items from previous studies only

Sports-training principle most violated by the same HIIT daily is

Overload

Specificity

Recovery/Restoration

Individualization

Periodization: undulating model differs because it

Holds a mesocycle with constant intensity

Ignores skill practice

Eliminates deloads entirely

Varies intensity/volume across days within a microcycle

Velocity-based training: lifting at 0.15–0.30 m·s⁻¹ targets

Speed-strength zone

Starting strength zone

Maximal strength zone

Strength-speed zone

ACSM endurance prescription for healthy adults—minimal threshold is approximately

Moderate 150 min/wk or vigorous 75 min/wk

Daily continuous 60 min mandatory

VO₂ at 20–30% HRR for 10 min/wk

Only vigorous allowed for effectiveness

Agility change-of-direction depends MOST on

Hip flexibility alone

Max speed only

Arm swing alone

Braking force and re-acceleration mechanics

Learning curve with fast early gains then plateau resembles

Linear growth

Negative acceleration (decelerating) curve

Positive acceleration curve

Sigmoid with late surge only

Distributed practice aids retention because it

Needs identical environmental contexts

Reduces total practice time drastically

Eliminates fatigue altogether

Increases contextual interference and consolidation via spacing

Complex skill acquisition is facilitated by

Whole–part–whole sequencing with variable practice

Only mental rehearsal without physical trials

Random rule changes every trial

Segregating parts permanently

Overreaching vs overtraining is distinguished by

High CK levels alone

Short-term performance drop with quick rebound vs long-term maladaptation

Absolute HRmax reduction only

Presence of any fatigue

Warm-up potentiation using heavy back-squat before jumps is

Incompatible with power tasks

SAID violation

Post-activation potentiation (PAP) with fatigue management

Only glycogen supercompensation

question

m race predominant energy provision — 400 மீ ஓட்டத்தில் ஆற்றல் அமைப்பு ஆதிக்கம்

Gluconeogenesis during event — நிகழ்வில் கிளுகோனியோஜெனசிஸ்

Fast glycolysis with aerobic tail — வேக கைகோலிசிஸ் + ஏரோபிக் வால்

Oxidative only — முழு ஏரோபிக்

Phosphagen almost exclusively — ஃபாஸ்பஜன் மட்டும்

Lactate threshold (OBLA ≈4 mmol·L⁻¹) in trained endurance occurs near — பயிற்சி பெற்றவர்களில் OBLA

~60% VO₂max

~100% VO₂max

~75% VO₂max

~85–90% VO₂max

Endurance exercise–induced mitochondrial biogenesis key regulator — மைடோகாண்டிரிய உருவாக்க கட்டுப்படுத்தி

Myostatin up-regulation

Leptin receptor signaling

PGC-1α coactivator pathway

LDL receptor activation

Cardiovascular adaptation most characteristic after endurance training — இதய-இரத்த ஓட்டம் மாற்றம்

↓ Hemoglobin concentration

↓ Arterio-venous O₂ difference

↑ Plasma volume and EDV → ↑ Stroke volume at rest/submax

↑ Max HR

High force at near-max voluntary contraction depends primarily on — அதிக வலு உருவாக்கம்

Recruitment only of small units

Muscle viscosity changes

Rate coding (frequency) at high forces

Golgi tendon organ inhibition

Increase in pennation angle from hypertrophy primarily — பென்னேஷன் கோணம் உயர்வு

Does not change force or velocity

Increases shortening velocity substantially

Decreases force capacity

Increases physiological CSA and force despite slower shortening

Exception to Henneman size principle — விதியின் விதிவிலக்கு

High-velocity ballistic actions recruiting large units early

Slow walking

Submax cycling

Isometric holds

Thermoregulation in hot-humid conditions — சூடான ஈரநிலையில் வெப்ப ஒழுங்குபடுத்தல்

Evaporation limited; reliance on vasodilation and convective airflow

Evaporation highly effective

Radiation dominant

Conduction becomes main pathway

Initial altitude acclimatization (days) typical responses — உயர நிலை ஒத்துழைவு

Immediate ↑ RBC mass within 12 h

↓ 2,3-BPG levels

↓ Ventilation, ↑ plasma volume

↑ Ventilation with respiratory alkalosis, ↓ plasma volume, ↑ EPO

EPOC hormonal milieu — ஈபாக் ஹார்மோன் நிலை

↑ Catecholamines, GH; insulin suppressed; cortisol may be elevated

↑ Catecholamines & GH; insulin markedly elevated

Only thyroid hormones elevated

All hormones decrease

Endurance training effect on lungs at rest — ஏரோபிக் பயிற்சி மற்றும் சுவாசம்

Large ↑ resting TLC and static volumes

Minimal structural change; better diffusion and ventilatory efficiency

Eliminates exercise-induced arterial desaturation

Marked ↓ FEV₁

Fatigue model signalling — களைப்பு சைகைகள்

Only potassium shifts

Only glycogen depletion

Only peripheral metabolite accumulation

CNS drive inhibition via group III/IV afferents plus peripheral factors

Classic glycogen supercompensation final phase — குளைகோஜன் லோடிங் இறுதி கட்டம்

No taper required

7 days at 2 g·kg⁻¹·d⁻¹

36–48 h at ~10–12 g·kg⁻¹·d⁻¹

24 h at 4 g·kg⁻¹·d⁻¹

Protein intake for strength hypertrophy vs endurance repair — புரதத் தேவைகள்

Strength ~1.6–2.2; Endurance ~1.2–1.6

Strength 2.5–3.5; Endurance 0.5–0.8

Strength 0.9; Endurance 2.5–3.5

Both 0.8 g·kg⁻¹·d⁻¹

Leucine trigger per meal for MPS — லியூசின் ‘த்ரெஷ்ஹோல்ட்’

~0.5 g

No threshold exists

~6–8 g

~2–3 g

Electrolyte in sports drink optimal sodium — ஸ்போர்ட்ஸ் டிரிங்கில் சோடியம்

8–12 mmol·L⁻¹

20–30 mmol·L⁻¹

2–5 mmol·L⁻¹

60–80 mmol·L⁻¹

Exercise-associated hyponatremia risk factor — ஹைப்போநாட்ரேமியா

Drinking to thirst only

Overdrinking hypotonic fluids beyond sweat losses

Short events <30 min

Using sodium in drink

Caffeine ergogenic dose & mechanism — கஃபீன்

0.5 mg·kg⁻¹; increases lactate only

3–6 mg·kg⁻¹; adenosine antagonism, CNS arousal

Only fat oxidation explains benefits

>12 mg·kg⁻¹ compulsory

β-Alanine chiefly benefits — பேட்டா-அலனின்

Pure maximal strength 1RM

Marathon pacing exclusively

1–4 min severe intensity bouts via ↑ carnosine

Ultra-endurance >4 h

Creatine monohydrate loading–maintenance — கிரியேட்டின்

Maintenance only 10–15 g·d⁻¹

Loading ~20 g·d⁻¹ for 5–7 days; maintenance 3–5 g·d⁻¹

Loading 5 g·d⁻¹ for 1 day

Loading 0.5 g·kg⁻¹·d⁻¹

Nitrate/beetroot juice likely improves — நைட்ரேட்

Economy and TT in moderate intensity via NO

Only sprint <10 s

Only strength 1RM

No effect on trained humans

Body-composition: DXA vs BIA vs UWW — உடல் அமைப்பு

Skinfolds are identical to DXA in all cases

UWW assumes constant FFM density, may bias athletes

DXA provides compartmental bone/lean/fat with low typical error

BIA is gold standard

Doping category — டோப்பிங் வகை

Creatine is WADA-banned anabolic

EPO is prohibited peptide hormone/ growth factor

β₂-agonists all permitted freely

Caffeine is banned in-competition

RED-S (Female Athlete Triad) components — ஆரோக்கிய குறைவு

Only vitamin D deficiency

Low energy, high BMD, normal menses

Low energy availability, menstrual dysfunction, low BMD

High energy intake, amenorrhea, high BMD

Pre-exercise glycemic index choice for endurance — முன் உணவு

Avoid carbohydrate entirely

GI irrelevant always

High-GI 30 min before for better fat use

Low-GI 1–3 h before to sustain glucose

Multiple-transportable CHO max oxidation rate — கலவை கார்ப்

~30 g·h⁻¹

>150 g·h⁻¹ reliably

~60 g·h⁻¹

~90 g·h⁻¹ (glucose+fructose)

Fiber-type transition with endurance training — நார் மாற்றம்

IIa → IIx

I ↔ IIa large bidirectional shifts

I → IIx

IIx → IIa predominates

Ventilatory vs lactate thresholds — வென்டிலேட்டரி

VT2 occurs at rest

VT1 equals VO₂max

VT1 approximates LT1; VT2 approximates OBLA but not identical

Both thresholds always identical to lactate points

Recovery modality effect — குளிர் நீர் மூழ்குதல்

Eliminates soreness etiology

May blunt strength/hypertrophy signalling if used after every session

Always enhances hypertrophy via mTOR

Contraindicated for endurance adaptations

Research: best statement of a good hypothesis — ஆராய்ச்சி கருதுகோள்

Non-testable philosophical claim

Only null form allowed

Vague question without variables

Clear, testable, directional/relational when appropriate

APA (7th) reference for journal requires — APA 7

Sentence case for article title; italicized journal and volume; DOI as URL

All authors after 1st use ‘et al.’ in reference list

No DOI if available

Title case for article title

question

Level of measurement for 200 m sprint time — 200 மீ நேர அளவு

Nominal

Interval

Ratio

Ordinal

Parametric test for three repeated time-points on same athletes — மூன்று மறுஆய்வுத் தருணங்கள்

One-way ANOVA independent

Repeated-measures ANOVA

Kruskal–Wallis

Friedman ANOVA

Key assumption for Pearson r — பியர்சன் தொடர்பு

Independence not needed

Only equal group sizes

Bivariate normality and linearity

Orthogonality of predictors

Heteroscedastic unequal-variance two-group means — வேறுபட்ட வேறுபாடுகள்

Mann–Whitney U

Student’s pooled t

Paired t-test

Welch’s t-test

Small-sample unbiased effect size for two means — குறுகிய மாதிரி விளைவளவு

Cohen’s d (uncorrected)

Hedges’ g

Glass’ Δ with control SD always

Eta-squared

100

CI for correlation uses — தொடர்பு நம்பகத்தன்மை

Wilson score

Fisher z-transformation with back-conversion

Poisson limits

Student t directly

101

Positive skewness implies — நேர்மறை சாய்வு

Median undefined

Mean = Median

Mean > Median

Mean < Median

102

Statistical power increases with — பவர்

Lower α always

More measurement error

Larger effect size, larger n, higher α

Smaller effect and smaller n

103

Normal curve coverage within ±1 SD — சாதாரண வளைவு

≈50%

≈99.73%

≈68.27%

≈95.45%

104

Sampling plan: ensure proportionate representation of male/female and age strata — மாதிரி வகை

Systematic sampling only

Stratified random sampling

Cluster sampling

Convenience sampling

105

Ordinal tournament rankings with many ties — தொடர்பு அளவீடு

Kendall τ-b

Point-biserial r

Pearson r

Spearman ρ

106

Best display for distribution of sprint times — வரைபடம்

Pie chart

Histogram (or density)

Radar chart

Stacked bar of categories

107

Relationship between two-group ANOVA and t-test — உறவு

t² = F with df₁=1

t = F

t = √F with df₂=1

No relation

108

Type I error at α=0.01 means — பிழை

10% chance of Type II error

1% chance of failing to reject false null

1% chance of rejecting a true null

Power equals 0.99

109

APA-7 journal reference DOI format — டிஓஐ வடிவம்

DOI omitted if available online

doi:10.1037/xlm0000000

http://dx.doi.org/10.1037/xlm0000000

https://doi.org/10.1037/xlm0000000

110

Research ethics essential step — ஒழுக்கம்

Copying methods text without citation is acceptable

Informed consent and institutional approval

Only de-identification is sufficient

No consent needed for minimal risk

Physical Education — Unit 99 — Test 1

Result

Test Analysis

Your History

Leaderboard

Attempt Analysis

Explanations